At 4 seconds because 4 is the maximum point in the parabola
Three times (3 times something) the difference of x and 2 (2-x) is greater than (>) -21 (-21)
3 times (2-x)>-21
3(2-x)>-21
distrobite using distributiver poerpoty
a(b+c)=ab+ac
3(2-x)=6+(-3x)=6-3x
6-3x>-21
add 3x to both sides
6>-21+3x
add 21 to both sides
27>3x
divide both sides by 3
9>x
x<9
so x= any number below 9 not including 9
Answer:
Step-by-step explanation:
model C
We know that h = 65 ft and the angle of elevation to the top is α = 56°.
x - the length of the support wire;
x · cos 56° = 65
x = 65 / cos 56°
x = 65 / 0.5592
x = 116.237 ≈ 116.2 ft ( to the nearest tenth )
Answer: The support wire is 116.2 ft long.
Answer: Product of powers
---
The product of powers rules basically says that two powers, let's call them

and

, with the same base (a) multiplied together equals

.
In your problem you can see that

and

are being multiplied together and the exponents are being added, which is what the "product of powers" law says.