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xenn [34]
3 years ago
7

Anybody know the answer to this

Mathematics
1 answer:
Phoenix [80]3 years ago
4 0

Answer:

x = 2

Step-by-step explanation:

The blue line represent the full line length.

We can add the parted black segments together and set it equal to the line.

11 + 6x - 2 = 6x + 9

10x + 1 = 6x + 9

10x = 6x + 8

4x = 8

x = 2

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2) f(x) = x² **<br> g(x)= 3x – 2<br> Find f(g(-4)
Usimov [2.4K]

Answer:

f(g( - 4)) = 196

Step-by-step explanation:

The functions are;

f(x) =  {x}^{2}

and

g(x) = 3x - 2

We want to find

f(g( - 4))

First we find g(-4) to get:

g( - 4) = 3 \times  - 4 - 2

g( - 4) =  - 12- 2

g( - 4) =  - 14

Now

f(g( - 4)) = f( - 14)

This implies that,

f(g( - 4)) = {( - 14)}^{2}

f(g( - 4)) = {( - 14)} \times  - 14

f(g( - 4)) = 196

6 0
3 years ago
Find the length of the hypotenuse in the triangle with a right side of 5 and a left side of 6. Which choice BEST describes the s
Helga [31]

Answer:

D irrational number

Step-by-step explanation:

because you do the Pythagorean theorem and you get 7.81024976 and that is a irrational number

6 0
3 years ago
The fastest speed at table tennis ball has been hit is 21.12 faster than the speed for the fastest swimmer. What is the speed fo
Juli2301 [7.4K]

Remark

You cannot give an answer to this unless you are give the fastest speed of a swimmer. That stat is not an easy one to decide upon. At what distance for example or do you eliminate distance? Since this is a college level question, I don't think it unreasonable that you have to research raw distance over fastest time.

The fastest speed I can find is 100 meters in 46.91 seconds.  That means that the actual speed of the swimmer is 100 meters / 46.91 = 2.132 meters / second.

Givens

Set up a proportion with the numbers found and given

Speed of ball / speed of swimmer = 21.12 / 1

Speed of ball = x

Solution

Speed of swimmer = 2.132 m/s

x / 2.132 = 21.12 / 1          Multiply Both sides by 2.132

x = 21.12 * 2.132 / 1

x = 45.02 m/s

Answer

45.02 m/s

8 0
4 years ago
Read 2 more answers
What is the radius of 81π square inches​
MrRa [10]
It is 9 inches because the formula for the area of a circle is πr2 where the r represents the radius of the circle

The pi can be canceled out =

πr2 and 81 π leaving with

R2 and 81

The r2 represents a square number. So square root 81 and you would result in 9 as your answer
3 0
4 years ago
What is another name for plane z
jarptica [38.1K]
Plain Z<span> is the </span>plane<span> that is width basicly if looking at a 3d figure.</span>
4 0
3 years ago
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