Is (-4, 15) a solution to the equation y = -2x + 5? How do you know (PLEASE EXPLAIN HOW YOU KNOW)?

Answers

Answer 1

Answer:

Not a solution.

General Formulas and Concepts:

Order of Operations: BPEMDAS

Step-by-step explanation:

Step 1: Define

y = -2x + 5

Solution (-4, 15)

Step 2: Check

Substitute:                    15 = -2(-4) + 5Multiply:                        15 = 8 + 5Add:                              15 ≠ 13

Here we see that 15 is NOT equal to 13. Therefore, it is NOT a solution to the equation.


Related Questions


Which situation can be represented by this equation?
16 + 0.55n = 22 + 0.25n
Hurry need help ASAP

Answers

C is your correct answer

Elena makes fruit punch by mixing 4 parts cranberry juice to 3 parts apple juice to 2 parts grape juice.



If one batch of fruit punch includes 30 cups of apple juice, how large is this batch of fruit punch?

Answers

Answer:

90 cups (5.63 gallons)

Step-by-step explanation:

30 divided by 3= 10 10x4= 40 10x2=20

30+40+20=90 cups

Question 6

1 pts

If f(x) = 0.41x is a function that represents the cost to mail

x number of letters, what is a reasonable domain for f?

O all real numbers

o all real numbers greater than 0

O the set of all whole numbers

o the set of all integers

Answers

Answer:

B

Step-by-step explanation:

The domain of the function 'f' represents  the set of all whole numbers.

What is a function?

A function is a relation between two sets. One set is called domain of the function and the other one is called range range of the function.

Given function is: f(x) = 0.41x.

f(x) represents the cost of mail.

Here, x represents the number of letters in the mail.

It can't be real numbers because, real numbers consist of negative numbers, fractions, etc.

It can not be integers, real numbers consist of negative numbers.

Therefore, the domain of must be all whole numbers.

Learn more about a function here:

https://brainly.com/question/8473577

#SPJ2

Evaluate each of the following expressions for
a = -2 and b = -10
1. ab


Answers

answer: 20
Explanation: it’s 20 because when 2 variables are together it automatically multiples and when you have 2 negatives they become positives

Jonathan’s parents told him that for 5 every hours of homework or reading he completes, he would be able to play
3 hours of video games. His friend Lucas’s parents told their son that he could play 30 minutes for every hour of
homework or reading time he completes. If both boys spend the same amount of time on homework and reading
this week, which boy gets more time playing video games? How do you know?

Answers

lucas

Step-by-step explanation:

On which interval is y = sin(x) strictly increasing?


(Negative pi, negative StartFraction pi Over 2 EndFraction)

(0, pi)

(StartFraction pi Over 2 EndFraction, StartFraction 3 pi Over 2 EndFraction)

(0, StartFraction pi Over 2 EndFraction)

Answers

Answer:

The function is strictly increasing on (0, π/2)

Step-by-step explanation:

We are given the function;

y = sin x

Let's find the derivative;

dy/dx = cos x

Now, Cos 0 = 1

Cos (π/4) = 1/√2

Cos (π/2) = 0

From the above, we can see that as x approaches 0 from (π/2), the value of (cos x) approaches 1. This means it's increasing from 0 to 1.

Thus, the function is strictly increasing on the interval (0, π/2)

Answer:

D. (0, pi/2)

Step-by-step explanation:

If you graph y=sin(X) (I used desmos) then you find that the graph is increasing from 0 to pi/2  :)

Is this graph of a function yes or no

Answers

Answer: It could be, just add two dots at the smiley face, BOOM! The function of Facial muscles in humans.

Step-by-step explanation:

It’s a functionnnnnnnnnnnnnnnnnnnn

For the figure, which of the following is true? I. m∠1+m∠2=m∠6+m∠5 II. m∠1+m∠3=m∠6+m∠4 III. m∠1+m∠3+m∠6=m∠2+m∠4+m∠5 A. I only B. I and II only C. II only D. II and III only https://homework.russianschool.com/resource?key=17115io81mkjh click on the link for the picture i'm so sorry if the link doesnt work plss help

Answers

Yea the answers 9!!!!!!

Which pair shows equivalent expressions? PLEASE HURRY IM BEING TIMED!!!!

Answers

Answer:

-2x-10=-2(x+5)

Step-by-step explanation:

Answer:

it's the third one

Step-by-step explanation:

I believe on doing homework to good luck with your work hope this helps

One positive integer is 18 more than a second positive integer. If the sum of twice the greater and three times the smaller is 86, find the larger integer

Answers

Step-by-step explanation:

euuruuryduduehehehdhddhdu

Passes through (-2, 6) with a slope of -1/4.

Answers

1/4x+6.5 decimal form 0.25x+6.5
or
1/4(x+26) decimal form 0.25(x+26)

Solve the system of equations.
2x+3y= 6
х+у= 4
A (6,-2)
B (-2, 6).
C (-3, 4)
D (0, 2)

Answers

Answer:

B:-(-2,6) is correct answer 100%

Please help with these angles!!!

Answers

Answer:

23. y = 47

Step-by-step explanation:

40 + 5x =180 (angls on a straight line add up to 180 degrees)

5x=140 (minus 40 from both sides)

x = 28 (divide both sides by 5)

3y - 1 = 140

3y =141 (add 1 to both sides)

y = 47 (divide both sides by 3)

Answer:

y=47

Step-by-step explanation:

Tom’s weekly salary increase from $240-$288. What is the percentage of change?

Answers

Answer:

20%

Step-by-step explanation:

Difference is 48

Hope this helps

HURRY PLEASE!! I’ll mark you as brainliest

Evan has agreed to mow his neighbor's lawn each week. His neighbor will pay him $15 each week. Evan will
also baby-sit some hours each week for $10 per hour. Evan needs to make at least $100 per week to save for
his own car, but if he makes $200 or more each week his parents will charge him rent. How many hours h
should Evan agree to baby-sit each week to avoid paying rent but still be able to save for his car?

Answers

10x18=180, 180+15=195. He needs 18 hours a week of babysitting
Thank you for the 5 points

What is the zero of this linear function?
f(x) = –3x + 3

Answers

Answer:

-3x + 3 = -9x - x = -9

hope this helps :)

Step-by-step explanation:

what is 1+13+2
pls answer for points

Answers

Answer:

1+13=14

14+2=16

Therefore 1+13+2=16

Tristan and two of his friends purchased tickets to a school play. Tristan paid for all the tickets with a $50.00 bill and received $23.00 in change. If Tristan used a coupon for 25% off, what was the original price for one ticket?

Answers

Answer:

$36

Step-by-step explanation:

Tristan paid $50 for the tickets of the school play and was given $23 as change. The amount Tristan paid for the ticket is given as:

Price for ticket = amount paid - change = $50 - $23 = $27

Price for ticket = $27

Given that the ticket was sold at 25% off. Let x be the original price of the ticket, therefore:

x - 25% of x = $27

x - 0.25x = 27

0.75x = 27

x = 27/ 0.75

x = 36

Therefore the original price of the ticket is $36

Answer:

27.00

Step-by-step explanation:

35 is what percent of 35

Answers

Answer:

100% 35/35 is 1 so 100%

Step-by-step explanation:

100% sure this is right gimme brainliest

8. What is the result of (11x + 18i)(117 - 18i)?

Answers

1287x + 342 +(-198x + 2106) i

What is the distance between point A and point B

Answers

Answer:

A(2,3) B(5,9)

distance formula= [tex]\sqrt{(x2-x1)^{2} +(y2-y1)^{2} }[/tex]

#put the value x1,x2 for 2,5 and y1,y2 for 3,9 in the formula

Step-by-step explanation:

7z= 21
2x + 3y – z =-2 x=_y=_2=
x + 2y + 3z = 9

Answers

Answer:

1)  7(3) = 21

Step-by-step explanation:

hi ill reward and give brainly to correct and first people. look at picture follow directions.​

Answers

Answer:

120, 180, 70

Step-by-step explanation:

Which of the following regular polygons circumscribed about a circle provides the best estimate for the area of that circle?

dodecagon
decagon
20-gon
11-gon

Answers

Answer:

The correct option is;

20-gon

Step-by-step explanation:

The area, A, of a regular polygon is given as follows;

[tex]A = \dfrac{n \times s \times a}{2} = \dfrac{P_p \times a}{2}[/tex]

Where;

n = The number of sides

s = The length of one side of the polygon

a = The apothem

[tex]P_p[/tex] = The perimeter of the polygon

Where

The area of a circle, A[tex]_c[/tex] = π×r² = π × r × r = 2× π × r × r/2 = P/2 × r

Given that the apothem, a, of a 20-gon circumscribed about a circle is approximately the length of the radius of the circle, and the perimeter of the 20-gon is approximately the perimeter (circumference) of the circle, the area of the 20-gon circumscribed about a circle provides the best estimate for the area of the circle.

Jose earned 45 points in a video game. He lost 40 points, earned 80 points, then lost 25 more points. Enter and evaluate an expression to find his final score in the video game.

im confused any help?

Answers

Answer:

60 points

Step-by-step explanation:

Every time he earns points we add.

Every time he loses points we subtract.

We can write an equation to resemble the problem and simplify.

45 - 40 + 80 - 25

5 + 80 - 25

85 - 25

60

Best of Luck!

rita reads 3 fiction books for every 2 non-fiction books.Which ratio represents the number of non-fiction books rita has read when read 9 fiction books?

Answers

Answer:

6 nonfiction books

Step-by-step explanation:

if it's fiction to non 9:6

if it's non to fiction 6:9

(you may need to simplify)

You take a cab to a restaurant. The final bill of $31.72 included an 18% tip for the driver. What was the original bill?

Answers

18% of 31.72=5.7096, 31.72-5.7096=26.0104, so $26.01 is the original bill’s cost.

If p represents doubling the dimensions of a rectangle and q represents the area increasing by a factor of 4, which are true? Select two options.


p → q represents the original conditional statement.

~p → ~q represents the inverse of the original conditional statement.

q → p represents the original conditional statement.

~q → ~p represents the converse of the original conditional statement.

p → ~q represents the contrapositive of the original conditional statement.

Answers

Answer:

p → q represents the original conditional statement.

Step-by-step explanation:

In the case when p represents the dimensions that is double of a rectangle while on the other hand the q represent the area i.e. increased by a factor of 4

So this both shows the conditional statement i..e real

where,

P termed as hypothesis

And, q termed as a conclusion

Therefore

The first option is correct

Answer:

A and B are correct

Step-by-step explanation:

trust me or ill kiss u baby girl

7.2 - 1.4 plz show work. thank you

Answers

Answer:

5.8

Step-by-step explanation:

write each number in standard form and word form
11. 654 thousand, 321
12. five six point nine nine ​

Answers

11. 654,321

12. 56.99

Answer:

11. Standard form: 654,321

12. Standard form: 56.99

Word Form:

11. Six hundred fifty four thousand, three hundred twenty one

12. Fifty six point ninety nine

I hope this helps!

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