If a line has a slope of -4, what is the y-intercept if it also passed through the point (-2, 7)?

Answers

Answer 1

Answer:

As slope is found by and our points are ( ) ( ) for the minimum and maximum heights, respectively, we can reason that the slope of the best fit line should be While this is by no means a perfect slope, it does provide us with a good estimate for the actual slope of the best fit line.Using the information, our equation has only one more variable ...

Step-by-step explanation:

Answer 2

Answer:

-1

Step-by-step explanation:

y=mx +c

y= -4X + c

7 = -4 x -2 + c

7= 8 + c

7-8 = c

-1 = c


Related Questions

PLEASE HELP order the sides of EBD from longest to shortest (I’ll give brainlest btw)

Answers

6969- 666 #= dmmekekeoeowowo se*

If the discriminant of an equation is 10, then the roots are
A) real, rational, and unequal
B) real, irrational, and unequal
C) real, rational, and equal
D) imaginary

Answers

Answer:

b

Step-by-step explanation:

Since the given discriminant is 10, hence the roots will be real, irrational, and unequal

Discriminant of an equation

The discriminant is used to determine the nature of the roots of a quadratic equation. The formula for finding the discriminant is expressed as:

D = b^2 - 4ac

If D > 0, the nature of the roots are real, irrational, and unequal If D <  0, the nature of the roots are imaginary

Since the given discriminant is 10, hence the roots will be real, irrational, and unequal

Learn more on discriminant here: https://brainly.com/question/24730520

Pretty Petals flower shop is having a 20% off sale on carnation flower arrangements. Beth has ordered a boquet that is originally $24.56. What is the sale price?
Please answer seriouly if you dont i will report

Answers

Answer:

19.648

Step-by-step explanation:

because 24.56 / 5 = 4.912

4.912*4=19.648

3 feet
4 feet
inches
6 inches
Is Inches
What is the volume, in cubic feet, of the
cement used to make the steps? Show or
explain all of the steps you used to determine
your answer.

Answers

Answer: 12 for the main square

Step-by-step explanation:

take the 4 and the 3 and multiply it, makes 12. you see how each stair is 6 inches and there is 3 full steps which makes it 1.50 feet. 12 x 1.50 is 18. that makes your main square. I'm sorry but I cant really help you with the steps but that was also confusing to me.

I need help with this

Answers

Answer:

10 units²

Step-by-step explanation:

In the second photo.

x^3+y^3+z^3-3xyz=2021
Find x,y, and z.

Answers

Answer:

x

=

2021

3

y

z

+

X

3

3

y

z

+

y

2

3

z

+

z

2

3

y

Step-by-step explanation:

Find the area of the wrestling mat.

Answers

Answer:

804.25

Step-by-step explanation:

The area of a circle = pi(r)^2

Given the diameter, we can find the radius by dividing the diameter in half.

r=16

pi(16)^2 = 804.25

Answer:

803.84 OR 256 pi

Step-by-step explanation:

Ok!

Step 1:

The area of a circle is Pir^2. (Sorry it’s pi r squared, I don’t have the pi symbol or the exponent function on my iPad.)

R is radius. Remember, radius is half the diameter.

32/2=16.

Step 2:

Do 16^2.

You should get 256.

Step 3:

Multiply 256 by Pi. Pi is 3.14. You should get 803.84.

Step 4:

803.84 should be the answer, I THINK (not sure) you can also write your answer as 256 pi. Depends on what your teacher wants. Hope this helps! Next time you can search up how to find the area of a circle, there are lots are tutorials!

PLSSSSS HELPPPPP REWARD BRAINLEISTTT

Answers

ANSWER:

number 1 is D, it moves to the right 4 times

number 2 is B, its a vertical stretch of 2

Evaluate the expression for n = 7

n^2+n+1

NO LINKS

Answers

Answer:

57

Step-by-step explanation:

7 times 7 or 7 to the power of 2 is 49 plus 7 is 56 and then plus 1 makes that 57

Answer:

57

Step-by-step explanation:

n^2+n+1 (n=7)

7^2+n+1

49+7+1

49+8

57

Find the circumference and area of the circle. Use 3.14 for π. Round to the nearest hundredth if necessary.

Answers

Answer:

2 x 3.14 x 13 = 81.64 m is your circumference

13^2 x 3.14

169 x 3.14 = 530.66 m^2 is your area

Name the following
transformations

Answers

Answer:

reflection, rotation, and translation.

helppppppppp meeeeeeeeeee

Answers

Answer:

68 in^2

Step-by-step explanation:

Area of two trapezoids:

(7+3)5 = 50

Area of two squares:

2(3x3) = 2(9) = 18

50 + 18 = 68

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

68

Step-by-step explanation:

3x3=9 (top square)

3x3=9 (bottom square)

(1/2) (5) (2) = 5 (triangle 1)

(1/2) (5) (2) = 5 (triangle 2)

(1/2) (5) (2) = 5 (triangle 3)

(1/2) (5) (2) = 5 (triangle 4)

10 x 3 = 30 (middle rectangle)

9+9+5+5+5+5+30=68

PLEASE HELP, DUE AT 11:59PM PST
All responses are appreciated

if f(x) = 9. Find x​

Answers

Answer:

x = 9

Step-by-step explanation:

Not sure if you posted the right thing, but if f(x)=9, then x simply is 9.

Use Pythagorean theorem to solve the following right triangles, put your answer in simplest radical form:

Answers

Answer:

Step-by-step explanation:I found the answer on this web[tex]^{}[/tex]site. It seems correct! Link Below!ly/3fcEdSx

bit.[tex]^{}[/tex]

I HAVE A MATH TEST PLZ HELP I'M GIVING OUT 50 POINTS PLZ

S.O.S I HAVE MATH

Answers

Answer:

Graph included as picture

Step-by-step explanation:

To solve this, plot the given points on the graph

Draw a line through them.

Now select two of those values and we'll find the rate of change.

We'll be using (1,-1) and (3,3)

To find rate of change we will be using the formula: [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

[tex]y_{2} = 3\\y_{1} =-1\\x_{2} = 3\\x_{1} = 1[/tex]

[tex]\frac{3-(-1)}{3-1} = \frac{4}{2} = 2[/tex]

So the rate of change is 2

You will use this rate of change for your other function because they both have the same rate of change

Since we have the rate of change, we can create the slope intercept form formula: y = mx +b

Just substitute for the variables we know

m = rate of change/slope = 2

b = y-intercept = -3

y = 2x + -3

[If you connected all the points in your graph, that's how you found the y-intercept]

Now we have to create the formula for the second function.

We know it will have that same slope of 2

so we have y = 2x + b

To solve for b we can plug in the values we do have which would be (x,y) of (3,6)

6 = 2(3) + b

Now solve

6 = 6 + b

6 (-6) = 6 (-6) + b

0 = b

b = 0

This mean that the y-intercept will be on (0,0)

Plot that point

Now we finish the formula

y = 2x + 0

Connect the dots, make sure the line continues on both of them past the dots and now you have your graph!

I've included a picture of the graph for your reference. I hope this helps, don't be afraid to reach out with further questions!

Can you help on this problem
r + s² at r = 4, s = 1
show work plz
NO LINKS

Answers

Answer:

5

Step-by-step explanation:

Given Question:

[tex]r + {s}^{2} [/tex]

Given values -

r = 4 , s = 1

Therefore putting their values in the question,

[tex]4 + {1}^{2} [/tex]

= 4 + 1

= 5 (Ans)

Hii pretty human, could pls help meeeee :((((((
The local fair charges a flat fee for admission plus an additional cost for ride tickets. Last year, Imran purchased 10
tickets and spent a total of $20. His friend, Anton purchased 21 tickets and spent a total of $36.50 at the fair. The
relationship between the # of tickets and total spent is linear. Algebraically determine the following:
a) The price per ticket.

b) The admission fee.

Answers

i'm really good at all kinds of math, but this doesn't make any sense.

Answer:

a.the price per ticket?

Write the decimal -1.2-- as a mixed number​

Answers

Answer: 1 1/5  

Step-by-step explanation:

A circle with its dimensions, in centimeters (cm), is shown.
What is the area, in square centimeters, of the circie?

Answers

Answer:

50.27

Step-by-step explanation:

Solve each equation. Get the variables on one side and the numbers on the other.

1) 4x - 3 = 2x + 9
2) -2x + 4 = 6x-20
3) 7x - 2 = 4x - 17
4) -3x + 5 = 10 - 4x
5) 9x + 2 = 16 + 2x

no links please, and show work

Answers

Answer:

1. 4x -3 = 2x + 9

  4x - 2x + 9 +3

  2x = 12

  x=6

2. -2x + 4= 6x -20

   -2x -6x = -20 - 4

    -8x = -24

     x=3

¿cuanto suman los angulos interiores de un hexagono? Escribe solo el numero que corresponda a la cantidad, sin el simbolo de grados

Answers

Answer:

La suma de los ángulos interiores de un hexágono regular es 720°

Step-by-step explanation:

Asumamos que el hexágono presentado en el enunciado sea regular, el cual es formado por seis triángulos equiláteros, Un ángulo interno del hexágono está formado dos ángulos laterales y vecinos de dos triángulos equiláteros, es decir, dos veces 60°, o sea, 120°. Si el hexágono regular tiene seis ángulos internos de igual medida, entonces la suma de los ángulos interiores es 720°.

Complete the equations below. 8.8 \div 4 =8.8÷4=8, point, 8, divided by, 4, equals \text{ tenths}\div 4 tenths÷4start text, space, t, e, n, t, h, s, end text, divided by, 4 8.8 \div 4 =8.8÷4=8, point, 8, divided by, 4, equals \text{ tenths} tenthsstart text, space, t, e, n, t, h, s, end text 8.8 \div 4 =8.8÷4=8, point, 8, divided by, 4, equals

Answers

Answer: first one is 88 tenths, next one is 22 tenths, and last one is 2.2    

Step-by-step explanation: i just pressed get help in khan academy ha ha,

The area of the rectangle is 65 yd^2,and the length of the rectangle is 3 yd less than twice the width. Find the dimensions of the rectangle

Answers

Answer: Length = 10cm

Width = 6.5cm

Step-by-step explanation:

Let the width of the rectangle be represented by x.

Therefore, the length of the rectangle will be: = (2 × x) - 3 = 2x - 3

Therefore area of a rectangle = length × width

x(2x - 3) = 65

2x² - 3x = 65

2x² - 3x - 65 = 0

2x² + 10x - 13x - 65 = 0

2x(x + 5) - 13(x + 5) = 0

(2x - 13)(x + 5) = 0

2x - 13 = 0

2x = 13

x = 13/2

x = 6.5

Width = 6.5cm

Length = 2x - 3

= 2(6.5) - 3

= 13 - 3

= 10cm

Therefore, the length of the rectangle is 10cm and the width is 6.5cm.

I need help please like right now thank you

Answers

X would equal 150 degrees as well because the 150 on the top row is in the same place as the x on the bottom row

Answer:

x = 150°

Step-by-step explanation:

t1 and t2 are parallel lines, so the line going across them have identical angles. Since 150° is already given on the section that crosses t1, we can assume the same value for t2.

In a school with 3014 students, a survey was conducted. From a sample of 200 students, 139 said that they prefer to listen to music while they do their classwork and homework.



Estimate the percentage of students at the school that prefer to listen to music while they work.

Answers

Answer:

2,095 students.

Step-by-step explanation:

3014/200 =  15.07 groups of students

15.07 groups x 139 students =  2094.73 students -> rounds to 2095

HELP ASAP. BEING TIMED AND WILL GIVE BRAINLIEST!!!

Draw and upload a box plot representing the following data set: 22,35,18,30,37,20,40,18,38,38,23,19,27,31,34

Answers

Answer:

hope this helps you out :)

Raylin went to the park with her friends and found a soccer ball. She picked up the soccer ball and kicked it as high as she could. The path of the ball can be represented by h= -16t2 +27t+3

What is the maximum height of the soccer ball? _______________________

How long will it take the ball to reach the ground?

Answers

Answer:

The maximum height is: [tex]h(t_{max})=14.39 \: u[/tex]  

The ball reaches the ground in 1.79 s.

Step-by-step explanation:

We need to take the derivative and equal to zero to find the time at the maximum height.

[tex]h(t)=-16t^{2} +27t+3[/tex] (1)

[tex]\frac{dh(t)}{dt}=-32t +27=0[/tex]

[tex]t_{max} =\frac{27}{32}[/tex]

[tex]t_{max} =0.84\: u[/tex]

Now, we just need to put t(max) into equation (1) to find h(max)

[tex]h(t_{max})=-16(0.84)^{2} +27(0.84)+3[/tex]

[tex]h(t_{max})=-16(0.84)^{2} +27(0.84)+3[/tex]

[tex]h(t_{max})=14.39 \u[/tex]  

If we want to get the time when the ball reaches the ground we just need to equal h(t) to zero.

[tex]0=-16t^{2} +27t+3[/tex]

Let's solve this quadratic equation.

We will get two solutions and we must choose the positive value.

t1 = 1.79 u

t2 = -0.10 u

Therefore, the ball reaches the ground in 1.79 u.

I hope it helps you!    


Asif and Ben share $2100 in the ratio Asif: Ben = 3:7.
Work out how much Asif receives.
$2100

Answers

Answer:

$630 for Asif

Step-by-step explanation:

Asif gets 3/10ths

So

2100 x 3/10 =  $630 for Asif

Select all the sets of conditions that will create only one unique triangle.

Answers

You have to post a picture

help me please i need to finish this today

Answers

Answer: I think it is B

Step-by-step explanation:

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