All categories

3 years ago

What is the domain and range of f(x)=-7x^2-14x-9

Mathematics

1 answer:

aleksklad [387]3 years ago

7 0

Range is f(x) < -2

* The < should have a line under it*

**Sorry i couldn't find the domain**

You might be interested in

HELLP ME PLS QUICK

MAVERICK [17]

Answer:

Both Oscar and Kim will have enough to purchase the book.

Step-by-step explanation:

Oscar takes 30% of the normal price and subtracts it from the normal price. Out of 100% price he takes 30% so the result is: 100-30%= 70% of the normal price. Oscar's first step has the same result as Kim.

Oscar takes 10% of the discounted price (70%) and adds it back. The price will become 70% + 10%*70%= 77% of original price. Kim multiplies the discounted price with 110%, so the price will be: 70% * 110%= 77%. Both also give the same result.

The final price is 77% of the original, it will be: $28.50* 77%= $21.945

Oscar :

28.50 - 0.30(28.50) = 28.50 - 8.55 = 19.95

0.10(19.95) + 19.95 = 2 + 19.95 = 21.95

Kim :

0.7(28.50) = 19.95

1.10(19.95) = 21.95

7 0

3 years ago

Read 2 more answers

Two tapes, red and green, with lengths of 415 feet and 780 feet respectively are to be cut into pieces of equal length without r

ICE Princess25 [194]

Answer:

The greatest possible length of the pieces is 5 feet

Step-by-step explanation:

Red = 415 feet

Green = 780 feet

Find the greatest possible length of the pieces.

Find the Highest common factor

415 = 1, 5, 83, 415

780 = 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390 and 780

The Highest common factor of 415 and 780 is 5

The greatest possible length of the pieces is 5 feet

Red = 415/5

= 83 pieces

Green = 780/5

= 156 pieces

3 0

3 years ago

carter needs to wrap 7 presents. he lays the ribbon out flat and says ,if i nake 6 equally spaced cuts i'll have just enough pie

Andrej [43]

Yes he does. If you cut something 6 times you make 7 pieces

8 0

3 years ago

WILL GIVE BRAINLIEST

Anna11 [10]

Answer:

Sarah is paid $20 an hour at her new job. She wishes to graph her total pay y, as a function of the number of hours, x. She wants to be sure her graph shows her pay for 10 and 20 hours of work.

a. What is a good scale to use for the x-axis? Explain your reasoning.

b. What is a good interval to use for the y-axis? Explain your r

Step-by-step explanation:

3 0

3 years ago

PLEASE HELP with this math

Anastasy [175]

Answer:

Distance = 5

Step-by-step explanation:

7 0

3 years ago