2 years ago

Help plz and check just to make sue what is this

Mathematics

1 answer:

padilas [110]2 years ago

3 0

use cross products to solve

5* (n-9) = 8*n

distribute

5n-45 = 8n

subtract 5n from both sides

-45 = 3n

divide both sides by 3

-15 = n

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What is 36 times 34 times pi?

IgorLugansk [536]

36 * 34 * 3.14
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3 years ago

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How is -27 a rational number

gayaneshka [121]

Answer:

see explanation

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Read 2 more answers

2√72 + 5√242 what is the answer for this question please can u tell me the right answer

Radda [10]

Answer:

67 $\sqrt{2}$

Step-by-step explanation:

Assuming you require to simplify the expression.

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

Simplifying the radicals

$\sqrt{72}$ = $\sqrt{36(2)}$ = $\sqrt{36}$ × $\sqrt{2}$ = 6 $\sqrt{2}$

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Then

2 $\sqrt{72}$ + 5 $\sqrt{242}$

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6 0

3 years ago

Please help! Thank you so much!

igor_vitrenko [27]

Angle W:

180 = 90 + 57 + W

180 = 147 + W

W = 33 degrees

Using trigonometry functions to find the side lengths. (SOH CAH TOA)

Side XZ:

cos(57) = XZ / 18

XZ = cos(57) x 18

XZ = 9.8 units

Side XW:

sin(57) = XW / 18

XW = sin(57) x 18

XW = 15.1 units

Hope this helps!! :)

4 0

3 years ago