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2 years ago

(Quick Please) 8x - 4 < -36 solve the equality show your work

Mathematics

2 answers:

creativ13 [48]2 years ago

7 0

Answer:

x < -4

Step-by-step explanation:

8x - 4 < -36

+4 +4 (Add 4 on both sides)

8x < -32

/8 /8 (Divide by 8 on both sides)

x < -4

Stels [109]2 years ago

4 0

Answer is -4

Step-by-step explanation:

8x-4< -36

8x < -36+4 (move [- 4] to the other side to find x)

8x < -32

8x < -4

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solution

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3) Simplify
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3 years ago

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2 years ago

Simplify the expression by using a double-angle formula or a half-angle formula. (a) 2 tan(5°) 1 − tan2(5°)

antoniya [11.8K]

The question is related to trigonometry and we have to use the formula of double angle .

Here we use double angle formula of tangent function which is

$tan(2x) = \frac{2tan(x)}{1-tan^2(x)}$

Given expression is

$\frac{2tan (5 \degree)}{1-tan^2(5 \degree)}$

Comparing it with double angle formula, we will get x = 5

SO the required expression is equal to

$\frac{2tan (5 \degree)}{1-tan^2(5 \degree)} =tan(2*5 )$

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So the answer is tan(10) .

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3 years ago

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Romashka-Z-Leto [24]

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Eg the first one 24/120 x 100 = 20%

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2 years ago

Solve the following system of equations.

Lerok [7]

Answer:

x=5 and y=-2

Step-by-step explanation:

3x+5y=5

-(7x+5y=25)

-4x=-20

x=5

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2 years ago