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3 years ago

The sum of the measures of two angles is 107.3º. One angle has a measure of 51º. What is the measure of the second angle?

Mathematics

1 answer:

babunello [35]3 years ago

3 0

Answer:

56.3°

Step-by-step explanation:

If the total is 107.3° just subtract 51° to get 56.3°

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Which of the following equations has both 1 and −3 as solutions?

soldi70 [24.7K]

The answer is B)

x2+2x−3=0

Factor left side of equation.

(x−1)(x+3)=0

Set factors equal to 0.

x−1=0 or x+3=0

x=1

or

x=−3

5 0

3 years ago

Read 2 more answers

Use Pythagorean Theorem to solve for x.<br><br> HELP ME PLZZZZ!!!! ASAP

4vir4ik [10]

Answer: $2\sqrt{22}$

Step-by-step explanation:

Pythagorean theorem: $a^{2} +b^{2} = c^{2}$ , where a and b are the legs and c is the hypotenuse.

We can solve for x by only using the left side of the triangle. Since we're only using the left side of the triangle, we can reduce 18 by 2 to get 9. Now we plug in our information to the equation.

$9^{2} +b^{2} = 13^{2}$

$81 +b^{2} = 169$

Since we don't know what $b^{2}$ is, we're going to isolate it by subtracting 81 on both sides

$b^{2} = 88$

We have to square root both sides in order to find out b (or x in the problem).

$\sqrt{b^{2}} = \sqrt{88}$

When you put this on a calculator it would result in $2\sqrt{22}$ which is the answer d in the problem.

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3 years ago

P=12 when q=8 and r=3

guapka [62]

<h3>we can make the below formulas with this information:</h3>

$1. \frac{p}{q} = r \\ 2.q \times r = p \\ 3. \frac{p}{r} = q \\ 4.\frac{q \times r}{p} = 1$

<h3>hope it helped you :-)</h3>

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3 years ago

Write an equation parallel to y=3x−1 and goes through the point (-2, -13)

solong [7]

Answer:

y=3x-7

Step-by-step explanation:

we use the equation of the line:

y=mx+b

if the line is parallel, then the slope(m) of the line stays the same:

y=3x+b

we then substitute the ordered pair into the equation and solve for b:

-13 = 3(-2)+b

-13 = -6+b

-13+6 = b

-7 = b

now we substitute the b value into the original equation and the answer:

y=3x-7

Hope this helps :)

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3 years ago

The ratio of the number of girls who liked a white T-shirt best to the number of girls who liked a colored T-shirt best was ...

Virty [35]

Answer:

YEs

Step-by-step explanation:

BeCauSe

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3 years ago