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
larisa [96]
3 years ago
15

If f(x) =15x 2 + 10x, find f(-1) Anyone know the answer?

Mathematics
1 answer:
Rom4ik [11]3 years ago
7 0
I'm assuming the given function is f(x) = 15x^2 + 10x.

If so, then,

f(x) = 15x^2 + 10x
f(x) = 15*(x)^2 + 10*(x)
f(-1) = 15*(-1)^2 + 10*(-1) ... note how x is replaced with -1
f(-1) = 15*(1) + 10*(-1)
f(-1) = 15 - 10
f(-1) = 5

Therefore the answer is 5
You might be interested in
Ewen has 48 whistle tiles and 16 blue tiles the cost of each white tile was £2 and the cost of each blue tile was £4 Work out th
AnnZ [28]

Answer:

3:2

Step-by-step explanation:

Ewen has 48 white tiles and 16 blue tiles

The cost of each white tile was £2

The cost of each blue tile was £4

Therefore the total cost of 48 white tiles is

= 48×2

= £96

The total cost of 16 blue tiles is

= 16×4

= £64

The ratio of the total cost of the white tiles and blue tile can be calculated by dividing the cost of both tiles by their greatest common factor

The greatest common factor of £96 and £64 is 32

96/32 = 3

64/32= 2

Ratio= 3:2

Hence the ratio of the total cost of the white tiles to the blue tiles is 3:2

6 0
3 years ago
What is the distance between 15 miles east and 12 miles west?
inysia [295]

Answer:

27 miles.

Step-by-step explanation:

if you count from the 15 miles from the east to the 12 miles in the west, it would add up to 27. hope this helped

7 0
2 years ago
I need help with this answer
Llana [10]

Answer:

Im not sure but lets play warzone

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is a simpler form of the expression?<br><br> (2n^2 + 5n +3)(4n - 5)
coldgirl [10]

Answer:

8n³ + 10n² - 13n - 15

Step-by-step explanation:

Distribute the factors by multiplying each term in the first factor by each term in the second factor, that is

4n(2n² + 5n + 3) - 5(2n² + 5n + 3) ← distribute both parenthesis

= 8n³ + 20n² + 12n - 10n² - 25n - 15 ← collect like terms

= 8n³ + 10n² - 13n - 15

5 0
3 years ago
Read 2 more answers
How many numbers between 1 and 100 are divisible by 3 or 2
Zielflug [23.3K]

Answer:

By 3: 33 numbers

By 2: 49 numbers

Both: 66 numbers

4 0
3 years ago
Other questions:
  • Five hundred people are enrolled in a 10-year cohort study. At the start of the study, 50 have diagnosed CVD. Over the course of
    11·1 answer
  • 150 x $2. =300 and then 300 =5 =305.00
    12·1 answer
  • Does anyone know how to do this?
    11·1 answer
  • WILL GIVE Brainliest!!!!!!!!!!!<br> what is:<br> 8/3 + 2<br> as a fraction
    6·2 answers
  • Circle A has a diameter of 9 inches, a circumference of 28.26 inches, and an area of 63.585 square inches. The diameter of circl
    5·1 answer
  • Select all irrational numbers
    15·2 answers
  • 17/18 -3/7= need answer please
    13·1 answer
  • Round the answer to the nearest hundred.
    14·1 answer
  • The table shows some ingredients in lasagna. If you make three times the recipe, how many cups of cheese are needed?
    7·2 answers
  • Solve for [x]. The polygons in each<br> 2x-20<br> 16<br> 16<br> 8
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!