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
Wittaler [7]
3 years ago
10

I need the answer and show work for this question

Mathematics
2 answers:
gavmur [86]3 years ago
6 0

Answer:

f(3) =-12

f(-1) =-12

Step-by-step explanation:

HELLO THERE

f(3)=-2(3)^2+8(3)

f(3)=-36+24

f(3)=-12

----------------------------

f(-1) =2(-1) ^2+8(-1)

f(-1) =-4-8

f(-1) =-12

//Both equal -12//

HAVE A GREAT DAY

snow_lady [41]3 years ago
4 0

Answer:

Step-by-step explanation:

f(x) = -2x² + 8x

f(3) = -2*(3)² +  8*3

     = - 2*9 + 24

     = - 18+ 24

f(3) = 6

f(1)= -2*(-1)² + 8*(-1)

   = -2*1  - 8

  = - 2 -8

f(1) = -10

You might be interested in
I need help with this please :(
Charra [1.4K]

Answer:

see the ans

if it helps then mark as brainliest✌️✌️

5 0
3 years ago
An automobile tire loses t milliliters of tread traveling m miles. What is the independent variable?
CaHeK987 [17]
Dependent variable is dependent on the independent variable

m, because the amount of tread lost depends on how many miles you traveled
it's not, the amount of miles depends on how much tread you lost


m is indepdent

5 0
3 years ago
Amy buys 8 sandwiches and 12 waters.her total cost is 8s+12 how much did she pay
ASHA 777 [7]
Is there another part?
6 0
3 years ago
Molly owes her brother $300.She works for $10 per hour as a checker at the local grocery store.Molly plans to repay her brother
gavmur [86]

Answer: The expression which represents the condition described is given as  4x=300

Step-by-step explanation:

Since we have given that

Amount that Molly owes her brother = $300

Let the number of hours she worked as a checker be x

Cost of per hour = $10

Amount she get after doing work for x hours is given by

10x

Rate of tax are taken out = 80%

So, amount she left with is given by

\frac{100-20}{100}\times 10x\\\\=\frac{80}{100}\times 10x\\\\=8x

So, Molly plans to repay her brother half of what she earns is given by

\frac{8x}{2}=4x

According to question,

4x=300\\\\x=\frac{300}{4}\\\\x=75\ hours

So, the expression which represents the condition described is given as

4x=300

3 0
3 years ago
Read 2 more answers
Could someone help me
Mekhanik [1.2K]

Answer:

the third one and the last one is correct

Step-by-step explanation:

we already know the second one is wrong because of it's set up.

just replace the points (-1,7) into each equation. if it doesn't work then move on to the next one. if it does work, then use that same equation except this time to the coordinates (2,4)

5 0
3 years ago
Other questions:
  • What is ​4910​ (it's a fraction that's 9 over 10 with 4 next to the fraction) expressed as a decimal? Enter your answer in the b
    11·1 answer
  • Write 2^100 as an exponent with a base of: 4
    5·1 answer
  • How many minutes are required for a car to go
    9·2 answers
  • SOMEONE PLZ HALP ME ON THIS ASAP! A fountain is made up of two semicircles and a quarter circle. Find the perimeter of the fount
    11·1 answer
  • Please helpppp
    7·1 answer
  • 75,984 what the value for the 5 representing
    14·2 answers
  • Which expression is equivalent to (84+16)
    11·2 answers
  • These box plots show the daily high temperatures in two cities over a
    13·1 answer
  • Find the sum of -3x2 -4x+3 and 2x2-x+3
    5·1 answer
  • Question 2 Multiple Choice Worth 4 points)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!