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3 years ago

Six is less than or equal to the sum of 4 and -2x

1 answer:

3 0

6 ≤ 4 + (-2x)
6 (-4) ≤ 4 - 2x - 4
4 and 4 cancels out
2 ≤ -2x

-1≥x

When you divide by a negative number, the inequality sign turns to the other side.

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Given sec theta=-4/3 and 90°

hoa [83]

Answer:

Option A.

Step-by-step explanation:

It is given secθ = - $\frac{4}{3}$

then cosθ = - $\frac{3}{4}$

Now we know the identity

sinθ = $\sqrt{1-cos^{2}\theta }$

= $\sqrt{1-(-\frac{3}{4} )^{2}}$

= $\frac{\sqrt{7} }{4}$

Now sin2θ = 2sinθcosθ

Now we put the values of cosine and sine in the formula

sin2θ = 2×(- $\frac{3}{4}$ )( $\frac{\sqrt{7}}{4}$ )

= - $\frac{3\sqrt{7}}{8}$

Therefore, option A. is the answer.

3 0

3 years ago

20pts!!! PLS HELP!!!

vodka [1.7K]

Answer:

(x - 1) x (5x + 4)

Step-by-step explanation:

5 x 2 – 4 = 6

5 x 4 – 4 = 16

6 x 2 – 11x – 4 = 56

5 x 2 – x – 4 = (x - 1) x (5x + 4)

5 0

3 years ago

Y divided by 9 equals 81

algol [13]

If you do 81 x 9 which equals 729. If you want to check, you do 729 divided by 9 and you get 81.

5 0

3 years ago

Read 2 more answers

How do you factorise y-26

Bond [772]

The expression is not factorable with the rational numbers.

$y - 26$

4 0

3 years ago

Need help please anyone ???

Vesna [10]

Answer:

7.93×10⁶

Step-by-step explanation:

6 0

3 years ago