Answer: The answer is 70
Step-by-step explanation:
The random variable X has a uniform distribution with values between 16 and 24. What is the mean and standard deviation of X
Answer:
[tex]Mean = 20[/tex]
[tex]SD = 2.31[/tex]
Step-by-step explanation:
Given
[tex]a = 16[/tex]
[tex]b = 24[/tex]
Solving (a): The mean
The mean of a uniform distribution is:
[tex]Mean = \frac{1}{2}(a + b)[/tex]
This gives:
[tex]Mean = \frac{1}{2}(16 + 24)[/tex]
[tex]Mean = \frac{1}{2}(40)[/tex]
[tex]Mean = 20[/tex]
Solving (b): The standard deviation
The standard deviation is:
[tex]SD = \sqrt{\frac{(b - a)^2}{12}}[/tex]
This gives:
[tex]SD = \sqrt{\frac{(24 - 16)^2}{12}}[/tex]
[tex]SD = \sqrt{\frac{(8)^2}{12}}[/tex]
[tex]SD = \sqrt{\frac{64}{12}}[/tex]
[tex]SD = \sqrt{5.333}[/tex]
[tex]SD = 2.31[/tex]
Alfonso has 435 stamps in his collection. He wants to collect at least
815 stamps. Write and solve an inequality to determine how many
more stamps Alfonso must collect to reach his goal. Let d represent the
number of stamps Alfonso must collect to reach his goal.
435 + d-815; d-380
435 + > 815;d > 380
435 + d 2815;d > 815
435 +0 2 815; d 2380
Answer:
Inequality: [tex]435 + d \geq 815[/tex]
Solution: [tex]d \geq 380[/tex]
Step-by-step explanation:
He has 435 stamps in his collections.
He will collect d stamps, and he wants to collect at least 815 stamps, that is, the sum of 435 and d has to be at least 815.
So the inequality is given by:
[tex]435 + d \geq 815[/tex]
And the answer is given by:
[tex]d \geq 815 - 435[/tex]
[tex]d \geq 380[/tex]
It isnt blurry, free brainlist
Answer:
10. y=3x-1
11. y=-4x+3
12. y=1/3x+4
Step-by-step explanation:
Hope this helps :)
Answer:
Answer:
you said you needed 22,23
22. y=7x-6
23. y=-x
Step-by-step explanation:
use math-way to put in the points
it explains for you
Step-by-step explanation:
what is 2(3+6) - 4......................
Answer:
14
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
You have to use PEMDAS, so first you do the parentheses, (3+6)=9. Then you multiply 2 times 9=18. The last step is to subtract 4, so 18-4=14
(hope this helps!)
What is the slope of a line that is perpendicular to the line y = 8x + 5?
Answer . m= -1/8
Step-by-step explanation:
The perpendicular slope is the negative reciprocal. Meaning that the numerator and denominator are switched and the sign of the slope becomes the opposite. (if the slope was -8, then the perpendicular slope would be 1/8)
Please someone help me with this question
Answer:
Where's the question?
Estimate the quotient of 8,132 ÷ 20 to the nearest hundred. Explain how you found the estimate.
There are 20 pieces of fruit in a bowl and 5 of them are apples. What percentage of the pieces of fruit in the bowl are apples?
A. 5%
B.15%
C.25%
D.30%
Answer:
25%
Step-by-step explanation:
5/20 = 1/4 = 25%
evaluate the following 32^4/5
What is the equation of the line perpendicular to y = 1/2x + 3 passing through the point ( -3, 4)?
Answer:
y=-2x-2.
Step-by-step explanation:
m= -2 for perpendicular line
m= y2-y1/x2-x1
-2 = y-4/x+3
y=-2x-2
plz anwser this plzzzzzzzzzzzzzzzzzz
Answer:1st one
Step-by-step explanation: the pointy side of the inequality sign will always lead u to draw the line to that side if u understand what i mean
Answer:
It's the first choice
Step-by-step explanation:
..................................
Find the zeros of the function.
Enter the solutions from least to greatest.
f(x) = 5x^2 - 20
lesser x =
greater x =
Answer:
lesser x = -2
greater x = 2
Step-by-step explanation:
The values of a function f(x) are the values of x for which f(x) = 0.
In this question:
[tex]f(x) = 5x^2 - 20[/tex]
So, finding the zeros:
[tex]5x^2 - 20 = 0[/tex]
[tex]5x^2 = 20[/tex]
[tex]x^2 = \frac{20}{5}[/tex]
[tex]x^2 = 4[/tex]
[tex]x = \pm \sqrt{4}[/tex]
[tex]x = \pm 2[/tex]
So
lesser x = -2
greater x = 2
i giveeeeee brainlilstt
Answer:
H. 16 ft
Step-by-step explanation:
15/ 24 = 5/8
10 / 5 =2
2x8 = 16
Answer:
the length of x is option H. x=16
A child stands at the foot of a tall slide and throws a ball toward the top of the slide. The foot of
the slide is located at the origin; the shape of the slide is modeled by the equation y = 2x; the
path of the ball through the air is modeled by y *? + 5x, where x is the horizontal distance
traveled by the ball and y is the height of the ball (both distances in feet). When the ball hits the
slide, how many feet off the ground will it be?
Your answer
Answer: 6, 6 feet
Step-by-step explanation:
I GIVEEE BRAINLILSTT
Answer:
vb b ccbbv bv
Step-by-step explanation:
vb vb vb vb vbvbncv
Can someone explain me on how to do these step by step
Answer: 46 miles per hour.
Step-by-step explanation: Just divide distance by time (in this case 690/15) and you get the velocity (46 mph).
A group of friends is sharing 2 1/2 pounds of berries if 5 friends are sharing berries how many pounds of berries does each friend recieve ?
The force, F (Newtons), between two objects is inversely proportional to the square of the distance, d (metres), between them.
The force is 0.006 Newtons when the distance between the objects is 4 metres.
Work out d (rounded to 2 DP) when F=0.045 Newtons.
Answer:
d = 1.46 m
Step-by-step explanation:
We'll begin by obtaining the relationship between the force (F) and the distance (d). This can be obtained as follow:
From the question given above,
F is inversely proportional to square of d. This can be written as:
F ∝ 1/d²
F = K/d²
Cross multiply
K = Fd²
But:
Force (F) = 0.006 N
Distance (d) = 4 m
Constant (K) =?
K = Fd²
K = 0.006 × 4²
K = 0.006 × 16
K = 0.096 Nm²
Therefore, the relationship between the force (F) and the distance (d) is:
F = K/d²
F = 0.096 / d²
Finally, we shall determine the distance when the force is 0.045 N. This can be obtained as follow:
Force (F) = 0.045 N
Constant (K) = 0.096 Nm²
Distance (d) =?
F = K/d²
0.045 = 0.096 / d²
Cross multiply
0.045 × d² = 0.096
Divide both side by 0.045
d² = 0.096 / 0.045
Take the square root of both side.
d = √(0.096 / 0.045)
d = 1.46 m.
Order the following numbers from least to greatest.
Put the lowest number on the left.
Your answer
-2 4 1 5
Answer:
-2,1,4,5
Step-by-step explanation:
3y + 1 = 4y - 6 Please solve!
Answer:
y = 7
Step-by-step explanation:
3y + 1 = 4y - 6
-3y -3y
1 = y - 6
+6 +6
7 = y
Answer:
7 = y
3y + 1 = 4y - 6
-3y. -3y
------------------
1 = 1y - 6
+6 +6
------------------
7 = y
Mrs. Harris divided up her leftover Halloween candy to her three children. If each child received 9 pieces of candy, how many pieces of candy did Mrs. Harris originally have?
I will give brainliest!
i givee brainlilsttt
Answer:
( 2, 1 )
Step-by-step explanation:
x remains the same and y coordinate changes signs
Answer:
(2, -1)
Step-by-step explanation:
X=going to the right=Positive
Y=going down=Negative
X=(2)
Y=(-1)
Hope this helps
Q = (2,-1)
Help me please I’m struggling
I.
What similarity condition would you use to prove that the triangles
are similar?
H
68
87
25
E
870
AA~
SAS
SSS-
Answer:
AA
Step-by-step explanation:
For what value of x is the rational expression below equal to zero?
X-4
X5
A. -6
B. -4
C. 6
D. 4
Johann takes a random sample of 101010 of his coworkers and asks them each how many hours they worked in the past week. Assume that their hours worked are independent, and let HHH represent the average number of hours worked. Is HHH a binomial variable
Answer:
there is no success or failure in the scenario
Step-by-step explanation:
khan academy
The average number of hours worked. Is not a binomial variable.
Binomial variable.
A binomial variable is a variable that can take either of two forms. It could either be heads or tail, yes or no and success or failure. For example, if a coin is tossed, it can either be heads or tail. Thus, it is a binomial variable.
The average hours worked can have more than two values. Thus it is not a binomial variable.
To learn more about binomial variables, please check: https://brainly.com/question/14291922
Help me please and thanks!
Answer:
1. B
2. A
Step-by-step explanation:
1. Because there are 9 zeros.
2.
4096 bytes = 1 page
(8 * 10^9) / 4096 = closet answer is A
What is15% off of $25?
Answer:
21.25
Step-by-step explanation:
Can someone solve this pls
PLEASE HELP WILL MARK BRAINLIEST!!!!!
The numbers inside the parenthesis is the value of x, uses the equation associated with the value of x and solve.
H(1) Since 1 fits 1≤x≤3 use x^3
x^3 1^3 = 1
h(1) = 1
h(4) 4 fits x >3, so use 5
h(4) = 5