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Brrunno [24]
2 years ago
15

Please help me which expresión is equivalent 2^2 times 2/2^4 pls don’t tell me to go to a website just show me how to do it or t

ell me if it’s a ,b , c or d

Mathematics
1 answer:
NikAS [45]2 years ago
7 0

Answer:

b

2 to the power of negative 1

Step-by-step explanation:

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Solve and reduce to lowest terms: x =<br> Please don't make it to long
dusya [7]

Answer:

2/11

Step-by-step explanation:

6 = 2 x 3

6/11 x 1/3

= ( 6 x 1 )/( 11 x 3 )

= ( 2 x 3 x 1 )/( 11 x 3 )

Cancel 3 in both numerator and denominator.

= ( 2 x 1 )/( 11 )

= 2/11

4 0
2 years ago
What is the answer to this -3m=-9+-2m
ikadub [295]
1. <span>Simplify -9 + -2m to -9 - 2m

-3m = -9 - 2m

2. </span><span>Add </span>2m <span>to both sides

-3m + 2m = -9

3. </span><span>Simplify -3m + 2m to -m

-m = -9

4. </span><span>Multiply both sides by </span><span><span>−<span>1

m = 9

Done! :) our answer is m = 9</span></span></span>
5 0
3 years ago
A survey reported in Time magazine included the question ‘‘Do you favor a federal law requiring a 15 day waiting period to purch
galben [10]

Answer:

Step-by-step explanation:

Confidence interval for the difference in the two proportions is written as

Difference in sample proportions ± margin of error

Sample proportion, p= x/n

Where x = number of success

n = number of samples

For the men,

x = 318

n1 = 520

p1 = 318/520 = 0.61

For the women

x = 379

n2 = 460

p2 = 379/460 = 0.82

Margin of error = z√[p1(1 - p1)/n1 + p2(1 - p2)/n2]

To determine the z score, we subtract the confidence level from 100% to get α

α = 1 - 0.95 = 0.05

α/2 = 0.05/2 = 0.025

This is the area in each tail. Since we want the area in the middle, it becomes

1 - 0.025 = 0.975

The z score corresponding to the area on the z table is 1.96. Thus, confidence level of 95% is 1.96

Margin of error = 1.96 × √[0.61(1 - 0.61)/520 + 0.82(1 - 0.82)/460]

= 1.96 × √0.0004575 + 0.00032086957)

= 0.055

Confidence interval = 0.61 - 0.82 ± 0.055

= - 0.21 ± 0.055

3 0
3 years ago
Find the area!!!!!!!!!!
Helen [10]

Answer:

87.5

Step-by-step explanation:

Area = 11+7

             ---  x 7

              2

OR

Area = a+b/2 x h

4 0
3 years ago
I NEED THIS REALLY QUICK ILL GIVE BRAINLIEST AND 5 STARS PLEASE AWNSER
Elan Coil [88]
The answers is 14 if you follow the equation i just did it on a calculator (attached)
5 0
3 years ago
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