What is the value of f(-2) and f(3)

What Is The Value Of F(-2) And F(3)

Answers

Answer 1

Answer:

Step-by-step explanation:

When answering questions like this, we  have to first decide which function we have to use. This is done by looking at the given domains (the x≤-2 etc). The first question ( f(-2) ), means we have to choose the function that applies to the x-coordinate -2. x=-2 is part of the section x ≤-2 since the sign means larger or equal to -2. Hence, we use the function 2x+8 to calculate f(-2). After finding this, the solving is relatively easy, just fill in the x-coordinate:

f(-2) = 2 * -2 + 8 = -4 + 8 = 4

The second one needs the same method. x=3 belongs in the section

-2 < x ≤ 3, since the final part means x is smaller or equal to 3, and in this case it is. Hence we use [tex]x^{2} -3[/tex] here:

f(3) = 3² - 3 = 9 - 3 = 6

I hope this helps! Feel free to reach out if you still have questions


Related Questions

-8.2 +9.1
Yes I’m just making sure I got this question right but tell me what the answer is pls!

Answers

Answer:

0.9 is your answer.

how far can freddy drive in 8 hours at an average speed of 50 miles per hour ?

Answers

Answer:

400 miles

Step-by-step explanation:

Distance = rate * time

Distance = 50 miles per hour * 8 hours

Distance = 400 miles

Answer:

400 miles

Step-by-step explanation:

Distance =rate×time

50miles×8hrs=400

sin 0 = 7/25 and cos 0 = - 24/25.
Find tan 0.

Answers

Answer:

Step-by-step explanation:

tan O = sin O / cos O

= 7/25 / -24/25

= 7/25 * -25/24

= -7/24.

Answer:

-7/24

Step-by-step explanation:

Solve the domain and range.

Answers

Answer:

the domain is zero the range of this graph is less than zero

Find the standard deviation for the set of data. {25, 4, 15, 19, 20, 18,7, 21, 24}
A. 6.39
B. 6.31
c. 7.09
D. 6.8

Answers

D

Step-by-step explanation:

The answer is c which is 7.09

What is the distance between the points -1 ,8 and 7,8
in the coordinate plane

Answers

Answer: 8 units

Step-by-step explanation:

To find the distance between 2 points, we want to use the formula [tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]. Since we are given the 2 points, all we have to do is plug them in.

[tex]d=\sqrt{(7-(-1))^2+(8-8)^2}[/tex]      [parenthesis]

[tex]d=\sqrt{(8)^2+(0)^2}[/tex]                        [exponent]

[tex]d=\sqrt{64+0}[/tex]                               [add]

[tex]d=\sqrt{64}[/tex]                                     [square root]

[tex]d=8[/tex]

Now, we know the distance is 8 units.

please find value of x and y​

Answers

Answer:

X=x=−5y/3

y=x=−5y/3

Step-by-step explanation:

2x+y/3⋅1/x−3y=1/3⋅1/2=x=−5y/3

Answer:

x = [tex]\frac{5}{7}[/tex] , y = - [tex]\frac{3}{7}[/tex]

Step-by-step explanation:

Given 2 equal matrices then the corresponding elements in each matrix are equal, then

2x + y = 1 → (1)

x - 3y = 2 → (2)

Multiplying (1) by 3 and adding to (2) will eliminate y

6x + 3y = 3 → (3)

Add (2) and (3) term by term to eliminate y

7x + 0 = 5

7x = 5 ( divide both sides by 7 )

x = [tex]\frac{5}{7}[/tex]

Substitute this value into (1) and evaluate for y

[tex]\frac{10}{7}[/tex] + y = 1 ( subtract [tex]\frac{10}{7}[/tex] from both sides )

y = [tex]\frac{7}{7}[/tex] - [tex]\frac{10}{7}[/tex] = - [tex]\frac{3}{7}[/tex]

Find the inverse function of y=3x-7

Answers

Answer:

Since g(f(x))=x g ( f ( x ) ) = x , f−1(x)=x3+73 f - 1 ( x ) = x 3 + 7 3 is the inverse of f(x)=3x−7 f ( x ) = 3 x - 7 .

You can by six cans of dr. pepper for $2.50. How many cans of dr.
pepper can you buy for $10?

Answers

Answer:

4

Step-by-step explanation:

10 / $2.50 = 4

You can buy 4 cans of Dr. Pepper for $10

Chow,...!

The midpoint of UV is (5, -11). The coordinates of one endpoint are U(3,5). Find the coordinates of endpoint V.

Answers

The coordinates of endpoint V is (7, -27) if one endpoint is U(3,5) and the midpoint of UV is (5, -11)

Midpoint of a line is a point that divides any line into two equal parts.

The midpoint of two coordinates (x1, y1) and (x2, y2) is expressed as:

[tex]M(X, Y)= (\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2} )[/tex]

Given the following

midpoint of UV = (5, -11)

U = (3, 5)

Get the other coordinate x2 and y2

Based on the formula above:

[tex]X = \frac{x_1+x_2}{2}\\5=\frac{3+x_2}{2}\\10 = 3 + x_2\\x_2 = 10-3\\x_2 = 7[/tex]

Get the other coordinate x2

[tex]Y = \frac{y_1+y_2}{2}\\-11=\frac{5+y_2}{2}\\-22 = 5 + y_2\\y_2 = -22-5\\y_2 = -27[/tex]

This shows that the coordinates of endpoint V is (7, -27)

Learn more here: https://brainly.com/question/17685913

please help me fast ​

Answers

Answer:

Question no 3 have been solved

which square root should be placed between the number 17 and 18 on the number line.

Answers

17^2 = 289
18^2 = 324
Any of the numbers between 289 and 324 exclusive will have a root between 17 and 18
Eg sr(300) = 17.3205... is between 17 and 18 on the number line.
There are 33 other whole number answers you could pick

Simplify.
Rewrite the expression in the form 5”.
(5-8)(5-1) =

Answers

Answer:

[tex](5 ^{ - 8} )( {5}^{ - 10} ) = {5}^{ - 18} = 2.62 \times {10}^{ - 13} [/tex]

I hope I helped you^_^

I hope this help you

How do you know each of the sides of the shape are the same length?

Answers

Answer:

If your shape is a regular polygon (such as a square in the example above) then it is only necessary to measure one side as, by definition, the other sides of a regular polygon are the same length. It is common to use tick marks to show that all sides are an equal length.

Step-by-step explanation:

Hope it helps love form india server

Answer:

they usually have double line on top of the lines of the shapes. for example square they have all the same lenght so they have double line signs on top of them

i hope this help. good luck

3(x - 2) > -3
What is the answer on have no idea

Answers

Answer:

1

Step-by-step explanation:

3x-6>-3 =

3x>3 =

x=1

Answer:

any value of x from the interval ( 1 , ∞ )

Step-by-step explanation:

3(x - 2) > - 3

[tex]\frac{3(x-2)}{3}[/tex] > - [tex]\frac{3}{3}[/tex]

x - 2 > - 1

x > - 1 + 2

x > 1

x ∈ ( 1 , ∞ )

HELP PLEASE NUMBER 2!!

Answers

Answer:

117 is the Answer

Step-by-step explanation:

the number are on the top times it by 9

Answer: 117

Step-by-step explanation:

9 bikes per hour

       (x*9) = y

(1*9) = 9(13*9) = 117(6*9) = 54(14*9) = 126

lilli has $3.65 comprised of quarters and dimes floating on the bottom of her bag she has five more dimes than twice her quarters how many each type of coin does she have? lol pls help

Answers

Answer:

7 quaters and 19 dimes

Step-by-step explanation:

Let say x the numbers of quaters,

2*x+5 the numbers of dimes

In cents,: 25*x+10*(2x+5)=365

25x+20x+50=365

45x=365-50

45x=315

x=7

Number of quaters: 7

Number of dimes: 2*7+5=19

Proof:

7*25+10*19=365

Put one set of brackets in this calculation so that it is correct. 10 – 3 × 4 – 2 + 1 = 5​

Answers

Answer:

10 - 3 × (4 - 2) + 1 = 5

Step-by-step explanation:

10 - 3 * 2 + 1 = 5

10 - 6 + 1 = 5

4 + 1 = 5

= 5

find the missing side of each triangle. love your answers in simplest radical form.

Answers

Answer:

It is 8 ft ......... ok? I hope it helps

Please help with the main graph that has the 3 bullet points!!

Answers

Answer:

Identify the correct parent function.

        [tex]f(x)=x^{2}[/tex]

Is the relation also a function?

        Yes, all inputs have one output.

Is it continuous or discrete?

        Continuous, it has a solid line.

What is [tex]f(2)[/tex] ?

        [tex]f(2)=4[/tex]

Mark spent a total of ₱60 in 6 days by spending half the amount he spent the previous day. What was the amount he spent on the first day?

a.30.84
b.30.83
c.30.38
d30.48​

Answers

Answer: 30.48

Step-by-step explanation:

Sum the series of 30.48 + (1/2)(30.48)+ (1/4)(30.48)+(1/8)(30.48)+(1/16)(30.48)+(1/32)(30.48)

Or use an Excel spreadsheet

Answer:

d

Step-by-step explanation:

the amount he spent on the first day: 30.48

-124 = -7(5x+ 6)- 6x how do I solve this

Answers

Answer:

Step-by-step explanation:

-124 = -7(5x+ 6)- 6x                     Remove the brackets

-124 = -35x - 42 - 6x                   Combine like terms

-124 = -41x - 42                          Add 42 to both sides

-124+42 = - 41x                          Combine

-82 = - 41x

-82/-41 = x

x = 2

How do I explain this??

Answers

Answer:

No

Step-by-step explanation:

The x-axis shows Craig's pitch speed in miles per hour.

The highest speed he did was between 70 to 75 mph. Craig's doesn't specify the speed in the histogram, so we can only be sure that Craig's fastest is between 70 to 75 mph.

4. Is it appropriate to use an absolute value inequality to represent how a player wins
this game? Why? (2 points: 1 point for an answer, 1 point for an explanation)

Answers

Using it's concept for the difference between points, the absolute value inequality |x - y| < 10 represents when Erik wins the game, and the inequality |x - y| ≥ 10 represents when Nina wins the game.

What is the missing information?

Erik and Nita are playing a game with numbers. In the game, they each think of a random number from zero to 20. If the difference between their two numbers is less than 10, then Erik wins. If the difference between their two numbers to greater than 10, then Nita wins. Use what you know about inequalities and absolute values to better understand the game.

What is the absolute value function?

The absolute function is defined by:

|x| = x, x ≥ 0.|x| = -x, x < 0.

It measures the distance of a point x to the origin, hence, for example, |-2| = |2| = 0.

For this problem, we have that:

Erik's number is x.Nina's number is y.

The difference between these two numbers is:

|x - y|.


Erik wins if the difference is less than 10, hence:

|x - y| < 10.

Hence:

Using it's concept for the difference between points, the absolute value inequality |x - y| < 10 represents when Erik wins the game, and the inequality |x - y| ≥ 10 represents when Nina wins the game.

More can be learned about the absolute value equation at https://brainly.com/question/5012769

#SPJ1

so the question says im at dicks looking for new balls for the team because the ones we have are deflated and it cost $56 per each ball if i have $198.98 how many balls will i be able to but at the dicks store

Answers

Answer:

3

Step-by-step explanation:

We cannot but partial balls so we need  whole number of balls.

we can use units to easily visualze the issue.

56 $/ball and we have $198.98. We need balls so we do

198.98 / 56 = 3.55

We can at most buy 3  balls.

EXTRA: 56 * 3 = 168

will have 30.98 leftover

Answer:

The answer is 6

Step-by-step explanation:

You can buy 6 balls.

The first term of an arithmetic sequence is –12 and the ninth
term is 16.
Calculate the value of the common difference.

Answers

Answer:

d = [tex]\frac{7}{2}[/tex]

Step-by-step explanation:

The nth term of an arithmetic sequence is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given a₉ = 16 , then

- 12 + 8d = 16 ( add 12 to both sides )

8d = 28 ( divide both sides by 8 )

d = [tex]\frac{28}{8}[/tex] = [tex]\frac{7}{2}[/tex]

urgent answer needed pls​

Answers

Answer:

25.

SEE THE IMAGE FOR SOLUTION

10(g+5) = 2(g +9)
solve for g​

Answers

Answer:

g= -4

Step-by-step explanation:

1. Remove the parentheses by multiplying 5 by 10 and 9 by 2 so that would be 10g + 50= 2g + 18

2. Move the terms by their correct side. Constants to the right and variables to the left so that would be 10g - 2g = 18 - 50

3. Now do 10 - 2 and 18 - 50 so the results will be 8g = -32

4. Divide both sides of the equation by 8 so 32÷8.

5. The result is g= -4

Answer:

g = - 4

Step-by-step explanation:

Given

10(g + 5) = 2(g + 9) ← divide both sides by 2 )

5(g + 5) = g + 9 , that is

5g + 25 = g + 9 ( subtract g from both sides )

4g + 25 = 9 ( subtract 25 from both sides )

4g = - 16 ( divide both sides by 4 )

g = - 4

You worked 48 hours. Anything over 40 hours is time-and-a-half. You made $789.52. What is your
hourly rate?

Answers

Answer:

$18.95

Step-by-step explanation:

Answer:

If you have nonexempt employees, you have to pay them overtime, or time and a half, for any hours worked over 40 during the workweek.

50000 is times as much as 500

Answers

Answer:

10

Step-by-step explanation:

Answer:

it's 100

Step-by-step explanation:

just divide 50,000 by 500 and you'll get 100 so 50000 Is 100 times as 500

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