If f(x)= x^2-2x+3, find the value of f (-2) and f(3)

Answers

Answer 1

Step-by-step explanation:

Given

f(x) = - 2x + 3

Now

f(-2) = (-2)² - 2 * ( -2 ) + 3

= 4 + 4 + 3

= 11

f(3) = 3² - 2 * 3 + 3

= 9 - 6 + 3

= 12 - 6

= 6

Hope it helps :)


Related Questions

A vendor bought 100 g of garlic for 20 from a wholesaler. He then sold it at a gain of 10%. Findthe S.P. of 10 g of garlic for the vendor.

Answers

Answer:

2.2

Step-by-step explanation:

10% of 20 equals 2

10% of 100g equals 10g

22 = 110% 22/10= 2.2

therefore the S.P. of 10 g of garlic is 2.2

Hopefully you guys can see this. This is the 2nd part to my 1st question. The picture with the colored shapes is the 1st part which was already answered gratefully. You can use that picture to help you answer this.
I’ll be giving out a lot points for this as well as Brainliest to whoever answers correctly.
Thank you in advance and take your time.

Answers

Answer:

what are the rods? Are they the same ones as used in the diagram

Step-by-step explanation:

bd s ssvsg helpppp...​

Answers

The second one is the right answer

Mabel has 8 coins, all of which are dimes and pennies. In all, they're worth 35¢. How many of each kind of coin does Mabel have?

Answers

Answer:

5 pennies

3 dimes

Step-by-step explanation:

Answer:

3 dimes and 5 pennies

Step-by-step explanation:

Dimes can only add up to 10s so, it would have to be 3 dimes. Pennies can only add one at a time. So the answer for pennies would be 5. And 5+3=8.

Hope this helps!

Jacob went camping with his family. At 7:15 A.M., Jacob set out to go fishing. It took 1 hour and 45 minutes to hike to the lake. Jacob spent 3 hours and 45 minutes fishing, and it took 1 hour and 15 minutes to hike back. What time was it when Jacob got back to camp?

Include A.M. or P.M. in your answer Please help me fast!!

Answers

Answer:

7:15 A.M. 1 hour and 45 min = 105 min3 hour 45 min= 225 min1 hour and 15 min = 105 min105(2)+ 225= 435 min= 7 hours and 25 min. Add that to the original total you get 14:40 P.M

Solve the given equation for v.

Answers

Answer:(3t)^2

Step-by-step explanation:

Steps below

If f(x)=(x+1)2+3, what is f(5)?

Answers

9514 1404 393

Answer:

  39

Step-by-step explanation:

Put 5 where x is and do the arithmetic.

  f(5) = (5+1)^2 +3 = 6^2 +3 = 36 +3

  f(5) = 39

solve for x,y and z, show your work

2x+y 2=-3
y+z=2
-y +z =12

Answers

If u need help, all you do is simply just move the other equations to the other side for which ever letter your solving for

Find the slope-intercept form between the two points (0,-4) and (-3,-10) * 2 points
Your answer

Answers

Answer:

Y=2x-4

Step-by-step explanation:

1. The Honda Accord uses 192 gallons of gasoline to travel 6 miles. At this
rate, how many miles can the vehicle travel per gallon of gasoline? *

A1152 miles
B32 miles
C0.031 miles
D198 miles

Answers

your awnser is a because 192x6=1152.

On a horizontal number line, -45 is located to the left of -35

Answers

Answer:

true

Step-by-step explanation:

<________________________>

-45              -35                     0

Any help please I appreciate it thank you

Answers

Answer:

20 feet

Step-by-step explanation:

Parimeter is how far you would walk if you made a lap around the shape, walking on the edge lines like a balance beam.

To find perimeter, we need to add up all the sides.

Because it's a square each side has the same length.

There are 4 sides.

5 x 4 = 20

or 5 + 5 + 5 + 5 = 20

The perimeter is 20 feet

what is the nth term for
- 2, 7, 22, 43​

Answers

Answer:

3n^2 - 5

Step-by-step explanation:

Read this E[2X^2 â€" Y].
I know part of it is read as the expected value of two times x square but what do these symbol mean â€" Y.

Write it down in English letters not mathematical expression
Thanx

Answers

Looks like a badly encoded/decoded symbol. It's supposed to be a minus sign, so you're asked to find the expectation of 2X ² - Y.

If you don't know how X or Y are distributed, but you know E[X ²] and E[Y], then it's as simple as distributing the expectation over the sum:

E[2X ² - Y] = 2 E[X ²] - E[Y]

Or, if you're given the expectation and variance of X, you have

Var[X] = E[X ²] - E[X

→   E[2X ² - Y] = 2 (Var[X] + E[X]²) - E[Y]

Otherwise, you may be given the density function, or joint density, in which case you can determine the expectations by computing an integral or sum.

what is tax dependent​

Answers

Answer:

A dependent is a person other than the taxpayer or spouse who entitles the taxpayer to claim a dependency exemption. Each dependency exemption decreases income subject to tax by the exemption amount.

Step-by-step explanation:

Find the area of this quadrilateral.

Answers

Answer:

18

Step-by-step explanation:

I just counted and put together pieces that would reasonably make a full square

I need help please!:D

Answers

Answer:

18

Step-by-step explanation:

Divide 252 by 14 and you will get 18 and if you substitute x or the number you need to find, 18 x 14 = 252. Hope this helps.

Order from least to greatest.
0.64, 13/20, 63%

Answers

Answer:

63%, 0.64, 13/20

Step-by-step explanation:

Convert to decimal0.64 = 0.6413/20 = 0.6563% = 0.63Therefore, the answer is 63%, 0.64, 13/20

HELP PLEASE!!!!!
Bernite is selling candy bars for a school fundraiser. The school paid $20.00 for a box of 15 king-size candy bars and Bernite sells them for $2.00 each. What is the relationship between the amount of candy sold and the amount of money earned?

The relationship is linear. More than 1 answer



a.) The relationship is non-linear.



b.) The relationship is proportional.



c.) The relationship is non-proportional.



d.) The relationship always results in a positive profit.



e.) The relationship always results in a negative profit.

Answers

Answer:

b

Step-by-step explanation:

48/8 = 42/x

Please select the best answer from the choices provided.

A: x = 42
B: x = 7
C: x = 8
D: x = 6​

Answers

Answer:

D because 48 ÷ 8 = 6 42 +6 = 7

The best answer from the choices provided,

is x = 7.

The correct option is B.

What is an expression?

One mathematical expression makes up a term. It might be a single variable (a letter), a single number (positive or negative), or a number of variables multiplied but never added or subtracted. Variables in certain words have a number in front of them. A coefficient is the number used before a phrase.

Given:

An expression,

48/8 = 42/x

Applying cross multiplication,

x = 42(8)/48

x = 7

Therefore, the value of x is 7.

To learn more about the expression;

brainly.com/question/24242989  

#SPJ2

Dave bakes 12 cakes in 3 minutes. If b represents the numbers cakes David bakes in minutes . What is a linear equation that represents this situation

Answers

Answer:

The linear equation will be:

b = 4a

Here,

b = numbers of cakes David bakes

a = the time taken by David to bake cakes

Step-by-step explanation:

Let 'b' represents the numbers of cakes David bakes in minutes.

Let 'a' represents the time David takes to make 12 cakes

As Dave bakes 12 cakes in 3 minutes.

unit rate = 12/3 = 4 cakes / per minute

The unit rate can also be treated as a slope as it is just representing the rate of change.

Thus, the linear equation will be:

b = 4a

Here,

b = numbers of cakes David bakes

a = the time taken by David to bake cakes

VERIFICATION

if a = 3 minuts

then

b = 4(3) = 12 cakes

and

if a = 2 minutes

then

b = 4(2) = 8 cakes

and

if a = 1 minute

then

b = 4(1) = 4 cakes

Thus, the required equation is:

b = 4a

Here,

b = numbers of cakes David bakes

a = the time taken by David to bake cakes

Which phrase describes density? height of a point above sea level force pushing on an area or a surface amount of mass in a certain volume amount of matter an object contains

Answers

A surface amount of mass in a certain volume amount of matter an object contains.

I believe the second sentence is the answer since density is the measurement that compares the amount of matter that an object has to its volume.

Answer:

C i think plz let me know ^w^

Step-by-step explanation:

C С Ε B Н H D in the image point A is the center of the circle. Which two line segments must be equal in length?​

Answers

Question:

In the image, point A is the center of the circle. Which two line segments must be equal in length?

Answer:

[tex]HI = EF[/tex]

Step-by-step explanation:

See attachment for figure

Required

Which two lines must bet equal

From the diagram, we have the following 4 lines:

BCHIEFAD

However, among the 4 lines, only two lines pass through center A.

These lines are:

HIEF

The length of these two line segments because they both pass through the center and they both represent the diameter of the circle.

Hence,

[tex]HI = EF[/tex]

Check over my math please.

Answers

Answer:

It looks like everything is correct :)

Step-by-step explanation:

Triangle X Y Z has centroid S. Lines are drawn from each point through the centroid to the midpoint of the opposite side to form line segments X W, Y V, and Z T. The length of line segment T S is 3 m minus 1, the length of line segment S Z is 4 m + 8, and the length of line segment X S is 2 m + 12.
S is the centroid of triangle XYZ.

What is the length of SW?

Answers

Answer:

it is indeed B

Step-by-step explanation:

a few years late but its fine right

The length of SW will be 9.5. Each median will be divided into segments by the centroid at a ratio of 2:1.

What is the triangle?

A triangle is a three-sided polygon. It is one of the most fundamental geometric forms.

The ratio of the centroid divides each median into segments will be 2:1.

[tex]\rm \frac{SZ}{TS} = \frac{2}{1} \\\\ \frac{4m+8}{3m-1} = \frac{2}{1}\\\\ 4m+8 = 2 (3m-1) \\\\ 4m+8 = 6m -2 \\\\ 2 m = 10 \\\\ m = 5[/tex]

The ratio of the centroid divides each median into segments will be 2:1.

[tex]\rm \frac{XS}{SW} = \frac{2}{1}\\\\ \rm \frac{2 m +12}{SW} = \frac{2}{1}\\\\ SW = \frac{19}{2}\\\\ SW = 9.5[/tex]

Hence the length of SW will be 9.5.

To learn more about the triangle, refer to:

https://brainly.com/question/2773823

#SPJ2

due in 10 minutes help with explanation

Answers

Answer:

first box: -9

second box: -20

Step-by-step explanation:

Group the terms with c and the ones without c:

9c - 15c - 3c = -9c

-12 - 8 = -20

So the simplification is -9c + -20

(which is the same as -9c - 20)

Find the value of y so that the distance between the points (4.7 and 0.6) is equal to 5​

Answers

Answer:

you now if you wont to find the value you can type distance calculator and see the points

Step-by-step explanation:

help? URGENTTT i need to do this quickly...

Answers

Answer: I think 12...

Step-by-step explanation:

Answer:

Step-by-step explanation

[tex]\frac{4x - y}{2} = 5[/tex]

4x - y = 5 × 2

4x - y = 10

4x = y + 10

x = [tex]\frac{y + 10}{4}[/tex]

hope this helps

pls help nmn po bukas na pasahan​

Answers

Step-by-step explanation:

yan na po yung answer .....................................

Combine like terms 10p + 9 + 17e - 5e + 1

Answers

Answer:

10p + 12e + 10

General Formulas and Concepts:

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define

10p + 9 + 17e - 5e + 1

Step 2: Simplify

Combine like terms (e):                    10p + 9 + 12e + 1Combine like terms (Z):                    10p + 12e + 10

Answer:

10p + 10 + 12e would be your answer

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