What is this (x+3)(x+5) help really stuck

Mathematics

1 answer:

just olya [345]3 years ago

8 0

That's the factored form of ( x² + 8x + 15 ).

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Below is the graph of f ′(x), the derivative of f(x), and has x-intercepts at x = –3, x = 1 and x = 2. There are horizontal tang

mojhsa [17]

Answer:

C. f has a relative maximum at x = 1.

Step-by-step explanation:

A. False. f(x) is concave down when f"(x) is negative. f"(x) is the tangent slope of the graph, f'(x). So f(x) is concave down between x = -1.5 and x = 1.5.

B. False. f(x) is decreasing when f'(x) is negative. So f(x) is decreasing in the intervals x < -3 and 1 < x < 2.

C. True. f(x) has a relative maximum where f'(x) = 0 and changes from + to -.

8 0

3 years ago

you are buying a new shirt at the mall. It has a price of $59.99. you have a coupon for 20% off. In new jersey the sales tax is

Musya8 [376]

59.99
× .20= 11.99 round up to 12.00

59.99
-12.00=
47.99

47.99
×0.0825=
3.359 round up to 3.96

47.99
+3.96=
Total: $51.95

4 0

4 years ago

Please need help please

Marianna [84]

Answer:

D is the correct answer! Hope it hepls!

Step-by-step explanation:

Please mark brainliest!

5 0

4 years ago

If inflation from last year to this year was 2% and a pair of designer jeans sold for $75 last year, what would you expect to pa

tamaranim1 [39]

Answer:

$76.5

Step-by-step explanation:

We have been given that inflation from last year to this year was 2% and a pair of designer jeans sold for $75 last year. We are asked to find the price of pair of designer jeans this year.

An inflation of 2% will increase the price of pair of jeans by 2%, so price of pair of jeans this year would be $75 plus 2% of $75.

$\text{Price of pair of jeans this year}=\$75+\$75\times\frac{2}{100}$