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Rudiy27
3 years ago
15

Literal equations 5y-72=7+5x

Mathematics
1 answer:
joja [24]3 years ago
4 0

Step 1. Add 72 to both sides

5y = 7 + 5x + 72

Step 2. Simplify 7 + 5x + 72 to 5x + 79

5y = 5x + 79

Step 3. Divide both sides by 5

y = 5x + 79/5

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Which algebraic expression is equivalent to the expression below? [x +2 - (5x + 5)]2
kvv77 [185]
<span>[x + 2 - (5x + 5)] ² =
[x + 2 - 5x - 5]² =
[x - 5x + 2 - 5]² =
[-4x - 3]² =
(-4x)² - 2.(-4x).3 + (-3)² =
16x² + 24x + 9

Answer:
</span>\boxed{C = 16x^2 + 24x + 9}<span>



</span>
6 0
3 years ago
4x + y = 3
cestrela7 [59]

Answer:

-1

Step-by-step explanation:

You have to use simultaneous linear equation as there are 2 equations given

use the subtitution method as what I've shown above

Hope you can understand well

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3 years ago
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Scorpion4ik [409]
Answer:
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Step-by-step explanation:

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4 0
2 years ago
Paul got 15 out of 20 questions correct on his test. What percent of the questions did Paul get correct?
Dahasolnce [82]
75%

15/20 = 75/100 (you just have to multiply both top and bottom by five)
4 0
3 years ago
Read 2 more answers
Sin400° = _____<br><br> -sin40°<br> sin40°<br> sin(-40)°
Anna11 [10]

Answer:

<em>Sin 400° = Sin 40°</em>

Step-by-step explanation:

We have to find the value of the trigonometric function <em>Sin 400°</em>

Here,

       Sin 400° = Sin (360° + 40°)

The picture shown below shows that in 1st quadrant <em>All trigonometric functions( Sin, Cos, Tan, Cosec, Sec, Cot ) </em> are positive.

And <em>Sin(360° + Ф°) = Sin ( Ф°)</em>

                      = Sin ( 40°)

Therefore, <em>Sin 400° = Sin 40°</em>

3 0
3 years ago
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