2 years ago

Could someone please help me with this?

Mathematics

1 answer:

marta [7]2 years ago

3 0

Answer:

18000

Step-by-step explanation:

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What is the value of a2 + 3b ÷ c - 2d when a = 3, b = 8, c = 2, and d = 5

user100 [1]

The answer should be 5, but it's not an choice.

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3 years ago

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Mary wants to fill in a cylinder vase. At the flower store they told her that the vase should be filled 3/4 for the flowers to l

Romashka [77]

Answer:

84.8 in³

Step-by-step explanation:

The formula for the volume of a cylinder is ...

V = πr²h

The volume Mary will be filling will be 3/4 of the 9-inch height of the vase, so is ...

V = π(2 in)²(3/4·9 in) = 27π in³ ≈ 84.8 in³

_____

<em>Comment on the answer</em>

In more conventional units of measure, that is very nearly 3 pints of water.

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3 years ago

In ΔQRS, q = 1.3 inches, r = 1.6 inches and ∠S=157°. Find the length of s, to the nearest 10th of an inch.

hjlf

Answer:

2.8

Step-by-step explanation:

using cosine rule

$s^{2}$ = $1.3^{2} + 1.6^{2} - 2(1.3)(1.6)cos 157$

s = $\sqrt{8.0793}$ = 2.842 = 2.8

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3 years ago

The first 2 terms of an ap is -2 and 3 how many terms are needed for the sum to be equal to 306

Zepler [3.9K]

Answer:

306

Step-by-step explanation:

-2 + 3 = 1

so really it would take 306 times to get to this

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3 years ago

[please help asap!]

Citrus2011 [14]

Answer:

(a+b)^2 = a^2 + 2ab + b^2

(a-b)^2 = a^2 - 2ab + b^2

(a-b)(a+b) = a^2 - b^2

Step-by-step explanation:

They differ because you can either add the property or multiply

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3 years ago