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3 years ago

Factor completely 10x2 + 2x − 8. (1 point)

Mathematics

2 answers:

ivanzaharov [21]3 years ago

7 0

Step-by-step explanation:

10x²+2x-8=0

=>10x²+10x-8x-8=0

=>10x(x+1)-8(x+1)=0

=>(10x-8)(x+1)=0

=>2(5x-4)(x+1)=0

Option B

Jet001 [13]3 years ago

4 0

Answer:

2(5x − 4)(x + 1)

Step-by-step explanation:

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Step-by-step explanation:

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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:

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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.

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

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Step-by-step explanation:

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