The fuel efficiency of passenger cars has increased significantly since the 1970s. A linear model of this situation is given below, where x represents the number of years after 1970, and y represents the average miles per gallon. Interpret the slope.
A. For each year since 1970, passenger car fuel efficiency has increased by 0.29 gallons per mile.
B. For each year since 1970, passenger car fuel efficiency has increased by 13 gallons per mile.
C. For each year since 1970, passenger car fuel efficiency has increased by 0.29 miles per gallon.
D. For each year since 1970, passenger car fuel efficiency has increased by 13 miles per gallon.
Answers
its C not A because
For each year since 1970, passenger car fuel efficiency has increased by 0.29 miles per gallon.
Answer: The answer is C. For each year since 1970, passenger car fuel efficiency has increased by 0.29 miles per gallon.
Step-by-step explanation:
In a linear model of the form y = mx + b, m is the slope and b represents the y-intercept.
In this situation, 0.29 is the slope.
The slope is the ratio of the change in y to the change in x.
In context, the slope indicates an increase of 0.29 miles per gallon per year after 1970.
Therefore, the slope means that for each year since 1970, passenger car fuel efficiency has increased by 0.29 miles per gallon.
Related Questions
Fatimah got a 52 out of 50 points on her American Government quiz due to an extra credit question. Write her grade as a mixed number in simplest form. HELP
Answers
Answer:
1 1/25
Step-by-step explanation:
Fatimah's grade is 52/50. You can write this as 1 + 2/50 = 1 + 1/25 =
1 and 1/25.
There is one 50 in 52, so the first part of our answer will be a 1.
After that, there are 2/50 left over.
2/50 simplified is 1/25 (divide both sides by 2)
Therefore, the answer is 1 1/25
How can I find the cube root of 64?
Answers
Answer:
4
Step-by-step explanation:
The cube root of 64 is the number which when multiplied by itself three times gives the product as 64. Since 64 can be expressed as 2 × 2 × 2 × 2 × 2 × 2. Therefore, the cube root of 64 = ∛(2 × 2 × 2 × 2 × 2 × 2) = 4.
The cube root of 64 is 4.
Before solving the question, let's understand the concept of cube root.
The cube root of a number is the value obtained by multiplying it by itself three times or thrice. When we multiply 3 by itself three times, we get 3 x 3 x 3 = 27 = 3³, so the cube root of 27 is 3. Thus, we can say that the cube root gives a value that is basically cubed.
The cube root is denoted by ∛
Now, we will find the cube root of 64.
Firstly, we have to find factor 64.
64 = 2 × 2 × 2 × 2 × 2 × 2.
64 = ∛4³
64 = 4
Therefore, the cube root of 64 is 4.
To know more about cube root:
https://brainly.com/question/12105008
helpp mee with the answer pleasee! <3
Answers
Answer:
1. (-7,-3) and (-6,-4) is -1
2. (7,2) and (0,-5) is 1
3. (1,6) and (-3,0) is 1.5
Please help me with this math question
Answers
Answer:
I think is graph but I might be wrong
Step-by-step explanation:
If a vertical line can intersect the graph at two or more points, then the graph does not represent a function. In other words, if a vertical line drawn anywhere only intersects the graph at only one spot, this means that each x value corresponds to only one y value, so the graph represents a function
Answer:
I'm pretty sure its graph
Step-by-step explanation:
Elo can yall help me pls I don't know how to answer this so can you also have an explanation on how to do this, Thank you.
-Obunga
Answers
Answer:
Step-by-step explanation:
The perimeter of a polygon is the total length of the boundary. For a triangle, we can find it by adding the lengths of its three sides. So, if ABC is a triangle. We find the perimeter of triangle ABC by adding the length of all the three sides.
NEED HELP ASAP 27 hundredths is written this way: 0.27. Which scale shows 0.27 kilogram?
Answers
add use models if needed (-3x+7)+(-6x+9)
Answers
Determine the positive and negative interval , the answer should be written as an inequality or interval notation
Answers
I'm kinda stuck. Can anyone help?
Answers
Answer:
C) 147 ft²
Step-by-step explanation:
Bottom rectangle:
A = bh
A = 14(7)
A = 98
Top rectangle:
A = bh
A = 7(7)
A = 49
Combined:
98 + 49
147
Does anyone have the answer key to "Understand Systems of Linear Equations I-ready level H instruction?"
Answers
Answer:
no bro, sorry. even though I needed to I don't have it
Please help me I will give you the brain thing and extra points. (image below) 18/30
Answers
Answer:
B
Step-by-step explanation:
sjsjsjsjsjjsjsjsjdjdjjdjdjs
Answer:B
Step-by-step explanation:
Hi
Answer needed by 1:20pm (does anyone know how to find all answers to IXL Y.11???)
Answers
Answer:
91ft^2
Step-by-step explanation:
A = w*l
first, solve for the bottom rectangle
w = 7ft
l = 8ft
7ft * 8ft = 56ft^2
then for the second rectangle
l = 5ft
w = 7ft
5ft*7ft = 35ft^2
total area = rectangle 1+2
so 35ft^2+56ft^2=91ft^2
Answer:
The answer for the Area of the shape is 91ft²
Step-by-step explanation:
Area of the shape =Area of Bigger rectangle+ Area of small rectangle
A=L×B+l×b
A=7×8+5×7
A=56+35
A=91ft²
Find an expression for the height of a parallelogram whose area is represented by 2x^3 − x^2 − 20x + 3 and whose base is represented by (x + 3).
Answers
Answer:
The height of parallelogram is \(2x^2-7x+1\)
Step-by-step explanation:
Area of parallelogram =\(Base \times Height\)
Area of parallelogram = \(2x^3 -x^2 -20x + 3\)
Base of parallelogram = x+3
So, \(2x^3-x^2-20x + 3 = height \times (x+3)\)
\(\frac{2x^3- x^2 -20x + 3}{x+3}= height\\2x^2-7x+1=Height\)
Hence The height of parallelogram is \(2x^2-7x+1\)
Answer:
^^^^^^^
correct
Step-by-step explanation:
Which sign makes the statement true?
5.7 x \(10^{2}\) 5,700,000,000,000
Please help me quickly!!
Answers
Answer:
<
Step-by-step explanation:
the exponent will tell you how many places u need to move the decimal. 5.7 × 10 to the 2nd power = 570. u moved the decimal 2 places to the right.
If we interpret the statement correctly "5.7 x 5,700,000,000,000" means to multiply 5.7 with 5,700,000,000,000, which gives us the result of 32,490,000,000,000.
Therefore, we can write the statement as: 5.7 x 5,700,000,000,000 = 32,490,000,000,000.
I need help with this ASAP! Will mark brainliest.
Answers
Answer:
58 and 11
Step-by-step explanation:
f-1(f(x))=x, so f-1(f(58))=58
f(f(5))=f(9)=11; (because f(5)=9)
The answer should be 58 and 11
Must click thanks and mark brainliest
The following factor chain can be multiplied together to find the LCM of two numbers: 2 x 2 x 2 x 3 x 5 x 5. If the GCF is 30, give an example of what the two numbers can be.
Answers
Answer:
the 2 numbers could be 10 and 3
Step-by-step explanation:
PLEASE HELP ME WITH MATH LOL
Answers
Answer:
a
Step-by-step explanation:
it is a straight line coming out of the origin
Coming straight out of the orgin straight line
please help i will mark brainliest
Answers
Answer:
Search it online
Step-by-step explanation:
cause I can’t see it clearly
Answer:
9. 6ft
10. 54.3 inches
Step-by-step explanation:
HELP ANSWER THIS I WILL GIVE TEN POINTS AND THANKS!
REMEMBER TO EXPLAIN STEP-BY STEP! AND GET THE CORRECT ANSWER!
The units and tens digits of one-two digit integer are the tens and units digits of another two- digit integer, respectively. If the product of the two integers is 4930, what is their sum?
Answers
Answer:
(10t + u)(10u + t) = 4,930
100tu + 10t^2 + 10u^2 + tu = 4,930
101tu + 10t^2 + 10u^2 = 4,930
10t^2 + (101u)t + (10u^2 - 4,930) = 0
(101u)^2 - 4(10)(10u^2 - 4,930)
= 10,201u^2 - 400u^2 + 197,200
= 9,801u^2 + 197,200
We see that u = 5 gives 442,225.
√442,225 = 665
(10t + 5)(50 + t) = 4,930
500t + 10t^2 + 250 + 5t = 4,930
10t^2 + 505t - 4,680 = 0
2t^2 + 101t - 936 = 0
t = (-101 + √(101^2 - 4(2)(-936)))/(2×2)
= (-101 + √17,689)/4
= (-101 + 133)/4 = 32/4 = 8
So the numbers are 58 and 85.
58 + 85 = 143
plse if have qu give the crown so i can level up
Answers
Answer:
??
Step-by-step explanation:
Answer:
Step-by-step explanation:
I have no idea what you just said
please i am almost done
Answers
Answer:
42
Step-by-step explanation:
68 - 26 = 42
Have a nice day
At a football stadium, 25% of the fans in attendance were teenagers. If there were 10 teenagers at the football stadium, what was the total number of people at the stadium?
i need helppp plsss
Answers
25% x 4 = 100% = Total
25%= 10 People
10 people x 4 = 40 people = Total
ILL GIVE BRAINLIEST AND 25 POINTS
Germany entered the world war in which year (day/month/year) and fought against what countries?
Answers
Here :)
Germany entered into World War 1 on August 1, 1914 & Great Britain, France, Russia, Italy, Romania, Canada, Japan and the United States (the Allied Powers).
I hope this helps
Answer: See the answer below.
Step-by-step explanation: On August 1, 1914, Germany declared war on Russia and two days later, declared war on France. Germany fought France and Russia, but also fought Serbia, Italy, Britain, and the United States. The countries that sided with Germany included Austria-Hungary, Bulgaria, and the Ottoman Empire, which formed the Central Powers.
Hope this helps! :)
The mass of an electron is approximately 9.1 x 10^-31 kilograms.
The mass of a proton is approximately 1.7 x 10^-27 kilograms.
Approximately how many times greater is the mass of a proton than the mass of a electron?
A. 5,500
B. 1,900
C. 19,000
D. 55,000
Answers
Answer:
1900
Step-by-step explanation:
hello bro how r u i think answer is 1835 but there is no option
The required mass of the proton is 1900 times the mass of the electron. Option B is correct.
What is proportionality?Proportionality is defined as between two or more sets of values, and how these values are related to each other in the sense are they directly proportional or inversely proportional to each other.
here,
The mass of an electron is approximately e = 9.1 x 10⁻³¹ kilograms.
The mass of a proton is approximately p = 1.7 x 10⁻²⁷ kilograms.
Now
p/e = 1.7 x 10⁻²⁷/9.1 x 10⁻³¹
p/e ≈ 1900
p = 1900e
Thus, the required mass of the proton is 1900 times the mass of the electron.
Learn more about proportionality here: https://brainly.com/question/22620356
#SPJ5
Please help asap! Change the negative exponent to a positive exponent. Thanks a bunch!♡♡
Answers
Answer:
1/ 5^9
Step-by-step explanation:
Someone help me with this really fast !
Answers
plz help me i need 100%
Answers
The slope would be
m= 5/7
the parent’s height is 9 cm and the child’s height is 6 cm.
The child’s actual height is 1.3 m.
What is the actual height of the parent?
Answers
Answer:
1.95 m
Step-by-step explanation:
The ratio between the parent's height and the child's height stays the same.
Therefore, 9:6 = 1.5:1.
1.5:1 = x:1.3
Hence, after calculation, the parent's height is 1.95 m.
Please give Brainliest if you found this helpful!
Answer:
19.5
Step-by-step explanation:
!!!!20 POINTS!!!!!
PLEASE ANSWER THIS!!! I HAVE AN ALGEBRA TEST TOMORROW!!!
What is the solution to the systems of equations shown below?
Answers
Answer:ooooooooo 20 POINTS
Step-by-step explanation: SAY LESS 360
PLEASE HELP NEED THE ANSWER ASAP
ILL GIVE 100 POINTS AND BRAINLIEST
Answers
Answer:
∠3=60°
Step-by-step explanation:
IS THIS YOUR i-Ready DIAGNOSTIC!!!
55+5=60
∠1=∠3 because they are across from each other
if ∠1=60, so does ∠3
Answer: 60
Step-by-step explanation:
When the line y rotated clockwise 5° which means right shift of the line y to the 5° makes the ∠1 60°
∠1 =∠3 ( Vertically opposite angles)
∠3= 60°