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
Aleksandr [31]
3 years ago
5

What is the residual of a week in which a barrel of crude oil costs $60 and a barrel of jet fuel costs $78?

Mathematics
1 answer:
ki77a [65]3 years ago
6 0

Answer:

residual cost = $24.57

Step-by-step explanation:

The residual is the difference between the observed value of y and the predicted value of y. The least square regression equation was used to predict cost in dollars per barrel of jet fuel  from the cost , in dollars ,per barrel of crude oil. The residual value is the difference between the observed or measured value and the predicted value of  the regression model . The predicted value is gotten from the regression equation.

y = 2 + 6/7 x

where

x = cost of a barrel of crude oil

x = $60

y = 2 + 6/7 × 60

y = 2 + 360/7

y = 2 + 51.4285714286

y = 53.4285714286

y = $53. 43

predicted cost = $53. 43

Measured cost  = $78

residual = observed value - predicted value

residual = 78 - 53.43

residual cost = $24.57

You might be interested in
Convert the integral below to polar coordinates and evaluate the integral.
White raven [17]

I suppose the integral is

\displaystyle\int_0^5\int_y^{\sqrt{25-y^2}} xy\,\mathrm dx\,\mathrm dy

The integration region corresponds to a sector of a cirlce with radius 5 subtended by a central angle of π/4 rad. We can capture this region in polar coordinates by the set

R=\left\{(r,\theta)\mid0\le r\le5,0\le\theta\le\dfrac\pi4\right\}

Then x=r\cos\theta, y=r\sin\theta, and \mathrm dx\,\mathrm dy=r\,\mathrm dr\,\mathrm d\theta. So the integral becomes

\displaystyle\iint_Rxy\,\mathrm dx\,\mathrm dy=\int_0^{\pi/4}\int_0^5r^3\sin\theta\cos\theta\,\mathrm dr\,\mathrm d\theta=\frac{625}{16}

7 0
3 years ago
What is 7+9(9×6)26×74=?×6​
sp2606 [1]

Answer:13uh9u318

Step-by-step explanation:

5 0
3 years ago
Find the slope of each line
Paraphin [41]

Answer: 7/3

Step-by-step explanation: From the leftmost, lower point to the uppermost point, you move upwards 7, and rightward 3. Slope is vertical movement over horizontal, giving 7/3.

5 0
3 years ago
Whats equivalent to 14(8−6x+12)
iren2701 [21]
We can use the distributive property to set up an expression that is equal to this problem. 

14 times 8 is 112
14 times -6 is -84x
14 times 12 is 168
(If you don't know the distributive property ask and I can explain it)

We can combine that together to get:

112 +168 -84x
Or, condense it further:

280-84x is equivalent to 14(8-6x+12)
8 0
3 years ago
Read 2 more answers
55.5% repeating as a decimal​
liberstina [14]

Answer:

0.555

Step-by-step explanation:

When you ask, "What is 55.5 as a decimal?", we assume you want to know what 55.5 percent is as a decimal. In other words, 55.5 percent converted to decimal.

First, we will tell you why it is useful to know 55.5 as a decimal.

Normally, to calculate 55.5 percent, you would multiply a number by 55.5 percent and then you would take the product of that and divide it by 100 to get the answer.

Instead, you can simply multiply a number by 55.5 as a decimal to get the answer.

55.5 percent means 55.5 per hundred. Therefore, to get 55.5 as a decimal, all you have to do is divide 55.5 by 100 like so:

55.5 ÷ 100 = 0.555

5 0
3 years ago
Read 2 more answers
Other questions:
  • What's 2a - 3 = 4 + 11 ( a + 1
    9·2 answers
  • Choose the most appropriate translation of the English sentence.
    10·1 answer
  • Solve the equation t - 8 = -3.
    5·2 answers
  • What is the positive square root of 9/16​
    15·2 answers
  • a circle has a radius with 3. an arc in this circle has a central angle of 20 degrees. what is the length of the arc
    7·1 answer
  • Answer to the question
    6·1 answer
  • Can Someone Please Answer Question #23 for me make sure u show work. Thank you
    7·1 answer
  • H e l p<br> im so confused
    10·2 answers
  • What is 35 divided by 97.3
    10·1 answer
  • A 12-toot wall measures 2.5 inches on a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!