3 years ago

What is the exact volume of a sphere that has a radius of 8.4 in.?

1 answer:

7 0

V = 4/3 * pi * r^3

V = 4/3 * pi * 8.4^3

Simplify exponent:

V = 4/3 * pi * 592.704

Multiply:

V = 790.272pi

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2 x - 5 + 7 y - 3 = 9 x - 1 - y -8 Solve For X AND Y (SHOW WORK PLEASE)

Maru [420]

Answer:

$\large\boxed{\sf x = \frac{8y+1}{7} }$

$\large\boxed{\sf x = \frac{7x-1}{8} }$

Group the Variable's:

2 x - 5 + 7 y - 3 = 9 x - 1 - y -8

2x -9x + 7y +y = -1 -8 +5 + 3

-7x + 8y = -1

From this find x and y

For X

-7x + 8y = -1

-7x = -1 -8y

7x = 8y + 1

x = (8y +1)/7

For Y

-7x + 8y = -1

8y = -1 +7x

y = (7x -1)/8

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1 year ago

Read 2 more answers

Gabriella is x years old. Her sister, Felicia, is six years older than she is. Their mother is twice as old as Felicia. Their au

Yuri [45]

G = x
Felicia is Gabriella's age + 6
F = x + 6
Their mother is twice Felicia's age
M = 2(x + 6) or 2x + 12
Tanya is the age of their mother plus Gabriella's age
A = 2x + 12 + x = 3x + 12
3x + 12

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3 years ago

Find the probability of spinning an A 3 times

Dima020 [189]

If the probability of spinning an A once is 1/12, then the probability of spinning an A 3 times is 3 × 1/12.

3 × 1/12 = 3/36

Simplify

3/36 = 1/12

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2 years ago

John and Jennifer are both basketball players. John made 5 out of 8 shots and Jennifer made 8 out of 12 shots. Who made the high

Natasha2012 [34]

Answer:

Jennifer made the higher percentage of shots

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Ruth sees 11 flags in the park. Juno sees 4 more flags than Ruth. Sandra sees 9 more flags than Juno. How many flags does Sandra

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First you add 11+4 which equals 15 then you add 15+9 which equals 24. So Sandra sees 24 flags

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3 years ago