Answer: x = 28
method: You have to get the three missing sides of each shape, one of which you can get straight away because there's a rectangle in the middle and in a rectangle, opposite lines are equal, therefore, the missing length is 10. The other two lengths are the same because the dimensions of each triangle is the same, so you can just find one and multiply it by 2. To find one, you need to use Pythagoras' Theorem (c^2 - b^2 = a^2), so 15^2 - 12^2 = 81, and the square root of 81 is 9. 9 × 2 = 18, so added to the 10 you get your final answer as 28. I hope this helps! Let me know if you need me to explain it more :)
Answer: x=20
Step-by-step explanation:
When solving for a 5-sided pentagon we know the degrees add up to 540 degrees
Step 1: Write all variables given into an equation equal to 540 degrees
4x+5+7x+4x+10+6x+10+5x-5=540
I did not include the parenthesis because when I write out my equation they all share the same variable meaning they are like terms that can be combined.
Step 3: Combine like terms
26x+20=540
Step 4: Isolate the variable
By combining like terms like subtrating 20 to both sides. Always remember what you do to one side you must do to the other.
26x=540-20
Step 5:Continue to isolate the variable
26x=520
x=520/26
x=20
Final Answer
x=20 :) Hope that helped
Answer:
2 1/4
Step-by-step explanation:
13/4 is 3 1/4 because 13 divided by 4 is 3 with a remainder of 1. So from there you subtract 1 from the whole number 3 and are left with 2 1/4. I hope that makes sense! :)
The value of m(n(x)) is x = 9 is 70
<h3>Composite function</h3>
This is a<em> function embedded into another function.</em>
<em />
Given the following functions:
- m(x) = 2x - 2
- n(x) = 4x (Assumption)
The composite function m(n(x)) will be expressed as:
m(n(x)) = m(4x)
m(4x) = 2(4x) - 2
m(4x) = 8x - 2
Is x = 9, then;
m(n(9)) = 8(9) - 2
m(n(9)) = 70
Hence the value of m(n(x)) is x = 9 is 70
Learn more on composite functions here: brainly.com/question/10687170