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3 years ago

How would you solve #2 and #3?

Mathematics

1 answer:

Pani-rosa [81]3 years ago

6 0

Connect the dots to each other

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5x - 7(2- 4x) = <br> 8 - 3(6 - 6x) =<br> 9a - 4(2a + 5) =

kati45 [8]

Answer:

the answer to 5x-7(2-4x)= =33x−14

the answer to 8 - 3(6 - 6x) ==18x−10

the answer to 9a - 4(2a + 5) ==a−20

Step-by-step explanation:

8 0

3 years ago

What are the roots of the equatio<br> x² - x -42=0

Alex17521 [72]

$x^2-x-42=0\\x^2+6x-7x-42=0\\x(x+6)-7(x+6)=0\\(x-7)(x+6)=0\\x=7 \vee x=-6$

4 0

2 years ago

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Please help me find total surface area

vredina [299]

Answer:

2(lw + wh + hl)

2×71

142

this is the answer

5 0

2 years ago

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The area of a triangle that is similar to the one below is the area of this triangle. What is the length of the base of the simi

svp [43]

The answer is 7 feet

7 0

3 years ago

Find all solutions to the equation. <br> cos^2 x +2cosx+1=0

Schach [20]

$x= \pi$

Step-by-step explanation:

$\cos^2x+\cos x+1=0$

Let $u= \cos x$

Then $u^2+2u+1=(u+1)^2=0$

$\cos x = -1$

This gives us $x= \pi$ or all integer multiples of $\pi (n \pi)$

4 0

3 years ago