Mathematics Middle School

What are the x-intercepts of the graph of the function below?
y= x^2+3x – 28
A. (7,0) and (4,0)
B. (-7,0) and (-4,0)
C. (7,0) and (-4,0)
D. (-7,0) and (4,0)

Answers

Answer 1
The answer to your question is D.
Answer 2
y = x^2 + 3x - 28
y = x^2 + 7x - 4x -28
y = (x^2 + 7x) - (4x - 28)
y = x(x + 7) - 4(x + 7)
y = (x + 7)(x - 4)
y = -7, 4

The answer is D. (-7, 0) and (4, 0)

Related Questions

write 7.16 x 10^-5 in standard notation

Answers

Answer:

So this is called scientific notation, you can write as

7.16e-5 not saying euler's number.

To put in standard you move the decimal point in the direction of the sign and that many times. So in this case the direction of the sign is - because -5 so we move the decimal to the left, in this case we do it 5 times. So we move it five times 0.000716 is what you get

Answer: 0.000716

Answer:

0.0000716

Step-by-step explanation:

7.16 x 10^-5 = 7.16*0.00001 = 0.0000716

The temperature in Miami, Florida is 22 degrees warmer than three times the temperature in Bangor, Maine. The temperature in Miami is 82 degrees. Write an equation to determine the temperature in Bangor. 3x + 82 = 22 3x + 22 = 82 3x − 22 = 82 3x − 82 = 22

Answers

Answer:

3x + 22 = 82  

Step-by-step explanation:

3x + 22 = 82

      -22 = -22

                3x= 60

                  3 = 3

  X =20

Answer:

B

Step-by-step explanation:

Find the surface area of the prism.
12 in
9 in
4 in

Answers

what answer would be 3.14

And I also need help with this-

Answers

Answer:

X=9

Step-by-step explanation:

I did the same as your other problem

While flipping a weighted coin, Steven gets 10 heads and 6 tails. Based on experimental probability, how many of the next 80 flips should Steven expect to come up heads?

Answers

The answer is 8 ur welcome

Do cats like tuna flavored treats or chicken flavored treats? Cats in an experiment are randomly given either tuna or chicken flavored treats and the results
are recorded. Is blinding demonstrated in this experiment?
Yes, the cats don't know the difference between tuna and chicken flavor.
No, the cats know the difference between tuna and chicken flavor.
Yes, by having someone not related to the experiment review the data.
No, because the experimenters do not know which one the cats are getting.

Answers

Answer:I’m pretty sure it’s No, the cats know the difference between tuna and chicken flavor treats.

Step-by-step explanation:

Heather is selling clothes at a pop up shop this weekend. She knows that for each top (t) she sells she
will make $35, she'll make $25 for each pair of leggings (1), and $55 for each dress (d). Which of the
following expressions represents the total profit Heather will bring in?

Answers

Answer:

35t+25l +55d

Step-by-step explanation:

35t+25l +55d  is the profit

t  is the number of tops, l is the number of leggings and d is the number of dresses

Answer:

So A is there just to make you trick you, its not even related and doesn't have the numbers here. And same goes for D. So we have B and C left. C doesn't make any sense because you're multiplying everything by 105 and that is not even a number specified here. So that just leaves B and its also logical, you're multiplying it by the numbers specified. Therefore the answer is

B is answer

iven: x + 2y = -6. Solve for y.

Answers

Answer:

y=-6-x/2

Step-by-step explanation:

Answer:

y = -x/2 -3

Step-by-step explanation:

So there are LOTS of ways you can choose to do this, but this is how i do it:

I like to move all the x to one side first, so:

2y = -x -6

Then we have to divide everything by 2 to get y on its own:

y = -x/2 -3

*you can divide first too if you want, i find that this keeps it nice and simple though

Hope this helped : )

The segments shown below could form a triangle.

Answers

Answer:

false

Step-by-step explanation:

Answer:

false

Step-by-step explanation:

cauze there are not equal


It takes a graphic designer 1.5 hours to make one page on a website. Using an upgradedeoftware, the designer
could complete each web page in 1.25 hours but it takes 8 hours to learn how to use the upgraded software
How many web pages would the designer have to make in order to save time using the new software?

Answers

Answer:

8 websites

Step-by-step explanation:

1.25+1.25+1.25+1.25+1.25+1.25+1.25

Please help 35 points!

Answers

Answer:

life changes over time?

Step-by-step explanation:

sorry if it is wrong. I havent done this yet

If the mean of the data set is 84 points, find Haruka's final exam score in chemistry.
Final exam Score on a 100 -point scale
Astronomy 72
Biology 85
Physics 92
Chemistry ??

Answers

Answer:

Haruka's final exam score in chemistry is 87

Step-by-step explanation:

Given mean of data set = 84

given score

Astronomy 72

Biology 85

Physics 92

Chemistry ?

we have to find score of chemistry

let the score of chemistry be x

we know that mean is sum of data set divided by no of terms in data set

mean = sum of data set /no of terms in data set

number of terms in our problem is 4 (Astronomy,Biology,Physics,Chemistry)

sum of set

72+85+92+x = 249+ x

as mean is 84,

hence

84 =  (249+ x)/4

=> 84*4 = 249 + x

=> 336 = 249 + x

=> 336 - 249 = x

=> x = 87

Thus, Haruka's final exam score in chemistry is 87.

Katelynn measures the height of her bean plant on Monday and again on



Friday. She says that her bean plant grew 10 quarter inches. Her partner



records 2 1/2 inches on their growth chart for the week. Is her partner



right? Why or why not? *Use words and numbers to explain. *

Answers

Answer:

Her partner is right!

Step-by-step explanation:

She is right because 10 x .25(or [tex]\frac{1}{4}[/tex]) = 2.5 (or [tex]2\frac{1}{2}[/tex])

Hope this helped! Stay safe and wear a mask!

Given 2x² = -8, x is

Answers

Answer:

x = -2  x = 2  (irrational numbers)

Step-by-step explanation:

you would first divide by 2 which would get you x ^2= -4
then you have a negative so you’ll have two answers
your answers would be x=2 and x=-2

Please help me with this I’m struggling

Answers

Answer:

the correct answer is b

Step-by-step explanation:

The reason why B is the correct answer is because The segment that is a radius is RO

Answer:

OB, OJ, OE

Step-by-step explanation:

Any segment joining the centre of the circle O to the circumference is a radius.

There are 3 possible radii

OB, OJ and OE

Plsss help fast thanksss correct answer pls

Answers

Answer:

here is the answer... for it

Find the missing term.
(Blank) + 7 - 3i) + (5 + 91) + 131 = 10 - 5i.

Options:
-2 - 24i
2 - 12i
-12-24
-2 + 141

Answers

Answer:

I plugged them all in, but none were the solution

Step-by-step explanation:

a). 232 - 21

232 + 21

b) 236 - 9i

236 + 9i

c). 198 - 3i

d). 373 - 3i

maybe you had a typo?

Lebron owns a basketball court that is surrounded by a rectangular fence. The
basketball court is 36 yards long and 18 yards wide. If he walks across the
diagonal length of the basketball court, how much distance would he cover? (
Round to the nearest hundredth)
Your answer

Answers

Answer:

Your answer should be 162 yards

                  Hope this helped! and have a great day!

Answer:

162 yards

Step-by-step explanation:

Please answer correctly !!!! Will mark brainliest !!!!!!

Answers

Answer:

b the number of tenants on floor 20 and floor c are equal

Step-by-step explanation:

Select the correct answer.
A school bus has 25 seats, with 5 rows of 5 seats. 15 students from the first grade and 5 students from the second grade travel in the bus. How
many ways can the students be seated if all the first-grade students occupy the first 3 rows?
OA 25P20
OB 5P5X20P15,
OC15C15 X 10c5
OD 15P15x 10P5
OE 15P15 x10c5

Answers

Answer:

Option D

Step-by-step explanation:

D. 15P15 × 10P5

SOMEBODY PLEASE HELP ME IN GEOMETRY

Answers

Answer:

1

Step-by-step explanation:

7x-1+2x-1=7

9x=9

x=1

Answer:

x=1

Step-by-step explanation:

RS + ST = RT

7x-1 + 2x-1 = 7

Combine like terms

9x-2 = 7

Add 2 to each side

9x-2+2 = 7+2

9x= 9

Divide by 9

9x/9 = 9/9

x = 1

1) Yesterday you found that the probability of landing on YELLOW was 2/8
because there are 8 equal sections and 2 of them are YELLOW. If I spin the
spinner 16 times, how many times should I expect it to land on YELLOW?

Answers

Answer:

idk

Step-by-step explanation:

The radius of a circle is 5 inches. What is the angle measure of an arc a inches long?

Answers

I would think it’s just pi but I don’t think that’s correct

Given the absolute value function j(x) = |x|, what's the equation that results from translating j(x) right 8 units and up 6 units?

A) j(x) = |x + 8| + 6

B) j(x) = |x – 8| + 6

C) j(x) = |x – 6| + 8

D) j(x) = |x + 8| – 6

Answers

Correct answer would be c
The correct answer will be B) j(x) = |x - 8| + 6

Dina was running for two hours at a speed of 6 miles per hour. How far did she run?

Answers

Answer:

12 miles

Step-by-step explanation:

6 times 2 = 12

12 miles is the answer

A giant circular fair ride has a radius of 60m, with 12passenger pods spaced around the circumference at equal distances. How far is it directly from the sixth pod to the tenth pod?

Answers

Answer:

The distance between the 6th and 10th seat is approximately 126m

Step-by-step explanation:

First of all, we will need to calculate the circumference of the circular fair ride.

This is [tex]2\pi r= 2 \times \pi \times 60=377m[/tex]

hence the circumference of the circle is 377m

At this point, we will have to take note that the pods are equally spaced.

To get the distance between the sixth pod and the tenth pod, we will have to use the principle of fractions of a whole.

There are 12 seats in total, the distance between the 6th and tenth seat is 4 seats. Expressing this distance in terms of seats, as a fraction is 4/12 equally spaced seats.

This ratio can be related to the circumference of the circle as

[tex]\frac{4}{12} \times377=125.66m \approx 126m[/tex]

Therefore, the distance between the 6th and 10th seat is approximately 126m

9. Use the quadratic formula to solve the equation.
- x? - 5x+6= 0
O -12,2
O -6,1
O-27, 22
O-1,6

Answers

you’re answer here is the third one
your answer the third one

A trader purchased 1,000 books at the rate of $5.40 per book and spent $200 towards transportation. If he wants to earn a profit of 12.5%, at what price should he sell each book? ( with explanation )

Answers

Answer:

$6,300

Step-by-step explanation:

Step 1

Find the Cost Price of the books

A trader purchased 1,000 books at the rate of $5.40 per book

This is calculated as:

If 1 book = $5.40

1000 books = ???

We cross multiply

1000 books × $5.40

= $5,400

He bought 1000 books for $5,400

His total cost price = Transportation + Cost of books

Transportation = $200

Cost price = $5,400 + $200

= $5,600

Step 2

Find the profit he made from the sale of the books

Percentage profit = Profit / Cost price × 100

Percentage profit = 12.5%

Cost price = $5,600

We have :

12.5 = Profit/ $5,600 × 100

12.5 = (100 × Profit)/ $5,600

Cross multiply

12.5 × $5,600 = 100 × Profit

Divide both sides by 100

(12.5 × $5,600) ÷ 100 = Profit

Profit = $700.

Step 3

Find the selling price

The Formula to calculate Selling Price is given as:

Selling price = Cost Price + Profit

Selling price = $5,600 + $700

Selling price = $6,300

Time Limit!

Find the eleventh term in this sequence.
3, 6, 12, 24,
А. 1,027
оооо
B.3,072
С. 2,051
D.6, 144

Answers

The correct answer is B.3,072. The method is quite simple all you need to do is add the previous number to itself in order to get the next term e.g 3+3=6.............24+24= 48 until the eleventh term.

Hope this helps ya

I need help on this.​

Answers

Answer:

hello

Thanh have 3,5 meters of fabric. i can say

3,5/1 for it.

and i can say 35/10

now he used three-fourths of a meter of fabric.

its equal to 3/4

now i have to remove 3/4 from 35/10.

35/10 - 3/4

denominators have to be same thats why im expanding them to 20.

35×2/10×2 = 70/20

3×5/4×5 = 15/20

now i can remove 15/20 from 70/20!

70/20 - 15/20 = 55/20

we cannot see 55/20 in the options.

thats why im dividing them with 5.

55÷5= 11 20÷5=4

the answer is 11/4

11/4 = 2and 3/4

so its option 2

good luck(:

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