He makes commission of 15% on everything he sells.....so if he sells 293 worth of stuff, then he would make 15% of 293

15% of 293.....turn ur percent to a decimal..." of " means multiply
0.15 * 293 = 43.95 <==

8 0

2 years ago

If a toy rocket is launched vertically upward from the ground level with an initial velocity of 128 feet per second, then its he

natta225 [31]

Answer:

The maximum height of the rocket is 256 feet

Step-by-step explanation:

The vertex form of the quadratic function f(x) = ax² + bx + c is

f(x) = a(x - h)² + k, where

(h, k) is the vertex point

h = $\frac{-b}{2a}$ and k = f(h)

(h, k) is a minimum point if a > 0 and a maximum point if a < 0

Let us use these rules to solve the question

∵ h(t) = -16t² + 128t

→ Compare it by the form of the quadratic function above

∴ a = -16 and b = 128

∵ a < 0

∴ The vertex (h, k) is a maximum point

∴ The maximum height of the rocket is the value of k

→ Use the rule of h above to find it

∵ h = $\frac{-128}{2(-16)}$ = $\frac{-128}{-32}$

∴ h = 4

→ Substitute x in the equation by the value of h to find k

∵ k = h(h)

∴ k = -16(4)² + 128(4)

∴ k = -256 + 512

∴ K = 256

∴ The maximum height of the rocket is 256 feet

4 0

2 years ago

X is all of the following except a term a variable a constant an expression

docker41 [41]

An expression is the answer

4 0

2 years ago