Mathematics High School

Given y varies directly as x, find the constant of variation k.

Answers

Answer 1

Answer:

y=k×x

so k =-1/2

ie: -1=-1/2(2)

-1=-1

hope this helps hshshsjjss

Related Questions

The volume of a triangular pyramid is 13.5 cubic meters. What is the volume of a triangular prism with a congruent base and the same height?

Answers

Answer:

The prism is 3 by 3 by 1.5.

Step-by-step explanation:

The prism has a length x and a width x. Since it is a square at the base both length and width are the same amount x. The height is "half the length of one edge of the base". Since the base is x, this makes it 1/2x.

The volume's prism is found using V = l*w*h. Substitute and simplify.

13.5 = x*x*1/2x

13.5 = 1/2 x^3

27 = x^3

3 = x

The prism is 3 by 3 by 1.5.

brainliest?

What is the value, to the nearest tenth, of 15 x 3 - 12 x 2 when x = 2.5

Answers

Answer:

159.4

Step-by-step explanation:

I'm assuming that it's supposed to be 15x^3-12x^2 because when you copy and paste the "^" gets cut out

15*2.5^3 - 12*2.5^2 = 234.375 - 75 = 159.375

rounded is 159.4

What does 1/3 represent for the picture below?

Answers

Answer:

c the ratio of the measure of arc QR and the circle

Step-by-step explanation:

i just took the quiz

hope this helps (:

The measures of the angles of a triangle are shown in the figure below. Solve for x.

Answers

Answer: x = 10

Step-by-step explanation:

The sum of interior angles in a triangle is equal to 180°.

(2x + 3) + (5x + 17) + 90 = 180

2x + 3 + 5x + 17 + 90 = 180

7x + 110 = 180

7x = 70

x = 10

The circumference of a circle is 106.76 yards. What is the circle's radius?

Answers

Answer:

The answer is 16.99

Answer:

It's 17!

Step-by-step explanation:

(12) Which equation has irrational solutions?
Group of answer choices

Answers

Answer:

9(x+3)²=27

Step-by-step explanation:

hello :

9(x+3)²=27 means : (x+3)²=27/9

(x+3)²=3 because 3 is not the perfect square

Which of the following sets of angle measures can be used to draw an acute isosceles triangle? Select all that apply. 75°, 30°, 75° 80°, 55°, 45° 80°, 80°, 40° 60°, 60°, 60° 50°, 50°, 80° 20°, 140°, 20°

Answers

Answer:

1. 80°, 80°, 40°

2. 60°, 60°, 60°

3. 20°, 140°, 20°

4. 50°, 50°, 80°

5. 75°, 30°, 75°

6. 80°, 55°, 45°

6, 2, and 4

Answer:

I think its 6,2, and 4

Step-by-step explanation: hope that helps! °∪°

In comparison to where would be
located on a number line?
A.closer to 0
B.the same point
C.closer to 1
D.at 0

Answers

B, the same point. 1/3 is equivalent to 2/6.

Jessica's cat weighs 7lb. The neighbors cat weighs 1/5 more than Jessica's cat. How much does the neighbor's cat weigh?

Answers

Answer:

8.4 lbs

Step-by-step explanation:

the cat is 7lbs and the neighbors is 1/5 more. to find 1/5 of 7 you would do 7/5 which equals 1.4

you then add 7+1.4=8.4 lbs

i'm pretty sure that's it!!

What does the C equal to in -1/6 +7/6 = c

Answers

Answer:

c = 1

Step-by-step explanation:

we have -1/6 + 7/6

since 6 is a common denominator we can do

[tex]\frac{-1}{6} +\frac{7}{6} = c\\\frac{-1+7}{6} = c\\\frac{6}{6} = c\\1 = c\\c = 1[/tex]

Which ordered pair would not be a solution to y = x3 – X ?
(-4,-60)
(-3,-24)
(-2,-6)
(-1,-2)

Answers

Answer:

Step-by-step explanation:

Tony borrows $7,000 from a friend
at a rate of 5% interest for 4 months.
What is the total that needs
to be repaid after this time
to the nearest dollar?

Answers

Answer:

5%100 ×R200

Step-by-step explanation:

Address and u the one for me please

hejekekkske
sksksksk
sneak

How would I put this?

Answers

Answer:

10.35

Step-by-step explanation:

63,756 x 60 = 3825360

70 x 5,280 = 369600

3825360 ÷ 369600 = 10.35

10.35 because 63756 times 60= 3825360 and 5280 times 70= 369600 and 3825360 divided by 369600= 10.35

HELPPPPP
Directions: Find the slope of the lines graphed below.
1.
2.
3.
4.
5.
6.
Directions: Find the slope between the given two points.
7.(-1,-11) and (-6, -7)
8. (-7.-13) and (1, -5)
9. (8.3) and (-5,3)
10. (15, 7) and (3,-2)
11. (-5, -1) and (-5, -10)
12. (-12, 16) and (-4,-2)
Directions: Use slope to determine if lines PQ and RS are parallel, perpendicular, or neither.
13.P(-9,-4), (-7, -1), R(-2,5), S(-6, -1)
m(PO)
m(RS)
Types of Lines
PLEASE HELLPPPP

Answers

Answer:

7. -4/5

8. 1

9. 0

10. 3/4

11. undefined/nonlinear

12. -9/4

13. parallel

Are the ratios 1:2 and 4:7 equivalent?

Answers

Answer:

Step-by-step explanation:

By multiplying each ratio by the second number of the other ratio, you can determine if they are equivalent.

A cube. Point B is the top right point of the top face. Point A is the bottom left point of the bottom face and point C is the top right point of the bottom face. Diagonals are drawn from B to A and from A to C. Side B C is 10 inches long, and Side A B is StartRoot 300 EndRoot inches long. What is the length of Side A C? 14 in. StartRoot 200 EndRoot in. StartRoot 290 EndRoot in. 20 in.

Answers

Answer:

the answer is b

Step-by-step explanation:

i just did the assignment

Answer:

Step-by-step explanation:

Please help I do not know the answer

Answers

Answer:

answer is y = 3/4x - 5

Step-by-step explanation:

picture below.

The 3/4 comes from the line. You would use rise over run to find the slope, which in this case is 3/4. and the -5 is basically the y-intercept

"Marty purchased a car. The car cost him $16,500 and it depreciates in value at a rate of 4.3% per year. How much will the car be worth in 12 years?"

Answers

Answer:

"Marty purchased a car. The car cost him $16,500 and it depreciates in value at a rate of 4.3% per year. How much will the car be worth in 12 years?"

Step-by-step explanation:

HELP ASAP PLEASE ILL MARK BRAINLIEST AND RATE 5 STARS PLEASEEE
A survey about the student government program at a school finds the following results:
190 students like the program
135 students think the program is unnecessary
220 students plan on running for student government next year.

If a circle graph were made from this data, what would the measure of the central angle be for the group that likes the program? Round your answer to the nearest whole number. Make Sure To Show Your Steps

Answers

Answer: 126 degrees

there are 360 degrees in a circle.

67 is 42% of what number?

Answers

Answer:

28.14

Step-by-step explanation:

28.14 just took the test

If you roll a six sided die, what is the probability that you do not roll a one or two?

Answers

Answer:

66.6%

Step-by-step explanation:

You have a 1/6 chance to roll any number. That is a 16.6% chance per number.

So, that means you have a 4/6 (2/3 simplified) probability of not rolling a one or two. That is a 66.6% chance.

[NOTE: The '6' at the end of '16.6%' and '66.6%' is a repeating decimal]

What is the value of x?
r \ 130°

Answers

Answer:

Step-by-step explanation:

Answer:

I don't see an "x" or an equation-

hi amazing people please help i’ll give brainliest thanks!

Answers

Answer:

to present another's viewpoint

Answer:-

D, to analyze specific data i guess

determine the mode of the set of data in the stem and leaf plot below

Answers

Answer:

Step-by-step explanation:

mode is the value which appears the most than other values. In this case 51 will appear 3 times.

Answer:

5.1

Step-by-step explanation:

dont forget the decimal

Find the missing side lengths.

Need help please.

This is the 6th time I post.

Answers

Answer:

x = 9.238 y = 4.619

Step-by-step explanation:

I kind of forgot how to do sohcahtoa but we do cosine for one of them. I used a calculator but the lengths seems reasonable so I'm sure they should be right.

number 5 please help me

Answers

Answer:

I think C or D

Step-by-step explanation:

if given a radius of 6mm, what is the diameter?

if given a diameter of 22ft, what is the radius?

Answers

Answer:

If the radius is 6mm, the diameter is 12mm.

If the diameter is 22 ft, the radius is 11 ft.

Step-by-step explanation:

1st one) When you try to find the diameter of any circle, and you already have the radius, you need to multiply it by two (double it)

6 x 2 = 12mm

2nd one) Then to do the opposite, you need to divide the diameter by 2.

22/2 = 11 ft

Hope this helped :)

Can someone help me with this question. Will Mark brainliest.

Answers

Answer:

Step-by-step explanation:

Which expression is equivalent to 3t - 5 + 8t + 3 ?

Answers

Answer:

11t -2

Step-by-step explanation:

3t - 5 + 8t + 3

Combine like terms

3t +8t- 5 + 3

11t -2

Start by changing the problem to 3t + -5 + 8t + 3.

Now combine like terms.

Combine like terms → your numbers

and your "t" terms.

So 3t + 8t is 11t and -5 + 3 is -2.

So the answer is 11t - 2.

Find the value of each variable. If your answer is not an integer, write it in simplest radical form with the denominator rationalized

Answers

Answer:

I would need to see the variables to answer this questions.

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