Answer:
-4
Step-by-step explanation:
Given function
f(x) = -2x² + 3x - 4
Comparing with ax² + bx + c We get
c = - 4
Hope it will help :)❤
Answer:4^2≈50.26548
Step-by-step explanation:
πr2.
Where r is the radius and π≈3.14 , the ratio of a circle's circumference to its diameter.
Plugging in 4 from the radius, we get.
42π
⇒16π inches.
This is our exact answer. Alternatively, we can plug in 3.14 for π to get.
50.26 inches.
Answer:

Step-by-step explanation:
Let
h -----> the number of hours, Elon works during one 5-day work week
we know that

Elon’s break time must be equal to 1/2 of an hour multiplied by 5 days plus 1/5 multiplied by the total hours h
so

Solve for h
Multiply by 10 both sides to remove the fraction




If my math is right the it’s 21.13
Work:
(17+18+18+19+20+21+21+21+22+22+22+22+
23+25+26)/15
2=m/2−7
Simplify both sides of the equation.
2=m/2−7
2=1/2m+−7
2=1/2m−7
Flip the equation.
1/2m−7=2
Add 7 to both sides.
1/2m−7+7=2+7
1/2m=9
Multiply both sides by 2.
2*(1/2m)=(2)*(9)
m=18