Ask question

Ask question

All categories

3 years ago

8

HELP NEEDED! Evaluate: 8 + -12 - -12/2

2 answers:

hoa [83]3 years ago

5 0

Answer:

2

Step-by-step explanation:

svp [43]3 years ago

3 0

Answer:

2

Step-by-step explanation:

because if 8+-12= about-4 so if you have a negative number plus a positive it equals a negative number then you have -4 minus -12 equals a positive is 8 because if its negative and negative it equals a positive number then you have 8/2 and it equals 4 because that slash is a divided sign all together it is 8+-12-(-12)/2=2

You might be interested in

The Department of Transportation would like to test the hypothesis that the average age of cars on the road is less than 12 year

puteri [66]

Answer:

$z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29$

Step-by-step explanation:

information given

$\bar X=10.6$ represent the sample mean

$\sigma=4.1$ represent the population standard deviation

$n=45$ sample size

$\mu_o =12$ represent the value that we want to test

$\alpha=0.05$ represent the significance level for the hypothesis test.

z would represent the statistic

$p_v$ represent the p value for the test

Hypothesis to test

We want to test if the true mean is less than 12, the system of hypothesis would be:

Null hypothesis: $\mu \geq 10$

Alternative hypothesis: $\mu < 10$

The statistic is given by:

$z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}$ (1)

Replacing the info given we got:

We can replace in formula (1) the info given like this:

$z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29$

8 0

4 years ago

A school puts on a play. The play costs $1,150 in expenses. The students charge $5.25 for tickets. There will be one performance

tiny-mole [99]

Answer:

The equation to find profit would be y=5.25x-1,150

I'm not sure of what exactly you are looking for, If you need something else let me know and I'll be happy to help!

Step-by-step explanation:

7 0

3 years ago

PLS HELP graphing exponents thing

Mrrafil [7]

Answer:

Jen Clark can you turn on car Rebecca tatti I miss you baby Palm be my friend

4 0

3 years ago

Can anyone tell me if these answers are right?

k0ka [10]

Answer:

Ummm. 1 & 3 look good double check 2

Step-by-step explanation:

HELPFUL?

8 0

3 years ago

Natalie is a salesperson who sells computers at an electronics store. She makes a base pay amount each day and then is paid a co

In-s [12.5K]

Answer:

9,500

Step-by-step explanation:

4 0

3 years ago