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omeli [17]
3 years ago
10

Help!! i need help asap

Mathematics
1 answer:
umka21 [38]3 years ago
7 0
Y = mx + b
y = -4x -2

trying option 1

-8x + 2y = -4

2y = -4 + 8x

y = -2 + 4x

so its incorrect

Now trying option 2

8x + 2y = -4

2y = -4 - 8x

y = -2 - 4x

y = -4x -2

so Option B is correct
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If the sine of an acute angle is 3/5, what is the cosine of<br> that angle?
Korvikt [17]

Answer:

The cosine of the angle is 4/5.

Step-by-step explanation:

An acute angle is between 0º and 90º, in the first quadrant of the trigonometric circle, in which both the sine and the cosine are positive values.

For each angle \alpha, we have that:

\sin^{2}{\alpha} + \cos^{2}{\alpha} = 1

We have that:

\sin{\alpha} = \frac{3}{5}

So

\sin^{2}{\alpha} + \cos^{2}{\alpha} = 1

(\frac{3}{5})^{2} + \cos^{2}{\alpha} = 1

\cos^{2}{\alpha} = \frac{16}{25}

\cos{\alpha} = \frac{4}{5}

The cosine of the angle is 4/5.

8 0
3 years ago
Simplify this expression<br> 4x(7x^2)<br> A 11x^2<br> B. 28x^2<br> C. 11x^3<br> D. 28x^3
slega [8]

Answer:

28 x^3

Step-by-step explanation:

4x(7x^2)

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28 x^3

7 0
4 years ago
Read 2 more answers
PLEASE ANSWER ASAP!<br> 2(h -3.5) = -11<br> what is h?
masya89 [10]

Answer: -2

Step-by-step explanation:

2(h -3.5) = -11 Distributive property

2h - 7 = -11. Add 7 to both sides

2h = -4. Divide both sides by 2

h = -2

3 0
3 years ago
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nydimaria [60]

Answer:

It will cost 42 to completely fill the box with hay.

have a good day <3

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4 years ago
Tyler is 8 years old. His sister Olivia is 4 years less than twice his age. Write a numerical expression for Olivia's age in the
Marat540 [252]
Numerical expression:

2 * 8 - 4 or 12

Good luck :)
6 0
4 years ago
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