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Fantom [35]
3 years ago
10

Solve for y. -80 y = 80

Mathematics
2 answers:
tekilochka [14]3 years ago
8 0
-1, because a negative times a negative is a positive

FrozenT [24]3 years ago
6 0
-80y=80
-80y/-80=80/-80
Y = -1  Hope this helped!

-Twix
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What are the values of the three Trigonometric ratio for angle L, in simplest form
bulgar [2K]

\sin\theta=\dfrac{opposite}{hypotenuse}\\\\\cos\theta=\dfrac{adjacent}{hypotenuse}\\\\\tan\theta=\dfrac{opposite}{adjacent}

opposite=20\\\\adjacent=15\\\\hypotenuse=25\\\\\sin L=\dfrac{20}{25}=\dfrac{4}{5}\\\\\cos L=\dfrac{15}{25}=\dfrac{3}{5}\\\\\tan L=\dfrac{20}{15}=\dfrac{4}{3}

3 0
4 years ago
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Need help finnishing this table
Katena32 [7]

Answer:

1

3

5

Step-by-step explanation:

Plug the X value into the given equation

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(0) + 3 = 3

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What is the value of x?<br> A. 3<br> B. 9<br> C. 15<br> D. 30
ra1l [238]

Answer:

<em>C. 15</em>

Step-by-step explanation:

Assuming that these segments formed from each parallel line are proportional, x/5 = x-6/3.

Now cross multiply by multiplying each denominator by the opposite numerator, this is so the denominators or bottom numbers of each fraction will cancel.

x/5 = x–6/3 → (3)(x/5) = (3)(x–6/3) → 3x/5 = x–6 →

(5)(3x/5) = (5)(x–6) → 3x = 5(x–6) → 3x = 5x – 30.

The last step is to do the basic algebra to find x:

3x = 5x – 30

–5x –5x

[5x will cancel when you subtract both sides by 5x]

-2x = -30

(-1) (-1)

[2 negatives make a positive when -1 is multiplied by an expression with a negative coefficient]

2x = 30

÷2 ÷2

[divide both sides by 2 to simplify 2x to x]

x = 15

_____

You can also check that both sides are proportional because

5 → x

x = 15

5 → 15

3 → x – 6

x = 15

3 → 9

5 × <u>3</u> = 15

3 × <u>3</u> = 9

7 0
3 years ago
What is 20.50 into a fraction. Explain how you did this
Misha Larkins [42]
20.50 into a fraction is 41/2. Since 20 is already a whole number, there is no need to convert it. Since .50 is a decimal, I have to convert it to a fraction, which is 1/2. I end up with the mixed number 20 1/2. Since I need to convert it to a fraction, I have to simplify it. 20 1/2 written as a fraction greater than 1 is 41/2.

Hope this helped !!
7 0
3 years ago
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