1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Aleks [24]
3 years ago
12

Engineers are designing a rollercoaster that at one point goes underground. The rollercoaster’s path underground is a large curv

e. The engineers use the function shown to model the elevation, ܧ ,in feet and ݐ , time, in seconds, of the rollercoaster’s path while it is underground.
Mathematics
1 answer:
Goshia [24]3 years ago
4 0

Answer:

One way to solve the quadratic equation x2  = 9 is to subtract 9 from both sides to get one side equal to 0: x2  – 9 = 0. The expression on the left can be factored:

(x + 3)(x – 3) = 0. Using the zero factor property, you know this means x + 3 = 0 or x – 3 = 0, so x = −3 or 3

Step-by-step explanation:

One way to solve the quadratic equation x2  = 9 is to subtract 9 from both sides to get one side equal to 0: x2  – 9 = 0. The expression on the left can be factored:

(x + 3)(x – 3) = 0. Using the zero factor property, you know this means x + 3 = 0 or x – 3 = 0, so x = −3 or 3

You might be interested in
You have $125.60 in quarters and
Sloan [31]

Answer:

Quarters = q = 200

Dimes = d = 756

Step-by-step explanation:

Let

Dimes = d

Quarter = q

Value of each Dime = 0.10

Value of each Quarter = 0.25

d + q = 956 (1)

0.1d + 0.25q = $125.60 (2)

From (1)

d = 956 - q

Substitute d = 956 - q into (2)

0.1d + 0.25q = $125.60

0.1(956 - q) + 0.25q = $125.60

95.6 - 0.1q + 0.25q = $125.60

- 0.1q + 0.25q = 125.60 - 95.6

0.15q = 30

Divide both sides by 0.15

q = 30 / 0.15

= 200

q = 200

Substitute q = 200 into (1)

d + q = 956

d + 200 = 956

d = 956 - 200

= 756

d = 756

Therefore,

Quarters = q = 200

Dimes = d = 756

3 0
3 years ago
Can anybody help me out with this one, please!!!!!!!!!!!! HELP!!!!!!!!!!!!!!!!!!!!!!!!!!
Damm [24]
The missing side length is 42
4 0
3 years ago
(-11/20) ÷ (-4/16) =
makvit [3.9K]

Answer:

2.2

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Please help explain good luck
Tcecarenko [31]

Answer:

27

Step-by-step explanation:

Remember to follow PEMDAS. Note that, when multiplying or dividing:

1) one positive and one negative = negative number

2) two positive = positive number

3) two negative = positive number

(-7)(-5) = -7 * -5 = 35

+(-8) = +1 * -8 = -8

Subtract:

35 - 8 = 27

27 is your answer.

~

8 0
3 years ago
Read 2 more answers
Find the measure of one exterior angle. Round your answer to the nearest 3 points
Ugo [173]

Answer:

aikajwbuabsbss

abhsua w

wmhabw

8 0
3 years ago
Other questions:
  • Solve for y 3y/7 − 6 = 30
    10·1 answer
  • The problem is in the image, please help. Thanks
    7·2 answers
  • On average, the parts from a supplier have a mean of 35.8 inches and a standard deviation of 2.4 inches. Find the probability th
    15·1 answer
  • How many more vehicles have been driven between 50 and 100 thousand than between 250 and 300 thousand kilometers?
    13·1 answer
  • 5 95 8,994 + 11 11 9,010 =
    9·1 answer
  • How many hours and minutes elapsed from 8:00 a.m to 2:30 p.m?
    5·1 answer
  • Find the gradient of the line segment between the points (0,2) and (-2,10).​
    11·1 answer
  • A first number plus twice a second number is 8 twice the first number plus the second totals 25
    14·1 answer
  • an online article suggested for each additional person who took up regular running for exercise the number of cigarette smoke da
    6·1 answer
  • Which expression is equal to...
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!