Look at the graph. On a coordinate plane, a line with negative slope goes through points (0, 2) and (4, 0). To find the rate of change of the function, Kevin did the following: StartFraction 0 minus (negative 1) Over 2 minus 2.5 EndFraction = StartFraction 1 Over negative 0.5 EndFraction = negative 2. What was Kevin’s mistake? He incorrectly chose (–1, 2.5) as a point on the graph. He incorrectly chose (0, 2) as a point on the graph. He mixed up the numerator and the denominator of the fraction. He subtracted –1 from 0 when he should have added –1 to 0.
Answers
Answer:
the answer is c i did the test again and got it right
Step-by-step explanation:
He mixed up the numerator and the denominator of the fraction which is the correct answer would be an option (C)
What is the slope of the line?The slope of the line is defined as the angle of the line. It is denoted by m
Slope m = (y₂ - y₁)/(x₂ -x₁ )
Consider two points on a line—Point 1 and Point 2. Point 1 has coordinates (x₁,y₁) and Point 2 has coordinates (x₂, y₂)
On a coordinate plane, a line with a negative slope goes through points (0, 2) and (4, 0).
To determine the rate of change of the function,
He incorrectly selected the graph's point at (-1, 2.5).
Given that the graph passes through, Kelvin did not make this error (–1, 2.5)
He picked the wrong spot on the graph, (0, 2).
Given that the graph passes through, Kelvin did not make this error (0, 2)
We have that Kevin’s mistake is
He messed up the fraction's denominator and numerator.
He should have added -1 to 0 instead of subtracting it, which he did.
He cannot make a mistake here because the two are identical.
Hence, He mixed up the numerator and the denominator of the fraction which is the correct answer would be an option (C)
Learn more about Slope of Line here:
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Related Questions
Solve b – 3/16 =5/16
b= __
Answers
Answer: 0.5
Step-by-step explanation:
Add 3/16 to both sides to isolate the variable on one side. Then the equation should be x=8/16 which is 0.5.
write 3 × 20 sec=t as a word problem
Answers
Answer:
If you had a three person relay race and you all took 20 seconds each, how long did your race last? hope this will help :)
if |x|=6 then x=-6 true or false
Answers
Answer:
false because it could be 6
Step-by-step explanation:
write the point-slope equation of the line that contains the point (1, -4) and has slope - 1/3.
Answers
Answer:
work shown and pictured
7 billion expressed in scientific notation
Answers
a cube measuring 1 cm on each side, what is the volume, if the cube was dropped into 28ml of water. what would the new volume be?
Answers
Answer:
29 ml
Step-by-step explanation:
Vcube = 1cm×1cm×1cm = 1 cm³
1 cm³ = 1 ml
If this cube is dropped into a 28ml of water the new reading will be 29 ml.
hope this helped :)
When analyzing three linear functions, Michele noticed that they all intersected at the point (5, 3). What conclusion can Michele come to about the linear function with the smallest slope?
Answers
Answer:
The linear function with the smallest slope must be multiple of one of the other two linear functions if all functions are coplanar. Otherwise, they intersect at the given point in space.
Step-by-step explanation:
A system of two linear functions with two variables have an unique solution on a given plane, as there are three linear function, it means that linear function with the smallest slope must be multiple of one of the other two linear functions.
But, if those functions are not all coplanar and have 3 variables, they intersect at the given point.
What is the product?
5
-2
-6
2
Answers
Answer:
-3
4
Step-by-step explanation:
We do across times down
5*-1 + -2 *-1 = -5+2 = -3
-6 *-1 + 2 * -1 = 6 -2 = 4
2x + 9x2 + 4x + 4xy – 6x2
Answers
Simplified would be 4xy + 3x^2 + 6x
Answer:
4xy+3x²+6x
Step-by-step explanation:
how many 2/3 cups can go into 9 cups
Answers
Hello there! :D
Today we're gonna learn some math, whoopie!
Alright, so we want to know how many 2/3 cups can go into 9 cups!
Firstly, I want to turn 9 cups into a fraction with the denominator of 3.
Let me do it all fancy for you:
[tex]9=\frac{x}{3}[/tex]
We know we want the denominator to be three, now we just need to do the opposite action (multiplication) to the other side to find what "x" is!
[tex]9*3= \frac{x}{3}*3[/tex]
If you have trouble understanding that step, let me know!
[tex]x=27[/tex]
Enter that into the fraction and we have:
[tex]\frac{27}{3}[/tex]
Notice that 27 is not an even number!
Now, we can the numerator of 27/3s and divide it by the numerator of 2/3s.
[tex]27/2=13.5[/tex]
This is not a whole answer, but the question is asking how many 2/3 cups can go into nine cups. Half of a 2/3 cup does not equal a 2/3 cup, so the answer would be 13 cups.
I hope this helps you can you have a wonderful day,
Kai xx
The number of 2/3 cups that can go into 9 cups is [tex]13\frac{1}{2}[/tex]
Total number of cups = 9
The number of 2/3 cups we can get from 9 cups = x
To get the number of 2/3 cups in 9 cups, we will divide 9 by 2/3
Number of 2/3 cups in 9 cups = 9 ÷ 2/3
Number of cups in 9 cups = 9 x 3/2
x = 27/2
x = 13.5
The number of 2/3 cups that can go into 9 cups is [tex]13\frac{1}{2}[/tex]
Learn more here: https://brainly.com/question/17332735
If f(x) = 2x+7 and g(x) = -3x+5, what is f(g(1))?
Answers
Answer:
[tex]f(g(1))=11[/tex]
Step-by-step explanation:
So we have the two functions:
[tex]f(x)=2x+7\text{ and } g(x)=-3x+5[/tex]
And we want to find f(g(1)).
So, let's find g(1) first:
[tex]g(x)=-3x+5[/tex]
Substitute 1 for x:
[tex]g(1)=-3(1)+5[/tex]
Simplify:
[tex]g(1)=-3+5[/tex]
Add:
[tex]g(1)=2[/tex]
So:
[tex]f(g(1))=f(2)[/tex]
Now, substitute 2 for x in f(x):
[tex]f(x)=2x+7\\f(2)=2(2)+7[/tex]
Multiply:
[tex]f(2)=4+7[/tex]
Add:
[tex]f(2)=11[/tex]
So:
[tex]f(g(1))=11[/tex]
p2-16p+48=0 Please solve this math problem
Answers
Answer:
( p - 4 ) ( p - 12 ) = 0
Step-by-step explanation:
To factor this equation, let's apply the quadratic formula.
p^2 - 16p + 48 = 0
Let a = 1, b = -16, c = 48
[-b +/- sqrt(b^2 - 4(a)(c))] / 2 (a)
[- (-16) +/- sqrt( (-16)^2 - 4(1)(48)) ] / 2 (1)
= [ 16 +/- sqrt( 256 - 192) ] / 2
= [ 16 +/- sqrt(64) ] / 2
= [16 +/- 8] / 2
p = (16 + 8) / 2 ; p = (16 - 8) / 2
p = 24 / 2 ; p = 8 / 2
p = 12 ; p = 4
Hence, this equation factors into the following:
( p - 4 ) ( p - 12 ) = 0
Cheers.
Write 8.87 as a mixed number and as an improper fraction.
Do not try to simplify your answers.
Answers
Answer:
8 87/100 = 887/100
Step-by-step explanation:
"Eight and eighty-seven hundredths" is ...
8 87/100 = 887/100
Answer:
Step-by-step explanation:
Convert to a fraction by placing the decimal number over a power of
10
.
887
100
solve the product of : 0.017 and 10
(( TYPE the STEPS you used to set up the problem and type your steps to solve. )) THANK YOU!!
Answers
The product of any two numbers is the result of multiplying them
You can use pencil and paper to get the job done, or use a calculator.
A shortcut is to simply move the decimal over 1 spot to the right.
This is because multiplying 0.017 and 10 is the same as 0.017*10^1, where the exponent of positive 1 means "move decimal point 1 spot to the right". This only works if you multiply by powers of 10.
Answer: 0.17What’s the value of g(9)?
Answers
Answer:
-12
Step-by-step explanation:
Since we want to find g(9), we will use the function g(x):
[tex]g(x)=-2x+6[/tex]
Substitute:
[tex]g(9)=-2(9)+6[/tex]
Multiply:
[tex]g(9)=-18+6[/tex]
Add:
[tex]g(9)=-12[/tex]
So, our answer is -12 :)
EASY— get marked brainliest!!!
Answers
Answer:
y≥1/2 x +1
Step-by-step explanation:
first the line in the graph is bold and not dotted
so the sign is either ≤ or≥
the shaded area is on the top , on this case it is greater than
the right answer is y≥1/2 x +1
The International Business Club starts the school year with $250.50 in their account. They spend $35 each month on activities. The Future Agricultural Leaders Club starts with $300 and spends $45.25 each month. Which equation can be used to find m, the number of months it will take for both accounts to have the same amount of money? 250.5 + 35m = 300 + 45.25m 250.5 – 35m = 300 – 45.25m 250.5m – 35 = 300m – 45.25 250.5m + 35 = 300m + 45.25
Answers
Answer:
250.50 - 35m = 300 - 45.25m
Step-by-step explanation:
Whenever an equation asks for when it will take x (or m in this case) amount of things or time you should know that there will be 2 different equations that have to equal each other
The equation will be 250.50 - 35m = 300 - 45.25m
The 35m is being subtracted from 250.50 because they are losing money each time they spend. This also applies to 45.25m
Also 35m and 45.25m are variables because it says they spend that much money each month. They don't specify how many months, so we have to put a variable after it.
Answer:
b) 250.5 – 35m = 300 – 45.25m
Step-by-step explanation:
on edge 2020 || pls mark brainliest
Marta has 1 cubic yard of sand to build a wall in the shape of a rectangular prisim that is 10 inches tall and 5 inches wide to the nearest foor what will be the length of the wall
Answers
Answer: 933.12 inches
Step-by-step explanation:
Givem that Marta has 1 cubic yard of sand to build a wall in the shape of a rectangular prisim that is 10 inches tall and 5 inches wide to the nearest foor
1 cubic yard = 46656 cubic inches
Volume = Length × width × height
Substitute all the parameters
46656 = 10 × 5 × height
46656 = 50 height
Height = 46656 / 50
Height = 933.12 inches
1+x^2-3+2y+7x^2+3+3y
Answers
Answer:
8x^2+5y+1
Step-by-step explanation:
1+x^2-3+2y+7x^2+3+3y
Combine like terms
x^2+7x^2+2y+3y+3+1-3
8x^2+5y+1
Answer:
8x^2 + 5y + 1
Step-by-step explanation:
1 + x^2 - 3 + 2y + 7x^2 + 3 + 3y
group like terms
= x^2 + 7x^2 + 2y + 3y + 1 - 3 + 3
add similar items
= 8x^2 + 2y + 3y + 1 - 3 + 3
add similar items
= 8x^2 + 5y + 1 - 3 + 3
= 8x^2 + 5y + 1
a cylinder is a radius of 8cm and a volume of 800cm³ calculate it's height and total surface area
Answers
Answer:
3.98 cm, 602.18 cm²
Step-by-step explanation:
Given:
r= 8 cmV= 800 cm³To find:
h = ?S = ?Solution:
V = πr²hh = V/πr² = 800/(π8²) = 3.98 cmS = 2πr (r+h) = 16π(8+3.98) = 602.18 cm²simplify the following expression.
[tex]14 - 24 \div 8 + 3 \times {4}^{2} [/tex]
Answers
Step 2: evaluate the power: 14-3+3*16
Step 3: multiply: 14-3+48
Step 4: add and subtract: 59
Answer:59
Many cereals are made with high moisture content so that the cereal can be formed into various shapes before it is dried. A cereal product containing 57% by mass is produced at the rate of 1000. kg/h. How much water must be evaporated per hour if the final product contains only 21% water
Answers
Answer:
278.482 kilograms of water must be evaporated each hour.
Step-by-step explanation:
Initial mass of cereal is equal to the product of cereal mass-to-mass ratio and total mass flow:
[tex]\dot m_{in,c} = r_{in,c}\cdot \dot m_{in}[/tex]
Where:
[tex]\dot m_{in,c}[/tex] - Inlet cereal mass flow, measured in kilograms per hour.
[tex]r_{in,c}[/tex] - Inlet cereal mass ration, dimensionless.
[tex]\dot m_{in}[/tex] - Cereal product mass flow, measured in kilograms per hour.
If [tex]r_{in,c} = 0.57[/tex] and [tex]\dot m_{in} = 1000\,\frac{kg}{h}[/tex], then:
[tex]\dot m_{in,c} = (0.57)\cdot \left(1000\,\frac{kg}{h} \right)[/tex]
[tex]\dot m_{in,c} = 570\,\frac{kg}{h}[/tex]
The initial mass flow of water is:
[tex]\dot m_{in,w} = \dot m_{in} - \dot m_{in, c}[/tex]
[tex]\dot m_{in,w} = 1000\,\frac{kg}{h}-570\,\frac{kg}{h}[/tex]
[tex]\dot m_{in,w} = 430\,\frac{kg}{h}[/tex]
Given that final total mass flow contains only 21 % water, the final water mass flow, measured in kilograms per hour, is:
[tex]\dot m_{out} = \frac{\dot m_{out, c}}{r_{out, c}}[/tex]
([tex]\dot m _{out, c} = 570\,\frac{kg}{h}[/tex], [tex]r_{out} = 0.79[/tex])
[tex]\dot m_{out} = \frac{570\,\frac{kg}{h} }{0.79}[/tex]
[tex]\dot m_{out} =721.518\,\frac{kg}{h}[/tex]
[tex]\dot m_{out,w} = \dot m_{out} - \dot m_{out, c}[/tex]
[tex]\dot m_{out,w} = 721.518\,\frac{kg}{h}-570\,\frac{kg}{h}[/tex]
[tex]\dot m_{out,w} = 151.518\,\frac{kg}{h}[/tex]
Finally, the amount of water that must be evaporated per hour is:
[tex]\dot m_{evap} = \dot m_{in,w}-\dot m_{out,w}[/tex]
[tex]\dot m_{evap} = 430\,\frac{kg}{h} - 151.518\,\frac{kg}{h}[/tex]
[tex]\dot m_{evap} = 278.482\,\frac{kg}{h}[/tex]
278.482 kilograms of water must be evaporated each hour.
What would be the first step you would take in simplifying 6 - 3+ 5 x 2 ?
Answers
Answer:
Multiply ; (5 ×2)
Step-by-step explanation:
Further explanation
[tex]6-3+5\cdot \:2\\\\\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations}\\\\\mathrm{Multiply\:and\:divide\:\left(left\:to\:right\right)}\:5\cdot \:2\::\quad 10\\=6-3+10\\\\\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:6-3+10\:\\:\quad 13[/tex]
A cone and cylinder have the same height and their bases are congruent circles. If the volume of the cylinder is 120 cubic inches, what is the volume of the cone?
Answers
Answer:
Volume of cone = 40 in³
Step-by-step explanation:
Given:
Volume of cylinder = 120 in³
Height of cylinder = Height of cone
Radius of cylinder = Radius of cone
Find:
Volume of cone
Computation:
Volume of cylinder = πr²h = 120 in³
Volume of cone = (1/3)πr²h
So,
Volume of cone = (1/3)(120)
Volume of cone = 40 in³
The question is in the photo.
Answers
Answer:
Question 2 because the point up is -6 and to the right is 2
Step-by-step explanation:
What is another word for evaluate?
Answers
Answer:
another word for evaluate is solve
Answer:
Evaluate --> find a numerical expression or equivalent for (an equation, formula, or function).
Also evaluate means checking ( for a teacher )
In the diagram below, ZDAB and ZDAC are adjacent
angles.
Answers
Complete Question: In the diagram below, <DAB and <DAC are adjacent angles. If m<DAC = 25°, what is m<DAB in degrees? What is m<BAC in degrees?
Answer:
m<DAB = 80°
m<BAC = 105°
Step-by-step explanation:
Generate an equation that will help you find the value of x.
Since m<DAC = 25°, therefore, x - 20 = 25°
Use this equation to find x
x - 20 = 25
Add 20 to both sides of the equation
x - 20 + 20 = 25 + 20
x = 45
m<DAB = 2x - 10
Plug in the value of x
m<DAB = 2(45) - 10 = 90 - 10 = 80°
m<BAC = m<DAC + m<DAB
m<BAC = 25 + 80 = 105°
-3(-7) I need this asap pls help me
Answers
[tex]\boxed{21}[/tex]
When you multiply a negative and a negative, it is going to be a positive number. In this case, we're multiplying -3 and -7, which is equal to 21. If you're not sure of the answer for multiplication problems like this, just use a calculator to check your work.
Hi there! Hopefully this helps!
-------------------------------------------------------------------------------------------------
Answer: [tex]\boxed{21}[/tex]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~When you multiply two negatives (-, -,), you are gonna get a positive(+)
[Like making a cross out of two lines].
[tex]-3(-7) = +3(+7)[/tex]
Since 3(7) normally equals 21, that would be the answer for this case.Given:ST=3x=3 and TU=2x=9 what is the value of ST
Answers
Answer:(x+3)2 4+4=( x+3)2=4
Step-by-step explanation:
the ratio of adults to children attending a new exhibit at the museum was found to be 8:5 based on this ratio , if 390 people attended one day , how many would be children
Answers
Answer:
150 children
Step-by-step explanation:
Ratio of adults to children= 8:5
Let the number of adults be 8 units and
the number of children be 5 units.
Total number of people
= 8 +5
= 13 units
Since there are 390 people,
13 units ----- 390 people
1 unit ----- 390 ÷13= 30 people
Number of children= 5 units
5 units ----- 30 ×5= 150 people
Thus, there are 150 children.