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
timurjin [86]
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
2 answers:
Amanda [17]3 years ago
6 0
Y ( 2 ) = - 5.131 · 2² + 31.821 · 2 - 3.3333 = 
= - 5.131 · 4 + 63.642 - 3.3333 = -20.524 + 63.642 - 3.3333 = 39.78 ≈ 40
Answer: B ) 40.
tekilochka [14]3 years ago
6 0

Answer:

the answer is C 46

Step-by-step explanation:

I took the test, <3

You might be interested in
Help (20 points, due tmr!! )<br><br> *pic below* :)
sveta [45]
Angles:
2 acute angles and 2 obtuse angles

Sides:
2 pairs pf parallel sides
7 0
3 years ago
Simplify: |x−y| if x is less than y
blondinia [14]

Answer:

y-x

Step-by-step explanation:

I assumed you meant that you wanted me to rewrite the expression without the absolute value signs. Since the absolute value of a number will be the same whichever way you place the numbers, you can rewrite |x-y| as y-x, as x is less than y.

8 0
3 years ago
Which algebraic expression represents “the quotient of a number and thirty”?
Anestetic [448]

Answer: 30/a

Step-by-step explanation:

Quotient means to divide. So the quotient of 30 and another number would be 30/a

3 0
3 years ago
Read 2 more answers
Which is the equation of a hyperbola centered at the origin with y-intercepts +12 -12, and asymptote y=3x/2
dangina [55]

Answer:

\frac{y^2}{144}-\frac{x^2}{64}=1

Step-by-step explanation:

The equation of a hyperbola centered at the origin with vertices on the y-axis is given by: \frac{y^2}{a^2}-\frac{x^2}{b^2}=1

The vertices of the hyperbola are the y-intercepts (0,12) and (0,-12)

This implies that:

2a=|12--12|

2a=24

a=12

The asymptote equation of a hyperbola is given by:

y=\pm\frac{a}{b}x

The given hyperbola has asymptote: y=\pm\frac{3}{2} x

By comparison; \frac{a}{b}=\frac{3}{2}

\implies \frac{12}{b}=\frac{12}{8}

\implies b=8

The required equation is:

\frac{y^2}{12^2}-\frac{x^2}{8^2}=1

Or

\frac{y^2}{144}-\frac{x^2}{64}=1

6 0
3 years ago
Read 2 more answers
Please anwser fast it’s due in 5 minutes
riadik2000 [5.3K]

Answer:30000 just 5000+  six time

6 0
3 years ago
Other questions:
  • What is the solution set of the following system of equations?
    9·1 answer
  • 3x+2=7x+6 what is x​
    10·2 answers
  • Trey reads 10 pages in 25 minutes. At the rate, how many pages will he read in 45 minutes?
    11·1 answer
  • simplify the expression by combining the terms, write the terms from highest to the lowest power of the variable 4y^2+y^2-3y-6+1
    7·1 answer
  • How many different factors does the number 40 have?
    11·1 answer
  • Please help me with this
    6·1 answer
  • What is (2n+2n)-(3n-4n)
    13·1 answer
  • Can someone help me please
    9·1 answer
  • Please help my sister again I can’t stand her she’s making me mad
    5·2 answers
  • Need help anyone know how to do this
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!