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3 years ago

If line ∥ line and ∠2 measures 47°, what is the measure of ∠5?

Mathematics

1 answer:

Alex777 [14]3 years ago

4 0

52• is the correct because you can add the wrong number to your economic system

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If f(x) = 2x2 + 7, find f(-3) =<br> What’s the f(-3)

Allisa [31]

Answer:

replace the x with -3

Step-by-step explanation:

if you ever have f(x) = 'insert equation' and then it says find f('insert number'), you replace what ever variable is after the first 'f' with the number after the second 'f'. hope this helped!

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3 years ago

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Please need help thank you

mel-nik [20]

Perimeter 430
Length 172
172 next
430 last(after the =)

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3 years ago

If x is 5, then 6x = _____.

Amanda [17]

Idk if I’m right but I’m going with 6=30

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3 years ago

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At the beginning of an experiment, a scientist has 356 grams of radioactive goo. After 210 minutes, her sample has decayed to 44

olchik [2.2K]

Answer: $\bold{G(t)=356e^{-0.59413t}}$

<u>Step-by-step explanation:</u>

Use the decay formula: $P=P_oe^{kt}$ where

P is the remaining amount of the sample
P₀ is the original amount of the sample
k is the decay rate
t is the time (in hours)

Given: P = 44.5, P₀ = 356, k = unknown, t = 210 minutes (3.5 hours)

$44.5=356e^{k(3.5)}\\\\\\\dfrac{44.5}{356}=e^{3.5k}\\\\\\0.125=e^{3.5k}\\\\\\ln(0.125)=3.5k\\\\\\\dfrac{ln(0.125)}{3.5}=k\\\\\\-0.59413=k$

Input P₀ = 356 and k = -0.59413 into the decay formula

$\large\boxed{P=356e^{-0.59413t}}$

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3 years ago

Which option does the following expression simplify to?<br> pls help

Natalija [7]

<h2>♪Answer : </h2>

2b^0
= 2(1)
= 2✅

»Option (E.)

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2 years ago