3 years ago

Which expression is equivalent to 15 – 5x?

Mathematics

1 answer:

ahrayia [7]3 years ago

3 0

Answer:

15 - 5x = 5 · 3 - 5 · x = 5(3 - x)

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Picture attached below

jekas [21]

Answer:

D. sin J = Cos L

Step-by-step explanation:

LK = √219² - 178² = 127.58

sin J = <u>LK/LJ</u> =127.58/219 = 0.58

Cos L = <u>Lk/LJ</u> = 0.58

sin L = 178/219 = 0.81

Cos J = 178/219 = 0.81

Tan J = 127.58/178 = 0.72

tan L = 178/127.58 = 1.40

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3 years ago

Which statement is correct about triangle 1 and 2? please help:)

Gekata [30.6K]

The answer to this is answer b I hope that helps

8 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Csqrt%7B45%7D%20%2B%5Csqrt%7B54%7D%20%2B%5Csqrt%7B56%7D%20%3D" id="TexFormula1" title="\sqrt

Artyom0805 [142]

$\sqrt{45}+\sqrt{54}+\sqrt{56}$

$\sqrt{45} = 3\sqrt{5}$

$\sqrt{54} = 3\sqrt{6}$

$\sqrt{56} = 2\sqrt{14}$

<em>so it's equal to:</em>

$=3\sqrt{5}+3\sqrt{6}+2\sqrt{14}$

<h3><em>Hope I helped you!</em></h3><h3><em>Success!</em></h3>

<em>by a random romanian guy</em>

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3 years ago

Read 2 more answers

Choose the mixed number for this decimal<br> 2.1

Sonja [21]

Answer:

21/10

Step-by-step explanation:

you"ll have to take my word for it

6 0

4 years ago

Read 2 more answers

simplify the expression write your answer as a complex number. three square root of 16 plus square root of - 9

german

Answer:

$\large\boxed{3\sqrt{16}+\sqrt{-9}=12+3i}$

Step-by-step explanation:

$3\sqrt{16}+\sqrt{-9}\\\\\sqrt{16}=4\ \text{because}\ 4^2=16\\\\\sqrt{-9}=\sqrt{(9)(-1)}\qquad\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\=\sqrt9\cdot\sqrt{-1}=(**)\\\sqrt9=3\ \text{because}\ 3^2=9\\\sqrt{-1}=i\\(**)=3i\\\\3\sqrt{16}+\sqrt{-9}=(3)(4)+3i=12+3i$

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4 years ago