please help me with this

Answer:

Equation: y = 2(x^2)

Y-value = 32

X-value = 10

Step-by-step explanation:

y = k(x^2)

k symbolises proportionality.

solve for k:

50 = k(5^2)

50 = 25k

k =2

So...

equation is y = 2(x^2)

Value of y when x = 4,

y = 2 x 4^2

y = 2 x16

y = 32

Value of x when y = 200,

200 = 2(x^2)

100 = x^2

x = 10

Answer:

easy what's 5% of 3000 that's just for one year then multiple it by 4

Answer:

D

Step-by-step explanation:

Answer:

G

Step-by-step explanation:

G. Plug in x=5 to    x-2<7

which becomes

5-2<7

3<7

which is correct.

Hope This Helps!

Answer:

30 Step-by-step explanation:

Answer:

Its 60

Step-by-step explanation:

I took the test

Answer:

28

[tex]\frac{7}{2} \\\\\frac{x}{8}[/tex]

[tex]2 * x = 8\\x = 4[/tex]

[tex]7 * 4 = x\\x = 28[/tex]

PLZZ GIVE BRAINLIEST

Answer:

D

Step-by-step explanation:

9514 1404 393

Answer:

  (3, 2)

Step-by-step explanation:

Reflection across y=x swaps the coordinates:

  (x, y) ⇒ (y, x)

Dilation by a factor of 1/2 multiplies each coordinate by 1/2.

  (x, y) ⇒ (x/2, y/2)

The combination of these transformations gives you ...

  (x, y) ⇒ (y/2, x/2)

  (4, 6) ⇒ (3, 2)

Answer:

50+5=55

mean=55÷30

=1.83

For a population with u = 50 and σ = 5; if a sample size of 30 is selected, the sample mean is 50 while the sample standard deviation is 0.91

The z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:

z = (raw score - mean)/standard deviation

For  a population with u = 50 and σ = 5; if a sample size of 30 is selected:

Sample mean = 50

Sample standard deviation = 5/√30 = 0.91

For a population with u = 50 and σ = 5; if a sample size of 30 is selected, the sample mean is 50 while the sample standard deviation is 0.91

Find out more on z score at: https://brainly.com/question/25638875

Answer:

B

Step-by-step explanation:

Order the data from least to greatest and find the one in the middle.

For john it is 80 and for sally it is 70.

Answer:

x = 4

Step-by-step explanation:

i am smart

Answer:

X=4

Step-by-step explanation:

Simplifying

8x + 7 = 6x + 15

Reorder the terms:

7 + 8x = 6x + 15

Reorder the terms:

7 + 8x = 15 + 6x

Solving

7 + 8x = 15 + 6x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-6x' to each side of the equation.

7 + 8x + -6x = 15 + 6x + -6x

Combine like terms: 8x + -6x = 2x

7 + 2x = 15 + 6x + -6x

Combine like terms: 6x + -6x = 0

7 + 2x = 15 + 0

7 + 2x = 15

Add '-7' to each side of the equation.

7 + -7 + 2x = 15 + -7

Combine like terms: 7 + -7 = 0

0 + 2x = 15 + -7

2x = 15 + -7

Combine like terms: 15 + -7 = 8

2x = 8

Divide each side by '2'.

x = 4

Simplifying.                Hope this helps :D

x = 4.                              Plz brainly and like

Answer:

1: $11

2: $43.19

3: $128.57

Step-by-step explanation:

10 • 1.10 = 11

39.99 • 1.08 = 43.19

43.19 • 3 = 128.57

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

Easy way: use a graphing calculator.

__

Manually: plot the y-intercept and another point.

The given equation is in slope-intercept form:

  y = mx + b . . . . . . . slope m, y-intercept b

For this line, the slope is 2/3, and the y-intercept is 1.

This means the line crosses the y-axis at y=1. You can plot that point on your graph.

The slope of 2/3 means the line will rise 2 units for each 3 units to the right. 3 units right of the y-axis is x=3. 2 units up from y=1 is y=3. So, another point on the line is (x, y) = (3, 3). Plot that point and draw a line through the points you have identified.

Answer:

90 cm3

Step-by-step explanation:

You multiply 2 by 5 which is 10, then by 9 and get 90 cm3

Answer:

40 degrees

Step-by-step explanation:

2x-30+x=90

Then you add x to 2x which will be 3x so now its

3x-30=90

add 30 to both sides

3x=120

divide 3 from both sides

x=40

Since Angle QPR is virticle to 2x-30+x=90

Angle QPR is 40 degrees

I got you bro go to sleep g

Answer:

using 3.14 for pi the volume is 502.4

Step-by-step explanation:

Answer:

249.60

Step-by-step explanation:

300 x .8 (100%-20%)=240

240 x .04 (4% sales tax)=9.60

price = 240+9.60=249.60

Answer:

The median is 21,5

The mean is 22,4

the outlier is 38

Answer:

Step-by-step explanation:

1.

The area of the base

= (7×6)÷2

= 21 m²

The volume of the prism

= 21×16

= 336 m³

2.

The area of the base

= (6×5.2)÷2

= 15.6 m²

The volume of the prism

= 15.6×9

= 140.4 m³

3.

The area of the base

= (5.7×7.6)÷2

= 21.66 m²

The volume of rhw prism

= 21.66×4.8

= 103.968 m³

= 104.0 m³ (rounded to the nearest tenth)

Answer:

Question?

Step-by-step explanation:

?

Answer:

y + 3 = [tex]\frac{2}{3}[/tex] ( x - 9 )

Step-by-step explanation:

( [tex]x_{1}[/tex] , [tex]y_{1}[/tex] )

y - [tex]y_{1}[/tex] = [tex]\frac{2}{3}[/tex] ( x - [tex]x_{1}[/tex] )

y = mx + b

~~~~~~~~~~

( 9 , - 3 )

y - ( - 3 ) = [tex]\frac{2}{3}[/tex] ( x - 9 )

y + 3 = [tex]\frac{2}{3}[/tex] ( x - 9 )

Answer:

1375 square inches

Step-by-step explanation:

Area= Length × Width

15in×75in=1125in

25in×10in=250in

250in + 1125in= 1375square inches

Answer:

D. 6 bags

Step-by-step explanation:

Answer:

The answer is 4 bags

Answer:

The formula for the nth term of this sequence is: 31 + (n-1)X6

Step-by-step explanation:

This is an arithmetic sequence (ie. each term is the last term with a fixed value added to it).

T1 =31

T2 = 37 = T1 + 6 = 31 + 6

T3 = 43 = T2 + 6 = 31 + 6 + 6 = 31 + 6X2

…

In general, the nth term is 31 + 6(n-1)

Answer:

It's Cos again.

Thumbs-up

Answer:

%25 decreased

Step-by-step explanation:

Answer:

25%

Step-by-step explanation:

The way I did it was by subtracting 45 from 60

60-45 = 15

After that, we divide 15 by 60

15/60 = 0.25

And to turn that into a percentage, multiply by 100.

0.25*100=25%

Checking the answer

And you can check by multiplying 25% to 60 and getting $15. So the discount is 25% or $15 dollars off. And just subtract 15 from 60 and you get 45, that is how you check your answer.