8th grade math pls help and show work i’ll give brainliest

8th Grade Math Pls Help And Show Work Ill Give Brainliest

Answers

Answer 1

Answer:

B) -8

Step-by-step explanation:

Slope is rise/run, or the difference in y over the difference in x, so to solve this:

Take the y value of one of the points and subtract it from the other, and divide it by the same thing with the x values

[tex]\frac{9-1}{6-7} =\frac{8}{-1} =-8[/tex]


Related Questions

What is the greatest common factor of 50, 42, and 30?

Answers

Answer:

2

Step-by-step explanation:

[tex]50 = 2 \times 5 \times 5 \\ \\ 42 = 2 \times 3 \times 7 \\ \\ 30 = 2 \times 3 \times 5 \\ \\ common \: factor \: = 2 \\ \\ gcf = 2[/tex]

What is the general form of the equation for the given arce centered at 00.02
OA + 7 + 41=0
OB. 77-41=0
Oc 77 + x + y - 41=0
OD 7 7x-y-41=0

Answers

Answer:

C

Step-by-step explanation:

I think so

Lupe and her friends spent $20 on snack mix and water. They bought x bags of snack mix and y bottles of water. They bought a total of 11 items. How many bags of snack mix did they buy?

Answers

Answer:

6 bags of snack mix

Step-by-step explanation:

x bags of snack mix

y bottles of water

The equations in the question is given as;

20.00 = 2.50x + 1.00y  (i)

11 = x + y (ii)

From eqn (ii);

11 - y = x

substitute the value of x in eqn (i);

20.00 = 2.50(11 - y) + 1.00y

20.00 = 27.5 - 2.50y + 1.00y

20.00  - 27.5  = - 1.50 y

- 7.5 = - 1.50 y

y = - 7.5 / (- 1.5) = 5

Since we are interested in the value of x. Substitute the value of y in eqn (ii);

11 = x + 5

x = 11 - 5 = 6

Your answer must be simplified


X
- > -2
7

Answers

i’m confused could you explain more?

What is the surface area of this right square pyramid?

with a width of 5cm and a height of 9cm


A.90cm squared

B.115cm squared

C.205cm squared

D.250cm squared

Answers

Answer:

it isn't 205 but my guess is its 115

( 4,2 ) dialated by a scale of 2

Answers

(4,2) —-> (8,4)
Answer: (8,4)

solve the equation 16y+ -2=-20

Answers

Answer:

y=-34

Step-by-step explanation:

16y-2=20

    +2   +2

16y=-18

-16    -16

y= -34

The %5 sales tax on a $1500 tv need asap please and thanks

Answers

Answer:

This would be 75 dollars, or a total of 1575 dollars (the tv with tax)

Step-by-step explanation:

convert 5% to decimal = .05

.05 multiplied by 1500 = 75

75+1500=1575

Answer:

CP=1500

SALES TAX%=5

so, the answer after the calculations would be

$75.00

Hope it helps

Mark me as Brainliest please uwu

can somebody please help

Answers

Answer:

Every equation has a solution.

Hope that helps!?

Step-by-step explanation:

What is the total weight, w, of 5 bags of soil?

Answers

Answer:200

Step-by-step explanation: I typed this and got it right

9. DOG WALKING Evan, a dog walker, charges $3 every block that he walks a dog. He also charges a $5 pick up fee when he comes to get a dog. How many blocks will he need to walk a dog in order to earn $26? Write an equation and solve the equation.

Answers

Answer:

Evan will have to walk 7 blocks

Step-by-step explanation:

Evan will have to walk 7 blocks because he gets $5 from picking up the dog, so subtract 5 from 26 to get 21. Next, you want to divide 21 by 3 to get 7 because $3 a block and you need to find how many blocks he needs to do.

If y varies inversely as x, and y = 4 when x = 16, what is the value of y when x = 8?

Answers

I suppose that the value of y equals 2, seems how 4 times 2 what equal 8 and 8 times 2 would equal 16

"Expand the brackets and simplify" (please i need help asap)​

Answers

ok, b)

you can times anything inside bracket by 8. so, 8r -40  + 12

You can simplify to 8r - 28.

d)

You can rearrange it to 6a + 12a -12/3 -15/3

= 18a - 27/3

Can someone pls pls pls pls pls pls answer these question

Answers

Step-by-step explanation:

if you replace n = 1

(2)(7)^(1-1)

= (2)(7⁰)

= 2×1

= 2

if n = 2

(2)(7)^(2-1)

= (2)(7)^(1)

= 2×7

= 14

choice 1

In Triangle PQR, p = 36 cm, q = 21 cm and r=17 cm. Find the measure of ZQ to the
nearest 10th of a degree.

Answers

Answer:

20.8

Step-by-step explanation:

If your using delta math ..

Answer:

20.8

Step-by-step explanation:

delta

Which of the following expressions is equivalent to (2x)3 ?


Group of answer choices

6x4

2x3

8x3

6x3
btw the numbers on the right are exponents

Answers

Answer:

6x3

Step-by-step explanation:

....................

Diego runs for 32 seconds at -8.1 meters per seconds. What is his finish point?

Answers

Answer:

i thinks  is -40.1

Step-by-step explanation:

Please Help!! I will give 50 points and brainliest..
The question is attached below

Answers

Answer:

okey i will help you what is that

Rafael drops a ball from the third-story window. This equation represents the approximate height, h, in meters, of the ball above the ground after it falls for t seconds.

h = -5t² + 45

When is the ball at ground level?​

Answers

Answer:

3 seconds is when it will be at ground level.

Step-by-step explanation:

I'll explain it tmr, just reply if you want me to explain.

7a+3b=27
6a+3b=24

Solve in simultaneous

A=
B=

Answers

Answer:

A= 3,B = 2

Hope it helps you

if yes mark me brainliest

Answer:

hence, a = 3

b = 2

Step-by-step explanation:

from the given pair of linear equation we get,

7a + 3b = 27 - ( 1 )

6a + 3b = 24 - ( 2 )

now, subtract equation 2 from equation 1

=》7a + 3b - 6a - 3b = 27 - 24

=》a = 3

now put the value of a in equation 1

=》7a + 3b = 27

=》( 7 × 3 ) + 3b = 27

=》21 + 3b = 27

=》3b = 27 - 21

=》b = 6 ÷ 3

=》b = 2

Can you help with these two? Thanks!

Answers

Answer:

1. D.

2.C.

Step-by-step explanation:

If I'm right pls mark brainleist

3x²-.75=90

I need help finding the value of x
(90 points)

Answers

Answer:

x=5.5, -5.5

you can use a calculator too

Step by step explanation:

3x^2 - 75 = 90

1. Move the constant to the right

3x^2 = 165

2. Divide by 3

X^2 = 55

Therefore: x= +/- square root 55

X^2 = 115

HELP pls if you know this

Answers

Answer:

58

Step-by-step explanation:

plzz help with this math due today

Answers

Answer:

20x⁴ - 13x³+ 8x² - x + 6

Step-by-step explanation:

Multiplyin gbthebtop trinomial by the last term. Of the bottom trinomial.

___4x² - 5x + 3

___5x² + 3x + 2

* ____________

_________8x² - 10x + 6

______12x³-15x²+9x

_20x⁴-25x³+15x²

____________________

20x⁴ - 13x³+ 8x² - x + 6

___________________

Dana ordered 6 pizzas for her party and each pizza is sliced into quarters. She says in order to find out how many slices there are, she needs to calculate
6 ÷ 0ne fourth. Which multiplication expression will also solve the problem of how many slices there are?

A.24 × one sixth

B.4 × one sixth

C.6 × one fourth

D.6 × 4

plzzzzz help I'm not good at math

Answers

Answer:

d

Step-by-step explanation:

D is the correct answer because when you divide 6 by one forth its just like 6x4

Help me solve this problem please

Answers

It’s only a vertical angle

Plz help I’m need help

Answers

I can’t really help you too much with the graphing but what you do with ordered pairs is whatever is the first number (example for point A it’s -2) you go and find it on the horizontal line. Once you find it on the horizontal line you either go up or down the graph by how many units the second number is (4 so you would go up four in the graph) and then you plot the point
here you go, just put dot on it

Calculate the number in the middle of 1.5 and 7.1​

Answers

Answer: 4.3


7.1 - 1.5 = 5.6

5.6 / 2 = 2.8

1.5 + 2.8 = 4.3 = 7.1 - 2.8

Find the shaded area of each figure, round your answer to one decimal place if necessary

Answers

area of shaded portion = 49.5 yd²____________________

Step-by-step explanation:

radius of circle = 5 yd ------ ( given )

height of triangle = 16 yd --- ( given )

base of triangle = 16 yd ----- ( given )

area of triangle = 1/2 × base × height

= 1/2 × 16 × 16

= 128 yd²

area of circle = π × radius²

= 3.14 × 5 × 5 --- ( π = 3.14 )

= 78.5 yd²

---------------------------------------

area of shaded portion = area of triangle - area of circle

area of shaded portion= 128 yd²-78.5 yd²

area of shaded portion = 49.5 yd²

--------------------------------------PLEASE FOLLOW ME

what is 57÷3 1/3 I need this asap please

Answers

First we need to turn 3 1/3 into an improper fraction:

3 1/3 = 10/3

Because we are dividing, multiply 57 my the reciprocal (the faction flipped upside down) of 10/3:

57 x 3/10

Which can also be written as:

57/1 x 3/10

Now we just multiply:

171/10

Therefore 171/10 is ur answer

Hope this helped :)

If this answered ur question can you pls give me brainiest

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