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3 years ago

7

Order of operations with integerscalculate:

="TexFormula1" title="4( - 12 + 6) \div 3" alt="4( - 12 + 6) \div 3" align="absmiddle" class="latex-formula">

1 answer:

iragen [17]3 years ago

4 0

Answer:

-8

Step-by-step explanation:

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A group of 54 college students from a certain liberal arts college were randomly sampled and asked about the number of alcoholic

aliya0001 [1]

Answer:

P-value = 0.4846

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 4.73

Sample mean, $\bar{x}$ = 4.35

Sample size, n = 51

Alpha, α = 0.05

Sample standard deviation, s = 3.88

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 4.73\\H_A: \mu \neq 4.73$

We use Two-tailed z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{4.35 - 4.73}{\frac{3.88}{\sqrt{51}} } = -0.699$

Now, $z_{critical} \text{ at 0.05 level of significance } = \pm 1.96$

We can calculate the p-value with the help of standard normal table.

P-value = 0.4846

Since the p-value is higher than the significance level, we fail to reject the null hypothesis and accept it.

We conclude that this college has same drinking habit as the college students in general.

7 0

4 years ago

Justin recently drove to visit his parents who live 300 miles away. On his way there his average speed was 11 miles per hour fas

Lynna [10]

Answer:

x=1

Step-by-step explanation:

5 0

3 years ago

ANSERR GIVE ME ANSWERS PLS

Zarrin [17]

Answer:

Concept: Mathematics

When you multiply a number by something to the 10 power of something then you move whatever place of the exponential to the right if its positive and left if it's negative.

1.365 × 10^1
You see its positive 1 hence we move one space to the right
Our answer is now 13.65

You keep doing the same thing

1.365 × 10^2
136.5

Lastly

1.365 ×10^3
1365

Rate positively and give 5 stars

4 0

3 years ago

Geometry questions, help ya girl out

coldgirl [10]

Answer:

3. a

4. d

5. a

Step-by-step explanation:

7 0

3 years ago

The dividend is a factor of 60. The divisor is a factor of 18. The quotient is a multiple of 3. Use the numbers to find one poss

Diano4ka-milaya [45]

Answer:

A possible solution is 60/2 = 30

Step-by-step explanation:

The given parameters are;

The dividend is a factor of 60

The divisor is a factor of 18

The quotient is a multiple of 3

The dividend is the amount divided

The dividend is the number that is dividing the dividend

The quotient is the result of the division operation

The given numbers to use are 60, 2, 30, and 18

Therefore one possible solution is 60/2 = 30

The dividend = 60 which is a factor of 60 (60 × 1 = 60)

The divisor = 2 which is a factor of 18 (2 × 9 = 18)

The quotient = 30 which is a multiple of 3 (3 × 10 = 30)

6 0

3 years ago