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3 years ago

What’s the answer??

Mathematics

1 answer:

astra-53 [7]3 years ago

7 0

Use parentheses for M and N
$(5x {}^{2} + 7x - 4 )- ( - 3 {x}^{2} - 4x + 5)$
一一一一一
remove parentheses
$5 {x}^{2} + 7x - 4 + 3 {x}^{2} + 4x - 5$
一一一一一
add like terms
$8 {x}^{2} + 11x - 9$

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Find the volume of the composite solid. Round your answer to the nearest hundredth.

zaharov [31]

Answer:

Volume of solid = 737 cm³ (Approx)

Step-by-step explanation:

Given:

Radius r = 4 cm

Length of cylinder = 12 cm

Find:

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Volume of solid = Volume of hemisphere + Volume of cylinder

Volume of solid = (2/3)πr³ + πr²h

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3 years ago

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Rudik [331]

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3 years ago

Calculate the value of each expression: (-8)•(-2/3) SHOW YOUR WORK:

inna [77]

Answer: $\frac{16}{3}$

Step-by-step explanation:

For this exercise it is important to remember the multiplication of signs:

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sergiy2304 [10]

Answer:

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