1) A = (14)(24.5)-7^2
= 294m^2
2) A = (6)(7)+(17)(11)/2
= 135.5in^2
3) A = (8)(8)+(8)(4)/2
= 80cm^2
4) A = (7.5)(10)+(7.5)(5)/2
= 93.75cm^2
5) A = (18)(14)-9^2
= 171in^2

7 0

4 years ago

Help please!<br>figure out the "inflection point" of the following function<br>f(x)=5x³ + 2x² − 3x

Artyom0805 [142]

Answer:

x = -2/15.

Step-by-step explanation:

Finding the second derivative:

f'(x) = 15x^2 +4x - 3

f"(x) = 30x + 4

30x + 4 = 0 for a point of inflection

x = -4/30 = -2/15

So 30x + 4 is negative up to x = -2/15 and positive thereafter.

So the curve passes from concave downward to concave upward at x = -2/15.

3 0

3 years ago

Read 2 more answers

Is 2n greater than 3.5n?

Zielflug [23.3K]

Answer: No.

Step-by-step explanation: 2n is not greater than 3.5n. picture it as if it’s on a number line (i included a picture.) 3.5 is further on the line than 2.

3 0

3 years ago