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3 years ago

what is the unit rate of area in square feet of enlarged image per square foot of area of the original

Mathematics

1 answer:

lord [1]3 years ago

3 0

Answer:

Step-by-step explanation:

1/2(2/3)

3/6(4/6)

3(4)

12/6=2

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Look at the data in the table.

Amiraneli [1.4K]

Okay then what, what do you want help with

5 0

3 years ago

Shaquana finds some nickels and pennies in her change purse. How much money (in

kupik [55]

Answer:

3.50$

Step-by-step explanation:

Since a nickel is 5 cents, you would do 5 x 60 which would equal 300, which is 3 dollars.

Since a penny is worth 1 cent, you would do 1 x 50 and get 50 cents, which is half a dollar.

3 + .5 = 3.50

Hope this helps!

<em>-kiniwih426</em>

4 0

2 years ago

A rocket is shot off from a launcher. The accompanying table represents the height of the rocket at given times, where x is time

galben [10]

Answer:

The height at time of 12.1 seconds is approximately 729.2562 feet

Step-by-step explanation:

The general form of the quadratic regression equation is y = A + Bx + Cx²

The quadratic regression formula is given as follows;

$B = \dfrac{S_{xy}S_{x'x'}-S_{x'y}S_{xx'}}{S_{xx}S_{x'x'} -(S_{xx'})^2}$

$C = \dfrac{S_{x'y}S_{xx}-S_{xy}S_{xx'}}{S_{xx}S_{x'x'} -(S_{xx'})^2}$

$A = \bar y - B \bar x - C \bar {x^2}$

$S_{xx} = \Sigma (x_i - \bar x)^2$

$S_{xy} = \Sigma (x_i - \bar x)(y_i - \bar y)$

$S_{xx'} = \Sigma (x_i - \bar x)(x^2_i - \bar {x^2})$

$S_{x'x'} = \Sigma (x^2_i - \bar {x^2})^2$

$S_{x'y} = \Sigma (x^2_i - \bar {x^2})(y_i - \bar {y})$

Solving using an online quadratic regression calculator, gives;

A = 2.5643259

B = 246.6374865

C = -15.41986006

Substituting gives;

y = 2.5643259 + 246.6374865·x -15.41986006·x²

When time, x = 12.1, we have;

y = 2.5643259 + 246.6374865×12.1 -15.41986006×12.1²≈ 729.2562 feet

The height at time of 12.1 seconds ≈ 729.2562 feet.

8 0

3 years ago

In a competition sequence threw the javelin 69.93 meters this was an improvement of 8% on his previous best throw calculate the

eduard

69.93×0.08=5.5944 these is the correct answer

3 0

3 years ago

Read 2 more answers

What is (4 radical 10 + 3) (4 radical 10 + 3).

11Alexandr11 [23.1K]

= 16*10 + 12 R10 + 12 R10 + 9
= 168 + 24 R10

5 0

3 years ago

Read 2 more answers

what is the unit rate of area in square feet of enlarged image per square foot of area of the original ​

what is the unit rate of area in square feet of enlarged image per square foot of area of the original