3 years ago

Help ASAP 8th-grade math

Mathematics

2 answers:

Slav-nsk [51]3 years ago

7 0

Answer:

ITS 9!!!!!!!!!!

Step-by-step explanation:

BRAINLIEST PLS

Pie3 years ago

5 0

Answer:

Step-by-step explanation:

9... if you do 24÷8/3 you will get 9

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15=5-(c+7) solve the equation

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The variable c is equal to 13

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Question<br> Write the ratio 12.9 to 0.6 as a simplified fraction.

andrezito [222]

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21.5

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3 years ago

-4x+5 + -13x+39=180 angle measure

mylen [45]

Step-by-step explanation:

−4x+5−13x+39=180

Step 1: Simplify both sides of the equation.

−4x+5−13x+39=180

−4x+5+−13x+39=180

(−4x+−13x)+(5+39)=180(Combine Like Terms)

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Step 2: Subtract 44 from both sides.

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Step 3: Divide both sides by -17.−17x

−17

136

−17

x=−8

Answer:

x=−8

5 0

3 years ago

Find the angle between the vectors u=i-9j and v=8i+5j

Katyanochek1 [597]

Answer: $\cos^{-1} \left(\frac{-37}{\sqrt{7298}} \right) \approx 115.665^{\circ}$

Step-by-step explanation:

$u \cdot v=(1)(8)+(-9)(5)=-37\\\\|u|=\sqrt{1^{2}+(-9)^{2}}=\sqrt{82}\\\\|v|=\sqrt{8^{2}+5^{2}}=\sqrt{89}\\\\\cos \theta=\frac{-37}{\sqrt{82}\sqrt{89}}\\\\\theta=\cos^{-1} \left(\frac{-37}{\sqrt{82}\sqrt{89}} \right)\\\\\theta=\boxed{\cos^{-1} \left(\frac{-37}{\sqrt{7298}} \right) \approx 115.665^{\circ}}$

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2 years ago

Help ASAP *8th-grade math*

Help ASAP 8th-grade math