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2 years ago

Find the value of x. A. 7 B. 9 C. 11 D. 12

Mathematics

2 answers:

nlexa [21]2 years ago

8 0

Your answer should be

D. 12

Arisa [49]2 years ago

6 0

Use the law of cosines to solve for angle A. Plug your known side length values into the equation a^2 = b^2 + c^2 – 2bc cos A.

Then use the law of sines to find angle B. (Sin A/a = Sin B/b = Sin C/c).

Because the two red angles within B are congruent, divide your angle measure in half.

From there, do the law of sines to solve for x. Good luck!

I hopes this helps

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Jenna is writing a check to her vehicle registration office for $100.42. How should she pull out this amount in the "written amo

Angelina_Jolie [31]

Answer:

100 42/100

Step-by-step explanation: you put the change as a fraction

3 0

2 years ago

What needs to be done to 21/10 to complete the problem? If you can, try to fix it yourself.<br><br>

Olin [163]

Answer:

This is an improper fraction so we need to make it a mix fraction.

Step-by-step explanation:

21/10 = 10/10+10/10+1/10

10/10=1

So your final answer will be $2\frac{1}{10}$

8 0

2 years ago

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Andre45 [30]

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6 0

1 year ago

The functions q and r are defined as follows.<br> HELP PLEASE

dusya [7]

Answer:

-22

Step-by-step explanation:

First do r(3) by replacing x with 3 in r:

2*3^2 + 2 = 2*9 + 2 = 18 + 2 = 20

Then replace r(3) with 20 to do q(20):

-20-2 = -22

7 0

2 years ago

Evaluate.

aleksandrvk [35]

Answer: -2 4/15

Step-by-step explanation: To properly subtract, we need to find a common denominator. We can list the multiples of 3 and 5 to find the common denominator:

3: 3, 6, 9, 12, 15

5: 5, 10, 15

The first common multiple we see is 15.

Calculation:

3 · 3 = 9

9 + 1 = 10

3 1/3 = 10/3

5 x 5 = 25

25 + 3 = 28

-5 3/5 = -28/5

Now to convert into fifteen as the denominator:

-28/5 = -28 x 3/5 x 3 = -84/15

10/3 = 10 x 5/3 x 5 = 50/15

Now to subtract accordingly:

50/15 - 84/15 = -34/15

Final answer: -34/15 (can be reduced to -2 4/15).

3 0

1 year ago