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Amanda [17]
3 years ago
8

Find x. Please help!!!!!!!!!!!

Mathematics
1 answer:
Lisa [10]3 years ago
7 0

Answer:

  4√6

Step-by-step explanation:

The line marked x meets the base of the isosceles triangle at its midpoint, so dividing the triangle into two congruent right triangles with leg 5 and hypotenuse 11.

The Pythagorean theorem can be used to find x:

  5² + x² = 11²

  x² = 121 -25 . . . . . . subtract 25 from both sides of the equation

  x = √96 . . . . . . . . . take the square root

  x = 4√6 . . . . . . . . . simplify the radical

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I really need help I’m very confused
Vaselesa [24]

Answer:

10: -11n^5

12: 6k^2 -6k+7

Step-by-step explanation:

Ok so what your gonna do is add or subtract the ones with the same exponent.

so -15+4= -11 since they are both n^5 you can add them so your answer is:

-11n^2

now you have 8k^2-k-5k+7-2k. so you are gonna rearrange them so the same exponents are together.(keep the sign in front in front, if no sign it is positive)

8k^2-2k^2-5k-k+7

add like exponents

6k^2-6k+7

6 0
3 years ago
What is 12.38 expanded in form
Lana71 [14]
12.38 in expanded form is write like:-

10 + 2 + .3 + .08 = 12.38

To write a number in expanded form just means to write the number in a layout and when you add it up it will become the number you needed to write in expanded form. 

So, 12.38 written in expanded form is:- 10 + 2 + .3 + 0.8

Hope i helped
3 0
3 years ago
Read 2 more answers
Plsss help!!!!!!! #3 #4​
AVprozaik [17]

Answer:

3) 162 ft²   ||  4) 38.25 mm²

Step-by-step explanation:

3)

area of triangle = 0.5 * base * height

                          = 0.5 * 27 *  12

                          = 162 ft²

4) area of triangle = 0.5 * base * height

                              = 0.5 * 8.5 * 9

                              =  38.25 mm²

3 0
2 years ago
Read 2 more answers
What is 9.1% written as a decimal?
julsineya [31]
To convert a percent to decimal,  move the decimal place two places to the left.  You get 0.091
7 0
3 years ago
Read 2 more answers
I need help please answer right
joja [24]

Answer:

8.5 ft is the length, and 7 ft is the width.

Step-by-step explanation:

8.5 ft is the length

6 0
3 years ago
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