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3 years ago

Very simple yes no questions

Mathematics

1 answer:

earnstyle [38]3 years ago

5 0

Answer:

No for 1

yes for 2

Step-by-step explanation:

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Help please; I need the right answer

Ad libitum [116K]

Answer:

Step-by-step explanation:

$\cos x+\sqrt{2}=-\cos x \\ 2\cos x = -\sqrt 2 \\ \cos x = -\dfrac{\sqrt 2}{2}\\ \\ \Rightarrow x = \pm \arccos\Big(-\dfrac{\sqrt 2}{2}\Big)+2k\pi,\quad x\in \mathbb{Z}\\ \Rightarrow x =\pm\dfrac{3\pi}{4}+2k\pi\\ \\ \\k = -1 \Rightarrow x < 0\\\\ k=0 \Rightarrow x 2\pi$

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4 years ago

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Explain how you could calculate the surface area of a square pyramid.

Damm [24]

Find the area of the base of the pyramid, then find the area of each side then add the areas. hope this help :)

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3 years ago

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L –3 | A. 3 B. -3 C. 0.30 D. 30

Vesnalui [34]

Answer:

| -3 | = 3

Step-by-step explanation:

minus is removed

7 0

3 years ago

How do I solve 1 1/2c = 6

quester [9]

$1 \frac{1}{2} c = 6 \\ \\ \frac{2 + 1}{2} c = 6 \ / \ convert \ to \ improper \ fraction \\ \\ \frac{3}{2} c = 6 \ / \ simplify \\ \\ \frac{3c}{2} = 6 \ / \ simplify \\ \\ 3c = 6 \times 2 \ / \ multiply \ each \ side \ by \ 2 \\ \\ 3c = 12 \ / \ simplify \\ \\ c = \frac{12}{3} \ / \ divide \ each \ side \ by \ 3 \\ \\ c = 4 \ / \ simplify \\ \\$

So, your answer to this problem is c = 4.

6 0

3 years ago

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87.5 - 23.4 * O 64.1 O 110.9 054.1

Mashcka [7]

Answer:

Hey mate......

Step-by-step explanation:

This is ur answer....

<h2>1st Option : 64.1</h2>

Hope it helps!

Brainliest pls!

Follow me! ;)

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3 years ago