3 years ago

Lauren answered 150 questions correctly on her multiple choice history final that had

Mathematics

2 answers:

Hitman42 [59]3 years ago

7 0

Answer: She answer 75% correctly

Step-by-step explanation:

150÷200= .75×100

Savatey [412]3 years ago

4 0

She answers 75 percent correctly

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If m stands for the number, which best represents the following phrase? The product of eight and a number, decreased by ten *

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Which expression best represents all solutions of x for the equation cot x = –1.25, where k is any integer?

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The answer is " $-0.675+ k \ \pi$ "

Step-by-step explanation:

Given:

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Find the sum:<br> ( m 3 + 4n) + (3m – 2n+6)

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i would belive its 12 :D

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$\frac{9}{25}$
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8 times of the eight term of an arithmetic progression is equal to 12 times of the twelfth term. find its first term if the comm

Ilya [14]

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a₁ = 38

Step-by-step explanation:

Given AP, where:

8a₈ = 12a₁₂
d = -2,
a₁ = ?

=============

<h3>Solution</h3>

aₙ = a₁ + (n-1)d

a₈ = a₁ + 7d = a₁ + 7*(-2) = a₁ - 14
a₁₂ = a₁ + 11d = a₁ + 11*(-2) = a₁ - 22

8a₈ = 12a₁₂

8(a₁ - 14) = 12(a₁ - 22)
2(a₁ - 14) = 3(a₁ - 22)
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