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
AlladinOne [14]
3 years ago
6

The display gives the result of performing a quadratic regression on a data set where the inputs are speeds in miles per hour an

d the outputs are the corresponding braking distances in feet. What is the stopping distance for a vehicle traveling at 20 mph?

Mathematics
1 answer:
alina1380 [7]3 years ago
7 0
Y = a x² + b x + c
y = 0.0473809524 · 20² + 2.221428571 · 20 - 0.005952381 = 
= 18.95236 + 44.42875 - 0.05952381 = 63.374978 ≈ 63.4
Answer: C ) 63.4 ft.
You might be interested in
Geometry math question no Guessing and Please show work
nignag [31]

2x - y = 7

y = 2x - 7 this line has slope = 2

Perpendicular lines, slope is opposite and reciprocal so slope = -1/2

Answer

A . -1/2

3 0
4 years ago
Read 2 more answers
-7/10 - 4/10 i dont understand
Vanyuwa [196]

Note that they have the same denominator. Simplify.

-7 - 4 = -11

-11/10 is your improper fraction.

To simplify, make it into a mixed fraction

-11/10 = -10/10 - 1/10

-10/10 = -1

-1 1/10 is your answer

hope this helps

6 0
4 years ago
24a - 12b HELP Me PLZ
nevsk [136]
12(2a-b) would be your answer :)
4 0
3 years ago
Which of the following sequences is not arithmetic?
Yanka [14]

Answer:

option c

Step-by-step explanation:

c doesnt follow a pattern

3 0
3 years ago
Read 2 more answers
14. Let R^2 have inner product defined by ((x1,x2), (y,, y2)) 4x1y1 +9x2y2 A. Determine the norm of (-1,2) in this space B. Dete
Vitek1552 [10]

The norm of a vector \vec x is equal to the square root of the inner product of \vec x with itself.

a. \|(-1,2)\|=\sqrt{\langle(-1,2),(-1,2)\rangle}=\sqrt{4(-1)^2+9(2)^2}=\sqrt{40}=2\sqrt{10}

b. \|(3,2)\|=\sqrt{\langle(3,2),(3,2)\rangle}=\sqrt{4(3)^2+9(2)^2}=\sqrt{72}=6\sqrt2

7 0
4 years ago
Other questions:
  • Which rational functions have an oblique asymptote?Check all that apply.
    15·2 answers
  • What is 2 9/10 as a decimal.
    10·2 answers
  • The area of a triangle is 1440cm^2 the base of tge triangle is 5 times the height of the triangle
    7·1 answer
  • Find the function value, f(4) if f(x) = 12x - 1
    6·2 answers
  • A triangle is in the shape of a 30-60-90 right triangle. If the hypotenuse is 11 cm long, find the length of the shorter leg.
    5·1 answer
  • Rewrite the following without an exponent.<br> (8/9)^-2
    6·1 answer
  • Help on this question?
    7·1 answer
  • Determine two pairs of polar coordinates for the point (5, -5) with 0° ≤ θ &lt; 360°
    14·2 answers
  • 3/4 + 2 1/2 + 4 1/4 porfavor ayudaaa
    9·1 answer
  • Help me pls I will mark brainlist
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!