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Mazyrski [523]
3 years ago
7

SOMEONE PLEASE HELP ME I HAVE 10 MINUTES LEFT

Mathematics
2 answers:
kiruha [24]3 years ago
8 0
The answer is 12

because 12/4=3
inna [77]3 years ago
3 0

Answer:

12

Step-by-step explanation:

cross multiply

x =12

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What is −29.9 ÷ 4=
lisabon 2012 [21]

Answer:

b

Step-by-step explanation:

5 0
3 years ago
Find the critical value tc for the confidence level c=0.98 and sample size n=18
Mariulka [41]

Answer step-by-step explanation:

We know that the critical t value for a 98% confidence level for a sample of size n = 18:

Finding degrees of freedom (n-1) = 17

-search the information in table t for 0.98 and find that t = 2.567

6 0
3 years ago
You operate a gaming website, www.mudbeast.net, where users must pay a small fee to log on. When you charged $4 the demand was 5
sertanlavr [38]
A) Demand function

price (x)          demand (D(x))

4                      540

3.50                  810

D - 540          810 - 540
----------- =  -----------------
x - 4               3.50 - 4

D - 540
----------- = - 540
x - 4

D - 540 = - 540(x - 4)

D = -540x + 2160 + 540

D = 2700 - 540x

D(x) = 2700 - 540x

Revenue function, R(x)

R(x) = price * demand = x * D(x)

R(x) = x* (2700 - 540x) = 2700x - 540x^2

b) Profit, P(x)

profit = revenue - cost

P(x) = R(x) - 30

P(x) = [2700x - 540x^2] - 30

P(x) = 2700x - 540x^2 - 30

Largest possible profit => vertex of the parabola

vertex of 2700x - 540x^2 - 30

When you calculate the vertex you find x = 5 /2

=> P(x) = 3345

Answer: you should charge a log-on fee of $2.5 to have the largest profit, which is $3345.




5 0
3 years ago
You are installing a new pre-constructed fence in front of your house. each fence section measures 4 ½ feet wide, and each end w
irga5000 [103]
Since, each side of the fence should have the 1 3/4 feet wide decorative piece, the width of the fence should be subtracted by 2 pieces (1 3/4 feet)
                                 = 26.5 feet
Then, divide the remaining width by 4.5 feet and the answer is 5.88. Thus, approximately 5 pieces of the 4 1/2 feet should be installed. 
4 0
3 years ago
Read 2 more answers
What is the area of the rectangle, in square feet?<br> 29<br> 58<br> 120<br> 180
Fittoniya [83]

Answer:

180

Step-by-step explanation:

Base x Height

So 9 x 20 to get 180

3 0
2 years ago
Read 2 more answers
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