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3 years ago

Can someone please help me with these 2 questions

Mathematics

2 answers:

Andre45 [30]3 years ago

8 0

.7-n because the number is unknown ! so it because n as the variable because the NUMBER is unknown so being that number starts with n replace the word as n !

Arturiano [62]3 years ago

7 0

I can help. what are the qeustions.

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What is the DOMAIN of this graph?

Ksenya-84 [330]

Answer:

Is yellow

Step-by-step explanation:

an open circle for "less than" or "greater than", and a closed circle for "less than or equal to"

6 0

2 years ago

Simplify the expression:

Lelu [443]

$\cfrac{(12-5)^7}{\left((3+4)^2\right)^2}= \cfrac{7^7}{(7^2)^2} =\cfrac{7^7}{7^4}=7^{7-4}=7^3=343$

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2 years ago

B. Write an equation that shows the relationship 64% of

White raven [17]

$0.65 \times y = 40 \\ y = \frac{40}{0.65}$

$.45 \times x = 72 \\ x = \frac{72}{.45} \\ x = 160 \\ 45 \: percent \: of \: 160 \: is \: 72$

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2 years ago

Question 20: Please help what are sin x and cos x?

sweet [91]

Answer:

A is the correct answer.

Step-by-step explanation:

$\tan x = \frac{6}{8} = \frac{opposite \: side \: to \: \angle \: x}{adjacent \: side \: to \: \angle \: x} \\ \\ hypotenuse \\ = \sqrt{ {(opp. \: side)}^{2} + {(adj. \: side)}^{2} } \\ = \sqrt{ {6}^{2} + {8}^{2} } \\ = \sqrt{36 + 64} \\ = \sqrt{100} \\ = 10 \\ \\ \because \sin (x) = \frac{opposite \: side \: to \: \angle \: x}{hypotenuse} \\ \\ \huge{ \red{ \boxed{\therefore \: \sin (x) = \frac{6}{10}}}} \\ \\ \cos (x) = \frac{adjacent \: side \: to \: \angle \: x}{hypotenuse} \\ \\ \huge{ \purple{ \boxed{\therefore \: \cos (x) = \frac{8}{10} }}} \\$

Thus, option A is the correct answer.

8 0

3 years ago

Will award brainlist d+6/−2=5. What is d

Advocard [28]

d+6/-2=5

d-3=5

d=8

hope it helps

5 0

3 years ago