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Lynna [10]
2 years ago
15

THERE ARE 4 QUESTIONS BELOW!

Mathematics
1 answer:
Whitepunk [10]2 years ago
5 0
1. $240 in commission. If you add the weekly salary, it would be $635.

2. 35%

3. $8.30

4. $57.96

5. Sales tax on an item is a percent of increase. A discount on an item is a percent decrease. A tip on a bill is a percent increase.
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Need help! Law of cosines...find b round to the nearest tenth please
dusya [7]
ANSWER

B = 27.8 \degree

EXPLANATION

The law of cosine is given by the formula:

{b}^{2} = {a}^{2} + {c}^{2} - 2bc \cos(B)

From the diagram,

a=17, b=8, c=16

We substitute the given values into the formula to obtain:

{8}^{2} = {17}^{2} + {16}^{2} - 2(17)(16)\cos(B)

64 = 289+ 256- 544\cos(B)


64 = 545- 544\cos(B)


64 - 545 = - 544\cos(B)

- 481 = - 544\cos(B)

\frac{ - 481}{ - 544} = \cos(B)

cos(B) = 0.88419

B = \cos ^{ - 1} (0.88419)

B = 27.8 \degree
3 0
3 years ago
Read 2 more answers
a math class has a test today there are 30 problems on the test the test has two types of problems multiple choice problems and
Misha Larkins [42]
Fhstdyfhdhdhhdhdhdjdhdjd is the day I wanna play fortnite
6 0
3 years ago
Need help with my math simplify
nlexa [21]

2+42/-2-5(-3)  Multiply -5 and -3.

2+42/-2+15 Now, add the non fraction numbers. (2 and 15)

17+42/-2 Here, you want to reduce the fraction if you can, and yes, you can. Find the divisible number that is the lowest one that both can be evenly divided by. For this problem, it’s -2.

17-21. And from here, its easy. Just a simple subtraction problem.

-4 should be the correct answer.

3 0
3 years ago
Write an explicit formula for an,<br> the nth<br> term of the sequence 31, 37,43, ....
Alchen [17]

Answer:

The formula for the nth term of this sequence is: 31 + (n-1)X6

Step-by-step explanation:

This is an arithmetic sequence (ie. each term is the last term with a fixed value added to it).

T1 =31

T2 = 37 = T1 + 6 = 31 + 6

T3 = 43 = T2 + 6 = 31 + 6 + 6 = 31 + 6X2

…

In general, the nth term is 31 + 6(n-1)

6 0
3 years ago
a used bookstore will trade two of its books for three of us and they'll brings and 18 books to trade how many books can she get
Gemiola [76]
18/3=6
6x2=12
She can get 12 books from the store
4 0
3 years ago
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