Determine the equation of the line that goes through the points (-2,1) and (1,-1) PLEASE HELP!!​

Answer:

the correct answer is c

Step-by-step explanation:

Answer:

-9n+8

Step-by-step explanation:

Answer:

the slope of the red line is   [tex]\frac{1}{2}[/tex]   or 0.5

Step-by-step explanation:

Answer:15:4

Step-by-step explanation:

Answer:

Step-by-step explanation:

1. -3.2a≤8  you are dividing the 8/-3.2 you get -2.5 flip your sign to get

a≥-2.5 solid line on -2.5 and go to the right.

2. 2>n+.8  minus .8 from both sides  n<1.2  open circle on 1.2 and go to the left

3. b-4.2>=-5  b≥ -0.8  solid line on -0.8 and go to the right

4. false

5. r≤0.1

6. y≤0.8  

You get the idea or need more help?

Answer:

1. -2.5

2. 1.2

3. -0.8

4. I think false

5. 0.1

6. 0.8

Step-by-step explanation:

I used mental math so I hope it's right.

Answer:

x=3

Step-by-step explanation:

5x²-45=0 | +45

5x² = 45 | :5

x² = 9 | /9

x = 3

Answer:

x=3,x=-3

Step-by-step explanation:

Use the quadratic formula

where

a=5

b=0

c=-45

which means x=(0±30)/10

so you do (0+30)/10=3

and (0-30)/10=-3

to find your two solutions

Answer:

800000

Step-by-step explanation:

Answer:

♡ Hi darling!

~The answer is 800,000.

Here is some explanation on how to round numbers to the nearest hundred thousand easily.

You can just look at the next place value to the right (the thousandths this time). If it's 4 or less, just remove all the digits to the right. If it's 5 or greater, add 1 to the digit in the hundredths place, and then remove all the digits to the right. ♡

Hope this helps, have an amazing night/day and remember your loved! Make sure to take care of your mental health and eat food and drink water today.

(ﾉ◕ヮ◕)ﾉ*:･ﾟ✧

~ Clara

✧･ﾟ: *✧･ *:･ﾟ✧*:･ﾟ✧･ﾟ: *✧･ﾟ *:･ﾟ✧*:･ﾟ✧✧･ﾟ: *✧･ *:･ﾟ✧*:･ﾟ✧･ﾟ: *✧･ﾟ

Step-by-step explanation:

Answer:

y=43

x=90

Step-by-step explanation:

angles a and c are equal, so to find y you just add 47+47=86 and divide 86/2=43

x is a right angle because it splits the triangle in half

Answer:

I think 48

Step-by-step explanation:

multiply the bottom numbers

Answer:

i think is 44

Step-by-step explanation:

Complete the square:

2x² + 9x - 18

2(x² + 9/2 x) - 18

2(x² + 9/2 x + 81/16 - 81/16) - 18

2(x² + 2 (9/4) x + (9/4)²) - 81/8 - 18

2(x + 9/4)² - 225/8

If you're not familiar with the method, the idea is to get a quadratic from the standard form

ax² + bx + c

into its vertex form

a (x - h)² + k

where (h, k) is the vertex of the parabola associated with the quadratic.

Expand the vertex form to get

a (x² - 2xh + h²) + k

ax² - 2ahx + ah² + k

For the two forms to be equivalent, we must have

-2ah = b

ah² + k = c

which means

h = -b/(2a)

k = c - ah² = c - b²/(4a)

In this case, a = 2, b = 9, and c = -18, so

h = -9/(2 • 2) = -9/4

k = 18 - 9²/(4 • 2) = -225/8

Answer:

13

Step-by-step explanation:

hope this helps you out of

Answer:

To get Radius, you divide diameter by two, which is now 13.

Step-by-step explanation:

Answer:

About 158 times

Step-by-step explanation:

Represent the rate of human heart with H and sparrow's heart with S

[tex]H = 1,533,000\ times[/tex]

[tex]S = 241,776,000\ times[/tex]

Required

Determine how many times faster is S than H

To do this, we simply divide S by H i.e.

[tex]Number = \frac{S}{H}[/tex]

[tex]Number = \frac{241,776,000}{1,533,000}[/tex]

[tex]Number = 157.714285714[/tex]

[tex]Number = 158[/tex] --- approximated

Hence, the sparrow's heart beats about 158 times faster than the human hearts

Answer:C 4x-y=2

Step-by-step explanation:

The equation of the line that has a slope of 4 is 4x - y = 10.

Option D is the correct answer.

The equation of a line is given by:

y = mx + c

where m is the slope of the line and c is the y-intercept.

Example:

The slope of the line y = 2x + 3 is 2.

The slope of a line that passes through (1, 2) and (2, 3) is 1.

We have,

Slope = 4.

The line contains (3, 2).

The equation of the line.

y = mx + c

m = 4

(3, 2) = (x, y)

2 = 4 x 3 + c

2 = 12 + c

c = 2 - 12

c = -10

Now,

y = 4x - 10

4x - y = 10

Thus,

The equation of the line is 4x - y = 10.

Learn more about equation of a line here:

https://brainly.com/question/23087740

#SPJ2

Answer:

New price: $255.50

Step-by-step explanation:

First you multiply 365x.30

Then you'll get 109.5

Sub that from 365 and you'll get $255.50

Answer:

You need to put the fractions for us to answer but fractions that are greater than 1/2 include: 3/4 and  4/7  and  basically any fraction that has a value greater than 0.5

Step-by-step explanation:

Answer:

Step-by-step explanation:

we are given that 1 angle equals 27 and the other two are equal.

180-27=153. and the other two are equal so they each equal 76.5 (153 divided by 2) now since one of the angles is supplementary with angle x, they together must equal 180 so: 180-76.5=x, x=103.5

Answer:

the answer is going to be D

Step-by-step explanation:

Answer:

The equations represent circles that result in the same graph.

Step-by-step explanation:

Answer:

1 maybe

Step-by-step explanation:

im kinda dumb!!

Answer:

The answer is 1 7/9

Step-by-step explanation:

hope this helps

2 2/3÷1 1/2

=8/3×3/2

=8×2/3×3

=16/9 in fraction

=1 7/9 in mixed number

Answer:

b) y= 3x - 5

Step-by-step explanation:

9x-15 ÷3 = 3x - 5

3y ÷ 3 = y

Answer:

72 students

Step-by-step explanation:

IF 2 out of 3 students recycle aluminum cans and 48 students recycle aluminum cans.

48 divided by 2 is 24

48 plus 24 is 72

Answer:

1.92

Step-by-step explanation:

I did 6.46-4.54 and I got my answer.

Answer:

10

Step-by-step explanation:

the answer is 10

Answer:

(-2,10)

Step-by-step explanation:

Let's solve your equation step-by-step.

x2−8x=20

Step 1: Subtract 20 from both sides.

x2−8x−20=20−20

x2−8x−20=0

Step 2: Factor left side of equation.

(x+2)(x−10)=0

Step 3: Set factors equal to 0.

x+2=0 or x−10=0

x=−2 or x=10

Answer:

x=−2 or x=10

Answer:

{–2, 10}

Step-by-step explanation: hope it helps ^w^

Answer:

A

Step-by-step explanation:

Answer: 113 / 40

Step-by-step explanation:

Answer:

2 33/40

Step-by-step explanation:

Hope I helped

Answer:

9 fluid ounces of sparkling soda.

Step-by-step explanation:

The ratio is 1 to 8 so:

72 / 8 = 9

Answer:

don't know area but the perimeter is 24.2 cm

Step-by-step explanation:

Answer:

Slope: 6

Y-intercept: 4

Equation: y=6x+4

Step-by-step explanation:

For slope you do change in y over change in x so its 10-4/1-0 in this case which gets you 6/1 or 6 for your slope

It crosses the y-axis at (0,4) so your y-intercept is 4

The base equation is y=mx+b m is slope b is y-intercept so you plug in your values and get y=6x+4

Answer:

let x be the total amount of gallons he bought

$16.80÷$1.40 = x

16.80÷1.40=12

x=12

Step-by-step explanation:

Answer:

true

Step-by-step explanation: