Mathematics High School

Help!please do this fast!!!

Help!please Do This Fast!!!

Answers

Answer 1

Answer:

The ordered pair works for the first equation on the top, but not the second equation on the bottom.

Step-by-step explanation:

You have to plug in the x and y values into the equations:

x - 2y = -6

2 - 2(4) = -6  

That equation works.

...now for the next one...

3x + 2y = 12

3(2) + 2(4) = 12

That equation doesn't work.

Hope this helps!

Answer 2
It is not because when you plug x=2 and y=4 into the second equation, it is not a true statement. In order for the ordered pair to apply to the system, there needs to be a true statement for BOTH equations not just the first one.

Observe:

2-2(4)=-6
-6=-6 this is a true statement

3(2)-2(4)=12
6-8=12
-2≠12 this is a false statement

Therefore the solution 2,4 doesn’t apply to the system since it only applies to one of the equations

Related Questions

In each of the following graphs, the two given polygons are similar. Write precisely a single dilation (coordinates of center and coefficient) by which the image (labeled with primed letters) was obtained. Will Give Brainiest!!!!!

Answers

Answer:

Center: (0,0)   coefficient: [tex]\frac{1}{3}[/tex]

Step-by-step explanation:

The side of the smaller polygon is 1/3 the size of the larger one, and that is why the coefficient is 1/3.

Polygon MNPQ was dilated by a scale factor of 1/3 and center of dilation (0, 0) to create M'N'P'Q'.

What is dilation?

Dilation is the increase or decrease in the size of a figure by a scale factor of k, thereby creating an image.

From the diagram:

Scale factor = N'P' / NP = 2/6 = 1/3

Center = (0, 0)

Polygon MNPQ was dilated by a scale factor of 1/3 and center of dilation (0, 0) to create M'N'P'Q'.

Find out more on dilation at: https://brainly.com/question/10253650

2. In Ella's math class, there are 12 girls and 15 boys. Which of the following is the ratio of boys to girls in Ella's math class?
A 12/27
B 12/15
C15/12
D27/12​

Answers

Answer:

C. 15/12

Step-by-step explanation:

15 boys and 12 girls

Answer:

b

Step-by-step explanation:

12/15

80% of n is 32 what is the value of n​

Answers

Answer:

n=40

Step-by-step explanation:

divide 32 by 80

32/80=0.4

0.4x100=40

n=40

In ΔFGH, h = 9.6 inches, f = 2.5 inches and ∠G=78°. Find the length of g, to the nearest 10th of an inch.

Answers

Answer:9.4

Step-by-step explanation:

Answer: 9.4

Step-by-step explanation:

S.A.S.→Law of Cosines

a^2=b^2+c^2-2bc\cos A

g^2 = 9.6^2+2.5^2-2(9.6)(2.5)\cos 78

g^2 = 92.16+6.25-2(9.6)(2.5)(0.207912)

g^2 = 92.16+6.25-9.97976

g^2 = 88.43024

g=√88.43024 ≈9.404≈9.4

will give brainliest

Answers

I believe it should be 5

Step-by-step explanation:

I believe this because 16÷8=2 so 10÷2=5

PLEASE HELP IMMIDEATIALY BFHBGDWAHDW

Answers

Answer:

zeros and AoS

Step-by-step explanation:

zeros, x = (1 , -7)

AoS:x =-1

Write an equation in slope-intercept form for the line with slope 3/5 and y-intercept -9

Answers

Y=3/5x -9 I’m pretty sure it’s this

pls help w fractions math question

Answers

Answer:

 2 5/6 is greater so Jenna read more

Step-by-step explanation:

Answer:

Antoine

Step-by-step explanation:

u see 8hrs divided by 1.25 hrs equals 6.4 Chapters and 6hrs/ 17/6 = 2.12 and that x3 = 6.36 as u can see 6.4 > 6.36 there u o have a good day bye please give brainliest im only 9 no cap

2.
Write an equation of a line with the given slope and y-intercept.

m = 1, b = 4


A. y = –1x + 4


B. y = 4x + 1


C. y = x + 4


D. y = x – 4

Answers

This answer to this is C. y=x+4

Answer:

the answer is C

Step-by-step explanation:

You would take and the y axis would equal x since the m is 1 it would just be x and then since you have the 4 you would just add it to the y=x and then it would be y=x+4

HELP WILL MARK BARINLIEST IF RIGHT!!!

Answers

Step-by-step explanation:

Hence the value of x is 70.14cm.

YO SOMEBODY HELP PLS IM STUCK

Answers

Answer:

X is less than or equal to -3

Hope that answers your question

Some help me it’s timed

Answers

Answer:

43 m. Perimeter is all the sides added together.

Simply (2x^5)^2(4x^3)

Answers

The answer is 16x^13

4.6 isosceles and Equilateral Triangles

Answers

Step-by-step explanation:

3).20⁰

4).60⁰

180-70+70_180-140__20

Anyone else having to do school work during spring break because edgenuty sucks?

Answers

no I’m not on spring break hahaha

1. What is the product of 1/2x - 1/4 and 5x^2+6
show your work

Answers

Answer:

Step-by-step explanation:

First you would make the equation

(1/2x - 1/4)(5x^2 + 6)

afterwards you would multiply like normal binomials\

5/2x^3 + 3x - 5/4x^2 - 6/4

Then simplify

5/2x^3 - 5/4x^2 + 3x - 3/2

Remember to put them in order from the most roots to the least.

factorise 36x³y-225xy³​

Answers

hihere is ur answer:

9xy(2x+5y)(2x-5y)

hope it’s good!!

Rondel's parents borrow $5000 from the bank for a new car. The interest rate is 6% per year. How much simple interest will they pay if they take 2 years to repay the loan?

$600.00
$500.00
$480.00
$540.00

Answers

Answer:

600

Step-by-step explanation:

6 percent of 5000 is 300. 300x2=600.

Sorry if im wrong

Evaluate: 5*5/7
enter your answer as a proper fraction or mixed number

Answers

Answer:

3 4/7

Step-by-step explanation:

5 times 5/7 = 25/7

= 3 4/7

Answer:

3 4/7

Step-by-step explanation:

5/1 x 5/7 = 25/7 = 3 4/7

Can u guys help me please

1. What % of 240 is 60?

2. .90 is what percent of 120?

3. 24 is 96% of what number?​

Answers

1.) 25%
2.) 75%
3.) 25

there are 72 boys and 90 girls on a math team for the next competition mr. Johnson would like to arrange all the students in equal rows with only girls or only boys in each row. What is the greatest number of students that can be in each row ​

Answers

the greatest number of students that can be in each row is 18 !!:)

Is this right? Will mark branliest for the correct answer

Answers

Answer:

No

Step-by-step explanation:  

it’s the first one :)

Drag each number to the correct location in the image. Each number can be used more than once, but not all numbers will be used. consider the equation below.

Answers

Answer:

Step-by-step explanation:

A weather station on the top of a mountain reports that the temperature is currently 0 and has been falling at a constant rate of 3 degrees per hour. Find each temperature. What was the temperature: 1 hour ago? degrees 3 hours ago? degrees

Answers

Answer:

Because I SAVAGE

GK IT"S WRONG AHAHHAHHAHA

Write an
expression using scale factor, k, for each dimension?
1D
2D
3D

Answers

the correct answer is1D k 2D k 3Dk

In triangle ABC, the sum of the measures of angle A and angle B is 57°. What is the measure of and C?

Answers

Answer:

I think it's 123 if not sorry

Step-by-step explanation:

all you need to do is 180 - 57 to get your answer

In ΔTUV, the measure of ∠V=90°, the measure of ∠U=70°, and UV = 9.6 feet. Find the length of TU to the nearest tenth of a foot.

Answers

​

28.1 feet

explaination

\cos U = \frac{\text{adjacent}}{\text{hypotenuse}}=\frac{9.6}{x}

cosU=

hypotenuse

adjacent

​

=

x

9.6

​

\cos 70=\frac{9.6}{x}

cos70=

x

9.6

​

x\cos 70=9.6

xcos70=9.6

Cross multiply.

\frac{x\cos 70}{\cos 70}=\frac{9.6}{\cos 70}

cos70

xcos70

​

=

cos70

9.6

​

Divide each side by cos 70.

x=\frac{9.6}{\cos 70}=28.0685\approx 28.1\text{ feet}

x=

cos70

9.6

​

=28.0685≈28.1 feet

Type into calculator and roundto the nearest tenth of a foot.

Please write a persuasive essay on why parents are more important than peers.​

Answers

Some points you could make are:
Disclaimers: some of these points count if everyone has good parents
Parents always have their child’s best interest in mind (not always but for this scenario well imagine)
Parents can help counteract peer pressure
Parents will always be there for their child
Parents influence a child’s values

Find the exact value of the expression: -6 3/5 - (-7 4/15) + 2 1/5
plzzzzzzzzz

Answers

Answer:

2 13/15

43/15

Step-by-step explanation:

Help ASAP PLEASEEE ILL GIVE BRAINLIEST

Answers

Answer:

3/18 = 6/ DG

Step-by-step explanation:

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