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nika2105 [10]
3 years ago
7

In a 30°-60°-90° triangle, the length of the hypotenuse is 30. Find the length of the shorter leg.

Mathematics
1 answer:
Aloiza [94]3 years ago
3 0
Short leg = 30 x cos(60) = 15
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jamal completed his math homework in 2/3 of an hour and his reading homework in 3/5 of an hour. How much time did it take him to
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Answer:

Step-by-step explanation: We have to add how much time it took him to do all of his homework. To do this, we have to add 2/3 and 3/5.

First, we have to find a LCM between 3 and 5.

The LCM between those numbers are 15.

Next we find out what number to multiply 3 by to get 15, we multiply it by 5.

2 * 5 = 10

3 * 5 = 15

Next we find out what number to multiply 5 by to get 15, we multiply it by 3.

3 * 3 = 9

5 * 3 = 15

10/15+9/15=19/15

We are left off with 1 4/15

So it took him 1 hour and 4/15 minutes to do his homework.

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Answer:

They are 260 miles apart. No it would not be possible.

Step-by-step explanation:

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8 0
3 years ago
List the angles in triangle QRS from smallest to largest.
schepotkina [342]

Answer:

angle R

Step-by-step explanation:

To solve this we will use cosine rule

Cosine rule

cos(A) = \frac{b^{2}+c^{2}-a^{2}}{2bc}

suppose,

q = 6.25

s = 11.04

r = 13.19

angleQ = cos^{-1}(\frac{13.19^{2}+11.04^{2}-6.52^{2}}{2(13.19)(11.04)})

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angleR = cos^{-1}(\frac{6.52^{2}+11.04^{2}-13.19^{2}}{2(6.52)(11.04)})

            = 93.82

angleS =  cos^{-1}(\frac{6.52^{2}+13.19^{2}-11.04^{2}}{2(6.52)(13.19)})

            = 56.63

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Evaluate -8a - b if a = 10 and b = 6
ss7ja [257]
The answer is -86 .....
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3 years ago
10 apples for $3.50. How much is the cost per apple?
Tomtit [17]

Answer:35 cents per apple.

Step-by-step explanation:

3.50/10=0.35

5 0
3 years ago
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