Mariya's mistake in solving the inequality and plotting the number line is in step 3.
What is Inequality?In mathematics, an inequality is a statement that compares two values or expressions, indicating whether they are equal, not equal, greater than, less than, greater than or equal to, or less than or equal to each other.
Inequalities can be solved by manipulating them in much the same way as equations, but with one important difference: when an inequality is multiplied or divided by a negative number, the direction of the inequality is reversed. For example, if we have the inequality -3x > 12, we can solve for x by dividing both sides by -3, but we also need to reverse the direction of the inequality, giving us x < -4.
The inequality is given as:
[tex]$\frac{a}{-13}\leq-16$[/tex]
Multiply both sides of the inequality by -13
a ≥ 208
The above means that the solution to the inequality are numbers greater than or equal to 208.
This means that we make use of a closed circle
In step 3 of Mariya's solution, the number line uses an open circle
Hence, Mariya's mistake is in step 3
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The complete question is:
Mariya was asked to solve Start Fraction a over negative 13 End Fraction less-than-or-equal-to negative 16 and then graph the solution. Her work is shown below. Step Mariya’s work Start Fraction a over negative 13 End Fraction less-than-or-equal-to negative 16 Step 1 (Negative 13) Start Fraction a over negative 13 End Fraction less-than-or-equal-to negative 16 (negative 13) Step 2 a greater-than-or-equal-to 208 Step 3 A number line going from 205 to 211. An open circle is at 208. Everything to the right of the circle is shaded. In which step, if any, did Mariya make a mistake in her work? Step 1 Step 2 Step 3 No mistake found
1.2cm radius
4cm height
Pls help me find the surface area and volume
Answer:
if its a circle
Volume - 7.20 cm
Surface area 18.1 cm
Step-by-step explanation:
Volume of a sphere = 4/3 πr^3
4/3 (3.14) 1.2^3
4/3 (3.14) 1.728
4/3 of 5.42592=
7.23456 or 7.20
Surface area of sphere = 4πr²
4(3.14) 1.2^2
4(3.14) 1.44
4 (4.5216) =
18.0864 or 18.1
What is the equation that represents the circle shown on the graph?
Equation
The equation of the circle is represented by [tex]x^{2} + (y-3)^{2} = 16[/tex] with radius of the circle as r = 4.
How to find the equation of the circle?
To find the equation of the circle is
[tex](x-h)^{2} + (y-k)^{2} = r^{2}[/tex]
here h is the x- coordinate of the center of the circle
k is the y- coordinate of the center of the circle
r is the radius of the circle
From the given figure,
h = 0
k = 3
r = 4
putting all the values of the above equation
[tex](x-0)^{2} + (y - 3)^{2} = 4^{2}[/tex]
[tex]x^{2} + (y-3)^{2} = 16[/tex]
Therefore the equation of the circle is
[tex]x^{2} + (y-3)^{2} = 16[/tex]
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Noemi strings together x green beads at $0.75 each with 3 blue beads at $0.30 each. She makes a bracelet that averages $0.60 per bead. How many green beads does Noemi use?
Answer: Noemi strings together 6 green beads at $0.75 each to make the bracelet.
Step-by-step explanation:Let's start by using algebra to solve the problem. We can begin by letting x be the number of green beads that Noemi strings together. Then, the cost of the green beads will be 0.75x, and the cost of the blue beads will be 3 × 0.30 = 0.90.
The total cost of the bracelet will be the sum of the cost of the green and blue beads, which is 0.75x + 0.90. The total number of beads on the bracelet will be x + 3.
We know that the average cost per bead is $0.60. We can write this as:
(0.75x + 0.90)/(x + 3) = 0.60
Now we can solve for x:
0.75x + 0.90 = 0.60(x + 3)
0.75x + 0.90 = 0.60x + 1.80
0.15x = 0.90
x = 6
Therefore, Noemi strings together 6 green beads at $0.75 each to make the bracelet.
An airline has a new plane with 120 seats and a new route from panama city, FL to New York city, NY. The function F(x) models the profit the airline makes, where x is the cost per seat. The table of values for function f(x) is shown
The correlation coefficient between x and f(x) is approximately 0.39. This suggests a weak positive correlation between the cost per seat and the profit the airline makes.
What is Correlation Coefficient?The precise metric used in a correlation analysis to quantify the strength of the linear relationship between two variables is the correlation coefficient.
To calculate the correlation coefficient between x and f(x), we need to calculate several quantities first:
mean of x:
[tex]$\overline{x}[/tex] = {50+35+60+65+70+75+80}{7} = {435}/{7}
= 62.14
mean of f(x):
[tex]$\overline{f(x)}[/tex]= {1,272 + 1,884.5 + 2,322 + 2,584.5 + 2,672 + 2,584.5 + 2,322}/{7}
= 2,112.86
and, standard deviation of x:
[tex]$s_x[/tex]=[tex]\sqrt{\frac{\sum_{i=1}^n (x_i - \overline{x})^2}{n-1}}[/tex]
= [tex]= \sqrt{\frac{(50-62.14)^2 + (35-62.14)^2 + (60-62.14)^2 + (65-62.14)^2 + (70-62.14)^2 + (75-62.14)^2 + (80-62.14)^2}{6}} \\\approx 17.27$[/tex]
and, standard deviation of f(x):
[tex]$s_{f(x)} = \sqrt{\frac{\sum_{i=1}^n (f(x_i) - \overline{f(x)})^2}{n-1}}[/tex]
= (1,272-2,112.86)² + (1,884.5-2,112.86)² + (2,322-2,112.86)² + (2,584.5-2,112.86)² + (2,672-2,112.86)²+ (2,584.5-2,112.86)² + (2,322-2,112.86)²}/ 6
= 385.09
Now, covariance of x and f(x):
[tex]$cov(x,f(x)) = \frac{\sum_{i=1}^n (x_i - \overline{x})(f(x_i) - \overline{f(x)})}{n-1}[/tex]
= {(50-62.14)(1,272-2,112.86) + (35-62.14)(1,884.5-2,112.86) + (60-62.14)(2,322-2,112.86) + (65-62.14)(2,584.5-2,112.86) + (70-62.14)(2,672-2,112.86) + (75-62.14)(2,584.5-2,112.86) + (80-62.14)(2,322-2,112.86)} / 6
= 762.36
Using these values, we can calculate the correlation coefficient:
[tex]$r = \frac{cov(x,f(x))}{s_x s_{f(x)}} = \frac{762.36}{17.27 \cdot 385.09} \approx 0.39$[/tex]
Therefore, the correlation coefficient between x and f(x) is approximately 0.39. This suggests a weak positive correlation between the cost per seat and the profit the airline makes.
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In one part of the world, the number of a certain species of forest wildflowers is expected to grow according to the
function f graphed below. In another area of the world, the same species is expected to grow according to the the
function g represented by the data in the table. The values for x in each function represent time, in decades.
what function has the greater initial value
in a third area, the number of flowering plants is expected to grow according to the following description the initial count is 1500 and for each decade moving forward the count will increase by 200. Will this model be linear or exponential what is the model that relates the number of plants h to the number of decades x
Answer:
f(x) has the greater initial value.
linear; h(x) = 200x + 1500
Step-by-step explanation:
f(0) = 1000
g(0) = 750
Therefore, f(x) has the greater initial value.
In the third area, the model is linear and the function would be:
h(x) = 200x + 1500
a coin is tossed twice.what is the probability of tossing heads and then tails, given that the coin already shows heads in the first toss?
The probability of tossing heads and then tails, given that the coin already shows heads in the first toss, is 1/2.
Let's first find the sample space of this experiment, which is {HH, HT, TH, TT}. We know that the coin has already shown heads in the first toss, so we can eliminate TT from the sample space. Therefore, the new sample space becomes {HH, HT, TH}.
Out of these three possible outcomes, only one satisfies the given condition of tossing heads and then tails, which is HT. Therefore, the probability of tossing heads and then tails, given that the coin already shows heads in the first toss, is 1/2 (i.e., one favorable outcome out of two possible outcomes).
Therefore, the probability of tossing heads and then tails, given that the coin already shows heads in the first toss, is 1/2, as there is only one favorable outcome out of the two possible outcomes in the new sample space after eliminating TT.
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the point (-2, y) is on the same line as the points (1, 2) and (7, -1). What is the value of y?
that means that the slope for all three points is the same, since all are collinear, hmmm what's the slope of (1 , 2) and (7 , -1)?
[tex](\stackrel{x_1}{1}~,~\stackrel{y_1}{2})\qquad (\stackrel{x_2}{7}~,~\stackrel{y_2}{-1}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{-1}-\stackrel{y1}{2}}}{\underset{\textit{\large run}} {\underset{x_2}{7}-\underset{x_1}{1}}} \implies \cfrac{ -3 }{ 6 } \implies - \cfrac{1 }{ 2 }[/tex]
ahaaa!, that means from from (-2 , y) and either of those points is the same slope of -1/2, so
[tex](\stackrel{x_1}{-2}~,~\stackrel{y_1}{y})\qquad (\stackrel{x_2}{7}~,~\stackrel{y_2}{-1})[/tex]
[tex]\stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{-1}-\stackrel{y1}{y}}}{\underset{\textit{\large run}} {\underset{x_2}{7}-\underset{x_1}{(-2)}}} ~~ = ~~\stackrel{\stackrel{\textit{\small slope}}{\downarrow }}{ \cfrac{ -1 }{ 2 }}\implies \cfrac{-1-y}{7+2}=\cfrac{-1}{2}\implies \cfrac{-1-y}{9}=\cfrac{-1}{2} \\\\\\ -2-2y=-9\implies -2y=-7\implies y=\cfrac{-7}{-2}\implies y=\cfrac{7}{2}[/tex]
Answer:
Step-by-step explanation: (-2, y) (1, 2) and (7, -1) wat is the value of y
Please help
What was the balance before the ATM withdrawal on June 5?
Answer: 586.20
Step-by-step explanation:
you add the balance on june 5th with the amount withdrawed to get the past balance
6.4 a bus arrives every 10 minutes at a bus stop. it is assumed that the waiting time for a particular individual is a random variable with a continuous uniform distribution. what is the probability that the individual waits more than 7 minutes? what is the probability that the individual waits between 2 and 7 minutes?
The probability that the individual waits more than 7 minutes is 0.3 or 30%. The probability that the individual waits between 2 and 7 minutes is 0.5 or 50%.
Let X be the waiting time for a particular individual at the bus stop. As per the given information, X follows a continuous uniform distribution with parameters a=0 and b=10 (as the bus arrives every 10 minutes).
The probability that the individual waits more than 7 minutes can be calculated as follows:
P(X > 7) = (b-7)/(b-a) = (10-7)/(10-0) = 3/10 = 0.3
Similarly, the probability that the individual waits between 2 and 7 minutes can be calculated as follows:
P(2 < X < 7) = (7-2)/(10-0) = 5/10 = 0.5
In summary, the probability that the individual waits more than 7 minutes is 0.3 and the probability that the individual waits between 2 and 7 minutes is 0.5. This means that there is a higher chance that the individual waits between 2 and 7 minutes than waiting for more than 7 minutes.
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Two groups of friends went to the local movie theater. The first group bought four large buckets of
popcorn and five boxes of candy and spent $42.75. The second group spent $25.50 on two boxes of
candy and three large buckets of popcorn.
How much would one large popcorn and one box of candy cost?
One large bucket of popcorn costs $6 and one box of candy costs $3.75.
To solve this problemLet's call the cost of one large bucket of popcorn as "p" and the cost of one box of candy as "c". We can set up two equations based on the information given in the problem :
Equation 1: 4p + 5c = 42.75 (first group's purchase)
Equation 2: 3p + 2c = 25.50 (second group's purchase)
We can use any method to solve these equations, such as substitution or elimination.
Let's use the elimination method by multiplying both sides of Equation 1 by 2 and both sides of Equation 2 by -5 to eliminate "c" and get an equation in terms of "p":
8p + 10c = 85.50 (multiplying Equation 1 by 2)
-15p - 10c = -127.50 (multiplying Equation 2 by -5)
Adding the two equations, we get :
-7p = -42
p = 6
Now we can substitute the value of "p" into either Equation 1 or Equation 2 to solve for "c". Let's use Equation 1:
4(6) + 5c = 42.75
24 + 5c = 42.75
5c = 18.75
c = 3.75
Therefore, one large bucket of popcorn costs $6 and one box of candy costs $3.75.
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Pls help, its easy I just dont want to do it.
Step-by-step explanation:
The green triangle :
The angle x is 65°
this is because both the sides are equal so when the other angle is 65° angle x is also 65°
The blue triangle :
The angle x is 25°
this is because both the sides are equal so when the other angle is 25° angle x is also 25°
The red triangle :
The angle x is 45°
this is because both the sides are equal so when the other angle is 45° angle x is also 45°
A rectangular prism has a volume of 12,500 cubic inches and is 50 inches tall.
Which equation can be used to find B, the area of the base of the prism?
Group of answer choices -
A. 12500=50B
B. 12500=B/50
C. 12500=50/B
D. 50=12500B
The for the given volume of 12,500 cubic inches for rectangular prism, the base area will be estimated by equation: A. 12500=50B.
Explain about the rectangular prism:A rectangular prism is one of the more typical shapes for prisms. One definition of a rectangular prism is a prism with rectangle-shaped bases. The other surfaces are also rectangles because the bases are rectangles. These are a rectangular prism's characteristics:
two parallel rectangular basesCongruent as well as parallel rectangles on three facestotal of six rectangular facesGiven:
volume of rectangular prism = 12,500 cubic inches
Height h = 50 inches.
Let the base area be B.
Then,
volume of rectangular prism = B*h
12500 = B*50
12500 = 50B (required equation)
B = 12500/50
B = 250 unit sq.
Thus, the for the given volume of 12,500 cubic inches for rectangular prism, the base area will be estimated by equation: A. 12500=50B.
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the ability of a study to detect a difference if one actually exists is called what? group of answer choices beta alpha significance power
The ability of a study to detect a difference if one actually exists is called option (d) power
Power in statistics is the probability of correctly rejecting a false null hypothesis. In other words, it is the ability of a statistical test to detect a difference or effect if one actually exists in the population being studied. A study with high power has a low probability of a Type II error (failing to reject a false null hypothesis) and a high probability of correctly detecting a true difference or effect.
Power is affected by several factors, including sample size, effect size, level of significance (alpha), and variability of the data. Researchers often aim for a power of at least 80% to ensure that their study has a reasonable chance of detecting a meaningful effect.
Therefore, the correct option is (d) power
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y=2x+35
y=9x
ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
Answer:
To find the point of intersection between the two lines represented by the equations:
y = 2x + 35
y = 9x
We can set the two equations equal to each other and solve for x:
2x + 35 = 9x
Subtracting 2x from both sides:
35 = 7x
Dividing both sides by 7:
x = 5
Now that we have found the value of x, we can substitute it back into either of the original equations to find the value of y. Using the second equation:
y = 9x = 9(5) = 45
Therefore, the point of intersection between the two lines is (5, 45).
Step-by-step explanation:
Answer:
x=5 and y=45; (5,45)
Step-by-step explanation:
Step One→ Solve one equation for either x or y.
Step Two→ Substitute the expression from step one into the 2nd equation.
Step Three→ Solve the second equation for the given variable.
Step Four→ Plug your solution back into the first equation.
Step Five→ Write your solution as a point.
In the figure below DB and AC are diameters of circle P. The length of PB is 8 units . What is the length of DC
Thus, the arc length of DC for the given central angle of circle is found as: 16.74 units.
Explain about the arc length:Arc Length Formula: Assume a circle with radius r. If a circle's arc of length s subtends a central angle theta (measured in radians), the formula is as follows: r X theta = s.
Radian Measure: The centre angle must only be expressed in radian measure with in arc length formula above.A novel method of calculating angles in circles is suggested using arc length. Angles can also be measured in radians instead of the previous method of measuring all angles in degrees. The angle of one radian results in an arc whose length is equal to the radius.For the given circle:
Radius r = 8 units.angle APD = 60 degrees.Thus,
∠APD + ∠DPC = 180° (angle sum property of triangle)
60 + ∠DPC = 180°
∠DPC = 180° - 60°
∠DPC = 120°
Using the formula for the arc length:
Arc length = Ф/360 * 2*π*r
Arc length DC = 120/360 * 2*3.14*8
Arc length DC = 16.74 units
Thus, the arc length of DC for the given central angle of circle is found as: 16.74 units.
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Complete question:
In the figure below DB and AC are diameters of circle P. The length of PB is 8 units . What is the arc length of DC.
The figure is attached.
the length of timber cuts are normally distributed with a mean of 95 inches and a standard deviation of 0.52 inches. in a random sample of 45 boards, what is the probability that the mean of the sample will be between 94.5 inches and 95.1 inches? g
The probability that the mean of a sample of 45 boards will be between 94.5 inches and 95.1 inches, given that the length of timber cuts are normally distributed with a mean of 95 inches and a standard deviation of 0.52 inches, can be calculated using the Central Limit Theorem. The theorem states that the distribution of sample means will be approximately normally distributed with a mean equal to the population mean and a standard deviation equal to the population standard deviation divided by the square root of the sample size.
In this case, the population mean (μ) is 95 inches, the population standard deviation (σ) is 0.52 inches, and the sample size (n) is 45. The standard deviation of the sample mean is σ/√n = 0.52/√45 ≈ 0.0775.
To find the probability, we can use the Z-score formula:
Z = (X - μ) / (σ/√n)
For the lower limit of 94.5 inches, the Z-score is:
Z1 = (94.5 - 95) / 0.0775 ≈ -6.45
For the upper limit of 95.1 inches, the Z-score is:
Z2 = (95.1 - 95) / 0.0775 ≈ 1.29
Now, using a Z-table or calculator, find the probability for each Z-score:
P(Z1) ≈ 0 (since it is a very low Z-score)
P(Z2) ≈ 0.9015
The probability that the mean of the sample will be between 94.5 inches and 95.1 inches is the difference between these probabilities:
P(94.5 < X < 95.1) = P(Z2) - P(Z1) = 0.9015 - 0 ≈ 0.9015, or approximately 90.15%.
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What is the sum of 25 and h, divided by f cubed?
The expression for the given statement can be written as (25 + h) / f³.
What is sum?A sum is the result of adding two or more numbers together. For example, the sum of 2 and 3 is 5, which is obtained by adding 2 and 3. In mathematical notation, we can represent this as:
2 + 3 = 5
According to question:The expression for the given statement can be written as:
(25 + h) / f³
where h and f are variables.
If you have specific values for h and f, you can substitute them into the expression and evaluate it. Otherwise, you can leave the expression as it is.
The expression "(25 + h) / f³" represents the result of adding 25 to the value of h, and then dividing the sum by the cube of the value of f.
In general, if you have specific values for h and f, you can substitute them into the expression and evaluate it. If you don't have specific values for h and f, you can leave the expression as it is. This expression is an algebraic expression, which means it contains variables (h and f) and mathematical operations (+, /, and ³).
Note that division is performed before addition, so the sum of 25 and h is first calculated, and then the result is divided by f³.
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QUICK !
A rectangle has a length that is 2 units longer than the width, w.
Complete the equation representing the area of the rectangle, in square units.
A= ( )( )
Options: w-2, w, w+2, 2w, 2w+2, 2w+4.
The equation representing the area of the rectangle with width w is A = w² + 2w.
We have a rectangle with a length that is 2 units longer than the width w. Let's refer to the rectangle's length as L. Then we have:
[tex]L = w + 2[/tex]
The product of a rectangle's length and breadth determines its area A. So, to find an equation representing the area of the rectangle, we need to multiply the length L by the width w. Substituting L with the expression we got from the problem statement, we get:
A = L × w
A = (w + 2) × w
A = w² + 2w
This is the final equation representing the area of the rectangle in terms of its width w
This is a quadratic equation in standard form, where the coefficient of the squared term is 1, the coefficient of the linear term is 2, and the constant term is 0. We can use this equation to find the area of the rectangle for any given width w.
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A superhero action figure has volume 1700 cubic centimeters. The figure is dilated to create a store display.
The volume of the dilated figure is 25,500 cubic centimeters
What was the approximate scale factor of the dilation? (Round your answer to the nearest tenth, one decimal place ex. 4.2)
Therefore , the solution of the given problem of surface area comes out to be scale factor of the dilation is 15.0, rounded to one decimal point.
What does an area actually mean?By calculating how much space would be needed to fully enclose its exterior, its overall size can be calculated. The surrounding region is considered when selecting a comparable product in the rectangular design. The surface area of something determines its overall dimensions. The number of sides connecting a cuboid's four trapezoidal forms determines how much water it can hold.
Here,
By dividing the volume of the dilated figure by the volume of the initial figure, we can determine the scale factor of the dilation:
volume of dilated figure / volume of initial figure is the scale factor.
Scale factor:
=> 25,500/1700 cm3
=> 15 scale factor
The approximate scale factor of the dilation is 15.0, rounded to one decimal point.
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Maia was baking cupcakes for a party. She mixed 4 drops of red food coloring for every 6 drops of yellow food coloring to dye her icing orange. Circle the ratios of food coloring drops that would create the same orange color and justify your choices.
2 red to 3 yellow 40 yellow to 100 red 44 red to 66 yellow 24 red to 26 yellow 28 red to 42 yellow
The ratios that would create the same orange color as Maia's ratio of [tex]2:3[/tex] are [tex]2[/tex] red to [tex]3[/tex] yellow, [tex]44[/tex] red to [tex]66[/tex] yellow, and [tex]28[/tex] red to [tex]42[/tex] yellow.
What are the ratios?The ratio of 4 drops of red food coloring to 6 drops of yellow food coloring can be simplified to 2:3 by dividing both numbers by 2. This means that for every 2 drops of red food coloring, Maia used 3 drops of yellow food coloring to create orange icing.
Let's evaluate each of the given ratios:
2 red to 3 yellow: This ratio is equivalent to Maia's ratio of 2:3, so it would create the same orange color.
40 yellow to 100 red: We can simplify this ratio by dividing both numbers by 20, giving us 2 yellow to 5 red. This ratio is not equivalent to Maia's ratio of 2:3, so it would not create the same orange color.
44 red to 66 yellow: We can simplify this ratio by dividing both numbers by 22, giving us 2 red to 3 yellow. This ratio is equivalent to Maia's ratio of 2:3, so it would create the same orange color.
24 red to 26 yellow: We can simplify this ratio by dividing both numbers by 2, giving us 12 red to 13 yellow. This ratio is not equivalent to Maia's ratio of 2:3, so it would not create the same orange color.
28 red to 42 yellow: We can simplify this ratio by dividing both numbers by 14, giving us 2 red to 3 yellow. This ratio is equivalent to Maia's ratio of 2:3, so it would create the same orange color.
Therefore, the ratios that would create the same orange color as Maia's ratio of [tex]2:3[/tex] are [tex]2[/tex] red to [tex]3[/tex] yellow, [tex]44[/tex] red to [tex]66[/tex] yellow, and [tex]28[/tex] red to [tex]42[/tex] yellow.
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The citizens of a city were asked to choose their favorite pet. The circle graph shows how the citizens answered. If 80,000 citizens answered the question, how many chose Fish or Snakes?
fish 12%
dogs 25%
birds 22%
cats 23%
snakes 10%
hamsters 8%
17,600 citizens chose Fish or Snakes.
What is circle graph?
A circle graph, also known as a pie chart, is a type of data visualization used to represent data in a circular format. It is called a pie chart because the graph resembles a pie, which is divided into slices or sectors, where each sector represents a portion of the whole data set. The size of each slice is proportional to the corresponding value it represents in the data set. The circle graph is often used to show relative sizes of different categories or portions of a whole. It is a popular way to display data in business, statistics, and other fields.
According to the given information, the percentage of citizens who chose Fish or Snakes is 12% + 10% = 22%.
It is also given total number of citizens are 80,000.
To find the number of citizens who chose Fish or Snakes, we can first calculate 22% of 80,000,
[tex]22\% \: of \: 80000 \\ = \frac{22}{100} \times 80000 \\ = 0.22 \times 80,000 \\ = 17,600[/tex]
Therefore, 17,600 citizens chose Fish or Snakes.
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[tex]9x^2-4(y+2x)^{2}[/tex]
Answer:
Step-by-step explanation:
by identity a²-b² =(a-b)(a+b)
9x² = (3x)²
4(y+2x)² = 2²(y+2x)² = (2(y+2x))²=(2y+4x)²
so : a = 3x and b = 2y+4x
put a and b in this identity a²-b² =(a-b)(a+b) ....continu
tell whether segment QS is a diameter of circle c
QS is the diameter of circle
Define circleA circle is a two-dimensional geometric shape consisting of all points in a plane that are a given distance from a fixed point called the center. It is a closed shape, meaning it has no beginning or end, and every point on its perimeter is equidistant from the center. The distance from the center to any point on the circle is called the radius, and the distance across the circle through the center is called the diameter
In the given circle QS bisects perpendicularly the chord PR in two equal part. so, it must pass through center of circle.
QS is passing through center.
The chord passing through center is called as diameter of circle.
Hence, QS is the diameter of circle.
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The circumference of a circle is 5π ft. What is the area, in square feet? Express your answer in terms of \piπ.
Answer: We know that the formula for the circumference of a circle is:
Circumference = 2πr
where r is the radius of the circle.
In this problem, we are given the circumference, which is 5π ft, so we can set up an equation:
5π = 2πr
Dividing both sides by 2π, we get:
r = 5/2 feet
Now that we know the radius, we can use the formula for the area of a circle:
Area = πr^2
Substituting in the value of r that we found, we get:
Area = π(5/2)^2
Area = π(25/4)
Simplifying, we get:
Area = 25π/4
Therefore, the area of the circle is 25π/4 square feet.
Step-by-step explanation:
A storage box is shaped like a rectangular prism, as shown below. Skylar stored
1/2 -inch cubes in the box.
How many cubes are needed to completely fill the box?
54 cubes
108 cubes
72 cubes
27 cubes
pls explain your answer
The correct answer is that 60 cubes are needed to completely fill the box.
What are the cubes?
We can find the number of cubes needed to fill the box by dividing the volume of the box by the volume of one cube. Since the cubes are 1/2 inch on each side, their volume is (1/2)³ = 1/8 in³
To find the volume of the box, we need to multiply its length, width, and height:
Volume of box = 5 × 4 × 3 = 60 in³
Now we can divide the volume of the box by the volume of one cube to find the total number of cubes needed:
Total cubes = Volume of box / Volume of one cube
Total cubes = 60 / (1/8)
Total cubes = 480
Therefore, the correct answer is not one of the given options. However, if we divide 480 by 2 (since the cubes are 1/2 inch on each side), we get:
Total cubes = 480 / 2 = 240
And if we divide 240 by 4 (since the box has dimensions of 5, 4, and 3 units), we get:
Total cubes = 240 / 4 = 60
Therefore, the correct answer is that 60 cubes are needed to completely fill the box.
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Identify the shape, explain how you found your answer.
Answer:
The shape in the image is a trapezoid. It is a quadrilateral with one pair of parallel sides.
Step-by-step explanation:
¿Cuál será el fenotipo de un individuo I a
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Write a formula for the nth term of the arithmetic sequence with the third term 7 and the common difference -2
So the formula for the nth term of the arithmetic sequence with the third term 7 and the common difference -2 is aₙ = 13 - 2n.
An arithmetic sequence's nth term is represented by the formula:
aₙ = a₁ + (n-1)d
In this case, we are given that the third term is 7, so we can use this information to find a₁:
a₃ = a₁ + (3-1)(-2)
7 = a₁ - 4
a₁ = 11
Now we have a₁ and d, so we can write the formula for the nth term:
aₙ = 11 + (n-1)(-2)
Simplifying this expression, we get:
aₙ = 13 - 2n
So the formula for the nth term of the arithmetic sequence with the third term 7 and the common difference is
-2 is aₙ = 13 - 2n.
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The image of the point ( 6 , − 9 ) (6,−9) under a translation is ( 11 , − 4 ) (11,−4). Find the coordinates of the image of the point ( − 3 , − 2 ) (−3,−2) under the same translation
The translation vector is (5, 5). Now we can find the image of point (-3, -2) under the same translation: (-3+5, -2+5) = (2, 3)
What are coordinates?
A pair of numbers that use the separations between the two reference axes to define the location of a point on a coordinate plane. usually represented by the x- and y-values, respectively, (x, y).
Let's denote the translation vector as (a, b), then the image of point (x, y) under the translation is given by (x+a, y+b).
We know that the image of point (6, -9) under the translation is (11, -4), so we can write:
(6+a, -9+b) = (11, -4)
Solving this system of equations for a and b, we get:
a = 5 and b = 5
Therefore, the translation vector is (5, 5). Now we can find the image of point (-3, -2) under the same translation:
(-3+5, -2+5) = (2, 3)
So the image of point (-3, -2) under the given translation is (2, 3).
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Cual es el término general de la sucesión 4, 9, 14, 19, 24
Ll término general de la sucesión 4, 9, 14, 19, 24 es an = 5n - 1.
Progresión aritméticaLa sucesión 4, 9, 14, 19, 24 es una progresión progresión aritméticacon una diferencia común de 5.
El término general de una progresión aritmética se puede encontrar utilizando la fórmula:
an = a1 + (n - 1)d
donde:
an = el término general que se desea encontrar
a1 = el primer término de la progresión
n = la posición del término que se desea encontrar
d = la diferencia común de la progresión
En este caso, a1 = 4 y d = 5. Para encontrar el término general para cualquier posición n, podemos sustituir estos valores en la fórmula y simplificar:
an = a1 + (n - 1)dan = 4 + (n - 1)5an = 4 + 5n - 5an = 5n - 1Por lo tanto, el término general de la sucesión 4, 9, 14, 19, 24 es an = 5n - 1.
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