help 8th grade math multiple choice question

Help 8th Grade Math Multiple Choice Question

Answers

Answer 1

Answer:

P1 (-1,1)

P2 (-2,4)

FOURTH OPTION IS CORRECT.


Related Questions

A coach travels to the beach which is 576 KM away in 6 hours. If he is only allowed to travel at a maximum speed of 90 kph, did the coach break the speed limit? What was his average speed?

Answers

Answer:

Yes

Step-by-step explanation:

576Km:6Hrs

576 divided by 6=96 km

6 divided by 6=1

96km:1hr

96 was the coaches speed limit

km=Kilometers

Hrs=Hours

96>90

yes , the coach break the speed limit and the average speed is 96 km ph

What is Speed?

Speed is the time rate at which an object is moving along a path

Given,

A coach travels to the beach which is 576 KM away in 6 hours.

The maximum speed he can travel is speed of 90 kph

We need to check whether the coach breaks the speed limit or not.

Yes he has to break the speed limit because in 6 hours with 90kph he can travel only 540 km. He still needs to travel 36 km.

and the average speed he has to maintain is 576/6

96kmph

Hence, yes the coach break the speed limit and the average speed is 96 km ph

To learn more on Speed click:

https://brainly.com/question/28224010

#SPJ2

what is 5 %9 (86 - 32) plss help

Answers

Answer:

270

Step-by-step explanation:

Challenge You have 2 different savings accounts. For Account A, the simple interest earned after
6 months is $4.13. For Account B, the simple interest earned after 21 months is $26.25. If the
interest rate is 3.3% for Account A and 2.5% for Account B, how much is the principal in each
account? Which account earned you the most interest the first month? Explain your answer.
Account A has a principal of $
(Round to the nearest dollar as needed.)

Answers

Answer:

Save without the temptation of touching it. Earn attractive interest. Better Articulation. Showcase your Strengths.

Find the slope of the line

Answers

Answer:

-1/2

Step-by-step explanation:

If A=,[2 5 7],find the value of
[1 4 9]
[8 3 6]
a23+a12-a32 matrix.​

Answers

Answer:

THE CORRECT ANSER OF THIS QUESTION IS 5.

Step-by-step explanation:

Here,

a23=6

a12=5

a32=6

Now,

a23+a12-a32

=6+5-6

=5

The temperature in Alaska dropped –50.16°C in 5.7 hours. How much did the temperature drop per hour?

Answers

Answer:

-8.8

Step-by-step explanation:

hope this helps!! :)

5x-2y=10
One solution, No solution and Many solution for the equation. Pls help!!

Answers

Answer:

one solution

Step-by-step explanation:

This would be a one solution equation

3.1/3÷2.3/5
I Mark brainlies ​

Answers

Answer:

1.11/39

Step-by-step explanation:

Mary is painting pumpkins to earn money. She plans on selling each pumpkin for $7.50. She currently has $200 in her savings account. Is the amount of money in her bank account proportional to the number of pumpkin she sells?

Answers

Answer: No. It's not proportional

Step-by-step explanation:

The direct proportion in mathematics is expressed as:

y = kx

where

y = $200

k = constant

x = $7.50

We then solve for k

y = kx

200 = 7.50k

k = 200/7.50

k = 26.67

Since k isn't a whole number, then the amount of money in her bank account proportional to the number of pumpkin she sells.

4^-x =1/6 find x
need help asap​

Answers

Answer:

2

Step-by-step explanation:

you can make it like this

(1/4)^ x=1/16

so x=2

x = 2
This is because when you have a negative exponent like -x to rearrange it to a fraction and change the negative to a positive.
So 4^x would be the denominator and 1 would be the numerator.
So 1 / 4^x = 1 / 16
To achieve 16 from 4 you square it, therefore x = 2

( PLEASE HELP ME!!!!!!!!!!!!!!!!!!) HELPPPPPPPPP MEEEEEEEEEEEE)which fraction and decimal forms match the long division problem?
9 divided by 4.000



A. 4/9 and 0.4 B. 9/4 and 0.4 C. 4/9 and 0.4 D. 9/4 and 0.444

Answers

Answer:

Step-by-step explanation:

9/4.000= 9/4  fraction, 2.25 decimal and 2 1/4 mixed number.

If you take 4/9 you get 0.4 as the decimal

Answer: the answer is 4/9 and 0.4 with a line on top of 4

Step-by-step explanation:

credits too: igladky689 (he said the answer)

2w^2 - 28w + c what does C =

Answers

Answer:

2 w ^2 − 28 w + c

Step-by-step explanation:

That's what I got use math(way)to see it

Convert this decimal into its fractional
form, simplified completely.
0.650

Answers

Answer:

13/20

Step-by-step explanation:

0.650 /1

0.650 × 100

1 × 100   =  

65 /100

65 ÷ 5

100 ÷ 5  =  

13 /20

The scale use for a model of kitchen is 1/4 in = 1/2 ft In the model, the kitchen measures 2 1/2 by 2 3 in. What are actual dimensions of the kitchen

Answers

Answer:

5feet by 4/3feet

Step-by-step explanation:

The scale use for a model of kitchen is 1/4 in = 1/2 ft In the model, the kitchen measures 2 1/2 by 2 /3 in. What are actual dimensions of the kitchen.

From the question, we were given the conversation rate of 1/4 in = 1/2 ft In the model,

To get actual dimensions of the kitchen if the kitchen measures 2 1/2 by 2 3 in. Then

✓Let us convert 2 1/2in to feet first= 5/2in as improper fraction.

If 1/4 in = 1/2 ft

5/2in = x ft

Then cross multiply, we have

(5/2×1/2)= 1/4 × X

5/4 = 1/4X

Make X subject of the formula

X= (5/4)/(1/4)

X=5ft.

✓Let us convert 2/3in to feet

If 1/4 in = 1/2 ft

2/3in = x ft

Then cross multiply, we have

1/4×X=2/3×1/2

X=(2/3×1/2)/(1/4)

X=4/3feet

Therefore, the actual dimensions of the kitchen is 5feet by 4/3feet

In ΔABC, m ∠ A = ( 3 x + 1 ) ∘ m∠A=(3x+1) ∘ , m ∠ B = ( x + 14 ) ∘ m∠B=(x+14) ∘ , and m ∠ C = ( 4 x + 5 ) ∘ m∠C=(4x+5) ∘ . What is the value of x ? x?

Answers

Answer:

x = 20

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 given angles and equate to 180

3x + 1 + x + 14 + 4x + 5 = 180, that is

8x + 20 = 180 ( subtract 20 from both sides )

8x = 160 ( divide both sides by 8 )

x = 20

(Score for Question 2: 4 points)
2. You buy a pair of pants. The original cost of the pants is $30.00. The pants are on
sale for 20% off. Show your work or explain your mental math for each part! Pls explain!

Answers

20/100=0.2
0.2x30.00=6
30-6=24

You need to convert the 20 into a decimal so you divide it by 100 and you will have to multiply the result by the price of the pants (30.00) and it will give you what will be discounted. and he only challenges the result (6) by the price of the pants.
So the answers is 24

Answer: 24

Step-by-step explanation:

30 divided by 10 to get 10 percent which is 3, multiply that by 2 to get 20 percent which is 6, 30 (100 percent) minus 6 (20 percent) equals 24

Find the value of x.

Answers

Answer:

57 degrees

Step-by-step explanation

Answer:

x = 57

Step-by-step explanation:

So we know all triangles add up to 180 degrees. And that supplementary angles add up to 180 degrees.

So, we can do that missing angle + 138 = 180

180 - 138 = 42

180 - 42 - 81 = x = 57

Mrs. Hernandez was helping her students with their bank accounts. The ratio of the amount of the student with the most money to the student with the least money was 4:1. If the student with the most money has $128, how much does the student with the least money have

Answers

Answer: $32

Step-by-step explanation:

From the information given in the question, we are told that the ratio of the amount of the student with the most money to the student with the least money was 4:1. If the student with the most money has $128.

This shows that the student with most money has quadruple that is 4× the student with the least money. Therefore, the student will least money will have:

= $128/4

= $32

What is the image point of (0,-5) after a translation right 5 units and up 2 units?

Answers

Answer:

(5,-3)

Step-by-step explanation:

0+5 = x

-5+2 = y

hope that can help

Answer:5,-3

Step-by-step explanation:

It’s right

Calculator
Given j | k and mZ1 = 40".
8/1
What is mZ6?
7/2
k
Enter your answer in the box.
63
54
mZ6 =

Answers

Answer:

65 oop

Step-by-step explanation: o0iiutdgc vhy

3. A florist sells large floral arrangements for $60 each. Small floral arrangements sell for $15 each. Jenna is buying 2 large floral arrangements and x small floral arrangements. Let y represent the total cost Jenna must pay in dollars.
Write an equation in slope-intercept form to model this description.

Answers

Answer:

y=120

Step-by-step explanation: 60 x 2 = 120

15x + 120

Twice a number n decreased by seven (ez points for ez question so answer )

Answers

2n-7
good luck :)))
-☺️

Rewrite the product as a power:
[tex](-a)^{3} b^{3}[/tex]

Answers

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[tex] { - a}^{3} . {b}^{3} = ( { - a \times b})^{3} = ( { - ab})^{3} \\ [/tex]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

Each correct answer is worth 134 points, and each incorrect answer is worth −14 points. If he gets 58 questions correct and 22 questions incorrect, does Nevan win? How many points does he score?

Answers

Answer:

i. Yes, Nevan won.

ii. Nevan scored 7464 points.

Step-by-step explanation:

Given: each correct answer = 134 points

           each incorrect answer = -14 points

Since he got 58 questions correctly, then;

His number of points = 134 x 58

                                   = 7772 points

Also, he got 22 incorrect questions, then;

His number of points = -14 x 22

                                   = -308

Nevan's total points = 7772 + (-308)

                                 = 7772 - 308

                                 = 7464

Nevan scored 7464 points.

Nevan won, and also had a total of 7464 points.

Answer:

yes nevan won

Step-by-step explanation:

z2 + 5z - 3z2 + z
Terms
Like Terms

Answers

The answer is 2z.......

A wheel has a radius of 13”; calculate the circumference.

Answers

Answer:

81.71"

Step-by-step explanation:

Circumference = 2*pi*radius

pi = 22/7

radius = 13

Circumference = 2*22/7*13 = 44*13 / 7 = 572/7 = 81.71"

can yall plz plz help me

Answers

Answer:

the answer is 80000 is b

Measure of angle A : 3x

Answers

Answer: 11 degrees

Step-by-step explanation:

A nightclub has approximated the demand for their Thursday night drink special by p^2+200q^2=177​, where p is the price​ (in dollars) and q is the quantity demanded​ (in thousands). Find and interpret when the price is ​$ 7 and the demand is 800 drinks.

Answers

Answer:

Step-by-step explanation:

Given the approximate demand function of night drink expressed as;

p^2+200q^2=177​,

p is the price​ (in dollars) and;

q is the quantity demanded​ (in thousands).

Given

p = $7

q = 800

Required

dq/dp

Differentiating the function implicitly with respect to p shown;

2p + 400d dq/dp = 0

400q dq/dp = -2p

200qdq/dp = -p

dq/dp = -p/100q

substitute p and q into the resulting equation;

dq/dp = -7/100(800)

dq/dp = -7/80000

dq/dp = -0.0000875

This means that the rate of change of quantity demanded with respect to the price is  -0.0000875

Look at picture please !! I really need help thank you !

Answers

Answer:

h (1,2), w (3,4), y (6,0)

Step-by-step explanation:

Reflecting across y-axis means only changing the x -value between negative and positive. Flipping the sign

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