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Leona [35]
2 years ago
15

Sin 30° = ½ and cos 30° = fB

Mathematics
1 answer:
GenaCL600 [577]2 years ago
7 0

Answer:

True

Step-by-step explanation:

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If the lengths of the legs of a right triangle are 5 and 12, what is the length of the hypotenuse?
kondor19780726 [428]

Answer:

13

Step-by-step explanation:

If we have a right triangle, we can use the Pythagorean theorem to find the hypotenuse

a^2+b^2 = c^2 where a and b are the legs and c is the hypotenuse

5^2 + 12^2 = c^2

25+144= c^2

169 = c^2

Take the square root of each side

sqrt(169) = sqrt(c^2)

13= c

4 0
3 years ago
Read 2 more answers
2 1/5 /10 = x/4, using proportions, solve for x, and explain.
lisov135 [29]

Answer:

x = 22/25

Step-by-step explanation:

Given

2 1/5            x

---------- = -----------

10              4

Using cross products

2 1/5 * 4 = x*10

Change 2 1/5 to an improper fraction

2 1/5 =(5*2+1)/5 = 11/5

11/5 *4 = 10x

44/5 =10x

Multiply each side by 1/10 to isolate x

44/5 *1/10 = 10x * 1/10

44/50 = x

Divide top and bottom by 2

22/25 = x

4 0
3 years ago
The number of girls in a classroom is greater than the number of boys. There are more than 2 girls. Write a system of inequaliti
Mama L [17]

Answer:

x < y > 2

Step-by-step explanation:

Girls is more than boys, so:

y > x

Girls is more than 2, so:

y > 2

So:

x < y > 2

I hope this helps you :)

6 0
3 years ago
Solve 7x − 2(x + 1) = 6x + 14.<br> −12<br> 12<br> −16<br> 16
Vladimir79 [104]
7x-2(x+1)=6x+14
7x-2x-2=6x+14
5x-6x=14+2
-x=16
x=-16
3 0
3 years ago
Read 2 more answers
Please simplify y-4x-(1-6x)+3y+x
andriy [413]

You have to combine like numbers

y-4x-1(1-6x)+3y+x

4y -4x-(1-6x)+x

4y - 4x - 1 + 6x + x

4y + 3x - 1

7 0
4 years ago
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