Pls help me find the operations of 3a^2+4a^2+7a^2​

Answers

Answer 1
Answer:

Answer:

14a^2

Step-by-step explanation:

3a^2+4a^2+7a^2

Combine like terms

Factor out a^2

a^2(3+4+7)

a^2(14)

14a^2

Answer 2
Answer:

Answer:

14 a²

Step-by-step explanation:

3a² + 4a² + 7a²

collect like terms

(3 + 4 + 7)a² .. ( factor out :- a²)

calculate the sum

14 a²


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Suppose P is between M and N. If MN = 10, MP = x-3, and PN = x+1, what is the value of x?

Answers

MN = MP + PN

10 = (x - 3) + (x + 1)

10 = x + x - 3 + 1

10 = 2x - 2                        (add 2 to each side)

12 = 2x                             (divide 2 from each side)

12/2 = x

6 = x
answer




What is 3 root of − 216

Answers

Hello,

6i√6 and -6i√6 are the roots that negative number.

At 3:25 p.m., two trains left Kalamazoo, Michigan. One train traveled westward at a constant rate of 82 miles per hour, while the other traveled eastward at a constant rate of 66 miles per hour. If they are now 11 miles apart, what time is it now?

Answers

you would add 1 hour per mile apart so maybe 1:25 am but i might be wrong

Solve Mathematics question. Photo

Answers

Take a look at the photo attached.

1. Wonderland Water Park
The Coaster $4.50
The Slide $4.00
The Drop $3.50


You and three friends are going to Wonderland Water Park. Your group plans to ride each water ride twice. Prices are shown in the table above.

How much change will you get back from a $100 bill?

(Points : 1)
$96
$76

$24
$12





Question 2. 2.
Wonderland Water Park
The Coaster $5.50
The Slide $2.00
The Drop $6.50


You and three friends are going to Wonderland Water Park. Your group plans to ride each water ride three times. Prices are shown in the table above.

How much change will you get back from a $100 bill?

(Points : 1)
$14
$28
$56
$58






Question 3. 3.
Wonderland Water Park
The Coaster $5.50
The Slide $2.00
The Drop $6.50


You and three friends are going to Wonderland Water Park. The park has three water rides. Prices are shown in the table above.

If you have $15, then how many times could you ride The Coaster?

(Points : 1)
1
2
3
4





Question 4. 4.
Homer Ballpark Ticket Prices
Bleachers $2.50
Grandstand $4.50
Reserved $6.75
Box $10.50


Prices for Homer Ballpark tickets are shown in the table above.

How much change will you get from $60 if you buy tickets for 1 Reserved, 2 Grandstand and 2 Box Seats?

(Points : 1)
$0
$66.75
$35.75
$23.25





Question 5. 5.
Homer Ballpark Ticket Prices
Bleachers $2.50
Grandstand $4.50
Reserved $6.75
Box $10.50


Prices for Homer Ballpark tickets are shown in the table above.

What is the total cost if you buy 3 Reserved, 3 Grandstand and 2 Box tickets?

(Points : 1)
$54.75
$65.25
$55.00
$60.50





Question 6. 6.
Homer Ballpark Ticket Prices
Bleachers $2.50
Grandstand $4.50
Reserved $6.75
Box $10.50


Prices for Homer Ballpark tickets are shown in the table above.

If you have $80, then how many Box seats can you purchase?

(Points : 1)
7

10
8
18





Question 7. 7.
Forest Heights Park
All Day Pass $19.95
The Carousel $2.50
Pirate Adventure $4.25
The Claw $2.75
Giant Trapeze $3.25
Ferris Wheel $2.25
Haunted House $2.50

Check my answers please and Thank
You intend to ride all of the rides exactly one time each on your trip to Forest Heights Park. Which would be least expensive: pay separately or buy the all day pass?

(Points : 1)
Pay Separately
All Day Pass

Answers

1. The answer is 76.

If the group all together is only being charged once per ride, and the whole group is going twice, then you will double the cost of each ride:

4.50 x 2 = 9
4 x 2 = 8
3.50 x 2 = 7

In total, the rides will cost $24. So, if you're paying with a $100 bill, you will receive $76 in change.

2.2 The answer is 58.

You will do the same procedure as the first question, but this time multiply the costs by 3. 

5.50 x 3 = 16.5
2 x 3 = 6
6.50 x 3 = 19.5 

The total will be 42. Subtracted from 100, you will get 58.

3.3 The answer is 2. 

If you have 15 dollars and the coaster costs 5.50, the first time you ride it you will have 9.50 left. The second time, you will have 4 dollars left, and then you will not be able to pay for a third time.

4.4 The answer is 23.25

If you add up all the correlating costs of the tickets (6.75 + 4.50 + 4.50 + 10.50 + 10.50), you will get 36.75. Then you must subtract that from 60, which will give you 23.25 dollars in change.

5.5 The answer is 54.75

You will do the same procedure here as you did above. Add the corresponding costs together (you're done after this part, because the question isn't asking for how much change you'll receive). 

6.6 The answer is 7.

If the tickets cost $10.50 and you have $80, then you want to divide 80 by 10.50. You will get 7.6. Since you can't buy a sixth of a ticket, your answer will be 7.

7.7 The answer is to pay separately.

In this question, you will add all the costs together (except the day pass) and compare it to the cost of the day pass. Once you add all the costs together, you will get 17.50. This is cheaper than the day pass, which is 19.95.



I took the test

1. 4

2. 168

3. 2

4. 23.25

5. 54.75

6. 7

7. Pay separately

WILL FAN AND MEDAL!! Dilation problem!!!Polygon MNOPQ is dilated by a scale factor of 0.8 with the origin as the center of dilation, resulting in the image M′N′O′P′Q′. If M = (2, 4) and N = (3, 5), what is the slope of line M'N'?

Answers

Answer:

Slope of line M'N' is 1.

Step-by-step explanation:

Given: M= (2,4) and N = (3, 5) ; K = 0.8

The rule of dilation with origin as the center:

(x ,y) \rightarrow (kx , ky) where k is the scale factor i.e k = 0.8

or   (x ,y) \rightarrow (0.8x , 0.8y)

Then:

Apply this on coordinates of MNOPQ to find M' and N'.

M(2 ,4) * (0.8\cdot 2 , 0.8\cdot 4) = M'(1.6 , 3.2)

N(3 ,5) * (0.8\cdot 3 , 0.8\cdot 5) = N'(2.4 , 4)

Slope of line for any two points (x_1 , y_1) and (x_2, y_2) is given by:

m = (y_2-y_1)/(x_2-x_1)

To find the slope of line M'N':

we have M' = (1.6 , 3.2) and N' = (2.4, 4)

then by slope formula;

Slope of line M'N' = (4-3.2)/(2.4-1.6)=(0.8)/(0.8) = 1

Therefore, slope of line M'N' is 1.


slope=((y2)−(y1))/((x2)−(x1))=(5-4)/(3-2)=1/1=1 The answer is one