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2 years ago

Which equation is equivalent to the equation x^2+y^2= 25?

Mathematics

1 answer:

satela [25.4K]2 years ago

3 0

9514 1404 393

Answer:

D. y = ±√(25 -x²)

Step-by-step explanation:

Subtract x² and take the square root to solve for y.

x² +y² = 25 . . . . . . . given

y² = 25 -x² . . . . . . . . subtract x²

y = ±√(25 -x²) . . . . . take the square root

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The force of gravity depends on the distance between objects? true or false

MrRissso [65]

Answer:

True

Step-by-step explanation:

It depends on two factors :mass of the objects and distance between the objects

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3 0

3 years ago

four friends went shopping for school supplies the table shows the number of school supplies each Brown bought and the total cos

allsm [11]

Average cost = Total cost / Number of supplies

$\begin{gathered} \mu=\frac{T}{n} \\ \text{For Rosa} \\ \mu=\frac{29.91}{3}=9.97 \\ \text{For }Ellis \\ \mu=\frac{31.44}{4}=7.86 \\ \text{For }Andie \\ \mu=\frac{45.04}{4}=11.26 \\ \text{For }Keondre \\ =\frac{54.85}{5}=10.97 \end{gathered}$

5 0

1 year ago

A small business earns a profit of $6500 in January and $17,500 in May. What is the rate of change in profit for this time perio

MAXImum [283]

Rate of change of profit for this period is $2750 per month

Solution:

Given that,

Profit of $6500 in January and $17,500 in May

To find: Rate of change

Since,

January is the first month of the year (1) while May is the fifth month (5)

Therefore, we get two points

(1, 6500) and (5, 17500)

Using these points we can find the rate of change in profit for this time period

The rate of change using the following formula:

$m = \frac{y_2-y_1}{x_2-x_1}$

Here from the points,

$(x_1, y_1) = (1, 6500)\\\\(x_2, y_2) = (5, 17500)$

Therefore, rate of change is given as:

$m = \frac{17500-6500}{5-1}\\\\m = \frac{11000}{4}\\\\m = 2750$

Thus rate of change of profit for this period = $2750 per month

8 0

4 years ago

Which polar coordinates represent the same point as (4, −π/2)

marin [14]

You can go full 2π rotate around counterclockwise so the angle wouldn't be negative.

So -π/2 + 2π = -π/2 + 4π/2 = 3π/2

So (4, 3π/2) is the same point as (4, -π/2)

7 0

3 years ago

The town library is raising money by selling old books for $2 each.Which equation can be used to find the amount of money raised

alexgriva [62]

Y=2x
y is the amount of money made from the sold books
x is the number of books that are sold (it is x because you don't know how many will be sold, so you have to account for all possibilities)
2x is because every book is sold for 2 dollars, so that mean x is multiplied by 2 to get y

5 0

3 years ago

Read 2 more answers