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3 years ago

7

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1 answer:

Katen [24]3 years ago

5 0

-6x + 3 ≥ 21

Subtract 3 from both sides.

-6x ≥ 21 - 3

Simplify.

-6x ≥ 18

Divide both sides by -6.

Remember, when dividing or multiplying by a negative number, you must switch the signs.

x ≤ 18 / -6

Simplify.

x ≤ -3

So, your answer is D) x ≤ -3

~Hope I helped!~

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Please help me answer this question. I will give 15 points.

hichkok12 [17]

Answer:

acute

Step-by-step explanation:

Evaluate the angle C = (11x + 85)/3 at x = 13:

C(13) = (143 + 85)/3, or 76 degrees. This is an acute angle (more than 0 and less than 90 degrees).

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3 years ago

The formula for the area of a trapezold with altitude k and bases m and n is A=k/2(m+n)

Ghella [55]

Answer:

$m=\frac{2A-kn}{k}$

Hence, option C is true.

Step-by-step explanation:

Given the expression

$A=\frac{k}{2}\left(m+n\right)$

Solving for 'm'

$A=\frac{k}{2}\left(m+n\right)$

Flip the equation

$\frac{k}{2}\left(m+n\right)=A$

Expanding by applying the distributive law: $a\left(b+c\right)=ab+ac$

$\frac{1}{2}km+\frac{1}{2}kn=A$

Add (-1)/2 × kn to both sides

$\frac{1}{2}km+\frac{1}{2}kn+\left(-\frac{1}{2}kn\right)=\left(-\frac{1}{2}kn\right)+A$

simplify

$\frac{1}{2}km=-\frac{1}{2}kn+A$

Divide both sides by k/2

$\frac{\frac{1}{2}km}{\frac{k}{2}}=\frac{-\frac{1}{2}kn+A}{\frac{k}{2}}$

$m=\frac{2A-kn}{k}$

Therefore,

$m=\frac{2A-kn}{k}$

Hence, option C is true.

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2 years ago

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nordsb [41]

40 times 9 is 360!!!!!!

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BabaBlast [244]

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2 years ago

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