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cestrela7 [59]
3 years ago
7

Hi! can you please help me and show me how you got your answer? thank you!

Mathematics
1 answer:
Kamila [148]3 years ago
5 0

Answer:

Step-by-step explanation:multipy -4x and 4 by 2 were the 8x and the -8x would cancel then add and bring down answer of x=15

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Find the value of x. <br><br><br><br><br><br><br> 60o<br><br> 79o<br><br> 70o<br><br> 47o
LekaFEV [45]
180-2(55)-x=0
180-110-x=0
70-x=0
-x=-70
x=70°
3 0
3 years ago
Suppose we have a right triangle with legs of length a and b and hypotenuse of length c. Suppose b=3 and c=5. Then a= , For the
ANTONII [103]

Answer:

Length of right-angle  triangle 'a' = 4

b)

<u><em></em></u>sin(A) = \frac{opposite side}{Hypotenuse} = \frac{a}{c} = \frac{4}{5}<u><em></em></u>

<u><em></em></u>cos(A) = \frac{Adjacent side}{Hypotenuse} = \frac{b}{c} = \frac{3}{5}<u><em></em></u>

<u><em></em></u>tan(A) = \frac{opposite side}{Adjacent side} = \frac{a}{b} = \frac{4}{3}<u><em></em></u>

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given  b = 3 and hypotenuse c = 5

Given ΔABC  is a right angle triangle

By using pythagoras theorem

        c² = a² + b²

  ⇒ a² = c² - b²

 ⇒  a² = 5²-3²

          =25 - 9

      a² = 16

⇒   a = √16 = 4

The sides of right angle triangle  a = 4 ,b = 3 and c = 5

<u><em>Step(ii):-</em></u>

<u><em></em></u>sin(A) = \frac{opposite side}{Hypotenuse} = \frac{a}{c} = \frac{4}{5}<u><em></em></u>

<u><em></em></u>cos(A) = \frac{Adjacent side}{Hypotenuse} = \frac{b}{c} = \frac{3}{5}<u><em></em></u>

<u><em></em></u>tan(A) = \frac{opposite side}{Adjacent side} = \frac{a}{b} = \frac{4}{3}<u><em></em></u>

7 0
2 years ago
8. How long will it take Seb to run 4000 m at an average speed of 5 m/s?
meriva

Answer:

Seb will take 13 minutes and 20 seconds  to run 4000 m at an average speed of 5 m/s

Step-by-step explanation:

time taken = distance / speed

time taken = 4000/5

time taken = 800 seconds

time taken = 13 minutes and 20 seconds

5 0
2 years ago
Read 2 more answers
51 is 17% of which number?
jeyben [28]

Answer:

300

Step-by-step explanation:

17/100x=51

x=300

17/100(300)=51

7 0
3 years ago
Read 2 more answers
What is 5/6 plus 7/8?
irina [24]

Answer:

1  17/24

Step-by-step explanation:

8 0
3 years ago
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