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sasho [114]
3 years ago
7

What is the length of the altitude of the equilateral triangle below

Mathematics
1 answer:
ale4655 [162]3 years ago
4 0
Using Sine.

Sine = Opposite / Hypotenuse

sin 60° = a / (6√3)                        But sin60° = √3/2

√3/2 = a/(6√3)

Cross multiply

2*a = 6√3 * √3

2a = 6 * √(3*3)

2a = 6*3

a = 6*3/2

a = 3*3 = 9

Option E.

Hope this helps.
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Someone please help me solve this I forgot how to do this type of problem???
Yuliya22 [10]
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6 0
3 years ago
A $65 meal is put on the table. The couple plans on leaving an 18% tip. How much should be left altogether?
elena-14-01-66 [18.8K]

Answer:

76.70

Step-by-step explanation:

8 0
3 years ago
What percent of 84 is 21
dlinn [17]
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6 0
3 years ago
Read 2 more answers
One postive interger is 5 less than another. The product of the two intergerd id 24. What are the intergers?
Nesterboy [21]
Your function will be 24=X+(Y+5)

to solve you subtract 5 from each side giving you 19=X+Y now you divide the 19 by 2 so you figure out the base integers giving you 9.5

now you add 5 to one of your integers meaning 9.5+5=14.5

so your integers are 9.5 and 14.5

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4 0
3 years ago
Solve the system of equations. <br> 3x-4y=8 <br> 18x-5y=10
ipn [44]

Answer:

y = -2    x = 0

Step-by-step explanation:

1. 3x-4y = 8

2. 18-5y = 10

Multiply equation 1 by 6

3. 18x-24y = 48

Subtract equation 2 from equation 3

4. -19y = 38

        y = 38/-19

        y = -2

Sub y = -2 back into equation 1

      3x-4(-2) = 8

      3x + 8 = 8

      3x = 0

      x = 0/3

      x = 0

7 0
2 years ago
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