1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sveta [45]
3 years ago
9

I need help with this question please!

Mathematics
2 answers:
storchak [24]3 years ago
7 0

Answer:

x > (c-b)/a

Step-by-step explanation:

ax+b>c

Subtract b from each side

ax+b-b>c-b

ax <c-b

Divide each side by a

ax/a >(c-b)/a

x > (c-b)/a

wlad13 [49]3 years ago
5 0

Answer:

Step-by-step explanation:

You might be interested in
Insert parenthesis () to make the following problem true: 3+6-2x4=19
tia_tia [17]

Answer:

3+(6-2)*4=19

Step-by-step explanation:

Due to PEMDAS, it would first be required to do "6-2", which is 4.

Then, the 4 in the parenthesis is multiplied by the 4 on the outside, making 16.

Finally, 3 would be added to 16, making 19.

5 0
3 years ago
You work in the HR department at a large franchise. you want to test whether you have set your employee monthly allowances corre
ra1l [238]

Answer:

1) Null hypothesis:\mu \leq 500  

Alternative hypothesis:\mu > 500  

z=\frac{640-500}{\frac{150}{\sqrt{40}}}=5.90  

For this case since we are conducting a right tailed test we need to find a critical value in the normal standard distribution who accumulates 0.01 of the area in the right and we got:

z_{crit}= 2.33

For this case we see that the calculated value is higher than the critical value

Since the calculated value is higher than the critical value we have enugh evidence to reject the null hypothesis at 1% of significance level

2) Since is a right tailed test the p value would be:  

p_v =P(z>5.90)=1.82x10^{-9}  

If we compare the p value and the significance level given \alpha=0.01 we see that p_v so we can conclude that we have enough evidence to reject the null hypothesis, same conclusion for part 1

Step-by-step explanation:

Part 1

Data given

\bar X=640 represent the sample mean

\sigma=150 represent the population standard deviation

n=40 sample size  

\mu_o =500 represent the value that we want to test  

\alpha=0.01 represent the significance level for the hypothesis test.  

z would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

Step1:State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the true mean is higher than 500, the system of hypothesis would be:  

Null hypothesis:\mu \leq 500  

Alternative hypothesis:\mu > 500  

Step 2: Calculate the statistic

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

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

z=\frac{640-500}{\frac{150}{\sqrt{40}}}=5.90  

Step 3: Calculate the critical value

For this case since we are conducting a right tailed test we need to find a critical value in the normal standard distribution who accumulates 0.01 of the area in the right and we got:

z_{crit}= 2.33

Step 4: Compare the statistic with the critical value

For this case we see that the calculated value is higher than the critical value

Step 5: Decision

Since the calculated value is higher than the critical value we have enugh evidence to reject the null hypothesis at 1% of significance level

Part 2

P-value  

Since is a right tailed test the p value would be:  

p_v =P(z>5.90)=1.82x10^{-9}  

If we compare the p value and the significance level given \alpha=0.01 we see that p_v so we can conclude that we have enough evidence to reject the null hypothesis, same conclusion for part 1

7 0
3 years ago
What is the estimate of 256+321
Sati [7]
The estimate would be 2+3 5+2 and 6+1 so 577 you can also just round and do 250 +300= 550 +20=570
6 0
3 years ago
Read 2 more answers
How to solve the distributive property to express 27+60
Verizon [17]
(27)+(60)
is the anwser
5 0
3 years ago
Nicki dashed up the shore and into the forest, not stopping
romanna [79]

Answer:

C

Step-by-step explanation:

the answer is not revealed

5 0
3 years ago
Other questions:
  • -9 – 9u = -3u + 9 last one for today
    6·2 answers
  • Help Math All the Points i have
    8·1 answer
  • Shelia does quality control for a company that manufactures lawn mower parts. On any given day, she finds the probability distri
    7·2 answers
  • The shortest route from London to Liverpool is 210 miles. A lorry is expected to take 3.5 hours to travel this route. The lorry
    7·1 answer
  • A pack of gum costs $2.95. If it holds 12 sticks of gum, about how much would one individual stick of gum cost?
    12·2 answers
  • X + y = 3<br> 4x + 4y = -12
    12·1 answer
  • Write the set using the roster method A={a|a an even number and 15&lt; a&lt; =25}
    11·1 answer
  • WILL GIVE BRAINLIEST! NEED HELP! THANK YOU
    10·1 answer
  • Write an equivalent function in the form V(t)=ab^t
    12·1 answer
  • Solve for x:<br> -7x – 8 = -10x + 4
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!