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alexgriva [62]
3 years ago
9

+ 3. -5y- 10=-60 А solve the equation

Mathematics
1 answer:
Phoenix [80]3 years ago
3 0
Y=10
Add 10 to both sides
-5y=-50
Then divide both sides by -5
y=10

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notka56 [123]
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6. -9 2/3(-2 1/4a + b + 8 1/4) = 21 3/4a - 9 2/3b - 79 3/4)
7. 64x + 24.....GCF = 8.......8(8x + 3)
8. -5y - 35......GCF = -5.....-5(y + 7)
9. 36 - 8z.......GCF = 4.......4(9 - 2z)
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11. -2x + 5......-2(x - 5/2)
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6 0
3 years ago
Please help!!!! the question is in screenshot
andreev551 [17]

Answer:

-\cos nw_0t

Step-by-step explanation:

We can use the double angle identity for sine.

\sin (A+B)=\sin A \cos B+\sin B\cos A

The given expresion is

\sin (nw_0t-90)

We apply the identity to get:

\sin (nw_0t-90)=\sin nw_0t \cos 90-\cos nw_0t \sin 90

We simplify to obtain;

\sin (nw_0t-90)=\sin nw_0t (0)-\cos nw_0t (1)

This simplifies to:

\sin (nw_0t-90)=-\cos nw_0t The correct answer is D

8 0
3 years ago
If c(x) = 4x-2 and d(x) = x^2 + 5x is is (c•d) (x)
FinnZ [79.3K]
<h3>Answer: (c * d)(x) = 4x^3 + 18x^2 - 10x</h3>

Work Shown:

I'm assuming the dot means multiplication. If so, then,

(c * d)(x) = c(x)*d(x)

(c * d)(x) = [ c(x) ] * [ d(x) ]

(c * d)(x) = (4x-2)(x^2+5x) .... substitution

(c * d)(x) = 4x(x^2+5x) - 2(x^2+5x) ... distribute

(c * d)(x) = 4x(x^2)+4x(5x) - 2(x^2)-2(5x) ... distribute again

(c * d)(x) = 4x^3 + 20x^2 - 2x^2 - 10x

(c * d)(x) = 4x^3 + 18x^2 - 10x

3 0
3 years ago
Can someone please answer this with steps <br><br>Please do answer if you do not have steps
e-lub [12.9K]

Answer:

x = 25

Step-by-step explanation:

Vertical opposite angles are equal.

(4x - 25) = 75

4x - 25 = 75

4x = 100

x = 25

4 0
3 years ago
Read 2 more answers
Which equation has the correct sign on the product
DanielleElmas [232]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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