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xenn [34]
2 years ago
8

I need help beacuse is $9.86 x 8 is 78.88 right ???

Mathematics
2 answers:
ahrayia [7]2 years ago
6 0
Yep you did it right!
katen-ka-za [31]2 years ago
6 0
Mhm, 9.86 x 8 = 78.88, you can also check on a calculator
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Help me with this question please
Gala2k [10]
The answer is C
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3 0
4 years ago
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Star Cellular has several phone plans to choose from. The $39 monthly service plan allows 500 anytime minutes and charges 40 cen
dlinn [17]
A) $59.00

50 x .40 + 29 = 59
4 0
3 years ago
Enter a range of value for x.
zubka84 [21]

Answer:

-2 < x < 35

Step-by-step explanation:

We have that the larger side has a larger opposite angle and the smaller sides and a smaller opposite angle.

The opposite angle of the 14 unit side is 37 °.

The opposite angle of the 13-unit side is (x + 2) °.

Since 13 <14, it would be:

x + 2 <37

we subtract 2 on both sides

x <35

The value of x must be less than 35.

Now, to form a triangle, the angle must be greater than 0.

x + 2> 0

we subtract 2 on both sides

x> -2

The value of x must be greater than - 2.

Therefore the answer would be:

-2 <x <35

8 0
3 years ago
In a sample of 42 water specimens taken from a construction site, 26 contained detectable levels of lead. Construct 90% confiden
hram777 [196]

Answer:

(0.4958, 0.7422)

Step-by-step explanation:

Let p be the true proportion of water specimens that contain detectable levels of lead. The point estimate for p is \hat{p}=26/42=0.6190. The estimated standard deviation is given by \sqrt{\hat{p}(1-\hat{p})/n}=\sqrt{(0.6190)(1-0.6190)/42}=0.0749. Because we have a large sample, the 90% confidence interval for p is given by 0.6190\pm z_{0.05}0.0749 where z_{0.05}=1.6448 is the value that satisfies that above this and under the standard normal density there is an area of 0.05. So, the confidence interval is 0.6190\pm (1.6448)(0.0749), i.e., (0.4958, 0.7422).

5 0
3 years ago
How do you answer this question 3/4b +10=20
noname [10]
1) move the 10 over
So it becomes
3/4b = 10
2) multiply everything by 4 to get rid of the denominator
2b = 40
3) divide both sides by 2
b = 20
7 0
3 years ago
Read 2 more answers
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