Which equation shows that y varies directly with x?
y = 0.8x
y = 0.8x/x
y = 0.8x - 5
y = x/8 + 5

Answers

Answer 1
y=0.8x
ummm i think so. yea because y is only going to x ig

Related Questions

Someone please help me quick! Pleaseee

Answers

Answer:

B

Step-by-step explanation:

Reflect x-axis means (x,y) becomes (x, -y)

Shrink by 1/3 means f(x) = x becomes f(x) = 1/3x

Up 4 units means f(x) = x becomes f(x)= x + 4

So lets put that together

[tex]f(x) = \sqrt{x}[/tex]

[tex]f(x) = -\sqrt{x}[/tex]

[tex]f(x) = -\frac{1}{3} \sqrt{x}[/tex]

[tex]f(x) = -\frac{1}{3} \sqrt{x} + 4[/tex]

Given the functions f(x) = x ^ 3, g(x) = 9 and h(x) = 2x , what is an expression equivalant to f(2x) + 3g(x)/h(x) + 3?

Answers

Answer:

an expression equivalent to f(2x) + [tex]3\frac{g(x)}{h(x)}[/tex] + 3 = 8x³ + [tex]\frac{27}{2}x[/tex] + 3

Step-by-step explanation:

As given ,

f(x) = x³ , g(x) = 9 , h(x) = 2x

Now,

f(2x) = (2x)³ = 2³.x³ = 8x³

⇒f(2x) = 8x³

Now,

[tex]\frac{g(x)}{h(x)} = \frac{9}{2x} = \frac{9}{2}x[/tex]

⇒[tex]3\frac{g(x)}{h(x)} = 3.\frac{9}{2}x = \frac{27}{2}x[/tex]

∴ we get

f(2x) + [tex]3\frac{g(x)}{h(x)}[/tex] + 3 = 8x³ + [tex]\frac{27}{2}x[/tex] + 3

4. Look at the model. Write three equivalent fractions for the shaded part.
(3 pts)

Answers

Answer:

1/2,5/10,4/8

Step-by-step explanation:

half of the box is shaded.

this means that 1/2 is shaded.

also, there are 5/10 boxes shaded.

we can make up another one: 4/8

all of these can be reduced to 1/2.

Help me with this question please fastttt

Answers

you can’t see with all the rainbows, pls repost

3y+9=x^2+6x isolate y

Answers

Answer: Answer is below mate!

Step-by-step explanation: Have a brilliant day-Lily ^_^

Yup the person on top of me is right!!!!

if u help me ur a very nice person :DDD

Answers

Answer:

D. -31 is less than -23

Step-by-step explanation:

Danny has a rectangular rose garden that measures 8m by 12.5m. One bag of fertilizer can cover 16m2. How many bags will he need to cover the entire garden?

Answers

Answer:

do your work and ask a teacher or parent for help to solve it and stop asking random strangers for the answer and learn how to do it. <3

Step-by-step explanation:

How do you solve for x ?​
please dont respond just for points

Answers

Answer:

X is 110cm

Step-by-step explanation:

35degrees plus 90degrees equals 125degrees

So 125-15=110cm

Brian has saved five dollars in dimes quarters and half dollars she finds that she has 30 coins all together and there are four times as many quarters as there are half dollars how many dimes does Brian have

Answers

9514 1404 393

Answer:

20 dimes8 quarters2 half-dollars

Step-by-step explanation:

Let d, q, h represent the numbers of dimes, quarters, and halves Brian has. We can write 3 equations in these 3 variables:

  10d +25q +50h = 500 . . . . value of the coins, in cents

  d + q + h = 30 . . . . . . . . . . . total number of coins

  4h = q . . . . . . . . . . . . . . . . . four times as many quarters as halves

Using the last equation to substitute into the other two, we get ...

  10d + 150h = 500

  d +5h = 30

The second equation can be written as ...

  5h = 30 -d

and the first can be written to facilitate substitution:

  10d +30(5h) = 500

  10d +30(30-d) = 500 . . . . . substitute for 5h

  900 -20d = 500 . . . . . . . . . simplify

  400 = 20d . . . . . . . . . . . . . add 20d-500 to both sides

  d = 20 . . . . . . . . . . . . . . . . divide by 20

Brian has 20 dimes.

helppppppppppppppppppppppppppppppp
The volume of a cylinder is 72 71 cm. If the radius is 3 cm, what is the height of the cylinder?
0
3 cm
0
0
0
O A. 4 cm OB. 8 cm O C. 12 cm O D. 24 cm
0
0

Answers

Answer: 8 cm

Step-by-step explanation: 3^2 = 9 So, 72/9 = 8

Two planes A and B start from the same place and move in different directions making an angle of 50° between them the speed of plane A is 200 mph and the speed of plane B is 300 mph the two planes are blank miles apart after one hour?

Answers

Answer:

The distance between them is 230.65 miles

Step-by-step explanation:

Here we use the Cosine formula

[tex]a^2 = b^2 + c^2 - 2bc\ cos\ A\\\\a^2 = 200^2 + 300^2 - 2\times 200\times 300cos50^{\circ}\\\\= 40,000 + 90,000 - 120,000cos50^{\circ}\\\\= 130,000 - 120,000 \times 0.64\\\\= 130,000 - 76,800\\\\a^2= 53,200\\\\a = \sqrt{53,200} \\\\= 230.65\ miles\ per\ hour[/tex]

Now the distance for one hour is

= 230.65 ÷ 1

= 230.65 miles

Please help it’s so difficult

Answers

Answer:

y = x/2 +4

Step-by-step explanation:

new slope = -1/-2 = 1/2

x1 = -4, y1= 2

y-y1 = m(x-x1)

y - 2 = 1/2 {x- (-4)}

y-2 = 1/2 (x+4)

y-2 = x/2 + 2

y = x/2 +2+2

y = x/2 +4

Please help will give Brain

Answers

It may be 90 the value of x because there is a slant.

asap... plz can you do these for me​

Answers

Given:

The graph of a quadratic function [tex]y=x^2-4x+3[/tex].

To find:

(a) The coordinates of the turning point.

(b) The roots of the equation [tex]y=x^2-4x+3[/tex]

Solution:

(a)

From the given graph it is clear that first the graph is decreasing after that it is increasing. So, the minimum point is the turning point.

The turning is at (2,-1) because the distance between the turning point from the y-axis is 2 and from the x-axis is 1 in the downward direction.

Therefore, the coordinates of the turning point are (2,-1).

(b)

The x-intercepts are the roots of an equation because roots are the x-coordinates of the points where the graph intersect the x-axis.

From the given graph it is clear the graph intersect the x-axis at x=1 and x=3.

Therefore, the roots of the given equation are 1 and 3.

what is the solution set of this inequality x < -10 i need help

Answers

Answer:

x= 1 (any number greater than -10)

Step-by-step explanation:

">" this sign shows that any number greater than -10 can be x. There is no specific answer.

Answer:

The solution set of an inequality is < (less than) or > (greater than) to compare two or more numbers. Example 12 > - 10.

Step-by-step explanation:

When comparing two numbers, like 5 and 8, you probably recognize that the number 5 is less than the number 8. You probably also realize that the number 8 is greater than the number 5. In math, we use the inequality symbols < and > to compare two or more numbers.

When 27 times x squared times z all over negative 3 times x squared times z to the fourth power is completely simplified, the exponent on the variable z is _____.
Numerical Answers Expected!
I have attached a picture of the problem so it's easier to read.

Answers

Step-by-step explanation: Isolate z by itself:

To simplify variables with powers, subtract the smaller power from the bigger power:

The exponent will be -3

PLEASE HELP ASAP


The table shows values for functions f(x) and GX(x) what is the solution to f(x) = g(x)

Answers

Wouldn’t it be 0, as that’s when their values are both equal to each other, making the equation true?

Which set of measurements could be the side lengths of a right triangle?
A. {3 in., 5 in., 7 in.}
B. {6 in., 9 in., 12 in.}
C. {8 in., 15 in., 17 in.}
D. {10 in., 20 in., 30 in.}

Answers

Answer:

D

Step-by-step explanation:

you simply add the 2 smaller sides, and if their sum equals the bigger side, its correct!

Select the correct answer.
There were 800 farmers' markets initially in the USA in 2012. In 2013, the number of farmers' markets was 1.25 times the initial number of farmers' markets. Then, in 2014, the number of farmers' markets was 1.25 times the number of farmers' markets the previous year. If this pattern continues, which of the following graphs represents the number of farmers' markets in the USA over time?

Answers

Answer:

Graph Z or D

Step-by-step explanation:

Starts at 800 and goes up to around 4 and ends

Answer:

its Z

Step-by-step explanation:

HELP WILL GIVE BRAINLIEST Triangle QRS and triangle WXY are similar. Which statement must be true?

Answers

Answer:

C.

Step-by-step explanation:

This is correct because the triangles are similar. Angle S is similar to Angle Y, and Angle R is similar to Angle X.

None of the others can be correct either.

Hope it helps!

24% students in a clan were absent in a day .If 38 students were present ,what is the total strength in the clan

Answers

Answer:

50 students

Step-by-step explanation:

24% students in a clan were absent in a day .

Hence, the Percentage of students present is calculated as:.

= 100 % - 24 %

= 76%

From the question, we know that:

If 38 students were present ,what is the total strength in the clan

The total strength of the clan = Total number of students. This is calculated as:

76% × x = 38 students.

76/100 × x = 38

76x /100 = 38

Cross Multiply

76x = 38 × 100

x = 3800/76

x = 50 students

PLEASE HELP!!!
Write a simplified equation to solve for X.

Using the equation, solve for x

Answers

Answer:

x = 40

Step-by-step explanation:

x + 100 +  x = 180 {Straight line angles}

2x   + 100 = 180      {subtract 100 from both sides}

         2x = 180 - 100

         2x = 80      {Divide both sides by 2)

           x = 80/2

          x = 40

Answer:

x=40

Step-by-step explanation:

2x+100=180

2x=180-100

2x=80

x=40

Which sequence of transformations could be used to map triangle MNO onto M”N”O”?

O T(-2,4) ° ry-axis
O ry-axis •T(-2, 4)
O T(2,-4) • R0,180 degrees
O R0.180 degrees T(2,-4)

Answers

Answer:

Option D

Step-by-step explanation:

I dont really know but i think its D

Answer:

a

Step-by-step explanation:

16 cm 44.2 cm in percent
PLSS HELP!!

Answers

176.25% increase. Give brainlist

Pls help tell me how to do it

Answers

(13 * 17) /2 = 110.5


Explanation: b * h / 2

i need help with these assignments anybody willing to help? ! must include ratio tables! and i only need to do question 4

Answers

Answer:

4.a

Step-by-step explanation:

hope it helps

write the recurring decimals as fractions 0.15 and 0.369​

Answers

Answer:

0.15 = 3/20. 0.369= 369/1000.

WILL GIVE BRAINLIEST, PLEASE HURRY.

In science class, students added vinegar to a solution to try to reach an acidic pH. Eduardo added 1/3 of a cup vinegar to his solution. Violent added 3.75 times the amount Eduardo used. How much vinegar did Violet add to her solution?

A. 3 3/4 cup
B. 1 1/4 cup
C. 1 cup
D. 1/3 cup

Answers

Answer:

B. 1 1/4 cup

Step-by-step explanation:

1/3 times 3 3/4 gives you 1 1/4! Hope that helps!

Answer:

Step-by-step explanation:

11/4

ez as pie

Liam is setting up folding chairs for a meeting. If he arranges the chairs in 8 rows of the same length, he
has 7 chairs left over. If he arranges the chairs in 6 rows of that same length, he has 23 left over. How many
chairs does Liam have?

Answers

Answer:

liam has 44 chairs with him

Answer:

liam has 71 chairs

hope it helps you

whats the line in fully simplified slope form pls help me.

Answers

Answer:

y =  -5/6x - 7

Step-by-step explanation:

The answer is y=-5/6x-7
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