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padilas [110]
3 years ago
14

Which expression is equivalent?

Mathematics
1 answer:
ANEK [815]3 years ago
3 0
The equivalent expression is b)
The second one
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THIS IS URGENT I NEED HELP ASAP.(9x 10^-3)^2
joja [24]

(9x 10^-3)^2=\frac{81x^{2}}{1000000}, so d 8.1x10^-6

Evaluate 1/2a^-4b^2 for a =-2 and b=4

\frac{1}{2} (-2)^{-4} *4^{2}\\\\\frac{1}{2} *\frac{1}{(-2)^{4}} *4^{2}\\\\\frac{1}{2} *\frac{1}{2^{4}}*4^{2}\\\\\frac{1}{2} *\frac{1}{16}*4^{2}\\\\\frac{1}{2} *\frac{1}{16}*16=\frac{1}{2}

A number raised to a negative exponent is sometimes negative.

Hope this helps, now you know the answer and how to do it. HAVE A BLESSED AND WONDERFUL DAY! As well as a great Valentines Day! :-)  

- Cutiepatutie ☺❀❤

8 0
3 years ago
Help multiple choice
Softa [21]

Answer:

the first one

Step-by-step explanation:

3 0
3 years ago
Can someone pls help me with this?
Sunny_sXe [5.5K]

Answer:

the answer is d

Step-by-step explanation:

so for one do y-intercept has to be at (0,25) so we can eliminate answer choices B and C

the reason why it is not a is because a is moving out of constant rate of 25 when it needs to be moving at a constant rate like 10 D is the answer because it's moving at a constant rate of 10 and it has a y intercept of (0,25)

3 0
3 years ago
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Find the measure of the missing angle<br><br> Please help me, I’ll give you points
Leno4ka [110]

Answer:

a = 28°

Step-by-step explanation:

62°+a° = 90°

a = 90 - 62

a = 28°

5 0
2 years ago
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What is the mean rainfall for the three towns in January to the nearest centimeter?
Nastasia [14]

Answer:

I think its 3.0

Step-by-step explanation:

5 0
3 years ago
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