Ayuda es mi examen y no me sale :cry:
a)4
b)3
c)7
d)1
Answer:Answer C) 7
Step-by-step explanation:
M= -14-20+32
-34 + 32
M=-2
N= 19-32+22
N = 19-10
N = 9
M + N = -2+9
M+N = 7
Answer c
Rewrite the following expressions without parentheses or negative exports
Answer:
Simplfied format with no parentheses or negative exponents: [tex]\frac{15y^5}{3x^{10}}[/tex]
Which image shows a plane slicing a double-napped cone to produce a hyperbola?
Answer is D
The second image in the diagram is a hyperbola. As can be seen, the plane cutting the cone can be at any angle but never equal to the slant angle of the cone. This has a very important implication. The plane cuts both cones of the double-napped cone. The third double-napped cone of Figure 3 shows two hyperbolas.
The plane sliced a third double-napped cone to produce a hyperbola
The second image in the diagram is a hyperbola.
As can be seen, the plane cutting the cone can be at any angle but never equal to the slant angle of the cone.
What is the slant angle?The slant angle of a pick is defined as the angle between the axis of the pick and the normal direction of the rock surface being cut by the pick.
This has a very important implication.
The plane cuts both cones of the double-napped cone.
The third double-napped cone in two hyperbolas.
Thus, The plane sliced a third double-napped cone to produce a hyperbola.
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The dot plot shows the number of library books borrowed by a group of children.
A dot plot whose number line is labeled Number of books borrowed. There is 1 dot above 0, 2 dots above 1, 4 dots above 2, 4 dots above 3, 6 dots above 4, 3 dots above 5, 5 dots above 6, 3 dots above 7, 1 dot above 8, and 1 dot above 9.
Select from the drop-down menus to correctly complete the statement.
The distribution of data is
approximately normal
skewed left
skewed right
, with a mode of
4
6
8
9
, and a range of
4
6
8
9
Answer:
Approximately normal
Mode: 4
Range:9
Step-by-step explanation:
The data is pretty evenly spread, the data isn’t pushed to the left or right giving the answer of approximately normal.
Mode: The number that occurs the most is the mode. This means that 4 would be the answer because it has the most dots.
Range: To find the range subtract the smallest number from the biggest number. In this case you would get 9-0 (this is because no data is recorded for 10) which equals 9.
I hope this helps! :)
.A basket that contains 12 apples costs
$3.75. What is the price for a basket that
contains 18 apples?
Answer:
$5.63
Step-by-step explanation:
We can form a ratio to solve this problem
12:3.75
18/12 = 1.5 times rate
1.5(12):1.5(3.75)
18:5.625, rounded to 5.63
Answer:
$5.63
Step-by-step explanation:
Divide the dollar over the apple.[tex]$3.75/12=0.3125[/tex] cent per apple. Now multiply it with 18 apples.
[tex]18 apples * 0.3125 cent = $5.625[/tex] rounding that up to cents so $5.63
Please hurry!
In the diagram, r || s.
Parallel lines r and s are crossed by transversal t to form 8 angles. Clockwise from top left, the angles formed with line r are blank, blank, 1, (2 x + 12.8) degrees; with line s are blank, blank, 117.6 degrees, blank.
What is the value of x?
x =
Answer: Angle 1 is 117.6⁰, the alternate angle to 1 is also 117.6⁰
X is 24.8
The Angle 2X + 12.8 = 62.4⁰, the alternate angle to it is also 62.4⁰
Step-by-step explanation: Angle (2X + 12.8 )forms 1180⁰ with Angle 1
180⁰- 117.6⁰ = 2X + 12.8
62.4⁰ = 2X + 12.8
Subtract 12.8 from both sides
49.6 = 2X
X is 24.8⁰
Answer:
X = 24.8
Step-by-step explanation:
Edge
Escribe una ecuación que represente la gráfica.
Solve this
[tex]4\left(5x-2\right)=2\left(9x+3\right)[/tex]
Answer:
Solution of equation ( x ) = 7Step-by-step explanation:
In this question we have given with an equation that is 4 ( 5x - 2 ) = 2 ( 9x + 3 ). And we are asked to solve this equation that means we have to find the value of x.
Solution : -
[tex] \quad \longrightarrow \: 4 ( 5x - 2 ) = 2 ( 9x + 3 )[/tex]
Step 1 : Removing parenthesis :
[tex] \quad \longrightarrow \:20x - 8 = 18x + 6[/tex]
Step 2 : Adding 8 from both sides :
[tex] \quad \longrightarrow \:20x - \cancel{ 8 }+ \cancel{8} = 18x + 6 + 8[/tex]
On further calculations we get :
[tex] \quad \longrightarrow \:20x = 18x + 14[/tex]
Step 3 : Subtracting 18 from both sides :
[tex] \quad \longrightarrow \:20x - 18x = \cancel{18x }+ 14 - \cancel{18}[/tex]
On further calculations we get :
[tex] \quad \longrightarrow \:2x = 14[/tex]
Step 4 : Dividing with 2 on both sides :
[tex] \quad \longrightarrow \: \frac{ \cancel{ 2}x}{ \cancel{2}} = \cancel{\frac{14}{2} }[/tex]
On further calculations we get :
[tex] \quad \longrightarrow \: \blue{\boxed{ \frak{x = 7}}}[/tex]
Therefore, solution of this equation is 7 or we can say that value of this equation is 7 .Verifying : -
We are verifying our answer by substituting value of x in given equation. So ,
4 ( 5x - 2 ) = 2 ( 9x + 3 )4 [ 5 ( 7 ) - 2 ] = 2 [ 9 ( 7 ) + 3 ]4 ( 35 - 2 ) = 2 ( 63 + 3 )4 ( 33 ) = 2 ( 66 )132 = 132L.H.S = R.H.SHence, Verified.Therefore, our value for x is correct .
#Keep LearningAnswer:
7[tex] \: [/tex]
Step-by-step explanation:
In the above question, we have to solve the equation and find the value of x. So,
[tex] \\ {\longrightarrow \pmb{\sf {\qquad 4(5x-2)=2(9x+3) }}} \\ \\ [/tex]
Using distributive property we get :
[tex] \\ {\longrightarrow \pmb{\sf {\qquad 20x-8=18x+6 }}} \\ \\ [/tex]
Adding (-18x) to both sides we get :
[tex]\\ {\longrightarrow \pmb{\sf {\qquad 20x-8 + ( - 18x)= \cancel{18x}+6 + \cancel{( - 18x) }}}} \\ \\ [/tex]
[tex] {\longrightarrow \pmb{\sf {\qquad 2x-8=6 }}} \\ \\ [/tex]
Now Adding 8 to both sides we get :
[tex]\\ {\longrightarrow \pmb{\sf {\qquad 2x-8 + 8=6 + 8 }}} \\ \\ [/tex]
[tex]{\longrightarrow \pmb{\sf {\qquad 2x=14 }}} \\ \\ [/tex]
Dividing both sides by 2 we get :
[tex] \\ {\longrightarrow \pmb{\sf {\qquad \frac{2x}{2} = \frac{14}{2} }}} \\ \\ [/tex]
[tex]{\longrightarrow \pmb{\frak {\qquad x=7 }}} \\ \\ [/tex]
Therefore,
The value of x is 7Determine if the given relation is function or not. Give its domain and
range.
2. {(4, 2), (4, 3), (-2, 4)}
Answer:
NoStep-by-step explanation:
According to the definition of the function each domain should have a uniqe range.
We have same domain of 4 with two different ranges 2 and 3.
It makes the relationship one-to-many, which can't be a function
Step-by-step explanation:
The rule is
A relation is said to be a function if every domain has an unique range
y=f(x)Here
f(4) has 2 values 2,3 hence it's not an function
Find the area of this triangle, round to the nearest tenth
Answer:
27.7 [tex]in^2[/tex]
Step-by-step explanation:
Find length of missing side:
11^2-6^2 = x^2
85=x^2
x = [tex]\sqrt{85}[/tex]
x = 9.22
9.22*6 / 2 = 27.66
Round to tenth:
27.7
Point Q is located on the coordinate grid at (− − 9.73, −3.32). In which quadrant is point Q
located?
Answer:
The third quadrant
Step-by-step explanation:
Point Q is located in the third quadrant because the values for both x and y are negative
3x+4 = 4(2x+9)
Please Help I CANT DO THIS!!!
Answer:
x=(14+sqrt(88))/6=(7+sqrt(22))/3=3.897 can i get brainliest?
16. Levi has two pieces of decorative tapes, one x cm long and the other x(x+1)
cm long. To decorate an album, she wants to cut them up to produce many
pieces of decorative tapes that are all of the same length, with no left overs.
a. Express in terms of x the greatest possible length, in cm, that she can cut
them into.
b. The difference in length between the two tapes is 4 cm. What is the value of
c. Hence, or otherwise, how many smaller decorative tapes can she produced in
all?
This is Aleks! please help me with this! I have been stuck on this one for weeks!!
Answer:
1/12 + 3/12 = 4/12 (or 1/3)
Step-by-step explanation:
we want to express
1/12 + 1/4 as 1/12 + something / 12
1/12 + 1/4 = 1/12 + something/12
we already have the 1/12 part, so we're left with
1/4 = something / 12
first, we can calculate (denominator we want) / (denominator we have) = 12/4 = 3
then, we want to multiply our current value (1/4) by our result of the multiplication divided by itself.
3/3 = 1
1/4 = 1/4 * 1 = 1/4 * 3/3 = 3/12
thus, our second value is 3/12
we then have 1/12 + 3/12
if we have the same denominators, we can simply add the numerators up
1/12 + 3/12 = (1+3)/12 = 4/12
What is the temperature, in degrees Fahrenheit, shown on the thermometer to the nearest integer? Enter your integer answer in the box.
Which value is equivalent to 1,250 - 352
a
7
250
b 35
352
40
Melissa has a student dictionary on her desk. Her dictionary contains 99 pages. In this dictionary, more words start with the letter "S" than any other letter, occupying 11 full pages.
If she opens up the dictionary at random, what is the probability that the page contains words starting with "S"?
Answer:
I believe it is 1/9 or 11.1%
Step-by-step explanation:
11/99 /(divided by) 11 = 1/9
1/9 converted to a decimal is 0.1 (it's repeating- I am not sure how to do that on brainly w/ the fancy - over it, so it's 0.111111111...)
so as a percent, it makes it 11.1% (repeating) or 11 [tex]\frac{1}{9}[/tex]% (which is a more exact solution)
now if you need a ratio, it would be 1:9
hope this helps :)
7. The perimeter of a right triangle is 60 cm and its hypotenuse is 25 cm. Find the area of the triangle.
Answer:
150 cm²
Step-by-step explanation:
Given
Perimeter = 60 cmHypotenuse = 25 cmSolving
We need to find the lengths of the altitudesSince 25 cm is already covered there is (60 - 25) = 35 cm remainingThe lengths can be taken as x and 35 - xNow, since it's a right triangle, we can solve for x using the Pythagorean TheoremApplying the theorem
x² + (35 - x)² = 25²x² + 1225 - 70x + x² = 6252x² - 70x + 600 = 0x² - 35x + 300 = 0x = 35 ± √1225 - 4(1)(300) / 2x = 35 ± √25 / 2x = 35 ± 5 / 2x = 40/2 = 20 or x = 30/2 = 15Upon solving the lengths of the altitudes are 15 and 20Area of the triangle
1/2 x product of the altitudes1/2 x 15 x 2010 x 15150 cm²Can someone please help me? And please explain your answer afterwards!
Answer:
The answer is (-3,-2)
Step-by-step explanation:
I cant do this right now.
I NEED HELP WITH THIS ASAP AND PLEASE
Margo used 78 square yards of fabric to make 52 dresses last year. She used the same amount of fabric to make each dress. How many square yards of fabric did Margo use to make each dress?
The amount of square yards of fabric that Margo used to make each dress is; 1.5 sq. yds
How to Solve Algebra word Problems?We are told that;
Last year, she used 78 yd² to make 52 dresses
We are told that she used the same amount of square yards for each dress.
Thus, to find the square yards of fabric that Margo used to make each dress, we just divide 52 by 78.
Square yards used for each fabric = 78/52 = 1.5 sq. yds
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Which statements about the figure must be true? select three options. angledbc is bisected by ray bd. angleabc is bisected by ray bd. bc = one-halfac line segment d b is-congruent-to line segment b c 2mangledbc = mangleabc
We can see that the statements that about the figure that must be true in the following:
∠ABC is bisected by ray BD.BC = One-half of AC2 ∠DBC = ∠ABC.What is angle?An angle actually refers to the figure that is formed when two rays share a common endpoint that is called vertex. Also, when two planes intersect, they also form angles.
Thus, we can see that the above options are the three options that makes the figure true.
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Write 7/16+3/16 in simplest form.
Answer:
Step-by-step explanation:
Remark
Normally you would have to make sure that the bottoms of each fraction to be added would be the same. In this question, they are, so nothing further to getting the bottoms the same has to be done,
Solution
answer = 7 / 16 + 3 / 16
answer = (7 + 3) / 16
answer = 10/16
Both top and bottom are even numbers so you can divide both top and bottom by at least 2.
10/2 = 5
16 / 2 = 8
So answer = 5/8
order the steps to solve -3x + 2.4 =19.2
Answer: -5.6
Step-by-step explanation: Subtract 2.4 from both sides
Divide both sides by -3
In
the number 22, how many times larger is the
value of the digit in the tens place than the value of
the digit in the ones place?
Answer: 10 times larger
Step-by-step explanation:
Electric utility poles in the form of right cylinders are made out of wood that costs $25.46 per cubic foot. Calculate the cost of a utility pole with a diameter of 1.5 ft and a height of 30 ft. Round your answer to the nearest cent.
Answer:
$1349.75
Step-by-step explanation:
Use the equation for volume of a cylinder - pi * radius^2 * height
Halve the diameter to find the radius - 1.5 / 2 = 0.75 ft
Find the volume of the cylinder - pi * 0.75^2 * 30 = 53.0143760293 cubic feet or ft^3
Multiply volume by cost per cubic foot - 53.014... * 25.46 = 1349.746013706
Round to nearest cent = $1349.75
:)
The data in the table represents the training times (in seconds) for Arnold and Jackson.
Arnold 102 86 87 99 92 100 94 89 84 97
Jackson 103 100 83 87 88 85 91 93 96 101
Question 1
Which person's training times had the greatest spread? Explain.
Select from the drop down menus to correctly complete each statement.
The range of Arnold's training times is
Choose...
. The range of Jackson's training times is
Choose...
. Thus,
Choose...
.
Question 2
The middle 50% of the training times of which person had the least spread? Explain.
The interquartile range of Arnold's training times is
Choose...
. The interquartile range of Jackson's training times is
Choose...
. Thus, the middle 50% of
Choose...
training times have the least spread.
Question 3
What do the range and interquartile range tell you about Arnold and Jackson's training times?
Select each correct answer.
Arnold's training times are more consistent than Jackson's.
Arnold and Jackson's training times have the same spread.
Jackson's training times are just as consistent as Arnold's.
Jackson's training times have the most spread.
Range for Arnold: 18; IQR: 12
Range for Jackson: 20; IQR: 13
Jackson's had the greatest spread.
Arnold's middle 50% had the least spread
What is the Range and Interquartile Range of a Data Set?Range = Maximum value - minimum value
Interquartile range (IQR) = Q3 - Q1
Range and IQR are both measures of variability. The larger the value, the more spread the data values in a data set are.
Range for Arnold's training times = 102 - 84 = 18
Range for Jackson's training times = 103 - 83 = 20
Therefore, Jackson's training times had the greatest spread.
Interquartile range for Arnold's training times = Q3 - Q1 = 99 - 87 = 12
Interquartile range for Jackson's training times = Q3 - Q1 = 100 - 87 = 13
Thus, Arnold's middle 50% of his training times had the least spread.
The range and interquartile range tells us that, Arnold's training times are more consistent than Jackson's.
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Timmy drank 2 quarts of water yesterday. He drank twice as much water today as he drank yesterday.
How many cups of water did Timmy drink in the two days
Answer:
24 cups or 6 quarts
Step-by-step explanation:
2 x 2 = 4 4 + 2 = 6
6 x 4 = 24
A triangle has an area of 600 square feet. The height of the triangle is 20 feet. The base of the triangle is
Answer: 60
Step-by-step explanation:
Area = ½base × height
600 = ½b × 20
600/20 = ½b
Base = 30 × 2
I will give Brainliest!
A collection of paired data consists of the number of years that students have studied Spanish and their scores on a Spanish language proficiency test. A computer program was used to obtain the least squares linear regression line and the computer output is shown below. Along with the paired sample data, the program was also given an x value of 2 (years of study) to be used for predicting test score.
Equation: y = mx + b
Statistics:
r2 = 0.83
r = 0.91
Parameters:
m = 10.90
b = 31.55
Answer the following questions based on the information given above.
If a person studies 4.5 years, what is the single value that is the best predicted test score? Assume that there is a significant linear correlation between years of study and test score.
83.0
80.6
49.1
53.35
Answer:
2.9 years
Step-by-step explanation:
80.6
I know that’s right because I took the test.