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miskamm [114]
3 years ago
5

Multiply (x + 5)(x - 6).

Mathematics
2 answers:
nasty-shy [4]3 years ago
4 0
(x+5)(x-6)

x^2-6x+5x-30

x^2-x-30
Klio2033 [76]3 years ago
4 0
X^2-x-30 what the answer
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Find exact value of cos
mylen [45]
<h3>Answer: Choice B. \frac{\sqrt{91}}{10}</h3>

Work Shown:

\sin^2 \theta + \cos^2 \theta = 1\\\\\left(\frac{3}{10}\right)^2 + \cos^2 \theta = 1\\\\\frac{9}{100} + \cos^2 \theta = 1\\\\\cos^2 \theta = 1 - \frac{9}{100}\\\\\cos^2 \theta = \frac{100}{100}-\frac{9}{100}\\\\\cos^2 \theta = \frac{91}{100}\\\\\cos \theta = \sqrt{\frac{91}{100}} \ \text{ cosine positive in Q1}\\\\\cos \theta = \frac{\sqrt{91}}{\sqrt{100}}\\\\\cos \theta = \frac{\sqrt{91}}{10}\\\\

7 0
3 years ago
Read 2 more answers
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topjm [15]

Answer:

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Step-by-step explanation:

3/4 can be changes to 0.75. SO multiply 4.5 times 0.75 to get your answer

8 0
3 years ago
−5 + (−5r) + 10 Not that hard but I keep getting stuck
djverab [1.8K]
5-5r

-5 and 10 have like terms, so you can add them
they make positive 5
(-5r) is just -5r, and you can't add it to a number without a variable
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5 0
3 years ago
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An escalator lifts people to the second floor of a building 25 feet above the first floor. The escalator rises at a 30 degree an
ch4aika [34]

9514 1404 393

Answer:

  50 ft

Step-by-step explanation:

The side lengths in a 30-60-90 triangle have the ratios 1 : √3 : 2. The longest side is 2 times the length of the shortest side.

In this geometry, that means the length of the escalator is 2 times its height, so is ...

  x = 2(25 ft)

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7 0
3 years ago
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hichkok12 [17]
I wrote it out this time, so I didn't forget any work like last time. LOL

4 0
4 years ago
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