Mathematics High School

What is the first step to solving this by substitution?
1 point
y = 2x + 1
y = 4x - 1
O put a zero in for x
O put a zero in for y
O find the slope
O Replace the right side of the top equation with the y on the bottom equation

What Is The First Step To Solving This By Substitution?1 Pointy = 2x + 1y = 4x - 1O Put A Zero In For

Answers

Answer 1

Answer:

Last answer: replace right side of the top equation with the y on the bottom

Step-by-step explanation:

Related Questions

I will fail if i dont pass this test plzz help!!​

Answers

Answer:

i dont know if this will help but i searched it up and it and it gave me a graph, i felt bad so here

Step-by-step explanation:

PLEASE HELP ASAP A student solved this system of equations.
y=-3x+8
y=2x +4
What is the x-coordinate of the solution to this system of equations?
A -12.0
(B) 0.8
C 2.4
D 4.0

Answers

Answer:

X=.8

Step-by-step explanation:

please help me out. i needa turn it in by the ena the day. Ill mark you brainliest

Answers

Answer:

B

Step-by-step explanation:

Answer:

B   The rate of change is constant and represents the cyclist's speed of 1120 ft/min

Step-by-step explanation:

The difference is always 1120ft for each minute

Polygon B is a scaled copy of Polygon A. What is the scale factor from A to B?

Answers

Answer:

scale factor = 2

Step-by-step explanation:

Determine the ratio of corresponding sides, image to original

scale factor = [tex]\frac{5}{2.5}[/tex] = 2

Answer:

2

Step-by-step explanation:

If one angle in Polygon A is 2.5

and one angle in polygon b is 5

5/2.5= 2

the answer is 2

math plz help me due day its so close

Answers

Answer:803.84

Step-by-step explanation:

3.14 x (16^2) = 803.84.  

16^2 is 256 so multiply that by 3.14

The two-dot plots below show the number of miles run by 14 students at the beginning and end of the school year.

Answers

Answer:

Step-by-step explanation:

From the dot plot of start of school year,

Maximum value of the miles run = 10

Minimum value of the miles run = 5

Range of the data set = 10 - 5

                                    = 5 miles

From the dot plot of End of school year,

Maximum value of the miles run = 10

Minimum value of the miles run = 6

Range of the data set = 10 - 6

                                    = 4 miles

The range at the start of the year was 5 miles and the range at the end of the year was 4 miles.

what percent of 25$ is 5$ no links​

Answers

Answer:

20%

Step-by-step explanation:

5 20% = 100%

Answer:

20% is 5$.

Step-by-step explanation:

Ok - these always need a bit of a read to make sure we're answering the right thing.

"What percent..." asks us for a percentage. Ok - good.

"...of 25..." asks us to take the number (25) and multiply it by the percentage we're going to find.

"...is 5" tells us what the answer we're looking for is. So we have:

25  ×  P  =  5

- 25 times some percentage equals 5.

We can treat P as a variable and so can divide both sides by 25:

p = 5/25 = 1/5 = 0.2 = 20%.

The room shown in the diagram is being carpeted.
5 ft
5 ft
11 ft
12 ft

*not drawn to scale
How many square feet of carpet are needed for this room?
O A. 90 ft2
OB. 97 ft2
O C. 107 f12
OD. 115ft2
E. 157 ft2

Answers

Answer:

D

Step-by-step explanation:

1. divide 12.4 by 4

2. divide the fraction by 4/5 divide 1/15

3. ehat is the quotient between the mixed number 2 1/2 and 1/4

Answers

1) 3.1
2) 12
3) not sure

find the unit price of 3 cans of cat food for $0.85​

Answers

Answer:

$0.28

Step-by-step explanation:

Hi guys! It’s 11:44 PM for me and this is due tomorrow so can u guys plsss help! I’d really appreciate it :) hope u guys have a good day!<333 /spam cuz no one is helping lol but it’s ok I’ll keep trying to spam!/

Answers

Answer:

I wish I could help but I'm not good with these type of questions :(( .

Step-by-step explanation:

I hope someone does help you tho

Answer:

I think they have the same potential energy

Step-by-step explanation:

9/12 is equal to 3/4

PLEASE HELP IM STUCK

Where is ( 0, -5 ) on the coordinate plane?

Quadrant III

x Axis

y Axis

origin

Quadrant IV

Quadrant I

I

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y axis and quadrant IV

If you could help it would be good

Answers

Answer:

What are you trying to solve?

Step-by-step explanation:

Answer:

16. length=4

18. length=7

Step-by-step explanation:

Formula = area=length x height

16. 44=11xL

44 divided by 11 equals 4

18. 49=7xL

49 divided by 7 equals 7

In which quadrants would sine and cosine have the same sign (positive or negative)? Explain your answer.

Answers

The quadrants in which sin and cosine will have same sign are :

=》1st quadrant - both have positive values

=》3rd quadrant - both have negative values

The volume and the radius of a cone and cylinder are the same, and the height of the cone is 24 find the height of the cylinder

Answers

Answer:

8

Step-by-step explanation:

8

Help please............

Answers

Answer: 21 units^2

explanation: mark me brainiest

which expression is equivalent to 24 x -108

Answers

Answer:

I think the answer to 24 x-108 is -2592

Answer:

-2592

Step-by-step explanation:

Question #3: Solve for a Side
Find the missing side. Round to the nearest tenth.

Answers

Answer:

x=8.332451

Step-by-step explanation:

SOH CAH TOA

Tan(48) = 10/x

1.200127 = 10/x

1.200127x = 10

x=8.332451

HELP ASAP! Find x.
Round to the nearest tenth:

Answers

Answer:

answer is in the image. hope it helps.

evaluate 9 m+7 n if m=-7 and n=4

Answers

Answer:

-35

Step-by-step explanation:

9m+7n

m=-7

n=4

Plug the numbers into the equation

9(-7)+7(4)

-63+28

=-35

6x - 5y = 11
y = 7x + 21

Answers

Answer:

x= -4, y= -7

Step-by-step explanation:

First, label the 2 equations.

6x -5y= 11 -----(1)

y= 7x +21 -----(2)

Substitute (2) into (1) so that the first equation is only written in terms of x.

6x -5(7x +21)= 11

6x -5(7x) -5(21)= 11 (Expand)

6x -35x -105= 11

-29x= 11 +105 (Simplify, +105 on both sides)

-29x= 116

x= 116 ÷(-29)

x= -4

Substitute x= -4 into (2):

y= 7(-4) +21

y= -28 +21

y= -7

Can someone tell me what x= to and y=?

Answers

Answer:

x = 112

y = 76

Step-by-step explanation:

x + 68 = 180

x = 180 - 68

x = 112

y = 76 (Because of alternate interior angles)

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HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Answers

Answer:

7

Step-by-step explanation

The first thing you do is plug in zero for y the you solve it

The given equation when you plug 0 in for y is

0=-5x²+25x+70

The equation of a line is y = 3x - 6
What is the y-intercept of the line?
Enter your answer in the box.
TI

Answers

Answer:

-6

Step-by-step explanation:

Answer:

The y- intercept is -6

y= mx+b is the formula  the y- intercept will always be "b"

pls hElp Me IF CORRECT I Will make u brainliest Simplifi it

Answers

The answer is 2^9. Cancel out the bottom numbers. Then multiply.

Write a congruence statement for the pair of triangles

Answers

C.
The others have sides that do not correspond.

hii! help asap. i’ll give brainliest thanks!

Answers

Answer D

Step-by-step explanation:

I need help badly if you can help thank you very much

Answers

Answer:

(24,4,84)

Step-by-step explanation:

Since they restricted our domains to certain x values, we can find the range by plugging in the x values to find it y value or output.

[tex]f( - 2) = 5( { - 2}^{2} ) + 4[/tex]

[tex]5(4) + 4 = 24[/tex]

[tex]f(0) = - 5( {0}^{2} ) + 4 = 4[/tex]

[tex]5(4) {}^{2} + 4 = 84[/tex]

So our range is (24,4,84)

Answer:

f(x)=5x²+4

f(-2)=5×(-2)²+4

5×4+424

f(0)=5(0)²+4

0+44

f(4)=5×(4)²+4

5×16+484

so the range of function{-2,0,4}is{24,4,85}

hope it helps.

Q2.
(a) Solve
f+ 2f + f = 20

Answers

Step-by-step explanation:

apskaičiuoti trikampių perimetrą?

f + 2f + f = 20
4f = 20
Divide both sides of the equation by 4
f = 5

Evaluate the expression for k = 2. –9 + 7k =

Answers

Answer:

k = 7/6

Step-by-step explanation:

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