3 years ago

Simplify the expression (5ab3)^2 using the properties of exponents.

1 answer:

7 0

Answer: 225 a^2 b^2

first you’d work within the parentheses and multiply 5 by 3, after that you square everything (multiply everything by itself)

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Find the total surface area of this triangular prism. 30 cm 18 cm 7 cm 24 cm

Effectus [21]

Answer:

588 cm²

Step-by-step explanation:

24 × 7 + 30 × 7 + 2(24 × 18) + 18 × 7 = 7(24 + 30 + 18) + 2 × 42 = 7 × 72 + 84 = 504 + 84 = 588 cm²

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3 years ago

Simplify. This algebraic expression y-3/3+12

Ksenya-84 [330]

Answer:

y-11

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago

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Sophia spent $27.16 on four sandwiches. If each sandwich cost the same amount, how much does one sandwich cost?

HACTEHA [7]

Answer:

6.79

Step-by-step explanation:

you just divide 27.16 (the cost) by 4 (how many sandwiches were purchased)

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3 years ago

V=2.5(6.4−t)

Alja [10]

Answer:

6.4 minutes ( or 6 minutes and 24 seconds)

Step-by-step explanation:

Filling up the jug means the empty space is 0, hence V = 0.

We plug in 0 into V and solve for t to get the time required to fill it up:

$V=2.5(6.4-t)\\0=2.5(6.4-t)\\0=16-2.5t\\2.5t=16\\t=\frac{16}{2.5}\\t=6.4$

Hence it will take 6.4 minutes to fill up the jugs.

Note: 0.4 minutes in seconds is $0.4*60=24$ seconds

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3 years ago