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AfilCa [17]
3 years ago
9

Please help me ASAP!!! I will give 20 points..... bad answers will be reported

Mathematics
1 answer:
belka [17]3 years ago
3 0
150? I think thats the anwser
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Find the length of side x in the simplest radical form with a rational denominator.
krok68 [10]

Answer:

\sqrt{2}

Step-by-step explanation:

We can use either angle, but I'm going to use the one on the bottom. So, in order to find x, we need to use tangent. One side we know is the adjacent, and the side we don't know is the opposite, therefore we need tangent. Here's the equation:

tan(45)=\frac{x}{\sqrt{2}}

Obviously, we can't have a root in our denominator, so we need to get rid of it somehow. Here's how:

We multiply the denominator of the fraction by \sqrt{2}. \sqrt{2} multiplied by itself is simply 2. Try it! We also want to multiply the numerator by \sqrt{2}, but there isn't really a number we can use with that, so we'll just add it to the side. The equation you have now is:

tan(45)=\frac{x\sqrt{2} }{2}

Let's try to work this out now. Since the denominator is 2, we have to multiply both sides by it to find x.

\frac{x\sqrt{2} }{2*2} =x\sqrt{2}

tan(45)*2=2

We can plug 2 in for the x in the numerator now:

\frac{2\sqrt{2} }{2}

2 and 2 cancel out, so you get 1 in both the numerator and denominator. That's how we get our answer of x=\sqrt{2}

Also, because this is a 45-45-90 triangle, you don't really have to do all that work. If it's a 45-45-90 triangle, both legs should be the same length. :)

7 0
3 years ago
I the revenue for the week is $2000, and labor cost consists of two workers earning $8 per hour who work 40 hours each, what is
MA_775_DIABLO [31]

Revenue = $2000


Labour cost = 40 x 8 = $320


Percentage = 320/2000 x 100 = 16%


Answer: 16%

4 0
3 years ago
You are buying markers for the students in first grade. Each student will get 5 markers. There are 16 students in one class and
Masja [62]
52 markers that you will need to buy.
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3 years ago
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KLA=120x KLM=168x ALM=48. Find x
kakasveta [241]

Answer:

Step-by-st

respond  poorfa

7 0
3 years ago
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What is the value of y?<br> Please enter your answer, as an exact value
Hatshy [7]
Tan (60) = y/ 5
y = tan(60) * 5
and you know tan(60) = √3
so 
y = 5√3

answer
5√3 (exact value)
4 0
3 years ago
Read 2 more answers
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