Julio tested the point (4, –2) to see whether it is a solution to this system of equations.

–3x – 2y = –8,
y = 2x – 5

His work is shown below.

Negative 3 (4) minus 2 (negative 2) = negative 8. Negative 12 + 4 = negative 8. Negative 8 = negative 8. Therefore, (4, negative 2) is a solution to the system.

Did Julio verify the solution?
No. He substituted 4 and –2 for the wrong variables.
No. He did not check the point in the second equation.
No. He simplified the equation incorrectly.
Yes. He verified that (4, –2) is a solution to the system of equations.

Answers

Answer 1

Answer:

the answer is B on edge

Step-by-step explanation:

B. No. He did not check the point in the second equation

can i get brainly so i can rank up?

Answer 2

Answer:

Like I said B

Step-by-step explanation:


Related Questions

LCM of 189024
please give me answer my question​

Answers

Answer:

360

Step-by-step explanation:

We need to find the LCM of 18,90 and 24.

The prime factorization of 18 = 2 × 3 × 3

The prime factorization of 90 = 2 × 5×3×3

The prime factorization of 24 = 2 × 3×2×2

LCM is least common multiple.

LCM = 2 x 2 x 2 x 3 x 3 x 5

= 360

Hence, the LCM of 18,90 and 24 is 360.

PLS HELP ME ILL MARK BRAINLIST IF SOMEONE CAN HELP ME WITH THESE 2 QUESTIONS!!
1. Andrew grew 1 3/4 inches last year. This year he grew 2 2/3 inches. What was his total growth for the two years?
-
2. Abbey rode her bike for 1 3/4 hours on Saturday and 1 5/8 hours on Sunday. What is the total amount of time she rode her bike on these two days ?

Answers

Answer:

1. Andrew grew 4 5/12 inches in 2 years

2. Abbey rode her bike for 3 3/8 hours in 2 days.

Step-by-step explanation:

When adding fractions you must have a common denominator for both of them.

First make the mixed fraction, improper fractions.

1 3/4 = 7/4

2 2/3 = 8/3

7/4 x 3/3 = 21/12

8/3 x 4/4 = 32/12

21 + 32 = 53

53/12 = 4 5/12

1 3/4 = 7/4

1 5/8 = 13/8

7/4 x 4/4 = 28/16

13/8 x 2/2 = 26/16

26 + 28 = 54

54/16 = 3 3/8

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

12) The ratio of the measures of the three sides of a triangle is 4:6:9, and its perimeter
is 190 inches. Find the measure of each side of the triangle. Show proportions.

Answers

Answer:

:)

answered in comments

Step-by-step explanation:

• The average cow drinks 168 quarts of water each day. Given that there
are 4 quarts to one gallon, how many gallons of water does the average
cow drink?

Answers

42 gallons. This is because there are 4 quarts in a gallon and 168/4=42

What expression is equivalent to 24x - 9​

Answers

Answer:

3(8x-3)

Step-by-step explanation:

Write an expression, using an exponent that is equivalent to 6 x 6 x 6 x 6 x 6.

Answers

Answer:

6^5

Step-by-step explanation:

put the 5 and make it tiny on top of the 6

Answer:

6^5 to give u the same thing as 6×6×6×6×6×6

help easy alll you have to do is drag arrows wich i will be doing to the finish line have any questions comment!!!

Answers

Answer:

tyreagdfasgavgcrec

Step-by-step explanation:

aerbygrsyhbrsvd

The graph of an absolute value function contains the points (1, 2), (0, 0), and (–1, 2). Shawn thinks the function this graph represents is f(x) = 2|–x|. Brielle thinks the function this graph represents is f(x) = 2|x|. Determine who is correct and explain why.

Answers

Answer:

Shawn and Brielle are correct, since absolute has the following property: [tex]|a| = |-a|[/tex], [tex]a\in \mathbb{R}[/tex]

Step-by-step explanation:

Both Shawn and Brielle are correct, because the absolute value has the following property:

[tex]|a| = |-a|[/tex], [tex]a\in \mathbb{R}[/tex]

Which means that [tex]|x|[/tex] and [tex]|-x|[/tex] gives the same result.

Answer:

Both Shawn and Brielle are correct. The absolute value parent function is symmetric with respect to the y-axis, and the absolute value of negative x is a reflection across the y-axis, so the graph of these two functions would look identical. Additionally, if you wanted to verify that the given points are on the graph of both functions, you could substitute them into the functions to get true statements.

Step-by-step explanation:

Sample Answer on Edge

Hello? Someone please help me with this.

Answers

Answer:

16x-6

Step-by-step explanation:

well in order to do so

u have to multiply 2 to 8x to get 16x

and then, multiply the 2 to -3 to get -6

this is the distributive property form. and that's how u get ur answer

HELP ASAP! QUESTION IN PHOTO

Answers

Answer:

6.4

Step-by-step explanation:

1-1.6

4X1.6=6.4

After years of maintaining a steady population of 32,000, the population of a town begins to grow exponentially. After 1 year and an increase of 8% per year, the population is 34,560. Which equation can be used to predict, y, the number of people living in the town after x years? (Round population values to the nearest whole number.)

y = 32,000(1.08)x
y = 32,000(0.08)x
y = 34,560(1.08)x
y = 34,560(0.08)x

Answers

Answer:

I THINK UTS A            y = 32,000(1.08)x

Step-by-step explanation:

Answer:

TS A            y = 32,000(1.08)x

Step-by-step explanation:

please help! please show work ​

Answers

Divide 2 by -8.
X >= -0.25 (you flip the sign because of the negative)

Answer:

-8x ≤ 2divide both sides by -8 (if you dividing inequalities with negative values.. you have to flip the sign when writing the answer  ) x ≥ -0.25your answer is (D)

The data shows the number of salad wraps sold on each day for two weeks at a sandwich shop.


Week 1: 15, 13, 14, 14, 13, 12, 13

Week 2: 18, 3, 15, 15, 16, 14, 16


Which statement about the data is true?


a. The mean of Week 1 data is a good estimate of the sandwich shop's daily sales.



b. The mean of Week 2 data is a good estimate of the sandwich shop's daily sales.



c. Both the mean of Week 1 data and the mean of Week 2 data are good estimates of the sandwich shop's daily sales.



d. Neither the mean of Week 1 data nor the mean of Week 2 data is a good estimate of the sandwich shop's daily sales.

Answers

Answer:

Did you find the answer?

Step-by-step explanation:

Please help me with this!

Answers

Answer: the answer is d.

The length of a rectangle is 7/10 feet and it's width is 1/5 feet. What is it's perimeter?​

Answers

Answer:

9/5 feet if they want an improper fraction

Step-by-step explanation:

p = 2l + 2w

2(7/10) = 14/10

rewrite 1/5 as 2/10

2(2/10) = 4/10

14/10 + 4/10 = 18/10 feet or simplified to 9/5 feet if they want an improper fraction

PLZ DON'T TROLL ACTUALLY ANSWER THE QUESTION CORRECTLY
ALGEBRA 1 QUESTION

Ingrid hit a golf ball. The height of the ball (in meters above the ground) t seconds after being hit is modeled by

h(t)=-5t^2+30t

1) Rewrite the function in a different form (factored or vertex) where the answer appears as a number in the equation.

2) How many seconds after being hit does the ball reach its highest point?

__________seconds

Answers

Answer:

[tex]\huge\boxed{\text{1. } h(t) = -5(t-3)^2 + 45}[/tex]

[tex]\huge\boxed{\text{2. 3 seconds}}[/tex]

Step-by-step explanation:

If we're looking for the point at with the ball reaches its highest point, we want to find the graph's vertex. In order to get the equation into a form with the vertex in it, we need to convert the equation into vertex form. This is an equation in the form [tex]y=a(x-h)^2 + k[/tex], h being the x value of the vertex, and k being the y value of the vertex.

In order to convert our equation, [tex]-5t^2+30t[/tex] into vertex form, we can algebraically manipulate it to get it into the form we want.

[tex]-5t^2 +30t[/tex] [tex]-5 \cdot t^2 + 30t[/tex] (Separate the -5 from the t^2)[tex]-5(t^2-6t+0)[/tex] (Factor out a -5)[tex]-5(t^2 -6t + (-3)^2 - (-3)^2 + 0)[/tex] (Completing the Square)[tex]-5((t-3)^2 - (-3)^2 + 0)[/tex] (Binomial Formula)[tex]-5((t-3)^2 - 9)[/tex] (Simplify)[tex]-5(t-3)^2 + 45[/tex] (Factor the -5 back in)

Therefore, our equation with the vertex in it is [tex]-5(t-3)^2 + 45[/tex]. To find the vertex, we can examine the equation to find the values of h and k in the formula  [tex]y=a(x-h)^2 + k[/tex] (where the vertex coordinates are (h, k)).

It seems that h is 3 and k is 45. Therefore, the coordinate of the vertex is (3, 45). Since it asks for how many seconds after being hit does the ball reach its highest point, we would take the x value since x represents seconds. This is 3. Therefore, the ball reaches its highest point after 3 seconds.

Hope this helped!


Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

B

Step-by-step explanation:

First you put all the variables with a negative exponent to the opposite side of the fraction, with the answer of 45m^2p^2v^16/15m^6p^8. You then simplify, or cancel out until the variable only remains on one side of the fraction. 3v^16/m^4p^6. So your answer is B

1. 7x - 2
If x = 3

2. 5x -2y
If x =3 and y = 4

Answers

1)

7x3 -2

21-2

19

2)

5x3 - 2x4

15-8

7





A triangle has two sides of length 4 and 13. What is the smallest possible whole-number length for the third side?

no trolls!

Answers

Answer:

9 i think but make sure

Step-by-step explanation:

well, a squared+b squared=c squared

       13 squared-4 squared is 9 squared

I just need #1 plzzzz if you can do #2 and #3 as well I also need the work!! 20 points

Answers

#1 would be 12 cm as the actual length of the thermos! This is because the scale given is 1:3 right? if you find what number 1 is multiplied by to get 3, you will obviously have 3. then, the given length of the thermos would be multiplied by 3, so it would be 3 x 4, which would be 12!

-8th grader

What are the names of these polygons?

Answers

Answer:

1)Quidrilateral

2)Pentagon

Whiteboard markers cost $4.75 per set at an office supply store. Which equation can be used to determine the price, P, of n sets of these markers? (10 points)

a
P = 4.75n

b
n = 4.75P

c
P equals 4.75 over n

d
n equals 4.75 over P

Answers

Answer: P=4.75n

Step-by-step explanation:

Answer:

P=4.75n

Step-by-step explanation:

An online book store has 182 boxes of books in its warehouse. Each box has 32 books.

Part A
Which equation represents the best estimate of the total number of books in the warehouse?
180 × 30 = 5,400
180 × 40 = 7,200
190 × 40 = 7,600
200 × 40 = 8,000
Part B
Is the best estimate in Part A an underestimate or an overestimate? Explain.

It is an underestimate. The rounded value for 182 is less than 182, and the rounded value for 32 is less than 32. The estimated product must be less than the exact product.

It is an overestimate. The rounded value for 182 is greater than 182, and the rounded value for 32 is greater than 32. The estimated product must be greater than the exact product.

It is an overestimate. The rounded value for 182 is greater than the rounded value for 32. The estimated product must be greater than the exact product.

It is an underestimate. The rounded value for 32 is closer to 32 than the rounded value for 182 is to 180. The estimated product must be less than the exact product.

Answers

part a:
180 x 30

part b:
underestimate. the rounded value is less than the original number

Answer:

Part is A. Part B is underestimate. Part C (for the choose drop-off boxes are these: 1# < 2# < 3# <

Step-by-step explanation:

I took the test, hope it helps.

Ms. Ringer asked her class, "What are the favorite colors of the students in our school?" Which student correctly describes Ms. Ringer's question?

Answers

Answer:

D

Step-by-step explanation: We know it's not A or B because a statistical question is a question that will vary. D has that exact response while C is not exactly what a statistical question is.

The student who correctly describes Ms. Ringer's question would say that it is an open-ended question.

What is an expression?

A term is composed of one mathematical expression. A single variable (a letter), a single integer (positive or negative), or a number of variables that have been multiplied but never added or subtracted are all examples of single variables. There is a number in front of certain words that are variables. A word or phrase is preceded by a coefficient.

Ms. Ringer asked her class, "What are the favorite colors of the students in our school?"

The student who correctly describes Ms. Ringer's question would say that it is an open-ended question,

as there are many possible answers to the question and it does not have a single, definitive answer.

To learn more about the expression;

brainly.com/question/24242989

#SPJ2

Are the following functions linear or nonlinear? Drag the tiles to complete the statements.
Tiles may be used once, more than once, or not at all.

Answers

Answer:

I don't see anything like a graph or anything.

Answer:

Need help

Step-by-step explanation:

Estimate 95.63+66.552 by first rounding each number to the nearest whole number

Answers

Answer:

162

Step-by-step explanation:

95.63 rounds up to 96

66.552 stays at 66

96+66=162

A line passes through the point (0,2) and has a slope of -1/4. What is the equation of the line

Answers

Answer:

Step-by-step explanation:

use point-slope formula [y-y1 = m(x-x1) ] with the given info

P=(x1,y1) = (0,2)  and slope m = -1/4

y-2=-1/4(x-0)

y-2= -1/4x

now try to move things till you get the slope-intercept form [y=mx+b]

y= -1/4x+2

good all done :)

Graph a line with a y-intercept of -3 and a slope of 43 .

Answers

Answer: HERE IS THE GRAPH AND PLS CORRECT ME IF I"M WRONG :)

Step-by-step explanation:

Simplify.
√64x12
Assume that the variable x represents a positive real number.
I
Х
$
?.

Answers

Answer:

[tex]=32 \sqrt{3x[/tex]

Step-by-step explanation:

Given that:

[tex]Simplify \ \sqrt{(64x)(12)}[/tex]

[tex]When \ simplifying \ radicals, we \ split \ them \ up by \ their \ factors[/tex]

i.e.

[tex]=\sqrt{64} \ * \sqrt{12} \ * \sqrt{x}[/tex]

[tex]=8 \ * 4\sqrt{3} \ * \sqrt{x}[/tex]

[tex]=32 \sqrt{3x[/tex]

simplify the expression t+2+6t

Answers

Answer:

2+7t

Step-by-step explanation:

combine like terms

t+2+6t

2+7t

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