A student stands at the entrance of her school and notes the colors of cars that enter the parking lot. The results are shown in the bar graph below.
which of the following is a true statement regarding the info in the bar graph?
a. car color is a discrete variable
b. car color is a catagorial variable
c. car color is a continuous variable
d. frequency is a discrete variable
thank ya so much and have a lovely day!!
Answers
Answer:
B
Step-by-step explanation:
Color of car is a categorical variable. its value are not numerical
The frequency of cars entering the parking lot is a discrete variable so option (d) will be correct.
What is a variable?A variable in mathematics is a representation of any quantity whose value is changeable.
For example speed of a vehicle is a variable.
The value of the variable changes but the meaning of the variable never for example speed of vehicle changes but the word speed does not change.
A discrete variable is a variable whose values are different.
Since car color is not a variable because the meaning of variable is not constant in car color.
The frequency of vars is a discrete variable because it is different for each kind of car.
Hence "The frequency of cars entering the parking lot is a discrete variable".
To learn more about variables,
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Related Questions
When you reverse the digits in a certain 2 digit number you decrease its value by 81. What is the number if the sum of its digits is 9?
Answers
Answer: 90 is a number which has 9 as the sum of its digits, 9+0=9 and if the digits are reversed, 09 is 81 less than 90.
Step-by-step explanation: Since the number must be a 2-digit number, it seems that 90 is the only number that qualifies.
If you need some equations, here is a way to set up a system to solve:
x+y= 9 rewrite to get a value for y to substitute:
y = 9-x
10x +y = 10y + x + 81 rewrite by moving (subtracting variable terms from both sides)
10x -x + y-10y = 81 combine like terms
9x - 9y = 81
Substitute for y and solve for x
9x - 9(9-x)= 81 distribute.
9x - 81 + 9x = 81
18x = 162. 162/18 = 9
x = 9
Substitute in the original equation to solve for y
9 + y = 9
y = 0
10(9) + 0 = 10(0) + 9 +81
90 - 81 = 09
is a percent a constant of proportionality
Answers
Answer:
Yes.
Step-by-step explanation:
A percent can be represented as a fraction and a fraction is a constant of proportionality.
Element X decays radioactively with a half life of 6 minutes. If there are 260 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 113 grams
Answers
Answer:
7.2 minutes
Step-by-step explanation:
The formula to find the time using the radioactive decay rate formula is given as:
t = t½ × In(Nt/No)/-In2
Where
t½ = half life = 6 minutes
No = Initial Amount = 260 grams
Nt = Amount after decay
= 113 grams
Hence:
t = 6 × In(113/260)/-In2
t = 7.2131331036796 minutes
Approximately = 7.2 minutes
i have 3 green cubes,4 red cubes,2 black cubes,and 6 yellow cubes .what is the probability that i will randomly choose a red cube.
Answers
Answer:27%
Step-by-step explanation: 4/15
work: 3+4+2+6=15
Which expression is equal to (7 * 2) 2?
A)(7 + 2) × 2
B)(2x2)+7
C)7x(2 x 2)
D)(2 x 7) + (2x2)
Answers
Answer:
C. 7 * (2 * 2)
Step-by-step explanation:
Figure out the original expression to see the equivalent expression.
(7 * 2) * 2
14 * 2
28
We have to look for an expression that equals 28.
A is (7 + 2) * 2.
(7 + 2) * 2
9 * 2
18
A equals 18, so it's not equivalent to the original expression.
Now B, which is (2 * 2) + 7
(2 * 2) + 7
4 + 7
11
B equals 11, so it is also not equivalent.
Now C; that is 7 * (2 * 2)
7 * 4
28
C equals 28, so that is equivalent. Although we have found our answer, we need to make sure it's right by evaluating D. ((2 * 7) + (2 * 2))
(2 * 7) + (2 * 2)
14 + 4
18
D, like A, equals 18, so it is also incorrect.
C is the only expression that is equivalent to (7 * 2) * 2, so it is the answer.
Can someone plz help me like please
Answers
Answer:
1000 pennies 100 is 1 10th 400 makes 500 which is half of 1000
Solve the inequality -20 < 10n
Answers
Answer:
n>-2
Step-by-step explanation:
is y=x-6 linear????????
Answers
Answer:yeA
Step-by-step explanation:
Yea
Answer:
yes
Step-by-step explanation:
Y=Mx + b is linear and in this case we have Y= 0x - 6 or Y=0x + (-6).
A: x/8=3/4
B: 2/5=x/40
C: 1/8=x/40
D:x/10=12/15
Answers
6/8=3/4
2/5=16/40
1/8=5/40
8/10=12/15
I hope this helps.
What are the possible names of the angle shown here? Select all that apply.
Angle2
AngleRTS
AngleTSR
AngleR
AngleRST
Answers
Answer:
a c e
Step-by-step explanation:
Answer:
a c e is correct
Step-by-step explanation:
Please help me if you can
Answers
Answer:
1)-9x^5 + 7x^2 + 3 2) -2x2 • (x - 7) 3) -23v^2 + 7v + 4 4) is just 7x
what's is the square root of -1
-i
i
-1
1
Answers
Answer:
see explanation
Step-by-step explanation:
The [tex]\sqrt{-1}[/tex] = i
Answer:
The answer is I / Option B
Step-by-step explanation:
Plz can someone help me w/ this! ^_^
Answers
Answer: it would be a
Step-by-step explanation:
from my understanding you look at the sides and a traingale has 360 in total of the area.
so
A leaking faucet drips into a bucket. The faucet drips at a constant rate. The level of water in the bucket rises
3 inches in 6 hours. What was the rate per hour of the water level change?
Answers
Answer:
The per hour rate is 0.5 inches per hour
Step-by-step explanation:
Here, we want to calculate the rate at which the level of the water increased
Mathematically, we can get this by dividing the amount of increment by the time it took
That would be 3 inches divided by 6 hours
= 3/6 = 0.5 inches per hour
What is the value of x in the solution to the system of equations below?
15x - 12y = 13
30x + 9y = 4
Answers
Answer:
1/3
Step-by-step explanation:
Use the elimination method.
15x - 12y = 13
30x + 9y = 4
If you add both equations you will not cancel out any variables, so you need to multiply one of the equations by something. Multiply the first equation by -2 to cancel out the x values.
-2(15x - 12y = 13)
30x + 9y = 4
You should have these two equations now:
-30x + 24y = -26
30x + 9y = 4
Add them together now. You should get this now.
33y = -22
Divide both sides by 33. You should get y = -2/3
Now, substitute the y value into any of the two equations that you started with. Let's substitute the y value for the second equation.
30x + 9 (-2/3) = 4
30x - 6 = 4
30x = 10
30 30 (divide 30 and 10 by 30)
x = 1/3
Which expression gives the distance between the points
(2,3) and (4, -3)?
O A. (2-4)* +(3+3)
O B. (2-3)* +(4+3)?
C. (2-4)2 + (3+3)2
O D. (2-3)* +(4 +3)
SUBMIT
Answers
Answer:
C
Step-by-step explanation:
The formula for finding the distance between 2 points (x1, y1) and (x2, y2) is
d = √[(x2 - x1)² + (y2 - y1)²]
Here (x2, y2) = (2, 3) and (x1, y1) = (4, -3)
Plugging them gives us
d = √[(2 - 4)² + (3 - (-3))²]
d = √[(2 - 4)² + (3 + 3)²]
Which mapping diagram represents a relationship that is a function?
Mapping A
Mapping B
3
7
O Mapping A
O Mapping B
O both Mapping A and Mapping B
Answers
Answer:
Mapping A
Step-by-step explanation:
182632929236+188274739393974473
Answers
Answer:
the answer id
188274922026903709
Answer:
Exact Form: 188274922026903709
Decimal Form: 1.88274922*10^17
Step-by-step explanation:
Binda is working on an art project that requires 32 feet of ribbon. She has 17 1/2 feet of ribbon, but needs to purchase more ribbon to have enough to finish her art project. All of the ribbon will be cut into piece that are 1/4 foot long. Write and solve an equation that can be used to determine the number of feet of ribbon, x, that Binda needs to purchase to finish her art. How many 1/4 foot pieces of ribbon can Binda make from all 32 feet of ribbon?
Answers
Answer:
x + 17.5 = 32 (subtract 17.5 from 32 to get your answer)
14.5 feet of ribbon Binda needs to purchase
32 / 0.25 = 128 pieces of 1/4 foot ribbon
Answer:
x + 17.5 = 32 (subtract 17.5 from 32 to get your answer)
14.5 feet of ribbon Binda needs to purchase
32 / 0.25 = 128 pieces of 1/4 foot ribbon
Step-by-step explanation:
What is the best piece of advice you’ve ever received?
Answers
Answer: i dunno
Step-by-step explanation:
M/6 = -9
answer m=?
Answer the ? Mark pls
Answers
Answer:
[tex]\frac{m}{6}[/tex] = -9 6 × (-9) = -54
Step-by-step explanation:
Molly bought a pair of gloves and a skirt.
The gloves cost £4
She sold the gloves and the skirt for a total of £48
She made 100% profit on the cost of the gloves.
20% profit on the total cost.
Work out her percentage profit on the cost of the skirt.
Give your answer to 1 decimal place.
Answers
Answer:
U think it's 2.4
Step-by-step explanation:
.48 ÷by 4 =2
20% of 12=2.4
James drove to the lake and back the trip there took four hours and the trip back took six hours he average 20 mph faster on the trip there on on the return tip find Jameses average speed on the trip
Answers
Answer: 60 mph
Step-by-step explanation:
Question wants the speed to the lake.
It took James 4 hours to get to the lake and he drove at a speed 20 mph faster than when he came back.
It took him 6 hours to come back.
Assuming the speed James used on the return trip is x:
Expression for distance is:
4(x + 20) = 6x
4x + 80 = 6x
2x = 80
x = 80/2
x = 40 mph
Speed to the lake = 40 + 20
= 60 mph
Rectangle ABCD has a width of 8 yards and a length of 20 yards. Rectangle QRST, which is similar to rectangle ABCD, has a length of 40 yards.
Find the scale factor of ABCD to QRST and the perimeter of each rectangle.
Answers
Answer: 16 yards would be your answer
The scale factor of ABCD to QRST is 1:2
The perimeter of rectangles ABCD and QRST are 56 yards and 112 yards respectively.
Rectangle ABCD has a width of 8 yards and a length of 20 yards.
Rectangle QRST is similar to rectangle ABCD.
Rectangle QRST has a length of 40 yards.
Scale factor:Therefore, the scale factor of ABCD to QRST can be calculated as follows:
let
x = width of rectangle QRST
8 / x = 20 / 40
8 / x = 1 / 2
x = 16
The scale factor of ABCD to QRST is 1:2
Perimetersperimeter ABCD = 2(8 + 20) = 56 yards
perimeter QRST = 2(16 + 40) = 112 yards.
learn more on similar rectangles here: https://brainly.com/question/8956702?referrer=searchResults
What is 666x666x999x1000
Answers
Answer:
443112444000
Step-by-step explanation:
mark me brainliest for first answer
Answer:
443,112,444,000
Step-by-step explanation:
666 x 666 x 999 x 1000 = 443,112,444,000
Hope it helps :)
Can you please help? :)
Answers
Solve for x
30°
9x - 3
Answers
60 = 9x - 3
63 = 9x
x = 7
Which graph represents the equation below f(x)=-(x+1)(x-3)
Answers
Answer:
The answer is "A" (1,4)
Step-by-step explanation:
Got it correct on the test.
Hi,
The file attached shows the correct answer:
Graph A would be the correct answer.
Graph A has a vertex of (1,4)
XD
What is 2/5 divided 1/3
Answers
Answer:
1.33
Step-by-step explanation:
Answer:
1 and 1/5
Step-by-step explanation:
2/5 divided by 1/3, so keep change flip applies to this so keep 2/5 change division to multiplication and flip 1/3 to 3/1 that changes the equation to 2/5 times 3/1 and that equals 1 and 1/5
Find the difference.
-3.4 -(-1.9)
Answers
Answer:
The answer is -1.5.
Step-by-step explanation:
-3.4 - (-1.9)
-3.4 + 1.9
-1.5
Please mark me BRAINLEST