Which of the following is the inverse of f(x)=4/3x+5?
1. f(x)=3/4x +5
2.f(x)=3x+5/4
3.f(x)=4x-20/3
4.f(x)=3x-15/4
Answer:
f(x)= 3x-15/4
Step-by-step explanation:
The answer is D; I got it right on the test.
Last year, the seventh-grade enrollment at Main Middle School was 612 students. This year, the enrollment dropped to 489 students due to the opening of a new middle school. Which best reflects the percent change in enrollment at Main Middle School from last year to this year?
Answer:
The percent change in enrollment at Main Middle School was about 20%
Step-by-step explanation:
Percentages
There was a change of enrollments in the 7th grade at Main Middle School from 612 to 489 due to openings of a new school.
The change in the number of enrollments was 612 - 489 = 123.
To express it as a percentage, we divide by the original number and then multiply by 100:
[tex]\displaystyle \mathrm{Change} \% = \frac{123 }{ 612} * 100 \approx 0.2[/tex]
The percent change in enrollment at Main Middle School was about 20%
Eric says that a three-dimensional figure with the views shown must be a rectangular prism.
The top view is 8 cubes and the side view is 4 cubes.
Is Eric correct? Explain.
Answer:
No, Eric is not correct. Other figures could have those views. We also do not have the front view, which could add more information. More views are required to be sure of the shape of the object.
Step-by-step explanation:
Answer:
eric is correct
Step-by-step explanation:
If m<1 = 38 then m<4 =
Answer:
If m<1 = 38 then m<4 = 38
Step-by-step explanation:
Both of the angles equal 38 degrees. This is true because the angles are vertical, vertical angles are angles opposite each other where two lines cross. Vertical angles are also always congruent, therefore the m<4=38.
PLS HELP!!
Which coordinate grid shows Point A at (-0.25, 1.75)?
Answer:
Need pic
Step-by-step explanation:
Eastridge High School’s Student Government Association is holding a raffle to raise money for a local food pantry. They have spent $17 on supplies and plan to sell tickets for $5 each.
_
Interpret the rate of change and the y-intercept (please :D)
"Interpret the rate of change and the y-intercept.
"
Rate of change is 5. Each ticket costs 5$.
Y-intercept is (0,-17). They spent $17 on supplies before they sold tickets.
(Sorry, you probably already know the answer)
Which number below is greater than 9 but less than 10?
Answer choices
A: 45
B: 80
C: 100
D: 85
estimate the answer of $3.67 and $2.40 to the nearest ones place
Answer:
$3.67 rounds up to $4
$2.40 rounds down to $2
Step-by-step explanation:
The cost of filling up Jason's car is directly proportional to the number of gallons purchased. It if costs Jason $32.40 to purchase 15 gallons of gas, find the cost of purchasing 20 gallons of gas.
Answer:
$43.2
Step-by-step explanation:
32.4÷15=2.16
2.16×20=43.2
The cost of purchasing 20 gallons of gas will be $43.2.
What is Proportional?Any relationship that is always in the same ratio and quantity which vary directly with each other is called the proportional.
Given that;
The costs Jason $32.40 to purchase 15 gallons of gas.
Now,
Let the cost of purchasing 20 gallons of gas = x
Since, The costs Jason $32.40 to purchase 15 gallons of gas.
So, By definition of proportion we get;
⇒ $32.40/15 = x / 20
⇒ 32.40 × 20 / 15 = x
⇒ x = $43.2
Thus, The cost of purchasing 20 gallons of gas = $43.2
Learn more about the proportion visit:
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PLZ I NEED HELP I HAVE 15 MIN LEFT I WILL GIVE BIG BRAINLYEST TO WHOEVER ANSWERS FIRST AND RIGHT
The least common multiple of the two numbers is 36. Which could be the two numbers?
9 and 12
4 and 6
3 and 8
3 and 12
Answer:
4 and 6
Step-by-step explanation:
The points in the table lie on a line. Find the slope of the line.
Х
1
3
5
7
y
2
10
18
26
The slope of the linelis
21
If the given points in the table lie on a line, then the slope of a line is, 4
What is slope?Slope is a ratio of change in y-coordinate w.r.t. change in x-coordinate. The net change in y coordinate is written as, Δy and the net change in x coordinate is written as, Δx.
So formula for the slope is,
m = change in y coordinate/change in x coordinate = Δy/Δx
Given that,
Coordinates of a point through which line is passing,
X: 1 3 5 7
Y: 2 10 18 26
The slope of a line = ?
The slope of a line can be calculated by finding the rise (difference in the y-values) over the run (difference in the x-values) between two points on the line.
Now, Using the first and last points in the table:
First point- (1, 2)
Second Point- (7, 26)
Slope = (y₂ - y₁)/(x₂ - x₁)
Slope = (26 - 2) / (7 - 1)
= 24 / 6
= 4
The slope of the line is 4.
To know more about slope check:
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Please Do!!! IN A HURRY!
will name the BRAINLIEST!!!
Answer:
HURRY
Step-by-step explanation:
Um.....Brainliest to first! Make sure your right and please answer fast. 10 points
Answer:
D
Step-by-step explanation:
(Isosceles Triangle)
7x +3
5x + 7
С
10
==[blank1]
Answer:
7x + 3 = 5x + 7
2x + 3 = 7
2x = 4
x = 2
Can you help me please (get brainliest)
9514 1404 393
Answer:
4/25
Step-by-step explanation:
Put the numbers where the letters are and do the arithmetic.
[tex]\left(2\cdot\dfrac{-1}{2}\cdot\dfrac{2}{5}\right)^2=\left(\dfrac{-2}{5}\right)^2=\dfrac{(-2)^2}{5^2}=\boxed{\dfrac{4}{25}}[/tex]
MATH HELP PLZZ! MARKING BRAINLIST!!!!! ASAP!!!!!!!!!!!
Answer:
No solution
Step-by-step explanation:
Brain-list?
Answer:
B no solution
Step-by-step explanation:
THIS IS 10 PTS. help plz
Answer:
the third answer
Step-by-step explanation:
hope this helped :-)
Find the slope of the line. Use the "/" to make a fraction if needed. Reduce your answer.
Answer:
[tex]-\frac{1}{2}[/tex]
Step-by-step explanation:
This line goes down 1 unit and right 2 units.
Tyler has a bag that contains orange chews, cherry chews, and peach chews. He performs an experiment. Tyler randomly removes a chew from the bag, records the result, and returns the chew to the bag. Tyler performs the experiment 38 times. The results are shown below:
A orange chew was selected 28 times.
A cherry chew was selected 7 times.
A peach chew was selected 3 times.
Based on these results, express the probability that the next chew Tyler removes from the bag will be peach chew as a percent to the nearest whole number.
Answer:
8%
Step-by-step explanation:
Mathematically, the probability of an event can be obtained by dividing the expected number in which event will turn up divided by the total number we have in the sample space
From the question, the total number of times in which the experiment is performed is 38 times
The number of times we have the peach chew selected is 3 times
So the probability that the next removal will be a peach chew will be;
3/38 = 0.079
This as a percent is 7.9%
To the nearest whole number, this figure is 8%
Select the option that does NOT mean VERTICAL.
Of or relating to vertigo, often experiencing dizziness
At right angles to the
horizontal plane
In the up and down direction
Rising straight upward
Answer:
Of or relating to vertigo, often experiencing dizziness
Explanation:
Verticle describes something that rises straight up from a horizontal line or plane. For more information take a look at the picture below.
Have a beautiful day! v(⌒o⌒)v♪
something 8 guess Im just saying stuff haahaa
Solve by using the quadratic formula: Simplify
Answer:
-6 - square root 31, -6 + square root 31
Answer:
x = [tex]\frac{48 - \sqrt{1984} }{-8}[/tex]
x = [tex]\frac{48 + \sqrt{1984} }{-8}[/tex]
Step-by-step explanation:
-4[tex]x^{2}[/tex] - 48x - 20 = 0
Remember, the quadratic formula is:
x = [tex]\frac{-b +- \sqrt{b^{2} -4ac } }{2a}[/tex]
A quardatic equation in standard form is;
a[tex]x^{2}[/tex] + bx + c
Substitute in the values and solve;
[tex]\frac{48 +- \sqrt{(-48)^2 - 4 * (-4) * (-20)} }{2*(-4)}[/tex]
Simplify;
[tex]\frac{48 +-\sqrt{2304 -320} }{-8}[/tex]
x = [tex]\frac{48 +- \sqrt{1984} }{-8}[/tex]
x = [tex]\frac{48 - \sqrt{1984} }{-8}[/tex]
x = [tex]\frac{48 + \sqrt{1984} }{-8}[/tex]
HELP NOW PLSSSS!!!!!
An airplane descended 345 m in 10 seconds. What was the airplane’s rate of change in elevation? Show your work and don’t forget the unit!
Answer:
The airplane’s rate of change in elevation is 34.5 m/s.
Step-by-step explanation:
Given that,
An airplane descended 345 m in 10 seconds.
We need to find the airplane’s rate of change in elevation. Let the rate is R. Its rate is equal to the distance divided by time. So,
[tex]R=\text{velocity}=\dfrac{345\ m}{10\ s}\\\\=34.5\ m/s[/tex]
So, the airplane’s rate of change in elevation is 34.5 m/s.
Please help is -6 or 5 or 10 or 30 PLEASE HELP or ima gonna fail
Answer:
x = 10 :)
Step-by-step explanation:
4/3 = x+10/15
x = 10
Simplifying Expressions
3. Which of the following expressions is the simplified form of the expression below?
(x^3+2x^2+5) - (8x^2 - 4x + 6)
A. 10x -11
B. 9x^3-- 2x^2 +11
C. 7x^2 - 2x^2 -1
D. x^3-6x^2+ 4x - 1
Answer:
As
[tex]\left(x^3+2x^2+5\right)-\left(8x^2-4x+6\right)=x^3-6x^2+4x-1[/tex]
Therefore, option D is the correct answer is.
Step-by-step explanation:
Given the expression
[tex]\left(x^3+2x^2+5\right)\:-\:\left(8x^2\:-\:4x\:+\:6\right)[/tex]
solving to simplify the expression
[tex]\left(x^3+2x^2+5\right)\:-\:\left(8x^2\:-\:4x\:+\:6\right)[/tex]
[tex]=x^3+2x^2+5-\left(8x^2-4x+6\right)[/tex] ∵ [tex]\mathrm{Remove\:parentheses}:\quad \left(a\right)=a[/tex]
[tex]=x^3+2x^2+5-\left(8x^2-4x+6\right)[/tex]
[tex]=x^3+2x^2+5-8x^2+4x-6[/tex]
Group like terms
[tex]=x^3+2x^2-8x^2+4x+5-6[/tex]
[tex]\mathrm{Add\:similar\:elements:}\:2x^2-8x^2=-6x^2[/tex]
[tex]=x^3-6x^2+4x+5-6[/tex]
[tex]\mathrm{Add/Subtract\:the\:numbers:}\:5-6=-1[/tex]
[tex]=x^3-6x^2+4x-1[/tex]
Therefore, the simplified form of the expression is
[tex]\left(x^3+2x^2+5\right)-\left(8x^2-4x+6\right)=x^3-6x^2+4x-1[/tex]
Therefore, option D is the correct answer is.
Priva has so identical parcels
Each parcel has a mass of 17 kg correct to the nearest kilogram
Find the upper bound for the total mass of the 50 parcels
Krista has a garden that is 5 yards by
23 yards and wants to cover it with
compost. The compost is sold in bags
that cover 5, 15, or 30 square yards.
Which size bag should Krista buy?
A 5 square yards
B 15 square yards
C 30 square yards
What is the sign of 123\dfrac{1}{23} + \left(-123\dfrac{1}{23}\right)123 23 1 +(−123 23 1 )123, start fraction, 1, divided by, 23, end fraction, plus, left parenthesis, minus, 123, start fraction, 1, divided by, 23, end fraction, right parenthesis? Choose 1 answer: Choose 1 answer: (Choice A) A Positive (Choice B) B Negative (Choice C) C Neither positive nor negative—the sum is zero.
Answer:
C Neither positive nor negative—the sum is zero.
Step-by-step explanation:
Given the expression
(1/23)+(-1/23)
Required
The sign of the resulting expression
Note that the product of a minus and a plus sign is minus sign i.e (-×- = +)
The equation becomes;
= 1/23 - 1/23
= 0/23
= 0
Hence the resulting value is neither positive nor negative since the sum is zero
Answer:
b- negative
Step-by-step explanation:
did it on khan it gave me the answer of B
Over 12 months, the value of Mrs. Marino's stocks dropped
a total of $36, or -$36. What integer value represents the
average monthly change in the value of her stocks ??
Write an algebraic expression that you can use to determine the total cost of buying a watermelon that weighs w pounds and some tomatoes that weigh t pounds. Watermelons are on sale for $0.68 per lb and tomatoes are $3.25 per lb. (Do not enter dollar signs or spaces in your expression.)
Answer:
C = 0.68w + 3.25t
C is total cost
Step-by-step explanation:
someone help 6th grade math i will give brainliest
Answer:
240 should be the answer
Step-by-step explanation:
80% of 300 is 240
Answer:
The correct answer would be 240. If you start at 10 percent which already gives you 30 then continue to go up. Move on by 10 percent until you get to 80 percent which is the amount of televisions that are high definition. Once you count by 10 percent with 30 everyitme you will lead to the answer of 240.
Step-by-step explanation:
Just count by 30’s eight times and you get your answer which I supplied above. I hope this helps.
-Vizion