Answer:
C
Step-by-step explanation:
x is the exterior angle of angle EFG while EFG = 180 - 62 - 43 = 75
—> x = 180 - 75 = 105
Using the formula a² + b² = c² but reversing it to c² - b² = x² where x replaces the a for comprehension reasons
so this is the formula
c² - b² = x²
insert the numbers on the triangle in the picture
21² - 8² = 377
since 377 is squared and not the side length, we need to square root it to find x
√377 = 19.4~
Answer: x = 19.4
17)
x² + 8 = -8
x² = -8 - 8
x² = 16
x = ±√-16
x = ±√16i
x = <span>±4i
</span>
18)
x² + 5 = -3
x² = -3 - 5
x² = -8
x = ±√-8
x = ±√8i
x = ±2√2i
19)
x² + 3 = 0
x² = -3
x = ±√-3
x = <span>±</span>√3i
hope this helps, God bless!
The probability of getting heads on a coin toss is
0.5
The probability of choosing a number <u>less</u> than four is
3/10 (1,2,3)
Therefore, the probability of getting heads <u>and</u> choosing a number less than four is:

Hope this helps!
Answer:
2x+5
Step-by-step explanation:
I'm sorry, but I don't know how to explain this. I hope it helps though.