Answer:
f=-2.75
Step-by-step explanation:
2(f-2)=3(2f+5)-8
2f-4=6f+15-8
2f-6f=7+4
-4f=11
f=-11÷4
=-11/4=-2/3/4=-2.75
Abdul drove 250 miles using 9 gallons of gas. At this rate, how many gallons of gas would he need to drive 275 miles?
the difference of a number and its absolute value.
Answer:
he sum of the first number and the square of the second number is 18. The difference between the square of the second number and twice the first number is 12.
I know the first set of equations would be x+y2=18 and y2−2x=12, and we can get x=2 and y=2 or y=−2.
My question is about how to understand difference when making equations. I know it means subtraction but would you ever use absolute values when making the equation?
For example, if I said the difference between a number x and 7 is 3, then wouldn't there be two answers? I would think of it as |x−7|=3 and then we could get two answers: x=10 and x=4. My rationale is that on the number line, the distance between either of my x values and 7 is 3.
In the quoted question I began with, then I could get the numbers of x=10 and y=22–√ or y=−22–√ but that's only if I did |y2−2x=12| and I don't feel that's right.
Step-by-step explanation:
Atul, Bryony and Charlotte share an amount of money in the ratio 4:11:10
What fraction of the money does Bryony get?
4 + 11 + 10 = 25.
Assuming Bryony is the middle number, she gets 11/25 fraction of the money.
plsss help urgent !
how much 14 do u need to make 100
Answer:
You cant
Step-by-step explanation:
To make 100, you cant have a solid number of 14's to make 100. The closest to 100 is 14 * 7.
What is the slope of the line represented by the equation y = 5x - 3?
ult
3
The slope of the line y = 5x - 3 is 5
Answer:
y= mx + b
and to my knowledge 5 would be your slope since m=5
1 pint=how many cups
Answer:
2
Step-by-step explanation:
.
A college college track coach compares the ratio of time it takes a runner to run
100 meters to 12 seconds. For a runner to be on the team, the ratio must be less
than or equal to 0.95. What is the slowest time 100 meters can be run to make
the team
Please help me with this
answer
is 13.21 because i did the promble on the calculatoor
Solve: 2/3-4x+7/2=-9x+5/6 X=-3/2 X=-2/3 X=2/3 X=3/2
Answer:
x=2/3
Step-by-step explanation:
2. On the graph below you will find two different triangles, and three points identified along the line.
(a) Identify the coordinates of Point A, B, & C? Explain.
(b) Does each triangle have the same change in x-values? Explain.
(c) Does each triangle have the same change in y-values? Explain.
(d) Does each triangle have the same ratio of change in y-values over change in x-values? Explain.
#a
Co-ordinates are
A(0,0)B(3,3)C(9,6)#b
No,Both triangles are congruent not same.
#c
No! Both triangles are not same#d
Yes ratio is same as they are congruent
Answer:
Question A:
A.) (0,0)
B.) (3,3)
C.) (9,6)
Question B:
No, both triangles are congruent, not the same change in x-values.
Question C:
No, both triangles do not have are not the same change in y-values.
Question D:
Yes, their ratios of change are the same.
Algebra 2 Piece-wise functions!!
It's A.
1. The closed circle connects to the x≥1 function, so that rules out B and C.
2. The x≥1 piece has a positive slope on the graph, so that rules out D.
what is (4x+1)(2x-1)
what is the standard form of of a line with a slope of -3/2 that passes through the point (4,-1)
Answer:
y=[tex]-\frac{3}{2}x-5[/tex]
Step-by-step explanation:
Use the point slope formula
[tex]y-y_1=m(x-x_1)[/tex]
y-1=[tex]-\frac{3}{2}[/tex](x-4)
Multiply -3/2 by (x-4) which equals -3/2x-6
Move the 1 by adding to both sides
The gives us y=[tex]-\frac{3}{2}x-5[/tex]
Write an equation
Look at screenshot
Answer:
y=3x+27
Step-by-step explanation:
I first wrote down point-slope form, then substituted your point (-7,6) and the slope to get b (the y intercept).
could someone name some games that are unblocked that I can play on a school computer?
lol 50 pts to answer
Answer:
Agar.io
Buildroyale.io
Gats.io
Krunker.io
Narwhale.io
1v1.lol
1v1.fail
Or look up your favorite computer games but put (Gooogle Sites) at the end
Step-by-step explanation:
Classify the following triangle. Check all that apply
Answer:
A. Acute and B. Equilateral
Step-by-step explanation:
I need help! Please tell me which one is true and which one is not!
Answer:
yes yes no yes
Step-by-step explanation:
What is the constant of proportionality for the relationship between 12 laps 1/2 hr
Answer:
24
Step-by-step explanation:
12 per half hour means 24 per hour
PLEASE HELP RN AQAP
THANKS!
Answer:
8^3 x 12^3
Step-by-step explanation:
What is the equation of a line through point (-12,20) that is perpendicular to the line
with equation y=-6x + 4?
Find the slope of the perpendicular line
When two lines are perpendicular, the product of their slopes is -1. This means that the slopes are negative-reciprocals of each other.
⇒ if the slope of one of the lines = - 6
then the slope of the perpendicular line (m) = ¹/₆
Determine the equation
We can now use the point-slope form (y - y₁) = m(x - x₁)) to write the equation for this line:
⇒ y - 20 = ¹/₆ (x - (-12))
∴ y - 20 = ¹/₆ (x + 12)
We can also write the equation in the slope-intercept form (y=mx+c) like the equation in the question by making y the subject of the equation and expanding the bracket to simplify:
since y - 20 = ¹/₆ (x + 12)
y - 20 = ¹/₆x + 2
y = ¹/₆x + 22
∴ the slope-intercept equation of the perpendicular line is y = ¹/₆ x + 22.
To test my answer, I have included a Desmos Graph that I graphed using the information provided in the question and my answer.
it has no picture just these
Answer:
angle OPN, angle PON, angle NOP, angle PNO
Step-by-step explanation:
Essentially, this simply asks what angles contain the line OP. If we draw the triagnle NOP (in that order starting at the top), we can see that all these angles include the line OP within their angles.
(note: Im not sure if it is asking for the line OP in that order. If so, it would only be angles 1 and 3, as those have OP in that order)
if 1/3 of taffy cost $2.10 how much is one pound of taffy?
Answer:
$6.30
Step-by-step explanation:
since 1/3 is considered 1/3 of a pound, you can multiply 2.10 by 3.
2.10 x 3 = 6.30
Answer:
$6.30
Step-by-step explanation:
3 × 2.10 = 6.30
You know you got the question right if you divide 6.30 by 3 because it's 1/3
–112.84 – 54.14 – (–29.18)
Answer:
-137.8
Step-by-step explanation:
3. Which ordered pair is a solution of the equation y = x - 4? (1 point)
O (2,6)
O (6,2)
O(-2, 6)
O(-6, 2)
Answer:
Question 3: (6,2)
Question 4: (-1,-4)
Step-by-step explanation:
Look above to see each graphed⤴⤴⤴
Hope this helped :)
Brian painted 2/3 of a fence in 3/4 of a day. How long will it take him to paint the entire fence?
Answer:
9/8 days
Step-by-step explanation:
If it takes him 3/4 of a day to paint 2/3 of a fence, it would take him 9/8 days to paint the whole fence ((3/4)/(2/3)).
You can think of it like this:
It would take 3/8 of a day to paint 1/3 of a fence. So to find how long it takes to paint the whole fence, multiply 3/8 by 3.
Which of the following is an example of a quadratic equation?
O A. x^2 = 25
O B. y =1/x2
O C. y = 3x +2
O D. X-4 = 7
Answer:
A.
Step-by-step explanation:
Because it is a polynomial with highest degree of x = 2.
can someone give me a full explanation on how to do this? thank you have a great day !
Answer:
Exact area = 1800 - 450pi square cm
Approximate area = 387 square cm
I used 3.14 for pi to get the approximate value.
============================================================
Explanation:
Check out the diagram below.
As the diagram shows, the largest radius possible is half of the shortest dimension of this rectangle. So the radius of each identical circle is 30/2 = 15 cm. The radius cannot exceed this value, or else the circle will spill outside the rectangle.
The area of one circle would be
A = pi*r^2
A = pi*15^2
A = pi*225
A = 225pi
Two identical circles like this combine to a total area of 2A = 2*225pi = 450pi square cm.
The area of the brown shaded region in the figure, aka the amount of cardboard leftover, is exactly 1800 - 450pi. The 1800 is from the computation of 60*30 = 1800, which is the area of the original rectangle before we made any cuts.
If we wanted to find the approximate area, then we could use pi = 3.14 to get
1800 - 450pi = 1800 - 450*3.14 = 387
The approximate area remaining is 387 square cm. This value is approximate because pi = 3.14 is approximate. If you were to use more decimal digits of pi, then you'd get some other approximate area.
Mason is running a lemonade stand. He sells each cup of lemonade for $2.50,and he spent $15 on the
supplies to set up his stand, Write an equation to represent the amount of money mason has after he has sold x cups of lemonade.
Step-by-step explanation:
He is making $2.50x (x = amount of drinks sold)
Than we subtract the amount of money he lost - $15
$2.50x - $15
Hope this helps.
drake is making capes he used 1/3 yard of fabric for each cape he makes what is the total amount of fabric drake needs to make 96 capes FOR 100