What is the value of the function y=2x−3 when x=−1?


−5

​−1​

2

3

Answers

Answer 1

Answer:

-5

Step-by-step explanation:

As, x = - 1

So 2(-1)-3 = - 2 - 3 = - 5

So y = - 5


Related Questions

HELP MEEE PLEASEEEEE!!!!! I NEED HELPPP!!

Which the ordered pair that is a solution of the system for linear equations?​

Answers

Answer:

(2,2)

Step-by-step explanation:

Lets check:

(2,2)

2(2)-2=2 Correct !

2=-2+4 correct !

Hope this helps plz hit the crown :D

Answer:

i believe the answers (2,2)

Step-by-step explanation:

if you add it in for y and x  you will see it right

Kevin is 3 years older than twice Jane's age. The sum of their ages is 39. How old is each person?

Answers

Answer:

39 - 3 = 36

36/3 = 12

j = 12

Step-by-step explanation:

what is the sum of three consecutive even numbers is 30?

Answers

8, 10, 12

A helpful equation:
x+x+1+x+2 = 30

Combine like terms
3x + 3 = 30

Subtract 3 from each side
3x = 27

Divide each side by to isolate x
x = 9

x = 9. However, 9 is not an even number. Let’s subtract 1 from 9 to get the first even number.

The first number is 8. The best two even numbers after 8 are 10 and 12.

8 + 10 + 12 = 30, thus this is the sequence.

Answer:

here:

you can make an equation

x + ( x + 2) + (x + 4) = 30

then by combining like items you get

3x + 6 = 30

then solve

3x = 30 - 6 ; then 3x = 24 , and x = 8

so the three numbers are 8 ; 10 and 12.

Sales tax in your community is 6 percent. If you go to a sporting goods store and buy a soccer ball for $19.95, socks for $5.95, and a headband for $10.00, what amount will you pay once the sales tax is added to your purchase?

Answers

Answer:

$26.90 + $1.61 = $28.51

find the decimal number exactly halfway between 1.01 and 1.02​

Answers

Answer:

1.015

Step-by-step explanation:

Just add the number after the hundredth digit, since 5 is halfway we would put the number 5 after the 1.01.

Answer:

0.01

Step-by-step explanation:

because if u subtract 1.01 from 1.02 it will give you the answer

HELP, I am not good at triangles at all

Answers

A, C, D, E, I i think are the answers because for all of the congruent sides there is an angle in the middle. Please please please correct me if Im wrong
C, D, E, and I. I’m in geometry as well

A number cube has the numbers
1 through 6.
After rolling it 60 times, about how
many times would you roll a 5?

Answers

Answer:

that is based on luck u could get 5 everytime or none, depends on what roll

Due in 20 mins pls help!

Answers

Answer:

A.

Step-by-step explanation:

it is in y=mx+b format

What is the quotient of 1 +i ? 3 +4i​

Answers

Step-by-step explanation:

pls check the answer here is ur answer

Answer:

7/25-1/25i

Step-by-step explanation:

a savings account earns 8% interest each year, compounded quarterly (4 times a year). If a person invests $100 and makes no further deposits or withdrawals, what is the balance in the account after 3 years?​

Answers

Answer:  126.82 dollars

===========================================

Work Shown:

The given values are

P = 100 = amount deposited (principal)r = 0.08 = decimal form of the annual interest raten = 4 = compounding frequencyt = 3 = number of years

Which means,

A = P*(1+r/n)^(n*t) .... compound interest formula

A = 100*(1+0.08/4)^(4*3) .... plug in given values

A = 126.824179456254 ..... value is approximate

A = 126.82 ...... round to the nearest cent

The balance of the account after three years is $126.82

Answer:

124 dollars

Step-by-step explanation:

.08 times 100 equals 8

eight times three is twenty four

that is the simplest answer. if the question had any further interests it might of been 126 or even 125.97

look everyone, im sorry if i get questions incorrect i really love math, go on call me a nerd. yes i am one. im also the kid thats quiet in class and also has anxiety so if someone gets upset at me for doing something wrong just know im very srry and im trying to help the best i can with these. aome of these i try and havent even learned yet and i learn things from the answers and i know how to do it after. again im incredibly sorry for the incorrect answers especially in mathmatics IM IN ALGEBRA lol :D have a good day and good night also who perfers school than online distance learning i learn a whole lot more in school than online? anyone else?

Answers

Answer:

heyyy its alright we all make mistakes , the most important thing is that you tried, and learned so you can help others and yourself in the future :D all efforts are appreciated  

Step-by-step explanation:

i'm introverted so online school is epic for me

Answer:

Well I usually do bad in school

Step-by-step explanation:

Triangle B is a(n) ______________________ of Triangle A?
A) Reduction
B) Enlargement

Answers

Answer:

Enlargment

Step-by-step explanation:

Find the smallest solution, and describe the steps you used...[tex]-5ex^{-4x+2}+3=\frac{1}{2}log(x^2+1)[/tex] IM GIVING 50 POINTS!!!

Answers

Answer:

You said that you're giving "50" points, but you're actually giving "25" points.

Given the side lengths, determine whether the triangle is acute,right, obtuse, or not a triangle

Answers

Answer:

acute angle

Step-by-step explanation:

just took the test

Simplify the expression. Give your answer using only positive exponents. Please look at the screenshot!

Answers

Answer:

2\((x^5)(3))

Step-by-step explanation:

Can someone help pls?

Answers

Answer:

Step-by-step explanation:

Let the original width be x

Then the original length = x + 11

Area = x * (x + 11)

If you decrease each side by 7 you get

Area 1 = (x - 7)(x + 4)

So area - area1 =

x (x + 11) -98 = (x - 7)(x + 4)                  Remove the brackets

x^2 + 11x - 98 = x^2 - 7x + 4x - 28      Combine the like terms

x^2 + 11x - 98 = x^2 - 3x - 28              Add 98 to both sides

x^2 + 11x = x^2 - 3x + 70                     Cancel the x^2

11x = -3x + 70                                       Add 3x to both sides

14x = 70                                               Divide by 14

x = 70 / 14

x = 5

=====================

Original conditions

Answer width = 5

Length = 16

If you check this, you will get totally bizarre answers. Don't check it. It gives negative results. You can do this in math, but not in the real world.

Sales at an airport shop has increased by 25 transactions to a total of 400 transactions per day. What is the increased transaction percentage?

Answers

Answer:

6.66

Step-by-step explanation:

3+(−4)−8−(−1)

can guy help me pls

Answers

Answer:

-10

Step-by-step explanation:

Answer:

-8

Step-by-step explanation:

If 4m + 1 = 7 then 4m = 6
1) Symmetric Property 2) Subtraction Property of Equality
3) Substitution Property 4) Transitive Property

Answers

Answer:

2) Subtraction Property of Equality Properties

General Formulas and Concepts:

Pre-Algebra

Addition Property of Equality - Adding on both sidesSubtraction Property of Equality - Subtracting on both sidesMultiplication Property of Equality - Multiplying on both sidesDivision Property of Equality - Dividing on both sidesTransitive Property - If a = b and b = c, then a = cSymmetric Property - If a = b then b = a

Step-by-step explanation:

Step 1: Define

4m + 1 = 7 → 4m = 6

Step 2: Identify

We see that we subtracted on on both sides of the equation. Therefore, we would have to use the Subtraction Property of Equality. Therefore, 2 is our answer.

I will give 26 points for this!!!!

1) GST is 5% and the subtotal is $818.75 what is the Grand total?
2) PST is 8% and the subtotal is $818.75 what is the Grand total?

Answers

Answer:

37.5%

Step-by-step explanation:

Answer:

37.5%

Step-by-step explanation:

What is the length of segment JK

A. 6
B. 8
C. 9
D. 10

Answers

JK is equal to 9, so c
You have to set up a proportion, i’m going to use LM and DC
i’m going from the biggest quad to smallest quad, while setting up a proportion. 20/15=12/x
cross multiply, getting 20x=180
then divide both sides by 20, getting 9!

1. Find the percent of the given quantity using any method: 40% of 320

Answers

Answer:

128

Step-by-step explanation

Turn 40% into a decimal by placing a decimal point 2 places to the left making it 0.40. Then, calculate using 320 multiplied by 0.40 which is 128.

Answer:

the answer is 128.

40% of 320 = 128 :)

A can of vegetables is 8 in. high and has a radius of 3 in. Find the volume of the can.

Answers

Answer:

226.08 in^2

Step-by-step explanation:

The formula for area of a circle is pi*r^2

3^2 = 9

9*3.14 = 28.26

The formula for volume of a cylinder  is surface area times height

28.26*8=226.08

A line segment with A B C at points

Answers

Midpoint of a line segment.

What is the perimeter of a triangle with sides
14 inches, 8 inches, and 16 inches in length?

Answers

Answer:

38 inches

Step-by-step explanation:

just add them all together.

Which equations have the variable term in the equation -6 + 2x = 6x - 9 isolated to one side of the equals sign, and the constant isolated to the other side? Select all that apply, D-6 = 4x-9 O 3-4x=0 O4x = -3 O 3 = 4x O2= 6x-3​

Answers

Answer:

C, D

Step-by-step explanation:

help me please for brainlest

Answers

Answer:

25

I believe

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

Meg is a veterinarian. She found that 25% of the 24 dogs she saw this week were boxers. Steve is also a veterinarian. He found that 8, or 50%, of the dogs he saw this week were boxers. Does each person need to find the part, the whole, or the percent?​

Answers

Answer:

Percent

Step-by-step explanation:

lol I just got it right

Which pairs of triangles appear to be congruent? Check all that apply.

Answers

Answer:

i have no rescources

Step-by-step explanation:

All of them because they are all right

2x + 3y = -10
5y = 4x - 2

Answers

Answer:

(-2, -2)

Step-by-step explanation:

Answer:

(-2,-2)

Step-by-step explanation:

M a t h w a y

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