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3 years ago

Need help with this, thanks.

Mathematics

2 answers:

zloy xaker [14]3 years ago

8 0

13. 39
14. 2(x+4)
15. 24
16. 11(x+5)
17. 6(4x+3y)
18. 8(2x+10y)
19. 5(2x+3)

Hope this helped☺☺

MrRa [10]3 years ago

3 0

I feel good today so I'm just gonna answer this so the other person can get brainliest.

Please don't make me brainliest I want another person to have a happier day today :)

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Differentiate. The answer is supposed to be -3/ sqrt 4-x^2

Margarita [4]

Answer:

Step-by-step explanation:

$g(x)=\cos^{-1} (\frac{x}{2})\\g'(x)= \frac{- 1}{\sqrt{1-(\frac{x}{2})^2}}*\frac{1}{2} \\=\frac{-1}{\sqrt{4-x^2} }$

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3 years ago

I need the answer to this asap, plzz

ira [324]

Answer:

$\mathrm{D.\:}\sqrt{126}$

Step-by-step explanation:

All three triangles in the figure are similar. Therefore, we can set up the following proportion:

$\frac{18}{m}=\frac{m}{7}$

Cross-multiply to solve:

$m^2=18\cdot 7 = 126, \\\\m=\fbox{$\sqrt{126}$}$ .

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3 years ago

Daniel went to play soccer at a quarter to 6. His mom called him to come home for dinner at 20 minutes after 7. How many minutes

Minchanka [31]

Answer:

Daniel played soccer for 95 minutes

Step-by-step explanation:

1) If he started at a quarter to 6 this means he started at 5:45 as a quarter is 15 minutes.

2) If he finished 20 minutes after 7 he ended at 7:20

3) Add 15 minutes to get to 6:00.

4) Since 60 minutes are in an hour, add 60 minutes to get 7:00. This brings our total up to 75 minutes.

5) Add the last 20 minutes to get the total amount of 95 minutes spent playing soccer.

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3 years ago

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kati45 [8]

Answer:

2.5

Step-by-step explanation:

it's the midpoint of XZ

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3 years ago

Read 2 more answers

PLEASE HELP ME FAST! WILL MARK AS BRAINLIEST IF GIVEN GOOD ANSWER

Andreas93 [3]

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