1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tems11 [23]
3 years ago
15

Given the function ƒ(x) = 20x2 − 18x − 25, find ƒ(−1).

Mathematics
1 answer:
dlinn [17]3 years ago
7 0

f(x) = 20x² - 18x - 25

f(-1) = 20(-1)² - 18(-1) - 25

= 20 + 18 - 25

= 13

You might be interested in
What is the value of f(−1) when f(x)=2x+2 ?
Andreyy89
X=-3/2. The value of f(-1). All you do is plug the numbers In.
6 0
3 years ago
Read 2 more answers
Patricia and Greg are both planting rectangular flower gardens. Patricia’s garden measures 7 ft × 12 ft .Greg’s garden measures
ivann1987 [24]

Answer:

Patricia = $47.5 ;

Greg = $57.5 ;

$10

Step-by-step explanation:

Perimeter of a rectangle : 2(l + b)

Patricia :

7ft * 12 ft

2(7 + 12) = 2(19) = 38 ft

Total fencing cost :

1.25 * 38 = $47.5 ft

Greg:

8ft by 15ft

2(8 + 15) = 2(23) = 46ft

Total fencing cost :

1.25 * 46 = $57.5

Difference in cost :

57.5 - 47.5 = $10

3 0
3 years ago
What’s the answer in simplified form
Schach [20]

Answer:

Step-by-step explanation:

To solve this correctly, you need to make sure to distribute the negative onto both terms in the second parentheses.

So fully expanded, the problem would be:

2y² + 8y -7 + 3y - 3 = ?

You can easily rearrange the terms, or just do it in your head!

It would become:

2y² + 8y +3y -7 -3

= 2y² + 11y -10

Make sure you keep the terms with different variables separate! I hope this is helpful!

3 0
3 years ago
Mason opens a savings account by making a $165.85 deposit. Every week, he deposits another $20.50 in the account. Write an expre
harina [27]

Answer: First multiply 10 by 20.5 because x represents the number of weeks.  You get 205.  Next add 165.85 to that and you get 370.85 as your final answer.  

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
If h(x)=5x-3 find h(-4)
Iteru [2.4K]
5(-4)-3
-20-3
-23
x=-23
5 0
3 years ago
Read 2 more answers
Other questions:
  • Lin’s family has completed 70% of a trip. They have traveled 35 miles. How far is the trip?
    9·1 answer
  • Draw a shape with 3 straight sides and 3 vertices
    11·2 answers
  • What is the midpoint of (0,0) and (-8,6)
    7·1 answer
  • Suppose a stat 121 professor would like to predict the mean final exam score of the students who obtained 80% on exam 3. What ki
    14·1 answer
  • Choose the constant term that completes the perfect square trinomial.<br><br> y 2 + 8y
    7·2 answers
  • Please need help!!!!!!
    8·1 answer
  • A bag contains 9 marbles: 5 are green, 2 are red, and 2 are blue. Kareem chooses a marble at random, and without putting it back
    12·1 answer
  • Please help with this question ASAP
    12·2 answers
  • For each of the following angles, name the angle that is congruent.
    10·1 answer
  • Please help i seriously don’t know this at all lol
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!