Answers
i believe the answer would be 23 miles per gallon
Related Questions
Select the correct answer.
What are the zeros of this quadratic function?
f(x) = (x − 7)(x + 8)
A.
x = 7 and x = -8
B.
x = -7 and x = 8
C.
x = 0 and x = -8
D.
x = 0 and x = 7
Answers
(x - 7) (x + 8)
Multiply the first x by both numbers in the second factor. Which means, you multiply x by x and 8, the two in (x + 8).
With this, you get -
x^2 + 8x
Then do the same thing with -7.
-7x - 56
Then combine the two.
x^2 + 8x - 7x - 56
Combine like terms.
x^2 + x - 56
So now, 7 x 8 is 56
And -7 + 8 would be 1. And that is the value of “x” which is b in the form a^2x + bx + c.
Now with this, you take those two numbers and make the factors =
(x + 8) (x - 7)
Then you set these equal to 0.
x + 8 = 0
Subtract the 8 from both sides.
x = -8
————
x - 7 = 0
Add the 7 on both sides.
x = 7
Answer: A
Answer:
The answer would be A
Step-by-step explanation:
You can find the answer by doing the FOIL method.
A plane is going to fly 300 miles at a planned speed of 530 mph. The flight will have an average headwind of w miles per hour the entire time, meaning the plane is flying directly against the wind. The time
Tin hours of the flight is a function of the speed of the headwind w, in mph, and can be modeled by
300
T(W) =
530-W
At what value of w does the graph have a vertical asymptote ? Explain what this asymptote means in this situation.
Answers
Answer:
Step-by-step explanation:
T(100) represents that the plane flies against the wind at 110mph for 0.714 hours
What is an approximation?An approximation is anything that is similar to but not identical to something else. Rounding can be used to approximate a number.
Given that a plane is going to fly 300 miles at a planned speed of 530 mph. The equation is T(W) = ( 300 ) / ( 530 -W).
The value of approximation will be calculated as
T(W) = ( 300 ) / ( 530 -W).
T(110) = ( 300 ) / ( 530 - 110)
T(110) = (300 ) / ( 420)
T(110) = 0.714
T(100) represents that the plane flies against the wind at 110mph for 0.714 hours.
To know more about an approximation follow
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$870 is invested in an account earning 2.9% interest (APR),
compounded continuously. Write a function showing the
value of the account after t years, where the annual growth
rate can be found from a constant in the function. Round all
coefficients in the function to four decimal places. Also,
determine the percentage of growth per year (APY), to the
nearest hundredth of a percent.
Answers
Answer:
Step-by-step explanation:
[tex]\text{Continuous compounding is}\\ \\ A=Pe^{rt}\\ \\ V=870e^{0.029t}\\ \\ \text{The yearly growth rate is}\\ \\ e^0.029\approx 1.0294\\ \\ \text{Which is a growth of }2.94\% [/tex]
Jada has read 7/10 of a book. The book has 80 pages. How many more pages does she need to read before she is done with the book?
Answers
Answer:
24 More Pages
Step-by-step explanation:
7/10=0.7=70%
70% of 80 = 56
80 - 56 = 24
24 More Pages
Answer: 24 pages
Step-by-step explanation:
7 x
10 80
560=10x
÷10 ÷10
56=x
56 pages already read
80-56=24
24 pages left
Consider the following information about travelers on vacation: 40% check work email, 30% use a cell phone to stay connected to work, 35% bring a laptop with them, 16% both check work email and use a cell phone to stay connected, and 42.8% neither check work email nor use a cell phone to stay connected nor bring a laptop. In addition, 88 out of every 100 who bring a laptop also check work email, and 70 out of every 100 who use a cell phone to stay connected also bring a laptop.
a. What is the probability that a randomly selected traveler who checks work email also uses a cell phone to stay connected?
b. What is the probability that someone who brings a laptop on vacation also uses a cell phone to stay connected?
c. If the randomly selected traveler checked work email and brought a laptop, what is the probability that he/she uses a cell phone to stay connected?
Answers
Answer:
a. 0.4
b. 0.6
c. 0.6493
Step-by-step explanation:
p(checking work email) = p(A) = 0.40
p(staying connected with cell phone) = p(B) = 0.30
p(having laptop) = p(c) = 0.35
p(checking work mail and staying connected with cell phone) = p(AnB) = 0.16
p(neither A,B or C) = p(AuBuC)
= 1-42.8%
= 0.572
p(A|C) = 88% = 0.88
p(C|B) = 70% = 0.7
a. What is the probability that a randomly selected traveler who checks work email also uses a cell phone to stay connected?
p(B|A) = p(AnB)/p(A)
= 0.16/0.4
= 0.4
b. What is the probability that someone who brings a laptop on vacation also uses a cell phone to stay connected?
p(B|C) = P(C|B)p(B)/p(C)
= 0.7x0.3/0.35
= 0.6
c. If the randomly selected traveler checked work email and brought a laptop, what is the probability that he/she uses a cell phone to stay connected?
p(A|BnC)
= P(BnAnC)/p(AnC)
= p(AnC) = p(A|C).p(C)
= 0.88x0.35
= 0.308
p(AnBnC) = p(AuBuC)-p(a)-p(b)+ p(AnB)+p(AnC)+p(BnC)
p(BnC) = 0.7x0.3
= 0.21
p(AnBnC) = 0.572-0.4-0.3-0.35+0.16+0.308+0.21
= 0.2
p(A|BnC) = 0.2/0.308
= 0.6493
Answer:
which ever one you want its an opinion answer.
Step-by-step explanation:
The length of a rectangle is shown below:
On a coordinate grid from negative 6 to positive 6 on the x-axis and on the y-axis, two points A and B are shown. The point A is on ordered pair 1, 2, and the point B is on ordered pair negative 2, 2. A straight line joins the points A and B.
If the area of the rectangle to be drawn is 12 square units, where should points C and D be located, if they lie vertically below the line that connects B and A, to make this rectangle? (5 points)
Group of answer choices
C(−2, −4), D(1, −4)
C(−2, −1), D(1, −1)
C(−2, −5), D(1, −5)
C(−2, −2), D(1, −2)
Answers
Answer:
b
Step-by-step explanation:
Review the graph. On a coordinate plane, a function starts at (negative StartFraction pi Over 2 EndFraction, negative 1), has an inflection point at (0, 0), and curves up to (StartFraction pi Over 2 EndFraction, 1). What is the inverse of the trigonometric function in the graph?
Answers
Answer:
A
Step-by-step explanation:
In ΔABC , angle C is a right angle.
Which statement must be true?
A.sin A = cos B
B.sin A = tan B
C.sin B = tan A
D.sin B = cos B
Answers
Answer: Choice A. sin(A) = cos(B)
============================================================
Explanation:
The rule is that sin(A) = cos(B) if and only if A+B = 90.
Note how
sin(A) = opposite/hypotenuse = BC/ABcos(B) = adjacent/hypotenuse = BC/ABSince both result in the same fraction BC/AB, this helps us see why sin(A) = cos(B). Similarly, we can find that cos(A) = sin(B).
In the diagram below, the angles A and B are complementary, meaning they add to 90 degrees. So this trick only applies to right triangles.
The side lengths can be anything you want, as long as you're dealing with a right triangle.
What is the remainder for 1,259/6?
Answers
Answer:
209 R 5
Step-by-step explanation:
Hope this helps
Answer: 209.833333333
Step-by-step explanation:
1259 6 = 209.833333333
209.833333333 = 2098.33333333 to the nearest tenth
209.833333333 = 209.83 to the nearest hundredth
209.833333333 = 209.833 to the nearest thousandth
= 0 to the nearest tenth
= 0 to the nearest hundredth
= 0 to the nearest thousandth
Other Divisions Math homework are
1259 divide by half plus 20
HWA: (1259/2) + 20 = 649.5
1259 divide by half plus 40
HWA: 1259/2) + 40 = 669.5
1259/6 divided by 2
Answer: (1259/6) ÷ 2 = 104.916666667
simplify the expression 5t + (3r+2r) + 3t +4r
Answers
Which linear inequality represents the graph below?
(0,4)
(2,4)
Answers
Answer:
c
Step-by-step explanation:
slope of red line=(-4-4)/(2-0)=-8/2=-4
eq. of red line is y-4=-4(x-0)
y=-4x+4
put x=0,y=0
0=0+4
which is true if 0<4
so y<-4x+4
The linear inequality represents the graph fr the coordinates (0,4), (2,-4) is y < -4x + 4.
What is linear inequality?Expressions with linear inequalities compare any two values using inequality symbols like "<", ">" , "≤" or "≥" These values could be either numerical, algebraic, or both.
Calculation for linear inequality shown by graph:
The coordinates of the straight line are (0,4), (2,-4).
Substitute the value in equation shown in option C.
y < -4x + 4
For points (0,4), put x = 0 and find y.
y < -4×0 + 4
y = 4 , which is satisfied.
Now consider points (2, -4)
Put x = 2 in the same equation and find y.
y < -4×2 + 4
y = -4 ( which again satisfies the given value for y)
Therefore, the equation y < -4x + 4 satisfies the points given for straight line.
To know, how to find equation of line for any point?, here
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Cynthia walk 9/100 Miles to school and 3/10 Miles friends house how many miles does Cynthia walk total
Answers
Answer:
12 Miles
Step-by-step explanation:
HELP PLEASE. DUE MIDNIGHT
Answers
Answer:
(-1, -5)
(0, 3)
(1, 11)
(2, 19)
(3, 27)
The numbers that are bolded are the answers for the empty boxes in the y row.
Step-by-step explanation:
To find the answer, just plug each number in the x row to the equation: y = 8x + 3
Example:
y = 8x + 3
8(-1) + 3
-8 + 3
y = -5
y = 8x + 3
8(0) + 3
0 + 3
y = 3
y = 8x + 3
8(1) + 3
8 + 3
y = 11
The dot plot shows a random sample of vertical leap heights in two different
basketball camps, Compare the mean values of the dot plota.
Click here to view the dol plot for Camp 1.
Click here to view the dot plot for Camp 2.
Compare the mean values of the dot plots.
Vertical Leap Samples
Camp
Mean
1 303 + 11
2
(Type an integer or decimal rounded to the nearest tenth as needed)
In which camp do the participants jump higher in general?
O Camp 2
O Camp 1
O Both camps are equal
Answers
Answer: 299/11=27.1
Step-by-step explanation:
PLZ HELP ME WITH THIS NEED THE ANSWER NOW PLSSSSSSSSS THIS IS 7TH GRADE AMTH
Answers
Answer:
Just by the looks at it P has the greater slope I think but graph it to make sure cause I might be wrong.
Answer:
Function 2
Step-by-step explanation:
The U.S. Senate has 100 members. After a certain election, there were 20 more Democrats than Republicans, with no other parties represented. How many members of each party were there in the Senate?
Answers
Then take 80/2=40
So you add 20+40=60
At the end you have 60 democrats and 40 republicans. And to be sure you can add 60+40=100.
Help me find the volume of the composite figure
Answers
Answer:
[tex]V = 97.911in^3[/tex]
Step-by-step explanation:
Given
Shapes: Cube and Cone
Required
Determine the volume
First we calculate the volume of the cube
[tex]V_1 = l^3[/tex]
Where
l = side length = 5.1
[tex]V_1 = 5.1^3[/tex]
[tex]V_1 = 132.651[/tex]
Next, calculate the volume of the cone using:
[tex]V_2 = \frac{\pi r^2h}{3}[/tex]
Where
h = 5.1
[tex]r = \frac{1}{2} * Diameter[/tex]
[tex]r = \frac{1}{2} * 5.1[/tex]
[tex]r = 2.55[/tex]
So, we have:
[tex]V_2 = \frac{\pi r^2h}{3}[/tex]
[tex]V_2 = \frac{\pi * 2.55^2 * 5.1}{3}[/tex]
[tex]V_2 = \frac{22 * 2.55^2 * 5.1}{7*3}[/tex]
[tex]V_2 = \frac{729.5805}{21}[/tex]
[tex]V_2 = 34.74[/tex]
The volume of the figure is:
[tex]V=V_1 - V_2[/tex]
[tex]V_1 = 132.651[/tex]
[tex]V = 132.651 - 34.74[/tex]
[tex]V = 97.911in^3[/tex]
True or False: If you are tossing three dice, ={2,3,4,5,6}
is an event in that sample space.
false
true
Answers
I think is true
Please let me know if it right
help me with this fast and explain it for brainiest :)
Answers
So i think it would be 1/2 (OR .5), or possibly 2 depending on what its asking.
Every number in X can be multiplied by 2 to receive y, or the numbers in y.
The linear equation would be x*2=y, making the linear function 2, UNLESS you want to take Y and DIVIDE it by 2, making it 1/2, linear equasion would be y*.5=x, or y/.5=2 OR y*1/2=x.
Hope this helps, I'm so sorry if its wrong, I'm not too good at linear functions, I'm pretty sure its 1/2.
If there are 5 apples and I take 2 away how many apples do I have?
Answers
Answer:
You will have 3 apples left because 5 - 2 = 3.
(Hope this helps! Btw, I am the first to answer. Brainliest pls! :D)
4x+25=57
valor de x por favor
Answers
Answer:
4x=8
Step-by-step explanation:
4x=32
32/4=8
Answer:
x=8
Step-by-step explanation:
4x+25=57
Subtract 25 from both sides:
4x+25-25=57-25
Simplify:
4x=32
Divide both sides by 4:
4x/4=32/4
Simplify:
x=8
Need help!!! Wil mary brainlyest!
Answers
Answer:
-17/5/11/10
=-17/5*10/11=-34/11=
[tex]3 \: \div1 \div 11[/tex]
Hope it helps
Answer:
Easy. The answer is -3 1/11
Step-by-step explanation:
-17/5/11/10
-170/55
-3 1/11
What is 4 1/3 + 4 3/4 simplest form?
Answers
Answer:
109/12
Step-by-step explanation:
4 1/3 = 13/3
4 3/4 = 19/4
13/3 = 52/12
4 3/4 = 57/12
52/12 + 57/12 = 109/12
109 and 12 have no common factors
What is the value of x?
Answers
Answer:
x=2
Step-by-step explanation:
so u have 7 as the whole length.
and 5 of the 7 is filled
so u do this 7-5=2
How do you solve the attached?
Answers
Answer:
it dont show
maybe try again
7-2 Practice Questions
Due 02/20/211
X 72PS-11
Question Help
Tamara finds the sum of two number cubes rolled at the same time. The chart below shows all
possible sums from the 36 possible combinations when rolling two number cubes. How many times
should Tamara expect the sum of the two cubes be equal to 9 if she rolls the two number cubes
216 times?
Click the icon to view the possible sums.
The sum should be equal to 9 about
time(s).
Enter your answer in the answer box and then click Check Answer
A parts showing
Clear Al
CAS
Review progress
Question
Back
Next →
O
Answers
Answer:
24
Step-by-step explanation:
There are 36 possible outcomes when rolling 2 dice. The sums range from 2 to 12. There are 4 ways of rolling a 9: 3, 6; 4, 5; 5, 4; 6, 3.
p(sum of 9) = 4/36 = 1/9
1/9 of the rolls are expected to have a sum of 9.
1/9 * 216 = 24
Which angle in Figure A'B'C'D' is equal to ZCDA?
O-ZD'A'B'
O ZA'B'C'
O ZB'C'D'
O ZC D'A'
Answers
Estimate if this angle is acute or obtuse.
Answers
Answer:
obtuse
Step-by-step explanation:
because they angle is over 90 degrees
The height of a tree when planted is 1.1 m.
One year later, the height of the tree is 2.4 m.
Calculate the percentage
increase in the height of the tree
over the year, correct to 1 d.p.
Answers
Answer:
118.2
Step-by-step explanation:
1.1m is 100%
2.4m×100=240
240/1.1= 218.(18)
218.(18)%-100%=118.(18)=118.2
Use the following figures to find the value of x.
(any help would be appreciated)
Answers
Answer:
x=9
Step-by-step explanation:
the two sides are equivalent so set equal to each other
x-6=1/3x
3x-18=x
3x-x=18
2x=18
x=9