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sammy [17]
3 years ago
12

Simplify 5(1+3)^2. I need Help

Mathematics
1 answer:
Inessa [10]3 years ago
3 0

Answer:

80

Step-by-step explanation:

5(1+3)^2

Due to PENDAS, you will first need to do the root

5(4)^2

5(16)

80

Hope it helped!

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In a​ study, researchers wanted to measure the effect of alcohol on the hippocampal​ region, the portion of the brain responsibl
Anton [14]

Answer:

We do not reject the Null Hypothesis

Step-by-step explanation:

From the question we are told that:

Sample size n=23

Population mean \mu=9.02cm^3

Sample mean \=x=8.16

Standard deviation \sigma=0.7cm^3

Significance level \alpha =0.01

Generally the Null and and alternative Hypothesis are as follows

 H_0:\mu=9.02cm^3

 H_a:\mu

Therefore t critical Value is

 t\ critical\ Value=(\alpha,df)

 t\ critical\ Value=(0.01,22)

Where

  df=n-1\\\\df=23-1=>22

Therefore

From t Table

 t value=-2.8

Generally the equation for Z Critical is mathematically given by

 t=\frac{\=x-\mu}{\frac{\sigma}{\sqrt{n} } }

 t=\frac{8.16-9.02}{\frac{0.7}{\sqrt{23} } }

 t=-5.89

Therefore

Since the t test statistics is greater than the Critical value

Hence,we do not reject the Null Hypothesis

4 0
3 years ago
8. June Wilson's account had a beginning balance of $288.43. She made a deposit
Naily [24]

Answer:616

Step-by-step explanation:

6 0
3 years ago
7^14 ÷ 7^2<br> I-ready btw
Lyrx [107]

Answer:

7^12

Step-by-step explanation:

7^14

-----------

7^2

When we divide with the same base, we subtract the exponents

7^(14-2)

7^12

5 0
3 years ago
Read 2 more answers
If BE=9cm, find GE<br> What is the answer
Sladkaya [172]

Answer:

GE = 3 cm

Step-by-step explanation:

BE = 9 cm

Since G is the centroid, therefore:

GE = \frac{1}{3}(BE) => Centroid theorem

Plug in the value

GE = \frac{1}{3}(9)

GE = 3 cm

6 0
3 years ago
When 4 times the number X is added to 12, the result is 8. What number results when two times x is that at 7?
kow [346]
I think you worded that a little wrong
8 0
4 years ago
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