The area of a sector of a circle with a radius measuring 15 cm is 75(pi) cm2. What is the measure of the central angle that forms the
sector?
The sector of the circle is bounded by 2 radii, and the measure of the central angle that forms the sector is 120 degrees
How to determine the central angle?The given parameters are:
Area = 75π cm^2Radius, r = 15 cmThe area is calculated using
Area = α/360 * πr^2
So, we have:
α/360 * π * 15^2 = 75π
Evaluate the exponent
α/360 * π * 225 = 75π
Divide both sides by 75π
α/360 * 3 = 1
Multiply
α/120 = 1
Multiply both sides by 120
α = 120
Hence, the measure of the central angle that forms the sector is 120 degrees
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What is the answer to -5x+2y-8x+6y
Answer:
-13x +8y
Step-by-step explanation:
-5x+2y-8x+6y
rearranging;
-5x-8x+2y+6y
(-5x-8x)+(2y+6y)
(-13x)+(8y)
Answer:
-13X+8Y.
Step-by-step explanation:
Combine like terms, -5x-8x = -13x.
2y+6y = 8y. goodluck.
What is the product of 2.5 x 10^2 and 3.7 x 10^5 expressed in scientific notation?
The product of 2.5 x 10^2 and 3.7 x 10^5 expressed in scientific notation is 9.25 x 10^7.
What is scientific notation?It is the way of writing a large number between 1 to 10 with a power of 10.
We have,
To multiply two numbers in scientific notation, we multiply their coefficients and add their exponents. So, we have:
= (2.5 x 10²) x (3.7 x 10^5)
= (2.5 x 3.7) x 10^(2+5)
= 9.25 x 10^7
Therefore,
The product of 2.5 x 10^2 and 3.7 x 10^5 expressed in scientific notation is 9.25 x 10^7.
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phineas has more jolly ranchers than alan. if alan has 10 jolly ranchers how many do they have in total
Answer:
We cannot know.
Step-by-step explanation:
It only mentions that Phineas has more jolly ranchers than Alan. Since Alan has 10 jolly ranchers, the number of jolly ranchers Phineas could have is 11, 12, 13, 14... and so on. Phineas could have 1 billion jolly ranchers.
Well my question says Mona 28.086 seconds. Ashley 27.23 Seconds what's the difference of times second
Answer:
0.856 seconds
Step-by-step explanation:
just subtract mona's time from ashley's
What’s are the roots of the function?
Please help!
Answer:
-3, 2
Step-by-step explanation:
The roots of a function are also called the "zeros" or "x-intercepts." They are the values of x where the function value is zero.
__
Here, the graph crosses the x-axis at x=-3 and x=2. The roots of the function are -3 and 2.
help please help me
Answer:
45.4
Step-by-step explanation:
A=πr2=π·3.82≈45.3646
Part F About what is the average change in distance for each increase of 1 in the iron number ? What does this mean in terms of the situation?
Part D
What is the y-intercept of the correct graph? What is the y-intercept of the incorrect graph? Are the y-intercepts the same?
The average change in distance for each increase of 1 in the iron number is -10, and the y-intercept of the graphs are not the same
The average change in distance?From the graph, we have the following points:
(x,y) = (4, 145) and (3,155)
The average change in distance is calculated using:
[tex]m = \frac{y_2 - y_1}{x_2 -x_1}[/tex]
So, we have:
[tex]m = \frac{155 - 145}{3 - 4}[/tex]
Evaluate
m = -10
Hence, the average change in distance for each increase of 1 in the iron number is -10
What the average rate in (a) represents?The rate, -10 in (a) means that:
The distance decreases by 10 yards for each number of iron
The y-interceptThe y-intercept is the point where the graph crosses the y-axis
From the attached graphs, we have:
The correct graph has a y-intercept of 185The incorrect graph has a higher y-intercept (195)Hence, the y-intercept of the graphs are not the same
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1 quart = 4 cups
1 cup = 8 ounces
Solution: ____ glasses
Answer: 32 glasses
Step-by-step explanation: If 1 quart is 4 cups and 8 ounces are in 1 cup, 8x4=32 so there are 32 ounces in a quart. If he has 6 quarts 32x6+192 ounces. if each glass is 6 ounces 192/6=32.
A person's paycheck varies directly as the number of hours worked. Bill received $75 for 15 hours. How much would he receive for working 32 hours?
Answer:
$160
Step-by-step explanation:
75/15=5 which means he makes $5 per hour
5*32=160
Find the missing value.
(√24-√k)(√24+√k)=5
Answer:
K=19
Step-by-step explanation:
MY WRITTEN RESPONCE BELOW
What's the difference between mean and median ?
Can someone help me find x and explain what they did
Step-by-step explanation:
Example 7Join C to B to form BC, thereby creating ∆ ABC
OC is the radius of the circle (O is the center of the circle).
AD is the tangent to the circle at point C
When a radius of a circle meets with a tangent of the same circle, the angle between them is 90°
<ACB = <ACO = 90°
<ABC = 180 - (<ACB + <BAC)
= 180-(90+40)
= 50
Look closely,
<ABC = x = 50°
.
.
Example 8Do same as Example 7
Join O to B to form OB, which is the radius of the circle.
<ABO= 90°
< BOA = 50°
<OAB= x+25= 180-(90+50)
x+25= 40°
x = 15°
A line intersects the points
(12, -2) and (6, -8).
What is the slope of the line in
simplest form?
m = [?]
Answer:
1
Step-by-step explanation:
The formula for slope is y2 - y1 over x2 - x1.
-8--2 = -6
6-12= -6
-6/-6 = 1
An angle measures mc001-1. Jpg radians. What is the degree measure of the angle? 2. 44° 140° 280° 439. 6°.
Answer:
140°
Step-by-step explanation:
edge just did the assignment
HELPPP frenss!!! HURRY
Answer:
8
Step-by-step explanation:
When you calculate it -4/3 times is 4 so add 4 to that and you get 4. Hope this helps
4. The length of a rectangle is 18 centimeters and the width is 6 centimeters. A similar
rectangle has a width of 10 centimeters. What is the length of the missing side?
Answer:
30 cm
Step-by-step explanation:
So what we are given here is a case of similar figures.
When we are given similar figures, the ratio of the width of both figures should be similar to the ratio of the length of both figures.
I'll demonstrate it in the following problem.
We know one rectangle has a length of 18 cm and a width of 6cm.
The other rectangle has a width of 10 cm.
Let's take a ratio of the width of both rectangles.
We take the width of 6 cm for the first rectangle to the width of 10 cm for the second rectangle.
w1 = 6 cm
w2 = 10 cm
6 cm : 10 cm = 3 : 5
The ratio given is 3 : 5. Let's use these ratios to find lengths.
l1 = 18 cm
l2 = x cm
3 : 5 = 18 : x
To find x, we just solve this like an equation, where we let ratios be division signs.
3/5 = 18/x
Multiply both sides by 5x
3x = 90
Divide both sides by 3
x = 30 cm
The length of the missing side is 30 cm. We found the answer to the length by using the ratios obtained from the widths.
What is the excluded value?
a/
b-2
a=o
0b=2
Ob=-2
none of the above
Answer:
b = 2
Step-by-step explanation:
[tex]\frac{a}{b-2}[/tex]
the denominator cannot be zero as this would make the expression undefined. Equating the denominator to zero and solving gives the value that b cannot be
b - 2 = 0 ( add 2 to both sides )
b = 2 ← excluded value
Find the value of k for which the equation x2+k(2x+k-1)+2=0 has no real roots.
Please answer it properly. Thank you.
Answer:
Please find the answer attached :)
Find the equation of a straight line which is perpendicular to the line
which
passes through the point (3, -2).
Answer:
I don't see the equation for the line, but I describe the process.
Step-by-step explanation:
Let's look for a line that has the form y=mx+b, where m is the slope and b the y-intercept (the value of y when x=0).
The slope of a perpendicular line is the negative inverse of the slope of the reference line. In this case the equation for the reference line is missing. If it is in the form y=mx+b, take the m value, invert it, and then give it a "-" sign. For example, if the line is y = 2x +1, the negative inverse of the slope of 2 would be -(1/2).
The new line will have this new slope [-(1/m)] to make it y = -(1/m)x + b.
To find b, use the given point of (3,-2) in the equation and solve for b:
y = -(1/m)x + b
-2 = -(1/m)*(3) + b
Then solve for b and you'll have the equation for the solution to the problem.
I NEED HELP PLEASE!!!!!
What's the answer to the question below?
A penny weighs 2.5 grams while a dime weighs about 2.27 grams. How much do a penny and two dimes weigh?
Answer:
[tex]\huge\boxed{\sf 7.04\ grams}[/tex]
Step-by-step explanation:
A penny = 2.5 grams
A dime = 2.27 grams
2 dimes = 2.27 × 2 grams
= 4.45 grams
Weight of a penny and 2 times:
= 2.5 + 4.54
= 7.04 grams
[tex]\rule[225]{225}{2}[/tex]
Question 6
The partial sum 1+3+5+...+39 equals =
Answer:
400
Step-by-step explanation:
The 20 terms of the sum can be formed into 10 pairs, each with a sum of 40:
= (1 +39) +(3 +37) +(5 +35) + ... +(19 +21)
= 40 × 10 = 400
The indicated sum is 400.
A square tile has an area of
110 square centimeters. Which is the
best estimate of the length of one
side?
Answer:
Divide by 4
In this case one side would be 27.5
Step-by-step explanation:
A square has four sides so 110/4=27.5
Can someone please give me the (Answers) to this? ... please ...
I need help….
Step-by-step explanation:
Step 1: Answer question 1
[tex]6(4) = x(3)[/tex]
[tex]\frac{24}{3} = \frac{3x}{3}[/tex]
[tex]8 = x[/tex]
Answer: [tex]x=8[/tex]
Step 2: Answer question 2
The radius of a circle is equal to the halfway point of a circle and in this example it is 29.5 cm. To find the diameter of a circle we multiply the radius of the circle by 2.
[tex]29.5\ cm * 2[/tex]
[tex]59\ cm[/tex]
Answer: [tex]59\ cm[/tex]
Step 3: Answer question 3
The diameter of a circle is a line across a circle and in this example it is 22 cm. To find the radius of a circle we divide the diameter of the circle by 2.
[tex]\frac{22\ cm}{2}[/tex]
[tex]11\ cm[/tex]
Answer: [tex]11\ cm[/tex]
Answer:
1. x=8
2. a
3. d
Step-by-step explanation:
need help fast. dont know where to start
Solve for X and identify the angle relationship!!
PLSS I NEED THIS ASAP!
(WILL GIVE BRAINLIEST)
Answer: x = 10 and the angles are both corresponding angles
Step-by-step explanation: it is what it is
Corresponding angles are equal
4x+16=564x=56-164x=40x=40/4x=10Help and show work please!!
Answer:
Between 9 and 10
Step-by-step explanation:
I just multiplied 2/3 by 14
Does that help?
Answer:
C
Step-by-step explanation:
first do 14/1 times 2/3
it will be 28/3, then divide that
it should be 9.3 repeating
which is in the range of 9 and 10
What is the mean and median of the data
4.7,8.51,6.5,7.42,9.64,7.2,9.3
Answer:Median=7.42
Mean=7.61
Step-by-step explanation:
At a candy store you could get 3 giant lollipops for $4.89. How much would it cost to buy 10 lollipops?
Answer:
16.3
Step-by-step explanation:
they are each 1.63 hope this helps pls mark as brainiest
Answer: $16.30
Step-by-step explanation:
$4.89÷3= $1.63
$1.63×10= $16.30
Solve for t.
–17 = –9 + 4t
Answer:
[tex]\boxed{\sf{t=-2}}[/tex]Step-by-step explanation:
To solve for t, you have to isolate it on one side of the equation.
-17=-9+4tFirst, you have to switch sides.
→ -9+4t=-17
Add by 9 from both sides.
[tex]\Longrightarrow: \sf{-9+4t+9=-17+9}[/tex]
Then, you solve it.
-17+9=-8
4t=-8
Divide by 4 from both sides.
[tex]\sf{\dfrac{4t}{4}=\dfrac{-8}{4}}[/tex]
Solve.
Divide the numbers from left to right.
-8/4=-2
[tex]\Longrightarrow: \boxed{\sf{t=-2}}[/tex]
Therefore, the correct answer is t=-2.I hope this helps. Let me know if you have any questions.
Answer:
[tex]t = -2[/tex]
Step-by-step explanation:
Step 1: Add 9 to both sides
[tex]-17 = -9 + 4t[/tex]
[tex]-17 + 9 = 4t - 9 + 9[/tex]
[tex]-8 = 4t[/tex]
Step 2: Divide both sides by 4
[tex]\frac{-8}{4} = \frac{4t}{4}[/tex]
[tex]-2 = t[/tex]
Answer: [tex]t = -2[/tex]