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
Tamiku [17]
3 years ago
13

For the function F defined by F(x) = x^2 – 2x + 4, find F(| – 4|).

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
7 0

| - 4 | = 4

Thus :

f ( | - 4 | ) = f ( 4 )

f ( 4 ) = ( 4 )^2 - 2(4) + 4

f ( 4 ) = 16 - 8 + 4

f ( 4 ) = 16 + 4 - 8

f ( 4 ) = 20 - 8

f ( 4 ) = 12

You might be interested in
There are 15 kittens at the animal shelter, and i want to adopt 2 of them. How many different pairs of 2 are there?
Juli2301 [7.4K]
7

Hope this helped hope you have a good day
8 0
3 years ago
(5×10^-5) +(2.46×10^-3)​
maxonik [38]
My work to your question

5 0
3 years ago
There is a 4-foot fence that surrounds your backyard. The fence casts a shadow that is 5 feet long. If you are 6 feet tall and s
Strike441 [17]
My shadow would be 7 feet tall.

Since I am standing next to the fence, then whatever difference its actual height and its shadow has, will be the same difference of my shadow to my actual height.

fence: Actual height - 4 ft ; Shadow height - 5 ft; difference - 1 ft
me    : Actual height - 6 ft : Shadow height - ?   ; difference - 1ft

Shadow Height - Actual Height = 1 ft
Sh - 6ft = 1ft
Sh = 1ft + 6ft
Sh = 7ft
3 0
3 years ago
Roberta has $10,540 to invest. She plans to invest her money in certificates of deposit (CDs) that have 2.1% interest, a stock p
ira [324]

Answer:

The amount invested in CDs is  $1,340

The amount invested in the stock portafolio is $6,900

The amount invested in the saving accounts is $2,300

Step-by-step explanation:

Let

x ---->the amount invested in CDs at 2.1%

y ---> the amount invested in the stock portfolio at 2.5%

z ---> the amount invested in the savings account at 1.5%

x+y+z=10,540 ----> equation A

z=\frac{1}{3}y ----> equation B

substitute equation B in equation A

x+y+\frac{1}{3}y=10,540

x+\frac{4}{3}y=10,540

x=10,540-\frac{4}{3}y ----> equation C

we know that

The total interest earned by the three amount must be equal to $231.69

so

0.021x+0.025y+0.015z=231.69 ----> equation D

substitute equation B and equation C in equation D

0.021(10,540-\frac{4}{3}y)+0.025y+0.015(\frac{1}{3}y)=231.69

solve for y

221.34-0.0315y+0.025y+0.005y=231.69

0.0015y=231.69-221.34

0.0015y=10.35

y=\$6,900

<em>Find the value of x</em>

x=10,540-\frac{4}{3}(6,900)

x=\$1,340

<em>Find the value of z</em>

z=\frac{1}{3}(6,900)

z=\$2,300

7 0
3 years ago
What is the area of the triangle whose vertical are (-4,0), (-10,0) and (-7,-6)?
olchik [2.2K]

Step-by-step explanation:

from the point -10 to -4 thre is a difference of 6 uints . Base 6

from the x-axis to furthest point,

there is a difference of 6 units. Height 6

8 0
2 years ago
Other questions:
  • At a sandwich shop, 42% of customers buy a drunk with their sandwich Only 28% of customers buy a
    11·1 answer
  • Wesly reads 60 pages in 20 minutes if he reads at the same constant rate what equation could represent this as a proportional re
    8·1 answer
  • How to factor quadratics like <br> 2<br> 3x^+31x+36
    14·2 answers
  • Harold bought 20 toys for his nieces and nephews. The least expensive toy cost $6.19, and the most expensive toy cost $9.81. Whi
    8·1 answer
  • Mackenzie made 38 of 50 free throws. What is the
    6·1 answer
  • At a summer camp, 6-year-olds are in Group A, 7-year-olds are in Group B, and 8-year-olds are in Group C. Is the group assignmen
    7·2 answers
  • What is 4/9 x 5/7 x 1/2
    10·2 answers
  • 66 + 2bc – 46; b= 10, c=5
    7·2 answers
  • Simplify\:\frac{\sqrt{5}}{\sqrt{3}}
    11·1 answer
  • 813 divided by 4 and find remainder
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!