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3 years ago

Please help me asap really important

Mathematics

1 answer:

vichka [17]3 years ago

5 0

Answer:

r = 3cm

h = 20cm

SA = 433.32cm^3

Step-by-step explanation:

If you use 3.14 for pi you will get 433.32.

Plz mark brainliest if this helped!!!

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Salina's age is one-quarter the age of her aunt. If a represents her aunt's age, which expression represents Salina's

alukav5142 [94]

Answer:

D. A over 4

Step-by-step explanation:

One quarter is equal to $\frac{1}{4}$ . If her aunt is age 'a', than Salina's age is a/4

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3 years ago

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Answer:

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Step-by-step explanation:

we know that

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4 years ago

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Answer:

Step-by-step explanation:

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3 years ago

Simplify 3^2 ⋅ 3^5. 3^7 3^10 9^7 9^10

Maru [420]

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3 years ago

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Evaluate-5x^3 + 3x^2 - 8x + 2 when x = -2

VikaD [51]

9514 1404 393

Answer:

Step-by-step explanation:

In general, put the number in the expression and do the arithmetic.

Evaluating polynomials is sometimes easier if they are put into "Horner form."

= ((-5x +3)x -8)x +2

= ((-5(-2) +3)(-2) -8)(-2) +2 . . . . use -2 for x

= (13(-2) -8)(-2) +2

= (-34)(-2) +2

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The value of the expression when x = -2 is 70.

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3 years ago