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timofeeve [1]
2 years ago
10

A roller coaster begins at 418 feet above sea level. Then it descends 384 feet. What is the height of the roller coaster after i

t descends?
Mathematics
1 answer:
Ainat [17]2 years ago
3 0

Answer:

34 feet

Step-by-step explanation:

418 - 384 = 34 feet above sea level

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2x-7y=12 for y answer please​
Marat540 [252]

Answer: If you want mx + b= y form and you want the y intercept, then the answer would be 2x/7 - 12/7 = y. The y intercept is b, so it is 12/7.

Step-by-step explanation: 2x - 7y = 12

Move -7y to the other side: 2x= 12 + 7y

Subtract 12 to the left side: 2x - 12 = 7y

Then divide 7 into everything: 2x/7 - 12/7 = 7y/7

The 7s in the right side cancel out, so the equation is now: 2x/7 - 12/7 = y

The y intercept is b, which is the second term in the equation, so the

Y Equals : 12/7

I hope this is what you are looking for!  

6 0
3 years ago
Read 2 more answers
The price of oranges went from $.90 per lb to $1.20in five years.find the rate of change of the price of oranges.
kiruha [24]
1.20 - .90 = .30

.30 / 5 = .06 (Same as 30 / 5)

The price of a pound of oranges went up by 6 cents per year.
4 0
2 years ago
You have been asked to build a scale model of your school out of toothpicks. imagine your school is 30 feet tall. your scale is
sveticcg [70]
Since your scale is 1ft:1.26cm, a 30-ft tall school would need to have a 30*1.26=37.8 cm model. Dividing this by how tall each toothpick is, you'll get:

\frac{37.8}{6.3} =6

ANSWER: The model would be 6 toothpicks tall.

To find out how many cotton swabs you'll need, we just divide 37.8 by how tall each swab is:

\frac{37.8}{7.7} =5

ANSWER: The model would be 5 cotton swabs tall.
4 0
3 years ago
Fine the sum of the first 8 terms of the arithmetic series 2+7+12+...
ss7ja [257]

Answer:

156

Step-by-step explanation:

s8 = n/2 [2t + (n-1)(d)]

= 8/2 [2(2) + (8-1)(5)]

= 4 [4 + (7)(5)]

= 4 (4 + 35)

= 4 (39)

= 156

4 0
2 years ago
Which of the following is a conjugate for 7 + iSquare root of 2?
olganol [36]
Conjugate of a complex number a + ib = a - ib.
Therefore, conjugate of 7 + isqrt(2) = 7 - isqrt(2)
6 0
3 years ago
Read 2 more answers
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