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Debora [2.8K]
3 years ago
11

Find X Simplify answer type exact number or use radicals as needed

Mathematics
1 answer:
satela [25.4K]3 years ago
5 0
On a right triangle, to find one missing side you can use this equation
a^2 + b^2 = c^2

a and b are the sides next to the right angle, and c is the hypotenuse (side not connected to right angle).

You first need to find the length of the dotted line before finding x. This is because to be able to use the above formula, you have to know the length of two out of three of the sides.

To solve the length of the dotted line, note that it also makes a triangle with the 5 unit line and the 5 √5 unit line. You can plug these numbers into the formula.
(5)^2+b^2=(5 √5)^2
25+b^2=125
b^2=100
b=10

Now that you know the length of the dotted line is 10 units, you can now solve for x

(20)^2+(10)^2=x^2
400+100=x^2
500=x^2
x= √500, which equals 22.361
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1/6 + 1/2 equals show steps
Tomtit [17]
1/2=3/6

3/6+1/6=4/6 goodluck


3 0
3 years ago
Which expression means “ 3 less than the quotient of a number and 7
Yanka [14]
X/7-3=6
X/7=6+3
X/7=9
7x9=63
63/7-3=6
9-3=6

I would say choice “C”
7 0
2 years ago
Decide whether the statement is true or false. If it is​ false, explain why. The union of the solution sets of 4xplus5equals13​,
postnew [5]

The given statement is false because it isn't an empty set!

<u>Step-by-step explanation:</u>

We have following sets of inequalities:

4x+5=13\\4x+5>13\\4x+5

From 4x+5=13 we get ,

4x = 8 \\x=2

Therefore solution set is x=2.

Now, for 4x+5>13 we get ,  

4x+5>13 \\4x>8\\x>2

Therefore solution set is x>2.

For 4x+5 we get ,

4x+5

Therefore solution set is x<2.

Now, the union of x=2, x<2 & x>2 is  -∞<x<∞. i.e. all possible values of x. And so above statement is false because it isn't an empty set!

4 0
2 years ago
2 square root of 5 is between...<br> A) 2 and 3<br> B) 4 and 6<br> C) 6 and 9<br> D) 9 and 12
Natalija [7]
B
Because 2 sqrt5 is = to sqrt 20.

4^2=16, 6^2=36

7 0
3 years ago
Read 2 more answers
50+5w+20m what is the coefficient variable and constant in this expression
Rainbow [258]
Coefficients are ,5,20 variables are w,m and constant is 50
3 0
3 years ago
Read 2 more answers
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