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3 years ago

6

Jessica was planting flower seeds in a garden. She planted 26.53 square feet of seeds in 7 minutes. At what unit rate did Jessic

a plant seeds?

1 answer:

Snezhnost [94]3 years ago

5 0

Jessica planted 3.79 square feet of seeds each minute.

if we divide 26.53 by 7 we can get that answer

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The museum charges $14 for adult admission and $11 for each child. the museum bill for a school field trip was $896.

lord [1]

14x + 11y = 896

x = number of adults
y= number of kids
if nine adults went then 70 kids went

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3 years ago

PLEASE ANSWER!!!

marin [14]

Step-by-step explanation:

(10-0) ÷ (27-0) = x ÷ y

10 ÷ 27 = x ÷ y

27x = 10y

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The equation x²– 8x – 5 = 0 can be transformed into the equation (x - p)² = q, where p and q are real numbers. What are the valu

Juliette [100K]

The form (x - p)^2 = q is the form that completing the square will leave us with.

---Add 5 to both sides

x^2 - 8x = 5

---Divide the b term by 2, and square it. Then, add that number to both sides.

-8/2 = -4

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(x - 4)^2 = 21

p = 4

q = 21

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2 years ago

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3 years ago

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Consider function f.

tekilochka [14]

Given:

The function is:

$f(x)=\sqrt{7x-21}$

To find:

The steps of finding the inverse function $f^{-1}(x)$ .

Solution:

We have,

$f(x)=\sqrt{7x-21}$

The steps of finding the inverse function are:

Step 1: Substitute $f(x)=y$ .

$y=\sqrt{7x-21}$

Step 2: Interchange x and y.

$x=\sqrt{7y-21}$

Step 3: Taking square on both sides, we get

$x^2=7y-21$

Step 4: Adding 21 on both sides, we get

$x^2+21=7y$

Step 5: Divide both sides by 7.

$\dfrac{1}{7}x^2+3=y$

Step 6: Substitute $y=f^{-1}(x)$ .

$\dfrac{1}{7}x^2+3=f^{-1}(x)$ , where $x\geq 0$ .

Therefore, the inverse of the given function is $f^{-1}(x)=\dfrac{1}{7}x^2+3$ and the arrangement of steps is shown above.

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3 years ago