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3 years ago

Anna's favorite pool toys are the beach balls. If the radius of one of the beach balls

Mathematics

1 answer:

Kryger [21]3 years ago

4 0

Answer:

288

Step-by-step explanation:

please review the attachment for step by step soluation

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If pie is round then does that mean its also pi(3.14)

Papessa [141]

Answer:

no because if your talking about like pumpkin pie or apple pie the the pie or pie tin has a circumference when pi 3.14 is an ongoing number.

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2 years ago

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I’m super confused new topic not sure what to do for this one

geniusboy [140]

There’s no question here.

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1 year ago

Find the product of all real values of r for which 1/2x=r-x/7

Dahasolnce [82]

Answer:

$r = \±\sqrt{14$

$Product = -14$

Step-by-step explanation:

Given

$\frac{1}{2x} = \frac{r - x}{7}$

Required

Find all product of real values that satisfy the equation

$\frac{1}{2x} = \frac{r - x}{7}$

Cross multiply:

$2x(r - x) = 7 * 1$

$2xr - 2x^2 = 7$

Subtract 7 from both sides

$2xr - 2x^2 -7= 7 -7$

$2xr - 2x^2 -7= 0$

Reorder

$- 2x^2+ 2xr -7= 0$

Multiply through by -1

$2x^2 - 2xr +7= 0$

The above represents a quadratic equation and as such could take either of the following conditions.

(1) No real roots:

This possibility does not apply in this case as such, would not be considered.

(2) One real root

This is true if

$b^2 - 4ac = 0$

For a quadratic equation

$ax^2 + bx + c = 0$

By comparison with $2x^2 - 2xr +7= 0$

$a = 2$

$b = -2r$

$c =7$

Substitute these values in $b^2 - 4ac = 0$

$(-2r)^2 - 4 * 2 * 7 = 0$

$4r^2 - 56 = 0$

Add 56 to both sides

$4r^2 - 56 + 56= 0 + 56$

$4r^2 = 56$

Divide through by 4

$r^2 = 14$

Take square roots

$\sqrt{r^2} = \±\sqrt{14$

$r = \±\sqrt{14$

Hence, the possible values of r are:

$\sqrt{14$ or $-\sqrt{14$

and the product is:

$Product = \sqrt{14} * -\sqrt{14}$

$Product = -14$

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3 years ago

Please help me with this question fast!!!!

zubka84 [21]

Reflection and translation

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3 years ago

Marisol paid $3.00 for 25 pound of sliced turkey meat. What was the price per pound of the turkey meat?

bekas [8.4K]

Answer:

[see explanation]

Step-by-step explanation:

We need to find the unit rate of the meat.

$\frac{dollars}{pound} =\frac{3}{25}=0.12$

The price per pound of the turkey meat should be 12 cents per pound.

3 0

2 years ago

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