Answer:
1. A
2. B
3. B
4. C
5. A
Step-by-step explanation:
1. Data: is referred to as the collection of facts such as values and measurement. It include but isn't limited to attributes, names, fields and definitions that are being used in a computer database system.
2. Quantitative: this nature of data can be classified as discrete or continuous data. It is typically based on numerical values such as mathematical or statistical analysis of data gathered or collected from various sources e.g questionnaires, polls, surveys etc.
3. Sample: it is a sub-collection of elements coming from a certain population. Sampling can be defined as a process used to collect or select data (objects, observations, or individuals) from a larger statistical population using specific procedures.
4. Black, blue, yellow, and red are examples of what qualitative data according to its nature. It includes variables that are non-numerical in nature i.e they are categorical. For example, the color of a car, gender, shapes etc.
5. Juan conducted his research using a survey method because he created a questionnaire so as to gather data from his participants.
Brainliest to who answers first!
Select all correct conversions.
1. 53 km = 5,300 m
2. 23 cm = 2.3 mm
3. 15 m = 1,500 cm
4. 117 mm = 0.117 m
5. 79 m = 0.079 km
Answer:
correct answers
15 m=1,500
117 mm=0.117 m
79 m=0.079 km
hope it helps
Find the value of X. If necessary write in radical form
Answer:
Step-by-step explanation:
[tex]a^{2} +b^{2} =c^{2} \\6^{2} +7^{2} =x^{2} \\\sqrt{85} = x[/tex]
Answer:
sqrt(85) =x
Step-by-step explanation:
Since this is a right triangle, we can use the Pythagorean theorem to find the hypotenuse
a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse
6^2 + 7^2 = x^2
36+49 = x^2
85 = x^2
Take the square root of each side
sqrt(85) = sqrt(x^2)
sqrt(85) =x
i dont get these questions on math help i give brainliest
Answer:
here a link to your answer
Step-by-step explanation:
https://brainly.com/question/20419046
plus the answer is b
Decide whether there is enough information to prove that r∥s. If so, state the theroem you would use.
Answer:
C
Step-by-step explanation:
if the two lines were parallel, then the alternate, on opposite side of the trasversal, exterior, or not inside the lines, angles would be congruent. sicne they are, the line are parallel
please anyone help asap
Answer:
Hi there! The correct answer should be: x is 60 degrees
Step-by-step explanation:
okay, so the equation is:
2x + 60 = 180
which we will solve:
2x + 60 - 60 = 180 - 60
2x = 120
x = 60
please help me answer this
Answer:
1) glazed = 48 people
Chocolate = 72 people
Jelly = 24 people
Coconut = 16 people
2)9th grade = 219 students
10th grade = 167 students
11th grade = 147 students
12th grade = 151 students
Step-by-step explanation:
We are solving the examples;
1) We are told that there are 20 students in Kayla's first period class.
No. that preferred glazed donuts = 6
No. that preferred chocolate donuts = 9
No. that preferred jelly donut = 3
Number that preferred coconut donut = 2
Now,there are a total of 160 students in the entire grade. So to find the Number of students in this entire grade that will each prefer the types of donuts listed above, we will solve as;
For glazed donuts; 6/20 × 160 = 48 people
For chocolate donuts; 9/20 × 160 = 72 people
For jelly donut; 3/20 × 160 = 24 people
For coconut donut; 2/20 × 160 = 16 people
2) Total number of students is;
9th grade = 300 students
10th grade = 275 students
11th grade = 250 students
12th grade = 280 students
73% of 9th grade prefer valorant. Thus;
73% × 300 ≈ 219 students
61% of 10th grade prefer valorant. Thus;
61% × 275 ≈ 167 students
59% of 11th grade prefer valorant. Thus;
59% × 250 ≈ 147 students
54% of 12th grade prefer valorant. Thus;
54% × 280 ≈ 151 students
A statistics student is studying if there is a relationship between the price of a used car and the number of miles it has been driven. She collects data for 20 cars of the same model with different mileage, and determines each car’s price using a used car website. The analysis is given in the computer output. Predictor Coef SE Coef t-ratio p Constant 24157.2 2164.1 2.965 0.046 Mileage -0.181 0.024 5.377 0.000 S = 3860.7 R-Sq = 68.0% R-Sq(Adj) = 67.5% Using the computer output, what is the equation of the least-squares regression line?
Answer:
y = - 0.181x + 24157.2
Step-by-step explanation:
Equation of the regression line is given from. The table by the Coefficient of the predictor, x variable and the intercept value :
The predictor here is mileage, which has a Coefficient of - 0.181
The constant value = intercept 24157.2
The regression equation is written in the form :
y = mx + c ; m = slope = Coefficient of predictor, ; x = predictor,
Hence, we have :
y = - 0.181x + 24157.2
Answer:
A.
Step-by-step explanation:
on edge2022
A tutor invited 3 students to a study group. Those 3 students each invited 3 students to the study group. Then those additional students each invited 3 students to the study group. How many total students are invited to the study group?
Answer:21 students
Step-by-step explanation: 3x7=21 students.
PLEASE HELP ME PLEASE
The cost (y), in dollars, to purchase x dozen doughnuts from Bakery A and Bakery B can be found using the equations shown in the table.
Bakery Cost (y)
А y = 9x
B y = 8x
Choose all of the statements that are true based on the equations given.
A. Bakery A charges about 8 cents more per doughnut than Bakery B.
B. The cost of 2 dozen doughnuts is 2 dollars more at Bakery A than Bakery B.
C. Bakery A charges $1.33 per doughnut and Bakery B charges $1.50 per doughnut.
D. Bakery A charges $0.75 per doughnut and Bakery B charges $0.67 per doughnut.
Answer:
T
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
PLEASEEEE HELLPPPPPPPPP
The temperature in Sam's home varies sinusoidal over time. Given the equation T = 4 cos(30(t − 8)) + 16 describes the temperature of the house in degrees celsius in terms of the number of hours since 12 midnight.
Answer:
The temperature is: 14.5 degrees
Step-by-step explanation:
Given
[tex]T = 4 \cos(30(t - 8)) + 16[/tex]
Required
The temperature at 4:15
We have:
[tex]t = 4:15[/tex]
Convert to hours
[tex]t = 4+\frac{15}{60}[/tex]
[tex]t = 4+0.25[/tex]
[tex]t = 4.25[/tex]
So:
[tex]T = 4 \cos(30(t - 8)) + 16[/tex]
[tex]T = 4 \cos(30(4.25 - 8)) + 16[/tex]
[tex]T = 4 \cos(30(-3.75)) + 16[/tex]
Open bracket
[tex]T = 4 \cos(-112.5) + 16[/tex]
[tex]T = 4 *-0.3826 + 16[/tex]
[tex]T = -1.5304 + 16[/tex]
[tex]T = 14.4696[/tex]
Approximate
[tex]T = 14.5^o[/tex]
6,2, 2/3 Find the 8th term
Answer:
2/729
Step-by-step explanation:
2/3÷3 = 2/9
2/9÷3=2/27
2/27÷3=2/81
2/81÷3=2/243
2/243÷3=2/729
A question "I" made.
Answer:
41.67%
Step-by-step explanation:
:)
Alan’s gift basket contains three oranges for every five apples. If the basket has nine oranges, how many apples does it have?
Answer:
15 apples
Step-by-step explanation:
400plus2000minus45000000
A play runs for five evenings. The table shows the number of tickets sold and the amount of money collected each evening.
What is the cost per ticket?
need he,p pls and thank u
El agua de un manantial se conduce hasta unos depósitos cilíndricos que miden 12 m de radio de la base y 20 m de altura. Luego se embotella en bidones de 2.5 litros. ¿Cuántos envases se llenan con cada depósito?
Answer:
Con cada depósito se pueden llenar 3,617.28 envases.
Step-by-step explanation:
Dado que el agua de un manantial se conduce hasta unos depósitos cilíndricos que miden 12 m de radio de la base y 20 m de altura, y luego se embotella en bidones de 2.5 litros, para determinar cuántos envases se llenan con cada depósito se debe realizar el siguiente cálculo, sabiendo que el volumen de un cilindro se obtiene multiplicando pi por el radio del cilindro al cuadrado por su altura:
3.14 x (12x12) x 20 = X
3.14 x 144 x 20 = X
452.16 x 20 = X
9,043.2 = X
9,043.2 / 2.5 = X
3,617.28 = X
Por lo tanto, con cada depósito se pueden llenar 3,617.28 envases.
The circumference of a circle is 16 ft.
The radius is ?
Answer:
8/pi or approximately 2.55 ft
Step-by-step explanation:
The formula for the circumference is
C = 2 * pi *r
16 = 2 * pi *r
Divide each side by 2 pi
16 / ( 2 pi) = 2 * pi * r/ ( 2 pi)
8 / pi = r
Using 3.14 for pi
8 / 3.14 = r
2.54777 = r
2.55 =r
Answer:
Radius ≈ 2.55 ft.
Step-by-step explanation:
GIVEN :-
Circumference of circle = 16 ft.TO FIND :-
Radius of the circleFORMULAE TO KNOW BEFORE SOLVING :-
For a circle with radius 'r' & circumference 'c' ,
[tex]r = \frac{c}{2\pi }[/tex]
SOLUTION :-
[tex]Radius = \frac{Circumference}{2\pi } = \frac{16}{2\pi } = \frac{8}{\pi } = 2.55 ft. (appx)[/tex]
please answer my question
Answer:
your questions is not complete yet please send full questions and write your question ⁉️ so I will solve your problem
Determine whether the side lengths could represent a right triangle.
14, 21, 25
Answer:
No
Step-by-step explanation:
Using the given values, 25 is the largest value, so if this were a right triangle, it would be the hypotenuse.
Using Pythagoras' theorem: For this triangle to be a right triangle, √(21² + 14²) must be equal to 25.
√(21² + 14²) = 25.239 (5sf) ≠ 25
Hence the triangle formed is not right.
Find the value of x
because its isosceles so 9+9=x²
and x equal
2√3
Answer:
(3/2)√2
Step-by-step explanation:
Here the ratio of x to 3 is the sine of the 45 degree angle.
Thus:
x √2
----- = -------
3 2
Cross multiplying, we get 2x = 3√2, so that x must be (3/2)√2
Suppose the cost of electricity is $0.30 for each kilowatt-hour. Carlos's house runs on 11.4 kilowatt-hours a day. Find the cost of electricity for Carlos's house in one day.
Answer:
$3.42
Step-by-step explanation:
the cost = 11.4 × 0.30 = $ 3.42
In parallelogram ABCD if m
Answer:
145 degrees
Step-by-step explanation:
All angles in a parallelogram always add up to 360 degrees when added together.
And all angles are the same as the angle adjacent to them.
Since we already know that angle DAB is 35, then the adjacent angle BCD, is also 35.
And since we know that all the angles add up to 360, we just gotta do the math.
35 + 35 = 70 and when you subtract 70 from 360 you get 290. Now all you have to do is divide 290 by 2, and you get 145, which is also the same as angle ABC since they are adjacent to each other.
If x= 3, then the length of AB is
Answer:
7
Step-by-step explanation:
AB = 3x-2
Let x=3
AB = 3*3 -2
= 9-2
=7
Help me please!!!!!!!!!!
0.07
EXPLANATION
The number of sophmores is 2+25+3 = 30.
Of these sophmores, 2 drive to school.
So the probability that a student drives to school, given that they are a sophmore, is 2/30, or approximately 0.07.
solve for t in d =rt if d =57 and r =30. t=
57 = 30 × t
t = 57/30
t = 19 × 3 / 10 × 3
t = 19/10
t = 1.9
Answer:
t = 1.9
Step-by-step explanation:
Given
d = rt
Substitute d = 57 and r = 30 into the equation
57 = 30t ( divide both sides by 30 )
[tex]\frac{57}{30}[/tex] = t , that is
t = 1.9
2.
What is the mode of this data set?
14, 79, 77, 11, 14, 78, 77, 65, 31, 56, 16
56
14
11 and 56
14 and 77
Answer:
14
Step-by-step explanation:
Because it occurs the most frequently in the given data set
Answer:
14 and 77
Step-by-step explanation:
I just used a calculator
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What is the probability that a randomly chosen person's IQ score will be between 101 and 134, to the nearest thousandth
Answer:
Step-by-step explanation:
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What is the probability that a randomly chosen person's IQ score will be between 101 and 134, to the nearest thousandth
z = (x-μ)/σ, where x is the raw score,
μ is the population mean = 100
σ is the population standard deviation = 15
For x = 101
z = 101 - 100/15
z = 0.066667
Probability value from Z-Table:
P(x = 101) = 0.52658
For x = 134
z = 134 - 100/15
z = 2.26667
Probability value from Z-Table:
P(x= 134) = 0.98829
Therefore,
the average of nine number is 16. the average of 4 of these number is 11. what is the average of the other five number ?
Answer:
11
Step-by-step explanation:
We know formula to find average is,
Average=
Numberofnumbers
Sumofnumbers
Since the average of 10, so the sum of numbers is 5×10=50
As the fifth number is given 6, so rest 4 numbers will be = 50−6=44
Average of first four numbers will be Average=
4
44
=11