If f(x) = 2x - 3, find f(-2).

Answers

Answer 1
Given :

f(x) = 2x - 3

To Find :

f(-2) = ?

Solution :

As, f(x) = 2x - 3

Therefore, f(-2) = 2(-2) - 3

[tex]\sf : \implies f(-2) = 2(-2) - 3[/tex]

[tex]\sf : \implies f(-2) = - 4 - 3[/tex]

[tex]\sf : \implies f(-2) = - 7[/tex]

Hence, value of f(-2) is - 7.
Answer 2
Substitute-2 for x in the equation and get 2•-2=-4 then subtract 3 from -4, -4-3=-7 so the answer is -7

Related Questions

6²•8² = [?]
Enter the value ​

Answers

Answer:

2,304

Step-by-step explanation:

6² = 36

8² = 64

36 • 64 = 2,304

Answer:

100 I believe

Step-by-step explanation:

Ok calculator time.. 6 to the power of 2 = 36 and 8 to the power of 2 is 64 so 36 + 64 = 100. Hope that helps...

dfhwtuwrturyujyrtuytuypp

Answers

Uhh, what's the question?

5kg of compost cost £7.50. Find the cost of 3kg of compost

Answers

Answer:

£4.5

Step-by-step explanation:

5kg= £7.50

£7.50/5 = £1.5

£1.50 =1 kg

£1.50 times 3 equals £4.5

£4.5

please please help me it's due today! (slopes) (brainliest)

Answers

Step-by-step explanation:

is there any pictures? or something cause if there is i would love to help you

(0, -3) and (9,0)
find the slope

Answers

The slope of (0,-3) and (9,0) is 1/3

How do you dilate a shape by 3 and 5?

Answers

Answer:

To dilate a shape by 3 and 5, I believe you simply multiply them with the original numbers given.

I need it quick and thank you!

Answers

The answer :
It’s the 4th one

what is the length of AB

Answers

Answer:

the length of side AB is 6 units

10 units i believe is the answer

HAS TO BE STEP BY STEP (SHOW YOUR WORK)
How to solve 6 11/12−(2 4/16+3 2/3).

Answers

Answer:

the answer is 1

Step-by-step explanation:

Answer:

Step-by-step explanation:

Convert the mixed numbers into improper fractions.

6 11/12 = 72/12 + 11/12 = 83/12

2 4/16 = 2¼ = 8/4 + 1/4 = 9/4

3⅔  = 9/3 + ⅔ = 11/3

Fractions need a common denominator to be added or subtracted.

Here is a funny thing
Someone does math with out using a calculator

WITCHCRAFT

Answers

Thanks for the free pts, also nice meme lol

area of a 12 ft circle

Answers

113.10 feet, 16,286 square inches, 12.566 square yards, 10.507 square meters, 105,071 square centimeters

name the missing numerator. ?/9 = 36/81

Answers

The answer is 4

I hope this helps :)

Answer:

the missing number is 6

Step-by-step explanation:

because is you do 6/9 and multiply it by it self it

equals 36/81

(9x9) and (6x6)

In VWX, ZW XV, XV = 13 and VW = 8. Find the length of WX. .​

Answers

Answer:

It is an isosceles triangle with angle V at the vertex

The measures of the other 2 angles are

angle W and angle X = (180 -50) / 2

angle W and angle X = 65 degrees each

Step-by-step explanation:

Can you please help me on this??

Answers

Answer:

Step-by-step explanation:

y = 8

272/34 = 8

y =8

Answer:

hhhhjjjjjiiiiuuuuuuiuu

1. A cab company charges its customers a flat rate of
$10 plus $0.75 per mile. Find a rule for the linear
function that describes the cab company's basic fees.

Answers

Answer:

0.75x + 10 = y

of all the songs on a playlist, 1/3 are rock, 1/8 are dance, and the rest are country. what fraction of all the songs on the playlist are country?

Answers

Answer:

13/24

Step-by-step explanation:

First, it would be easier to find the common denominator of 1/3 and 1/8. The easiest way to do that is to do 3x8=24. This means the common denominator is 24 and so we must convert the fractions so they have this denominator.

1/3 --> 8/24

1/8 --> 3/24

Now, we can simply add these fractions together to find out the fraction of songs that are NOT country songs.

8/24 + 3/24 = 11/24 songs are not country songs.

To find out the fraction of songs that are country, simply do 1 (or 24/24) take away 11/24.

24/24 - 11/24 = 13/24 songs are country songs.

HELP y’all !!
DUE RIGHT NOW
giving points

Answers

Answer:

21

Step-by-step explanation:

a=( (a+b)/2 ) * h

A= 5+9/2 * 3

Answer:

9 + 5 = 14 x 3 = 42 divided by 2 is 21

Someone help my sister out, cause I’m not helping her I’m to lazy. Lolz.

Answers

Answer:

72 sq. cm.

Step-by-step explanation:

V = b * h

4 * 6 = 24 which is the base of this object

24 * 3 = 72 which is the volume of this object

What is the measure of JK?
A. 35
B. 55°
C. 145°
D. 125°​

Answers

Answer:

125 degrees.

Step-by-step explanation:

L is the midpoint of NK so the arcs NM and Mk are equal.

So MK = 55 degrees and the arcs JN and JK are equal

Therefore  

JK =

(360 - 2*55)/2

= (360 - 110) / 2

= 250 /2

= 125 degrees.

A company is going to make a water tank in the shape of a cylinder. As shown below, the tank will have a height of 2ft and a radius of 5ft. The tank will be made from metal (including its top and bottom). Suppose the total cost of the metal will be 8572.20. How much will the metal cost per square foot? Use 3.14 for pi, and do not round your answer.

Please give an understandable step-by-step explanation. Thank you !!

Answers

Answer:

$39 per square foot.

Step-by-step explanation:

The cylinder has a height of 2 feet and a radius of 5 feet.

The total cost of the metal will be (assuming US dollars) $8572.20.

And we want to determine the cost per square foot.

First, we can find the surface area of the cylinder. The surface area for a cylinder is given by the formula:

[tex]SA=2\pi r^2+2\pi rh[/tex]

Where r is the radius and h is the height.

Since the radius is 5 feet and the height is 2 feet and using 3.14 for π, the surface area is:

[tex]SA=2(3.14)(5)^2+2(3.14)(5)(2) =219.8\text{ feet}^2[/tex]

Therefore, to find the cost of metal per square foot, we can divide the total cost over the amount of surface area. Hence:

[tex]8572.20 / 219.8= \$ 39 \text{ per square foot}[/tex]

So, the metal costs $39 per square foot.

How many meters are the clouds above the ground? Round your answer to the nearest tenth.

Answers

Answer:

6,000 meters

Clouds are classified by their shape or appearance and their height above the ground. High clouds start above around 20,000 feet (6,000 meters). They often look thin and patchy or feathery.

Step-by-step explanation:

Answer:

20,000

Step-by-step explanation:

Find the geometric mean of each pair of numbers 12 and 50

Answers

The answer is 4, correct me if I’m wrong.

Find the value of X.
X= 30
X= 32
X= 25
X=27

Answers

Step-by-step explanation:

x+25+3x+27=180

4x=128

x=32

so option b

Which side lengths form a right triangle?

Answers

It’s Will be c I guess

You have 24 coins valued at $3.00. Some of the coins are dimes and some are quarters. Find the number of each coin that you have.

Answers

Answer:

10 Quarters and 5 dimes

Step-by-step explanation:

10 Quarters = $2.50

5 dime = $0.50

Answer:

20 dimes and 4 quarters

Step-by-step explanation:

So, a dime is 10 cents and a quarter is 25

So, let's say you have x dimes and y quarters

X+Y=24 (total amount of coins)

Also,

10x+25y= 300 (cents)

I just put the 3 dollars into cents

Now, you have a system of equations and we should solve it:

X+y=24 ----x=24-y

10x+25y=300

So substitute x in the 2nd equation

10(24-y)+25y=300

240-10y+25y=300

240+15y=300

15y=60

y=4

Now that you know the amount of quarters, you can just say that you will have 20 dimes since 24-4=20

So, 4 quarters and 20 dimes

Check:

20 dimes=2 dollars

4 quarters= 1 dollar

correct

0.4y = 1.2
can someone laso maybe show the work?

Answers

Answer:

3

Step-by-step explanation:

1.2/0.4=3, isolate the y to get the answer. Please mark brainliest!



Mr. Kowolski ordered 35 boxes of granola bars. Eoch box contained 24 granola bors.
What is the total number of granola bars Mr. Kowolski ordered?

Answers

Answer:

The total amount of granola bars ordered were 840 granola bars.

Step-by-step explanation:

Multiply 35 by 24.

If Mr. Kowolski ordered 35 boxes of granola bars and Eoch box contained 24 granola bors then 840 is the total number of granola bars Mr. Kowolski ordered.

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

Given that Mr. Kowolski ordered 35 boxes of granola bars.

Each box contained 24 granola bors.

We need to find the total number of granola bars Mr. Kowolski ordered.

To find this we have to multiply thirty five with twenty four.

Multiplication is a method of finding the product of two or more numbers

35×24

We get eight hundred forty

840

Hence, 840 is the  total number of granola bars Mr. Kowolski ordered.

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ2

Directions: Solve for X. Round to the nearest tenth. . 12 54​

Answers

12.8 degrees

sin = o/h

sin(x) = 12/54

sin^-1 (12/54)

= 12.8 degrees

answer this question:)​

Answers

Answer:

p=2(l+b)

=42mm

A=l*b

=108mm to the power 2

need help with my math homework
Write the equation of the line that goes through the point (6, O) and has a slope of -1/2​

Answers

Answer:

y = -1/2x + 3

Step-by-step explanation:

y - y₁ = m(x - x₁)

⇒ y - 0 = -1/2(x - 6)

y = -1/2x + 3

Other Questions
Pls help I really need help pls Can someone help me pleaseeeeee 60 pointsA company uses the expression 1.03^(2+x) to calculate the total percent increase in the company's operating cost, where x represents the number of years since the company began operating. Which expression could be used to calculate the same total percent increase in the company's operating cost?a.) 1.03^2 + 1.03^xb.) 1.03^2 * 1.03^xc.) 1^(2 + x) + 0.03^(2 + x)d.) a^(2 + x) * 0.03^(2 + x) I live in a place where the government owns the means of production. I livein a - Which of the following are considered necessary preventative measures to staysafe from biological agents?Select the 3 answer options that apply.Use safer medical devicesAvoid patient contactIsolate healthcare workers from patients Try solving this: (5 3/4) (2) I am about to go on trip help write a real word problem for the algebraic expression m - 9 What is the difference of 7813? The formant frequencies of speech are also influenced by the density of the propagating medium. The human vocal tract is approximately 17 cm long. What is the first and second formants of this voice what alternative energy source produces carbon dioxide?a. biomassb. geothermalc. moving waterd. nuclear energy help please, the flow chart below depicts the organization of the florida court system. florida county court > florida circuit court > ? > florida supreme court which court completes the flow chart? A. U.S supreme courtB. florida district courtC. U.S district courtD. florida district court of appeal Pls awnser I will mark brainliest as soon as possible 25 points! please answer What is the equation of the line that is parallel to y=-x+4 and that passes through (-2,-2)? how has globalization changed the native papua new guineans? specific examples! True or false: photosynthesis uses food such as sugar A body of water, located near Fresh Kills, is highly polluted because rain washes toxic materials from fresh kills into the water. This process is known as___? We chose food due to habits and emotions. True or false Consider the sodium borohydride reduction of camphor to isoborneol. A reaction was performed in which 1.600 g of camphor was reduced by an excess of sodium borohydride to make 1.062 g of isoborneol. Calculate the theoretical yield and percent yield for this reaction. Theoretical yield: g Percent yield: Should prenatal testing be required of allpregnancies, regardless of whether the parents request it?Why or why not? If you agree, who should cover the cost?