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Zarrin [17]
3 years ago
9

Really really need this answer. Please help!

Mathematics
1 answer:
scZoUnD [109]3 years ago
4 0
Use the cosine function.

cos x = 2/12
cos x = 0.167

use the inverse of cosine:

x = 80.405

The answer is C.

Hope this helps :)
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What is the slope of this line
kifflom [539]

Answer:

3/4

Step-by-step explanation:

We can find the slope from the two points given

m = (y2-y1)/(x2-x1)

   = (1- -2)/(2 - -2)

    = (1+2)/(2+2)

    = 3/4

8 0
4 years ago
4x + 2(x + 8) = -19+ x
Likurg_2 [28]

4x + 2(x + 8) = -19 + x

4x + 2x + 16 = -19 + x

6x + 16 = -19 + x

6x + 35 = x

-5x = 35

x = -7

6 0
3 years ago
Read 2 more answers
What is the difference 1/8-3/10. A. -7/40 B.-3/40 C. 7/40 D. 17/40
mrs_skeptik [129]
The answer is A. -7/40.

1. Make sure the (the denominators) are the same
2. Subtract the  (the numerators). Put the answer over the same denominator.
<span> 3. Simplify the fraction (if needed)
</span>
6 0
3 years ago
A chemist is using 382 milliliters of a solution of acid and water. If 15.4% of the solution is acid, how many milliliters of ac
Elina [12.6K]

Answer:

58.8

Step-by-step explanation:

basic facts:

-15.4% is the same as 15.4/100

- the word 'of' in maths means times

so 15.4% of the 382ml is the same as

382*15.4/100

to do that, you multiply 382 by 15.4 = 5882.8

then you divide that by 100= 58.828

and then you just round that of to 58.8

                                 

8 0
3 years ago
Simplify 3^2 x 2^4 x 3^3 x 2
alex41 [277]
3²×2^4 ×3³×2=
3^5×2^5=
243 × 32 = 7776

3 0
3 years ago
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