3 years ago

Factor the quadratic expression completely 6x^2 – 28x + 32

Mathematics

1 answer:

Fiesta28 [93]3 years ago

7 0

Answer: 2(x-2)(3x-8)

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A bag contains 5 red blocks, 7 yellow blocks, and 8 green blocks. What is the ratio of green blocks to total blocks? Choose all

zysi [14]

Answer:

Step-by-step explanation:

Total: 20 blocks

Green: 8

8/20

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2 years ago

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Find the exact value of cos theta, given that sin thetaequalsStartFraction 15 Over 17 EndFraction and theta is in quadrant II.

vova2212 [387]

Answer:

$cos \theta = -\frac{8}{17}$

Step-by-step explanation:

For this case we know that:

$sin \theta = \frac{15}{17}$

And we want to find the value for $cos \theta$ , so then we can use the following basic identity:

$cos^2 \theta + sin^2 \theta =1$

And if we solve for $cos \theta$ we got:

$cos^2 \theta = 1- sin^2 \theta$

$cos \theta =\pm \sqrt{1-sin^2 \theta}$

And if we replace the value given we got:

$cos \theta =\pm \sqrt{1- (\frac{15}{17})^2}=\sqrt{\frac{64}{289}}=\frac{\sqrt{64}}{\sqrt{289}}=\frac{8}{17}$

For our case we know that the angle is on the II quadrant, and on this quadrant we know that the sine is positive but the cosine is negative so then the correct answer for this case would be:

$cos \theta = -\frac{8}{17}$

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2 years ago

Find the distance between (3,7) and (6,5)

zubka84 [21]

Answer:

square root of five but if it needs to be simplified then 2.24 (rounded)

Step-by-step

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2 years ago

Choose the system of equations that matches the following graph:

egoroff_w [7]

B but I am not 100% sure

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Explain how you can use doubles when multiplying with 4 to find 4x8

hoa [83]

When multiplying by 4, you can simply multiply it by 2 twice (prime factorization).
In this example-
4 times 8 = 32
2 times 2 times 8 = 32

Hope this helped!
By the way, I'm getting closer to leveling up, so if you liked my answer, you could reward me with brainliest answer. That'd be great!

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