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Varvara68 [4.7K]
3 years ago
13

Linear Equations & Linear Systems:Question 5

Mathematics
1 answer:
Andreas93 [3]3 years ago
5 0
(2, -3) is the solution
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What is the product of 2x+ 3 and 4x2 - 5x+ 6?
elena-s [515]

Answer:

8x³ - 25x² - 3x + 18

Step-by-step explanation:

(2x + 3)(4x²- 5x + 6)

multiply 2x by each of the three terms in the second expression to get:

8x³ - 10x² + 12x

now multiply 3 by each of the three terms in the second expression to get:

12x² - 15x + 18

Combine 'like terms': -10x² + (-15x²) = -25x²

Combine 'like terms':  12x + (-15x) = -3x

Put all terms in decreasing exponent order:

8x³ - 25x² - 3x + 18

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(-5, 12). Cosecant is the reciprocal of sine. Since csc theta =13/12, sin theta=12/13. We can narrow down to two angles, one in first quadrant and one in second quadrant. We are also given sec theta=-13/5, so cos theta=-5/13. Thus the angle is in the second quadrant. tan theta=1/cot theta=-12/5, so point (-5, 12) is on the ray.
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One crew can seal a parking lot in 8 hours and another in 10 hours. How long will it take to seal the parking lot if the two cre
Mariana [72]
I want to say 6 but i am only 70% shure

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The equation of line CD is (y−3) = − 2 (x − 4). What is the slope of a line perpendicular to line CD? (4 points) negative 1 over
jonny [76]

Answer:

answer 1/2

Step-by-step explanation:

y-3=-2(x-4)

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y=mx+c

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because it perpendicular It became 1/2

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Use a half-angle identity to find the exact value of tan 105º.
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Answer:

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Step-by-step explanation:

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3 years ago
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