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
lubasha [3.4K]
3 years ago
12

The equation yˆ=−5.131x2+31.821x−3.333 approximates the number of people standing in line to catch a commuter train x hours afte

r 5 a.m. What is the best estimate for the number of people in line at 8 a.m.?
a.32
b.40
c.46
d.77
Mathematics
1 answer:
masya89 [10]3 years ago
7 0
Given that y is the number of people in the line after 5 am and there are already 3 hours that have passed for 8 am, we substitute 3 to the equation to find the answer.
                        y = (-5.131)(3²) + 31.821(3) - 3.333
Simplifying,
                         y = 45.951
Thus, the answer is letter C. 46. 
You might be interested in
Find the value of "x" in the figure shown.
nasty-shy [4]
X is equal to 62 because it has to equal to 180
7 0
3 years ago
Read 2 more answers
iris charges a fee for her consulting services plus an hourly rate that is 1 1/5 times her fee on a 7 hour job and iris charged
Veronika [31]
Based on the given problem above, here is the solution.
Given: Iris's charge: 470
           1 1/5 times her fee: additional hourly rate
           ? = fee for an hourly rate
What we need to do first is divide 470 by 7 hours, so 470/7 = 67.143/hour.
So Iris's per hour is 67.143 without the additional rate.
Now, let's look for the 1 1/5 of 470. 1 1/5 is equal to 1.2. So 470 x 1.2 = 564.
To get the total fee of her hourly rate, we add 67.143 and 564, so Iris's hourly rate then is 631.143 or 631.14.
5 0
3 years ago
Find the discontinues<br> F(x)= sin(x^2-2)
maks197457 [2]
.15(pi)=24-68(0) that is the answer hope it helps
3 0
3 years ago
I suck at math so I'm gunna ask a bunch of questions on this work
Nastasia [14]
It would be c plz mark me brainliest
3 0
3 years ago
Clea estimates that a glass contains 250.55 mL of water. The actual amount of water in the glass is 279.48 mL. To the nearest te
inn [45]
The answer is %30.93 hope this helps
7 0
3 years ago
Read 2 more answers
Other questions:
  • Gas mileage is the number of miles you can drive on a gallon of gasoline. A test of a new car results in 440 miles on10 gallons
    15·1 answer
  • Find the slope<br> (-8, 18) and (-14, -3)
    10·2 answers
  • Jen has 2 meters of taffy. She wants to give each of her three best friends in equal amount of taffy how many centimeters of taf
    8·1 answer
  • Three cans of cat food cost $5.00 how muck will carol spend on 60 worth of cat food
    7·1 answer
  • Can anyone help answer this thanks
    7·2 answers
  • Find the equation of the line with slope = -8 and passing through (-2,12). Write your equation in the
    15·1 answer
  • This is hard pls help.
    14·1 answer
  • 50 POINTS !!<br><br> PLEASE HELP ILL GIVE BRAINLIEST !!
    5·2 answers
  • 4
    9·1 answer
  • Evaluate the expression for f=2. <br><br> 7+3f=
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!