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3 years ago

Simplify. 24÷(–8–(–4)) a. –6 b. –2 c. 2 d. 6

2 answers:

7 0

(by order of operation, you do the parantheses first)

24÷(–8–(–4)) [-8-(-4) = -8+4 = -4)

24÷–4

- 6

The answer is A. -6

klemol [59]3 years ago

6 0

D becuase - ans - ispositive so there u go

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Step-by-step explanation:

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3 years ago

In ΔNOP, the measure of ∠P=90°, the measure of ∠O=17°, and OP = 8.6 feet. Find the length of PN to the nearest tenth of a foot.

SVEN [57.7K]

The length of PN is 2.63 feet

<u>Explanation:</u>

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Given:

∠P=90°,

∠O=17°,

OP = 8.6 feet

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The given triangle is a right angle triangle as one angle is 90°

We know:

$tan \alpha = \frac{perpendicular}{base}$

$tan(17^o) = \frac{PN}{OP} \\\\0.3057 = \frac{PN}{8.6} \\\\PN = 0.3057 X 8.6 feet\\\\PN = 2.63 feet$

Therefore, the length of PN is 2.63 feet

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3 years ago

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Step-by-step explanation:

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3 years ago

What is an equivalent expression to 9(c+5)?

Thepotemich [5.8K]

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3 years ago

Read 2 more answers

What are the exact solutions of x2 + 5x + 1 = 0? (5 points)

Rus_ich [418]

Answer:

$x=\frac{-5\pm\sqrt{21} }{2}$

Step-by-step explanation:

We use the quadratic formula here which says for a quadratic equation $ax^2+bx+c=0$ .

$x= \frac{-b\pm\sqrt{b^2-4ac} }{2a}$

Now in our case

$a=1\\b=5\\c=1$

so we have:

$x=\frac{-5\pm\sqrt{5^2-4(1)(1)} }{2(1)} =\frac{-5\pm\sqrt{21} }{2}$

$\boxed{x=\frac{-5\pm\sqrt{21} }{2} }$

Which are our solutions.

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3 years ago