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Sophie [7]
3 years ago
7

4^0.5= Choices -2 1/2 2

Mathematics
2 answers:
Viefleur [7K]3 years ago
5 0
The answer is 2

Plug in on calculator 4^0.5 equals 2
IgorC [24]3 years ago
4 0

Answer:

2

Step-by-step explanation:

4=2^2

\left(2^2\right)^{\frac{1}{2}}

\left(2^2\right)^{\frac{1}{2}}=2^{2\cdot \frac{1}{2}}

2^{2\cdot \frac{1}{2}}=2

2

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e 400 trials in which the assistant maintained a neutral expression, the driver stopped in 229 out of the 400 trials. Find a 95%
Fittoniya [83]

Answer:

Step-by-step explanation:

n = 400

Proportion p = 229/400= 0.5725

For 95% confidence interval we use Z value as 1.96

Std error = 0.025

margin of error = 1.96*0.025

Confidence interval 95% = 0.5725±Margin of error

= (0.524, 0.621)

b) When smiled x becomes 277

p = 0.6925

Std error = 0.023

Margin of error= 1.96*0.023

Confidence interval = (0.647, 0.738)

Smiling increases the chances of stopping since mean and conidence interval bounds are showing increasing trend.

6 0
3 years ago
What is the slope of this graph?<br> a. 4<br> b. -4<br> c. -1/4 <br> d. 1/4
kykrilka [37]

The answer is -4 i just did the test

6 0
3 years ago
Target buys video games for $25/game. They markup the price by 75%. How much do
AVprozaik [17]

9514 1404 393

Answer:

  $43.75

Step-by-step explanation:

The amount of the markup is ...

  $25 × 0.75 = $18.75

The final cost to the customer is ...

  selling price = purchase price + markup

  = $25.00 + 18.75 = $43.75

They charge customers $43.75 for a videogame.

3 0
3 years ago
What is 9k + 1 = ─9 + 7k solved for the variable???
m_a_m_a [10]

Answer:

k = -5

Step-by-step explanation:

The variable is k

9k + 1 = -9 + 7k

-7k        -1

2k = -10

2k/2  -10/2

k = -5

:)

4 0
3 years ago
Divide recently purchased a pair of running shoes he got a 20% discount which save them nine dollars what was the original price
andrezito [222]
The original price of the running shoes was $45. Divide got a 20% discount on them and saved $9, and had to pay only pay $36.

- Lyla
7 0
3 years ago
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