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3 years ago

14

GIVING AWAY 50 POINTS!!! PLEASE HELP ME FINISH THIS, I AM ON A TIME LIMIT TO GET THIS DONE!!

1 answer:

Scilla [17]3 years ago

4 0

1. 180 miles in 4 hours
180÷4=45 miles an hour
For the train to travel in 7 hrs
45*7=315
2. =3/4
3. B. II & III

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The function y=−0.25x+0.55 represents the percent y (in decimal form) of battery power remaining x hours after you turn on a lap

AURORKA [14]

Answer: a is 2.2, b is 0.55
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To find the x intercept, put 0 instead of y,
hence,
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3 years ago

Write in standard form: <img src="https://tex.z-dn.net/?f=%28%5Cfrac%7B%5Csqrt%7B2%7D%7D%7B2%7D%20%2B%20%5Cfrac%7B%5Csqrt%7B2%7D

lutik1710 [3]

Answer:

-1

Step-by-step explanation:

$=(\frac{1}{\sqrt{2}}(1+i))^4\\=\frac{1}{4}(1+i)^2(i+i)^2\\=\frac{1}{4}(2i)(2i)\\=i^2\\=-1$

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