The answer to your question is 7.4.
That’s easy. To turn 5/2 into 10/4 you multiply by 2. :D Hope this helps!
Lets x = missing angle
x = 180 - (60+80)
x = 180 - 140
x = 40
answer
40
So out of 100 questioned 71 said Dallas Cowboys , that means 71% did , now we have to work out 71% of 1200 which is 852
The equations that are true for x = -2 and x = 2 are
-4 = 0 and 4
= 16
<h3>What is an equation?</h3>
An equation is a mathematical statement that establishes the equality of two quantities.
Analysis:
Testing the equation x2 - 4 = 0
for x = 2,
- 4 = 4-4 = 0
for x = -2 = (-2)2 - 4 = 4-4 = 0
Therefore x2-4 = 0 is true
Testing for 4x2 =16
for x = 2 , 4(2) ^2 = 4x4 = 16
for x = -2 4(-2)^2 = 4(4) = 16.
All other equations are not true except these two.
Learn more about equations: brainly.com/question/2972832
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