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
alisha [4.7K]
2 years ago
13

What js f(5) for the function -2x²+2x-3 A. -107B.-63C. -43D. -37

Mathematics
2 answers:
Viktor [21]2 years ago
8 0

The given function is in terms of x.

So the function is f(x)= -2x^{2}+2x-3

Find f(5), that means the value of x is 5

so plug in x =5 in the given function f(x),

f(x) = -2x^{2}+2x-3

f(5) = -2(5)^{2}+2(5)-3

f(5) = -2(5)(5) + 2(5) -3

f(5) = -2(25) + 10 -3

f(5) = -50 + 10 -3 (apply the rule of integers)

f(5) = -40 -3

f(5) = -43

Answer is option C.

Amiraneli [1.4K]2 years ago
5 0

The given function in terms of x is f(x)=-2x^{2}+2x-3

We have to calculate f(5), it means in the given function we have to substitute the value of x as 5.

f(5)=(-2 \times5^{2})+(2 \times 5)-3

f(5)=-50+10-3

f(5) = -40-3

f(5) = -43.

So, the value of f(5) is -43.

So, option C is the correct answer.

You might be interested in
Mary has $135 to spend on clothes. She wants to purchase winter boots for $70 and some sweaters that cost $20 each. Write an ine
creativ13 [48]

Answer:

1 pair of boots and 6 sweaters

Step-by-step explanation:

70+20s = 135

-70             -70

20s = 135

divide 20 both sides

s = 6.75

She can buy 6 sweaters because she cannot buy half a sweater.

s - sweaters

I need brainliest please

5 0
2 years ago
Read 2 more answers
8-5c=-37 help please :)
ladessa [460]

Answer:

c=9

Step-by-step explanation

8-5c=-37

-37-8= -5c

-45= -5c

-45/-5=c

c=9

6 0
3 years ago
Read 2 more answers
I need help on number 10 please!
hammer [34]

Answer: y = 4x/3 - 5/2

Step-by-step explanation:

The equation of a straight line can be represented in the slope intercept form as

y = mx + c

Where

c represents the y intercept

m = slope = (y2 - y1)/(x2 - x1)

The given line, L1 passes through A(6, - 7) and B(- 6, 2). The slope of line L1 is

m = (2 - - 7)/(- 6 - 6) = 9/ -12 = - 3/4

If two lines are perpendicular, it means that the slope of one line is the negative reciprocal of the slope of the other line.

Therefore, the slope of line L2 passing through the midpoint, M is 4/3

The formula determining the midpoint of a line is expressed as

[(x1 + x2)/2 , (y1 + y2)/2]

Midpoint, M = [(6 + -6)/2 , (- 7 + 2)/2]

= (0, - 5/2]

This means that the y intercept of line L2 is - 5/2

The equation of L2 becomes

y = 4x/3 - 5/2

4 0
3 years ago
What is the square root of 29,
sweet [91]
Nothing times itself will equal 29, but in decimal form only is 5.38
8 0
3 years ago
Solve this please thankyou ​
Bond [772]

Answer:

22

Step-by-step explanation:

-7 is < than 6 so we use the top equation

(-3 multiplied by -7) +1

21+1

22 is the answer

6 0
2 years ago
Other questions:
  • Why is this 1 and not 0? Steps please? Y^0=1. Why is it equal to 1 and not 0? Please really explain this because I’m still convi
    7·1 answer
  • Find the volume of the sphere to the nearest whole number. Use pi = 3.14. A. 131 in. 3 B. 393 in. 3 C. 4,187 in. 3 D. 523 in. 3
    6·1 answer
  • What time is it.But not the time right now the time in your heart.
    9·1 answer
  • Are they similar? If so, identify all pairs of congruent angles and proportional sides. Then give the similarity ratio and the s
    10·1 answer
  • Can you help me with the question please?
    15·2 answers
  • Which property fits 7k + 16 + 4k = 6k + 31
    6·1 answer
  • PLS HELP ASAP I NEED THE ANSWER IF U HAVE IT .​
    14·1 answer
  • Pls help. Me I need sum help y’all
    7·2 answers
  • Helppppppppppppppppppppppp
    15·2 answers
  • The conditional relative frequency table was generated by row using frequency table data comparing the hat size and shirt size o
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!