Which matrix equation represents this linear system?
2x-5y=-7
4x+3y=-1

Which Matrix Equation Represents This Linear System?2x-5y=-74x+3y=-1

Answers

Answer 1

Answer: C

Step-by-step explanation: I just took the exam


Related Questions

can I get help someone​

Answers

Answer:

m ≤ 4250

Step-by-step explanation:

What we know:

Mr. Loureiro has to pay $25 plus 10 cents every mile.

The equation becomes 25 + 0.1x = 450

25 + 0.1x = 450

0.1x = 450 - 25

0.1x = 425

x = 4250

So, Mr. Loureiro can travel no more than 4250 mi. (m ≤ 4250)

I am super confused


A small aquarium holds 70% as much as a large aquarium. If the small aquarium holds 35 liters, how many liters does the large aquarium hold?

Answers

Answer:

50

Step-by-step explanation:

so in other words, 35 is 70% of something. So you can divide 35 by 0.7 to get your answer.

Answer:

24.5 litres I guess is the answer for the question

Kevin has five less than twice the number of baseball caps Steph has. If Kevin has 13 baseball caps, how many baseball caps does Steph have?

Answers

Answer:

21

Step-by-step explanation:

13x2=26-5=21 so thats how I got the answer

Could you answer this below plz?

Answers

Answer:

the first one

Step-by-step explanation:

i think

solve for both x and y in the following diagram , i’m confused

Answers

Answer:

HII

Step-by-step explanation:

X= 40

need help solving #8

Answers

Answer:

7)[tex]2^x=2^8x-15[/tex]

Apply exponents rules

[tex]x=8x-15[/tex]

Solve [tex]x=8x-15: x=\frac{15}{7} \\[/tex]

Answer: [tex]x=\frac{15}{7} \\[/tex]

8)[tex]4^x=2^x+1\\2x=x+1\\x=1[/tex]

Answer : [tex]x=1[/tex]

9)[tex]5^x+3=7^x\\(x+3) in (5)=xln(7)\\x=\frac{3ln(5)}{in(7)-in(5)}[/tex]

Answer: [tex]x=\frac{3ln(5)}{in(7) -in(5)}[/tex]

Step-by-step explanation:  

PLEASE MARK ME AS BRAINLIEST

the shapes below are mathematically simillar ​

Answers

Answer:

6

Step-by-step explanation:

Explain how you know when 2 ratios are proportional.​

Answers

Answer:

Ratios are proportional when they represent the same relationship.

Step-by-step explanation:

Such as: finding equivalent fractions

Answer:

Ratios are proportional if they represent the same relationship.

Step-by-step explanation

One good way to tell is to make them fractions and then reduce them. If the reduced fractions are the same, you ratio is proportional! Good luck !

PLZ ANSWER, DUE 2NITE!!!!!!:
Two students in the same Spanish class, Maya and Dylan, plan to get together after school to make vocabulary flashcards. Maya started on the project yesterday and has already made 15 flashcards. Dylan hasn't started yet. Since Maya makes 3 flashcards per minute and Dylan makes 6 flashcards per minute, Dylan will soon have the same number of flashcards. How long will that take? How many flashcards will each student have at that point?

Answers

Answer:

5 min

15     0

+3    +6

+3    +6

+3    +6

+3     +6

+3     +6

__________

30    30

using the line of best fit for the data in the table, what is the approximate predicted monthly expense for owning 3 pets?

Answers

Answer:$76

Step-by-step explanation:

PLEASE HURRY
In a local city, the temperature at noon is Negative 3 degrees Celsius. The temperature is expected to decrease by 2.5 degrees Celsius each hour until the temperature reaches Negative 18 degrees Celsius. How many hours will it take for the temperature to reach Negative 18 degrees Celsius? 6 hours 7 hours 7.2 hours 8.4 hours

Answers

Answer:

6 hours

Step-by-step explanation:

-3-2.5-2.5-2.5-2.5-2.5-2.5=18

srry if I took too long

Answer:

6 HOURS

Step-by-step explanation:

The correct answer would be 6 hours or A!

Hope this helps! Have a great day! :))

ILL GIVE YOU BRAINLIEST ONKY IF YOU LIKE ALL MY QUESTIONS

Answers

Answer:

THEIR I DID IT

Step-by-step explanation:

Answer:

NAh Returned the favor!

Step-by-step explanation:

5(3m+n)?
What’s the answer? and please give me a step by step explanation I wanna understand it for the upcoming test!

Answers

Answer: 15m + 5n

Step-by-step explanation:

so, first off, we take the number outside of the parentheses and multiply it by everything that's inside of the parentheses.

(5)3m + 5(n)

then, we just multiply all of those together.

15m + 5n

plsssss help im honestly brain dead

Answers

Answer:

same but like 123

Step-by-step explanation:

Answer:

the slope represents minutes per miles.

Step-by-step explanation:

the other 3 are wrong

(11y + 19) °
8x °
96 °

Answers

Answer:

lol 96

Step-by-step explanation:

5x10^5+2x10^4+8x10^2

Answers

Answer:

52800

Step-by-step explanation:

Answer:

520800

Step-by-step explanation:

ive done this on.

The square root of the quotient of a number n and 3 is equal to the square root of 4 less than the number. Which of the following is the value of n?

Answers

Answer:

6

Step-by-step explanation: You can set up the equation: [tex]\sqrt{\frac{n}{3} }[/tex] = [tex]\sqrt{n-4}[/tex] You square both sides to cancel out the squares which leaves you with [tex]\frac{n}{3}[/tex] = n - 4. Then you just solve as normal which ends you up with an answer of 6. You can check this by plugging 6 back into the equation and see that you end up with [tex]\sqrt{2}[/tex] on both sides.

If the coordinates of point E are (-4, y), what is the value
of y?
O -8
O -4
O0
O8

Answers

-4 of course .........

The value of y is -8

What is slope of the line?

"The slope of tee line passing through points [tex](x_1,y_1),(x_2,y_2)[/tex] is [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]"

What is y-intercept?

"The point at which the graph intersects the Y-axis."

What is slope intercept form of the line?

"y = mx + c, where m is the slope of the line and c is the Y-intercept."

For given question,

We have been given the graph of a line.

From the graph, we can observe that the line is passing through the points (4, 4) and (-6, 0)

Using slope formula the slope of the line would be,

[tex]\Rightarrow m=\frac{4-(-6)}{4-0}\\\\\Rightarrow m=\frac{10}{4}\\\\\Rightarrow m=\frac{5}{2}[/tex]

Also, the line intersects y-axis at y = 2

This means the y-intercept is c = 2

Using the slope-intercept form of the line the equation of the line would be,

[tex]y=mx+c\\\\y=\frac{5}{2}x+2[/tex]

Point E(-4, y) lies on the given line.

So, this point satisfies the equation of the line.

[tex]\Rightarrow y=\frac{5}{2}(-4)+2\\\\ \Rightarrow y=-10+2\\\\\Rightarrow y=-8[/tex]

Therefore, the value of y is -8

Learn more about the equation of the line here:

https://brainly.com/question/21511618

#SPJ3

Austin correctly answered 80% of the questions on the geography quiz. Liz answered 42 of the 50 questions correctly. compare their scores

Answers

Answer:

Liz got a higher score than Austin.

Step-by-step explanation:

Since 42 divided by 50 is 82, as a percentage is then 82%. Austin has a 80% which most likely means, if on the same quiz, that he got a 40 out of 50.

Isaiah bought a total of 22 pieces of candy. The tootsie rolls cost 3 cents each and
the jolly ranchers cost 5 cents each. If Isaiah spent a total of 90 cents, how many
JOLLY RANCHERS were purchased?
A) 11
B)8
C) 10
O 12
07

Answers

i think the anwser should be 12

Today, everything at a store is on sale. The store offers a 30% discount.
The discount price of a hat is $14? What is the regular price?

Answers

The regular price of the hat is $18.20?

What equation is a proportion?

A. 1/3 = 1/4
B. 3/4 = 6/9
C. 5/8= 20/32
D 7/9 = 21/28

Answers

Answer:

c. 5/8= 20/32

Step-by-step explanation:

because 5*4=20 and 8*4=32

i need help with geometry test

*image 1 goes with this one
Name the image. *
Ray
Point
Line
Line Segment

Find the distance between (-8,2) and (-6,-1). *
Option 1

Option 2

Option 3

Option 4

Give another name for a plane containing point A. *
*image 2 goes with this*
plane DEA
plane j
plane CDF
Plane F

Part of a line and has two endpoints *
*image 3 goes with this*
Point
Line
Angle
Line Segment

Name the image.
*image 4 goes with this*
Angle
Line
Ray
Line Segment

Name 4 collinear points *
*image 5 goes with this*
H, M, N, and O
M, N, O, and P
H, N, K, and I
J, K, L, and O

What is the term for a location in space that has no shape or size? *
Point
Line
Ray
Line Segment

If M is the midpoint of XY, find the coordinates of X if M(-3, -1) and Y(-8, 6). *
1 point
(-8,-8)
(2,-8)
(2,-6)
(-8,-6)

A line that contains point M. *
image 6 goes with this*
line p
line q
line r
line NH

Find the midpoint between (-1,-5) and (-3,9). *
(2,2)
(-3,2)
(-2,2)
(-2,7)

Answers

Answer:

1) line segment

2) square-root of 13.

3) plane F

4) Ray

5) I think the wrong image is attached, but a point would just be a dot, a line would have one dot then an arrow on the other end, an angle would be 2 lines connected with an emphasis on what's going on in between the 2 lines, a line segment is 2 dots on both ends of a line.

6)H N K I

7) (2,-8)

8) line p

9) (-2, 7)

Step-by-step explanation:

For the distance between 2 points, do (x2-x1)^2+(y2-y1)^2 then take the square root of that.

For naming a plane, as long as it is an uppercase cursive letter it is a plane.

Rays are lines without the dot on the end.

Collinear points are points that lie on the same line.

Midpoint method is finding the average between the x coordinates then the y coordinates, so think (x1+x2)/2, (y1+y2)/2, but this can be confusing with negative distances, so just think of it as on a number line, from -1 to -3 they are 4 apart, so the average between them is -2.

What is the value of x if x^1/2=64^1/3

Answers

Answer:

x=16

Step-by-step explanation:

[tex]x^{\frac{1}{2} }=64^{\frac{1}{3 } }=(4^3)^{\frac{1}{3} }=4^{3 \times \frac{1}{3} }=4 \\squaring\\x=4^2=16[/tex]

I think the answer is 16

A hairdresser receives a discount on each comb purchased. The original price of each comb is x dollars. The hairdresser purchases 15 combs for a total of (15x-45) dollars. By how much is each comb discounted?

Answers

Answer:

$3

Step-by-step explanation:

Given that:

Price of each comb = $[tex]x[/tex]

15 combs were purchased in = $[tex](15x-45)[/tex]

To find:

Amount of discount offered on each comb.

Solution:

First of all, let us calculate the price of 15 combs at the price of $[tex]x[/tex] each.

Original Price of 15 combs = Price of one comb [tex]\times[/tex] Number of combs = $15[tex]x[/tex]

Now, there is some discount provided on the purchase of 15 combs.

Discount offered on 15 combs = Original price of 15 combs - Discounted price of 15 combs = [tex]15x- (15x-45)[/tex] = $45

Discount offered on each comb = Discount on 15 combs divided by 15

Discount offered on each comb = [tex]\frac{45}{15}[/tex] = $3

need this quick yal. name the angle in 4 different ways

Answers

Answer: <def, <fed, <e, <2

Step-by-step explanation:

Not sure about angle 2 but I’m sure of the rest

Hope it helps

How many of you guys are wearing "Into The Night" by Bath & Body Works right now?​

Answers

not me in wearing toasted coconut snowball
10/10

Answer:

I am *oop*

Step-by-step explanation:

how can you split 1,162 in threes

Answers

Answer:

387 i think

i just divided 1162 by 3

NEED HELP ASAP! WILL MARK BRAINLIEST!

The pressure exerted by a certain liquid at a given point varies directly as the depth of the point beneath the surface of the liquid. The pressure at 60 feet is 180 pounds per square inch. What is the pressure at 10 ​feet?

Answers

The answer would be 30 since for 180 pounds and 60 feet you would need to divide 180 by 60 to get the unit rate for the pressure and then multiply by 10 which would get you 30. Correct me if I’m wrong. Hope it helps :)

10. Simplify:
-7 (3Z + 5+ – 39)

Answers

Answer:

-21z+238

Step-by-step explanation:

Use distributive property

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