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Hitman42 [59]
3 years ago
5

Can someone please help me on this question and show the work if you can?

Mathematics
1 answer:
Studentka2010 [4]3 years ago
6 0

Answer:

it is a 60 30 90 triangle so basically 2y is = x

21² + y² = x²

441 + y² = x²

y = x/2 (2y = x)

441 + x²/4 = x²

4x² = 1764 + x²

3x² = 1764

x = exact is 24.248711306 simplied square root would just be 14√3

2y = 14√3

y = 7√3

exact wouldd be 12.124355653

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Evaluate 6x + 11 when x = 7
nlexa [21]

Answer:

53

Step-by-step explanation:

To evaluate 6x + 11, we must substitute the value of x.

Since we know that x = 7, it is easier to evaluate the expression;

6x + 11

6(7) + 11

Since 6 is outside the parenthesis, we must multiply everything inside the parenthesis by 6;

6(7) + 11

42 + 11

When you add the two numbers you get:

53

4 0
3 years ago
What is the domain of a function?
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melomori [17]

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Step-by-step explanation:

Given : The data for the United States is that out of 1,000 sampled, 470 indicated yes, they felt political news was reported fairly.

According to the given information we have,

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Sample proportion: \hat{p}=\dfrac{470}{1000}=0.47

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6 0
3 years ago
((help? just a bit of help!))
Monica [59]
Find the common denominator of 6 and 4.
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4: 8, 12...

We can use 12 for this example.

5/6 to ?/12.
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13/12. 1 1/12.

I believe you ran out of space or didn't put answer D. I researched this question and concluded that the other choice is 1 and 1/12.

The answer is 1 and 1/12.
5 0
3 years ago
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