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Serjik [45]
3 years ago
6

Find the lengths of side BC. Give your answer to 3 significant figures.

Mathematics
1 answer:
Alinara [238K]3 years ago
4 0

Step-by-step explanation:

since we are required to find side |BC| and the value of side |AB| is given as 6.3 cm

hence we find the cosine of the given angle...

cos71 = adjacent ÷ hypotenuse

cos71 = |AB| ÷ |BC|

cos 71 = 6.3 ÷ |BC|

|BC| = 6.3 ÷ 0.325

|BC| = 19.4 cm

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Plz help I will thank u and mark u as branilyest
IceJOKER [234]

 number 9 =al you have to do is one and 7 eighths =9 so your sum will be 10 and 7 eighths.

hope this helps;)

MARK ME BRAINLIEST

YOU PROMISED!

8 0
3 years ago
Read 2 more answers
13. Simplify –3√ 2 + 3√ 8 A. 0 B. 3√ 2 C. 9√ 2 D. –3√ 2
valina [46]

Answer:

B. 3√2.

Step-by-step explanation:

  1. -3√2 + 3√4x2
  2. -3√2 + 6√2
  3. 3√2

These are all of the steps to completely, find the correct answer to your question.

Hope this helps!!!

Kyle.

7 0
3 years ago
Shira’s Shoes sold 875,000 pairs of sandals in June, which was 70% of the total number of shoes sold. How many shoes did the com
azamat

Answer:

1250000

Step-by-step explanation:

Let number of the total number of shoes sold be 'y'

y*(70/100)= 875000

70y = 875000*100

y = (875000*100)/70

y = 1250000

3 0
3 years ago
Read 2 more answers
Solve for x.
egoroff_w [7]

∑ Hey, KLPJDP615 ⊃

Answer:

x = 6 or x = -10

Step-by-step explanation:

<u><em>Given:</em></u>

<em>Solve for x.</em>

<em>1 + |2+x|= 9</em>

<em>O x = 4 or x = -8</em>

<em>O x = 7 or X = -11</em>

<em>O x = 5 or x = -9</em>

<em>x = 6 or X = -10 </em>

<u><em>Solve:</em></u>

<em>1 + |2+x|= 9</em>

<em>Subtract 1 from both sides:</em>

<em>1 + |2 +x| -1 = 9-1 </em>

<em>Simplify</em>

<em>|2 + x | = 8</em>

<em>Applying absolute value rule:  If |u| = a, a > 0 then u = a or u = -a</em>

<em>2 + x = -8</em>

<em>2 + x = 8</em>

<u><em>Solving:</em></u>

<em>2 + x = -8</em>

<em>2 - 2 + x = -8 - 2</em>

<em>x = -10</em>

<u><em>Solving:</em></u>

<em>2 + x = 8</em>

<em>2 - 2 + x = 8 - 2</em>

<em>x = 6</em>

<em />

<em>Hence, x = 6 or x = -10</em>

<em />

<u><em>xcookiex12</em></u>

<em>8/26/2022</em>

3 0
2 years ago
Estimate the sum to the nearest whole number <br><br> 29.1 +78.9 + 41.5
lesya692 [45]

I rounded each number to the nearest whole number and added those.

29 + 79 + 42 = 150

If you add the original numbers you would get 149.5, which rounds to 150.

6 0
3 years ago
Read 2 more answers
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