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stiv31 [10]
3 years ago
5

For the following right triangle, find the side length x. Round your answer to the nearest hundredth.

Mathematics
1 answer:
Ugo [173]3 years ago
8 0

Answer: x=10.25

Step-by-step explanation:

8^{2} +x^{2} =13^{2} \\64+x^{2} =169\\x^{2} =105\\x=\sqrt{105} \\x= 10.25

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What is the rate of change of the line that passes through the points (-3,-4) and (5,10)?
const2013 [10]

Answer:

m=7/4

Step-by-step explanation:

8 0
3 years ago
Find the median of this data set. 3,35,23,37,45,5,49,27,48
Anestetic [448]

Arrange in ascending order:-

3, 5, 23, 27, 35, 37, 45, 48, 49

There are 9  values so the median = middle 5th value

=  35  Answer

6 0
3 years ago
Read 2 more answers
Lim x→π/2 1-sinx/cot^2x<br>any genious help please ​
Simora [160]

Rewrite the limand as

(1 - sin(<em>x</em>)) / cot²(<em>x</em>) = (1 - sin(<em>x</em>)) / (cos²(<em>x</em>) / sin²(<em>x</em>))

… = ((1 - sin(<em>x</em>)) sin²(<em>x</em>)) / cos²(<em>x</em>)

Recall the Pythagorean identity,

sin²(<em>x</em>) + cos²(<em>x</em>) = 1

Then

(1 - sin(<em>x</em>)) / cot²(<em>x</em>) = ((1 - sin(<em>x</em>)) sin²(<em>x</em>)) / (1 - sin²(<em>x</em>))

Factorize the denominator; it's a difference of squares, so

1 - sin²(<em>x</em>) = (1 - sin(<em>x</em>)) (1 + sin(<em>x</em>))

Cancel the common factor of 1 - sin(<em>x</em>) in the numerator and denominator:

(1 - sin(<em>x</em>)) / cot²(<em>x</em>) = sin²(<em>x</em>) / (1 + sin(<em>x</em>))

Now the limand is continuous at <em>x</em> = <em>π</em>/2, so

\displaystyle\lim_{x\to\frac\pi2}\frac{1-\sin(x)}{\cot^2(x)}=\lim_{x\to\frac\pi2}\frac{\sin^2(x)}{1+\sin(x)}=\frac{\sin^2\left(\frac\pi2\right)}{1+\sin\left(\frac\pi2\right)}=\boxed{\frac12}

4 0
3 years ago
Y varies inversely with x. if y = 3 and k (the constant of variation) =33 what is x?
DIA [1.3K]

y = k/x

y = 3 and k = 33

y = k/x

yx = k

x = k/y

x = 33/3

x = 11

4 0
3 years ago
Solve the equation using the distributive property and properties of equality.
Alex
The distributive property:
a(b + c) = ab + ac

2(x - 8) = 68
(2)(x) - (2)(8) = 68
2x - 16 = 68    |+16
2x = 84     |:2
x = 42
Answer: D. 42

7 0
3 years ago
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