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3 years ago

Rewrite each expression by factoring out the GCF:

Mathematics

1 answer:

mash [69]3 years ago

8 0

1. 7(2x+1)

2.3(3m-4)

3.-5(3y+5)

4.4(3b+5)

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solniwko [45]

Answer:

-3/5 or -0.6

Step-by-step explanation:

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3 years ago

A result of Japan s attack on Pearl Harbor was A, the US formed a pact with Indochina against Japan.

stich3 [128]

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3 years ago

Select all the equations where x = 4 is a solution.<br><br> PLS HURRY

PolarNik [594]

Answer:

A and D

Step-by-step explanation:

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3 years ago

Read 2 more answers

(4x-3/2x+1)-10(2x+1/4x-3)=3

agasfer [191]

Step-by-step explanation:

4x-3x/2+1)-10(2x+1/4x-3)=3

4x-3x/2+1-20x+5/2x-3=3

collect like terms

4x-20x-3x/2+5x/2=3-1+3

-17x=5

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3 years ago

given that sin theta= 1/4, 0 is less than theta but less than pi/2, what is the exact value of cos theta

lapo4ka [179]

Answer:

$\cos{\theta} = \frac{\sqrt{15}}{4}$

Step-by-step explanation:

For any angle $\theta$ , we have that:

$(\sin{\theta})^{2} + (\cos{\theta})^{2} = 1$

Quadrant:

$0 \leq \theta \leq \frac{\pi}{2}$ means that $\theta$ is in the first quadrant. This means that both the sine and the cosine have positive values.

Find the cosine:

$(\sin{\theta})^{2} + (\cos{\theta})^{2} = 1$

$(\frac{1}{4})^{2} + (\cos{\theta})^{2} = 1$

$\frac{1}{16} + (\cos{\theta})^{2} = 1$

$(\cos{\theta})^{2} = 1 - \frac{1}{16}$

$(\cos{\theta})^{2} = \frac{16-1}{16}$

$(\cos{\theta})^{2} = \frac{15}{16}$

$\cos{\theta} = \pm \sqrt{\frac{15}{16}}$

Since the angle is in the first quadrant, the cosine is positive.

$\cos{\theta} = \frac{\sqrt{15}}{4}$

3 0

3 years ago