Answers
Answer:
Step-by-step explanation:
Non of them are
Related Questions
The random variable X has mean 12 and standard deviation 3. The random variable W is defined as W = 7+2X. What are the mean and standard deviation of W?
A. The mean is 24, and the standard deviation is 6.
B. The mean is 24, and the standard deviation is 13.
C. The mean is 31, and the standard deviation is 3.
D. The mean is 31, and the standard deviation is 6.
E. The mean is 31, and the standard deviation is 13.
Answers
Answer: D. The mean is 31, and the standard deviation is 6.
Step-by-step explanation:
Given the data :
X = mean = 12 ; Standard deviation = 3
W = 7 + 2x
Variance of W = 2x
Variance = Standard deviation²
(2x)² = 4x²
Variance
Standard deviation of X = 3
Variance (W) = 4*3² = 4 * 9 = 36
Variance (W) = 36
Standard deviation = sqrt(variance)
Standard deviation = sqrt(36) = 6
Mean ; of x = 12
Mean(W) = 7 + 2(12)
Mean = 7 + 24
Mean = 31
I need help asap I’m confused
Answers
Is it true or false that a temperature of -3F is colder than a temperature of -9
Is it true or false that A elevation of -42ft is greater than an elevation of -54 ft
Is it true or false that a profit of 28$ is more than a profit of $18
Answers
Answer:
true
Step-by-step explanation:
udh xxx yxdydudhxhxhddhdhdhududududdu
6051 was rounded to the nearest one. What is the lower bond ?
Answers
Answer:
6050.5
Step-by-step explanation:
The key to this is "rounded to the nearest one"
If the question was to say "round to the nearest 10" you would do 10÷2 = 5
Always divide by 2
1 ÷2 = 0.5
6051 - 0.5 = 6050.5
If it was upper bond it would be:
6051 + 0 5 = 6051.5
Write an equation for line N
Answers
Answer:
y=x-1
Step-by-step explanation:
In the balance scale/equation analogy, what should you write in the blank on the right side of the equation in order to balance the scale for the following equation? 2(x + 1) = 2x + ______
(x + 1)
4
x
2
Answers
Answer:
Option D: 2 is the correct answer.
Step-by-step explanation:
Given equation is:
2(x + 1) = 2x + ______
For balancing the equation, the variables and constants must be same on both sides of the equation.
Simplifying 2(x+1) gives us 2x+2
As 2x is already there, we will add 2 with it in the equation.
Hence,
Option D: 2 is the correct answer.
Is 6x+3y=42 an infinite solution
Answers
nope, I got
x= −1/2y+7
I hope this answers ur question!
Answer:
No it is not. A good calculator for algebra is Symbolab
This graph and table show the total number of cars parked in a parking lot, n, after it was open for t hours.
Plot and table. Plot has horizontal axis from 0 to 3 in increments of 1, labeled t, and vertical axis from 0 to 18 in increments of 2, labeled n. Plot shows the points left parenthesis 0 comma 0 right parenthesis, left parenthesis 1 comma 6 right parenthesis, left parenthesis 2 comma 12 right parenthesis, and left parenthesis 3 comma 18 right parenthesis. Two-column table has column Time in hours left parenthesis t right parenthesis showing values 0, 1, 2, 3 and column Number of cars parked left parenthesis n right parenthesis showing values 0, 6, 12, 18.
What is an equation showing the relationship between n and t?
Enter your answer by filling in the box to complete the equation.
n =
Answers
Answer: n = 6t
Explanation: i took the test
Write out the algebraic expression of the ratio 15 to 23 subtracted by d
Answers
Or
Try the pic I uploaded
Please mark BRAINLEST
Hello? Please help me with this
Answers
Answer:
.25y + 2y
Step-by-step explanation:
Use the distributive property to distribute the y to each term in the parentheses. y times .25 is .25y and y times 2 is 2y.
Please help!!!!!!!!!!!!!! I need help please!!!!!!
Answers
Answer:
c
Step-by-step explanation:
Answer:
It would be c
Step-by-step explanation:
Have a nice day!
For the equation, decide if it is always true or never true.
x − 3 = 2x − 3 − x
Answers
Answer:
true
Step-by-step explanation:
Heather buys 12 patio chairs for $366. Each chair costs the same amount.
Part A
Which equation represents the best estimate for the cost of each chair?
A. $350 ÷ 5 = $70
B. $360 ÷ 12 = $30
C. $400 ÷ 10 = $40
D. $400 ÷ 20 = $20
Answers
Answer:
Step-by-step explanation:
Your grade before taking the final exam is 493pts out of 510 possible points. The final exam is worth 100 points. How many points do you have to get on the final exam to get 93% overall for the class
Answers
Answer:
You need 75 points.
Step-by-step explanation:
Giving the following information:
Total number of points= 510 + 100= 610 (100%)
Actual number of points= 493
First, we need to determine the number of points required to reach 93%:
Points required= 610*0.93
Points required= 567.3 = 568
Now, the points needed in the final exam:
Difference of points= 568 - 493
Difference of points= 75 points
You need 75 points.
2/3 minus 4/9 what is the fraction
Answers
Answer:
2/9. Decimal form is 0.222....
Step-by-step explanation:
-3-5-6--4 -3--1
What is the solution to this linear system? Enter a value in each box to create an ordered pair.
Answers
Answer:
-3, 6
Step-by-step explanation:
how do you solve 9 tenths minus 13 fiftenths
Answers
Answer:
0.04
Step-by-step explanation:
1. 9/10 = 0.9 and 13/15 = 0.86
2. Subtract 0.9 and 0.86
3. You should end up with 0.04
Remember when a number goes like 0.86666666666 to use 0.86 or if it has 0.86666666667 to use 0.87 because you would be simplifying it.
In the diagram below, the three lines intersect in the same point, forming six numbered angles.
Answers
For the given figure of intersecting lines the expression holds is m∠1 + m∠3 + m∠5 = 180°. Option D is correct.
Given that, A figure of the intersecting lines is given where 3 lines intersect at the same point.
What is the angle?The angle can be defined as one line inclined over another line.
What is a Line?A line can be defined by the shortest distance between two points is called a line.
Here,
From the figure
∠1 = ∠4
∠2 = ∠5
So,
∠6 = ∠3
Now, from the option, the property hold is m∠1 + m∠3 + m∠5 = 180°. because m∠1 + m∠6 + m∠5 = 180°, or ∠6 = ∠3.
Thus, for the given figure of intersecting lines the expression holds is m∠1 + m∠3 + m∠5 = 180°. Option D is correct.
Learn more about Angles here: https://brainly.com/question/13954458
#SPJ2
Graphs can only provide a limited view of the data.
a. True
b. False
Answers
Answer:
Graphs can only provide a limited view of the data.
b. False
Step-by-step explanation:
On the contrary, graphs present better views of the presented data. Mathematically, graphs are methods of visually illustrating data relationships. The main purpose of using a graph is to present complicated data that show trends or relationships between variables. It has been an important tool for presenting data in a visual and easy-to-understand format, without using too much description.
In basketball, Nicole makes 4 baskets for every 10 shots. If she takes 3 shots, what is the probability that exactly 2 of them will be baskets
Answers
Answer:
0.288
Step-by-step explanation:
Calculation for what is the probability that exactly 2 of them will be baskets
In order for us to find the probability that exactly 2 of them will be baskets we would have to make use of binomial distribution using Microsoft Excel
P =4 baskets/10 shots=0.4,
x = 2
n = 3 shots
P(2)=BINOMIAL DISTRIBUTION(2,3,0.4,FALSE)
P(2)=0.288
Therefore the probability that exactly 2 of them will be baskets is 0.288
Find x
27 degrees and 32 degrees will give brainlist
Answers
Answer:
x = 121°
Step-by-step explanation:
If you add up all the angles of a triangle, you get 180°.
So you must add up all the angles.
[tex]27+32+x=180\\\\59+x=180[/tex]
Next you subtract 59 on both sides.
[tex]x=121[/tex]
x should be 121°.
If you would like to check your answer, you can add up 27, 32, and 121. If it all equals to 180, then your answer is correct.
Where another question helpppppppp plssssss
Answers
Answer:
41.1 = dekagrams
4.14 = hectograms
0.414 = kilograms
Answer:
I agree with the other person
Step-by-step explanation:
is the product of 18 negative numbers and 20 positive numbers a positive number or negative
Answers
Answer:
positive
Step-by-step explanation:
even negatives = positive
whatever positives = positive
positive*positive = positive
30 POINTS WOWWWWWW plz answer :)
Answers
Answer:
Step-by-step explanation:
Sophia spent 6.10 for school supplys she spent 3.0” for a notebook
Answers
Answer:
0.85
Step-by-step explanation:
You are flying your dragon kite. It's connected to 40yd of string. The kite is directly above the edge of a pond. The edge of the pond is 36yd from where the kite is tied to the ground. How high is the kite above the edge of the pond?
Answers
We have a right triangle with hypotenuse 38 and leg 34.
We want to find the other leg.
We use the Pythagorean Theorem:
3
Write the value of the 3 in each number.
a) 3.65
b) 0.093
c) 18.31
d) 72.439
e) 32.701
f) 19.03
Answers
Answer:
A. hundreds
B. ones
C.. tens
D. tens
E. 10,000
F. ones
Answer:
a. units or 3.00
b. thousandths or 0.003
c. tenths or 0.30
d. hundreths or 0.030
e. tens or 30.0
f.hundreths or 0.03
Step-by-step explanation:
Will give Brainliest! A rectangle on the coordinate plane has vertices at (0, 0), (4, 0), (4, 2) and (0, 2). A dilation of the rectangle has vertices at (0, 0), (2, 0), (2, 1) and (0, 1). Find the scale factor.
Answers
Answer: Sample. Points. A(2, 1). B(1, 3). C(3, 2). Segments ... and angle measures of the image of △ABC after a dilation with a scale factor of k? Dilating Lines ... Graph quadrilateral KLMN with vertices K(−3, 6), L(0, 6), M(3, 3), and N(−3, −3) ... Find the perimeter and area of the rectangle. b.
Step-by-step explanation:
Can someone solve this problem?
[tex]8y - 7 + 7[/tex]
Thank you very much.
Also Hedland gets a shoutout.
Answers
Since two opposites add up to zero , remove them from the expressions
8y
Solution = 8y
i have another question, whats 16 divided by 6,720?
Answers
Answer: 0.00238095238
Step-by-step explanation: