We can double check by plugging in the number. However, the question trys to trick you, by giving you the diametre, but in order for the formula to work (V=4 /3πr^3), we will divide the diametre by 2 (12 ÷ 2= 6),

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Once we do that, we can double check, when you plug in your numbers your answer will be around 900 (904.78, to be exact, but the question asks for approximate diamtetre).

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Have a good day :)

3 0

3 years ago

Hey can you please help me posted picture of question

larisa [96]

$(5x - 2)^2 = 15$

Square root both sides:
$5x - 2 = \pm\sqrt{15}$

Add 2 to both sides:
$5x = pm\sqrt{15} + 2$

Divide both sides by 5:
$x = \dfrac{ \pm\sqrt{15} + 2}{5}$

Answers:
$x = \dfrac{ \sqrt{15} + 2}{5} \ or \ \dfrac{ - \sqrt{15} + 2}{5}$

Answer: (B) and (E)

5 0

3 years ago

Read 2 more answers

Help me please I don’t understand this and it is due tonight

andreyandreev [35.5K]

Answer:

y = 5/3x + 31/3

Step-by-step explanation:

5 0

3 years ago

The expression 3^2 ∙ 3^n simplifies to 3^20.

tiny-mole [99]

Answer: 18

Step-by-step explanation:

3² * 3ⁿ = 3²⁰

3⁽²⁺ⁿ⁾ = 3²⁰

2 + n = 20

-2 -2

n = 18

7 0

3 years ago