Answer:
I gues answer is 4( factor)
Find the missing value using the slope and points m=2/3 and (8, 4) (x, 8)
(I’ll give brainlest answer too whoever answers quick and it’s right I’ll be checking)
Answer:
the missing value should be 14
Step-by-step explanation:
A study of the time spent shopping at a supermarket is for a basket with 20 specific items showed an approximately a uniform distribution between 20 minutes and 40 minutes. What is the probability that the shopping time will be:
Answer:
The probability that the shopping time will be between 25 and 30 minutes is 0.25.
Step-by-step explanation:
The question is:
What is the probability that the shopping time will be between 25 and 30 minutes?
Solution:
Let X represent the time spent shopping at a supermarket for a basket with 20 specific items.
It is provided that X follows Uniform (20, 40).
Compute the probability that the shopping time will be between 25 and 30 minutes as follows:
[tex]P(25<X<30)=\int\limits^{30}_{25} {\frac{1}{40-20}} \, dx[/tex]
[tex]=\int\limits^{30}_{25} {\frac{1}{20}} \, dx \\\\=\frac{1}{20}\times [x]^{30}_{25}\\\\=\frac{30-25}{20}\\\\=0.25[/tex]
Thus, the probability that the shopping time will be between 25 and 30 minutes is 0.25.
Describe what the ! means in n!
Answer:
Usually n stands for a (positive) integer. The exclamation point used after an integer usually means “factorial.”
Step-by-step explanation:
Assume the readings on thermometers are normally distributed with a mean of 0 degrees C and a standard deviation of 1.00 degress C. Find the probability that a randomly selected thermometer reads between -2.21 and -1.52 and draw a switch then find the probability.
The standard normal distribution has a cumulative distribution function (probability that the random variable, in this case the temperature, is less than a given number) well-known as erf, and the probability of [tex]T\in[-2.21,-1.52][/tex] is [tex]erf(-1.52)-erf(-2.21)\approx 0.0298109[/tex] (found using WolframAlpha)
Please mark as Brainliest!
SIMPLE GRAPHING EQUATION (CORRECT ANSWER = BRAINLIEST, THANKS, 5 STAR, AND A COMMENT + THE POINTS
Find the value of “b” so that the slope of the line passing through the points A(5, –8) and B(–1, b) is –2.
Answer:
b=4
Step-by-step explanation:
For this question we need to know the formula of slope that is m which is
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
where [tex](x_1,y_1) , (x_2,y_2)[/tex] are the points [tex](5,-8),(-1,b)[/tex] respectively
and hence we have the value of m= -2 which is the slope we simply plug in all the values.
[tex]m=\frac{y_2-y_1}{x_2-x_1}\\\\-2=\frac{b-(-8)}{-1-5} \\\\-2=\frac{b+8}{-6} \\\\12=b+8\\12-8=b\\4=b[/tex]
So the value of b=4
Answer:
b is 4
Step-by-step explanation:
Several steps are required to find this answer. You need to use the information you are given as well as the formula y=mx+b. You are given the slope and one of the coordinates. Plug the information into the formula to find b, which is the constant.
The point given is (5,-8)
The slope given is -2
Plug the x and y into y=mx+b
-8=-2(5)+b
-8=-10+b
-8+10=b
b=2
Now that you have the full equation, y=-2x+2 , you can plug in the x-coordinate of the other coordinate to find the missing y-value.
y=-2(-1)+2
y=2+2
y=4
Therefore, the b you are solving for is 4.
Simplify -|-5+2|
-7
3
7
-3
A survey of all medium- and large-sized corporations showed that of them offer retirement plans to their employees. Let be the proportion in a random sample of such corporations that offer retirement plans to their employees. Find the probability that the value of will be greater than .
Complete Question
The complete question is shown on the first uploaded image
Answer:
a
[tex]P(0.51 < \^ p < 0.61 ) = 0.2587 [/tex]
b
[tex]P(\^ p > 0.71 ) = 0.15165[/tex]
Step-by-step explanation:
From the question we are told that
The population proportion is [tex]p = 0.64[/tex]
The sample size is n = 50
Generally the mean of this sampling distribution is
[tex]\mu_{x} = p = 0.64[/tex]
Generally the standard deviation is mathematically represented as
[tex]\sigma = \sqrt{ \frac{p(1- p )}{n } } [/tex]
=> [tex]\sigma = \sqrt{ \frac{0.64(1- 0.64 )}{ 50} } [/tex]
=> [tex]\sigma = 0.068 [/tex]
Generally the probability that the value of [tex]\^ p[/tex] will be between 0.54 and 0.61 is mathematically represented as
[tex]P(0.51 < \^ p < 0.61 ) = P( \frac{0.5 4 - \mu_{x}}{\sigma } < \frac{\^ p- \mu_{x}}{\sigma } < \frac{0.6 1 - \mu_{x}}{\sigma } )[/tex]
[tex]\frac{\^ p -\mu}{\sigma } = Z (The \ standardized \ value\ of \ \^ p )[/tex]
[tex]P(0.51 < \^ p < 0.61 ) = P( \frac{0.5 4 - 0.64}{0.068 } < Z < \frac{0.6 1 - 0.64}{0.068} )[/tex]
[tex]P(0.51 < \^ p < 0.61 ) = P(-1.470 < Z < -0.4412 )[/tex]
=> [tex]P(0.51 < \^ p < 0.61 ) = P( Z < -0.4412 ) - P(Z < -1.470 ) [/tex]
From the z table the probabilities of ( Z < -0.4412 ) and (Z < -1.912 ) is
[tex]P ( Z < -0.4412 ) = 0.32953 [/tex]
and
[tex]P(Z < -1.470 ) = 0.070781[/tex]
Generally
[tex]P(0.51 < \^ p < 0.61 ) = 0.32953 -0.070781 [/tex]
[tex]P(0.51 < \^ p < 0.61 ) = 0.2587 [/tex]
Generally the probability that the value of [tex]\^ p[/tex] will be greater than 0.71 is mathematically represented as
[tex]P(\^ p > 0.71 ) = P( \frac{\^ p - \mu_{x}}{\sigma} > \frac{0.71 - 0.64 }{ 0.068 } )[/tex]
=> [tex]P(\^ p > 0.71 ) = P( Z > 1.0294 )[/tex]
From the z table the probabilities of ( Z > 1.0294 )
[tex]P( Z > 1.0294 ) = 0.15165[/tex]
So
[tex]P(\^ p > 0.71 ) = 0.15165[/tex]
Add. Write the answer in standard form.
(9 + 5i) + (11 + 21) =
Answer:
45
Step-by-step explanation:
just add them but why is there a I
Answer:
41+5i
Step-by-step explanation:
Combine like terms; 9+11+21.
What is the radius and diameter of the circle!?
Answer:
diameter will be 18
and radiuse will be half of 18
Step-by-step explanation:
−7x+y
3
+7x
3
+6x−3y
3
−2x
3
+3x
Answer:
-7 is less than -2 is less than 3 is equal to 3 is equal to 3 is equal to 3 is equal to 3 is less than 6 is less than 7
Step-by-step explanation:
Match the numbers with the correct label.
Answer:
I'm assuming A is -3/7 B is -0.4 and c is -1/5
Multiple by 10 and 100 8*10
Answer:
800, 8000
Step-by-step explanation:
8*10=80*10=800, 8*10=80*100=8000
Im not exactly sure as to what the question you are asking or what lesson this is from but I hope this helped being the closest and only way I could answer this, terribly sorry if this wasn't the correct solution
For the equation y=5x, identify the:
slope
y-intercept
Answer:
slope = 5; y-intercept = (0,0)
Step-by-step explanation:
Answer:
slope= 5/1
y-intercept=0
Step-by-step explanation:
I hope this helps... if it does, may I be brainliest???
What is the sum?
8+(-12)
O-20
O 4
4
20
Please help I need this right now in 45 min please help please
The answer to this is -4
Owen lives 145.25 km from Houston, Texas. Sharon lives 209.5 km from Houston. What is the difference between these two distances?
Answer:
64.25
Step-by-step explanation:
Subtract 209.5-145.25=64.25
Answer:
64.25
Step-by-step explanation:
145.25 - 209.5 = -64.25, then you find the absolute value
What is the value of x? *
(7x - 15)
(x+28)
(4x - 3)
|4t+n| if t = -2 and n = 5 for algebra 1
Answer:
It would be 13.
Which pair of numbers has a GCF of 8?
8 and 28
16 and 56
32 and 16
40 and 55
Can someone answer this for me fast !!
Answer:
C
PLZ let me know if im wrong
Hello please help I will give brainliest!
Answer:
D
Step-by-step explanation:
justin has 3/4 quart of cranberry juice. If he divides the juice into glasses that hold 1/8 quart, how many glasses can Justin fill
Answer:
6 glasses
Step-by-step explanation:
3/4 = 6/8
01:41:3
What value of x is in the solution set of 8x - 6 > 12 + 2x?
Answer:
x > 3
Step-by-step explanation:
Answer:
x > 3
Step-by-step explanation:
Step 1:
8x - 6 > 12 + 2x Equation
Step 2:
6x - 6 > 12 Subtract 2x on both sides
Step 3:
6x > 18 Add 6 on both sides
Step 4:
x > 18 ÷ 6 Divide 6 on both sides
Answer:
x > 3
Hope This Helps :)
Clarence is 42 inches tall. His brother Charlie is 37 inches tall. How much taller is Clarence?
Answer:
Clarence is 5 inches taller.
42-37=5
Answer:
Clarence is 5 inches taller.
Step-by-step explanation:
You are using subtraction by doing 42-37
42-37 cross out the 4 to be a 3, make the 2 a 12 and subtract 12-7=5
3-3 is 0 so it would be 5.
Bam scored 12 points per game last year. This year he scores 19 points per game. By what percent did his point production change?
Answer:
[tex]\%Change = 58.33\%[/tex]
Step-by-step explanation:
Given
[tex]Initial = 12[/tex]
[tex]Final = 19[/tex]
Required
Determine the percentage change
Percentage change is calculated as thus:
[tex]\%Change = \frac{|FInal - Initial|}{Initial} * 100\%[/tex]
[tex]\%Change = \frac{|19 - 12|}{12} * 100\%[/tex]
[tex]\%Change = \frac{|7|}{12} * 100\%[/tex]
[tex]\%Change = \frac{7}{12} * 100\%[/tex]
[tex]\%Change = \frac{7* 100\%}{12}[/tex]
[tex]\%Change = \frac{700\%}{12}[/tex]
[tex]\%Change = 58.33\%[/tex]
Mrs. Peterson makes ceramic figurines. She recently made 25 figurines. Of those figurines, 16 are animals. What percent of the figurines are NOT animals?
How do I do this? I am so confused...
1. 12
2. 28
3. 44
This is because when you multiply 4. It also increases the number when you multiply 7.
Answer:
Multiply the first numbers by three and then keep multiplying :)
Step-by-step explanation:
A woman wishes to enclose a rectangular garden with fencing, using the side of her garage as one side of the rectangle. A neighbor gave her 2727 feet of fencing, and she wants the length of the garden along the garage to be 66 feet more than the width. What are the dimensions of the garden?
Answer:
Length = [tex]13\ \text{ft}[/tex]
Width = [tex]7\ \text{ft}[/tex]
Step-by-step explanation:
Let
Breadth of the garden = x
According to the question length of the garden = 6+x
Fencing given for the rectangular garden = 27 ft
Perimeter of the garden is given by
[tex]6+x+x+x=27\\\Rightarrow 6+3x=27\\\Rightarrow x=\dfrac{27-6}{3}\\\Rightarrow x=7\ \text{ft}[/tex]
Here the garden's length will be along the garage so fencing will not done there. So length will be added only once in the perimiter.
The length of the garden is [tex]6+7 = 13\ \text{ft}[/tex] and the width is [tex]7\ \text{ft}[/tex].
15.4x7=
Show your work
Answer:
107.8
Step-by-step explanation:
You paint 1/3 of a wall in 1/4 hour. At that rate, how long will it take you to paint one
wall?
Answer:
3/4 of an hour or 45 minutes
Step-by-step explanation:
1/3=1/4 hour
2/3=2/4 hour
3/3=3/4 hour
Pulse rates of women are normally distributed with a mean of 77.5 beats per minute and a standard deviation of 11.6 beats per minute. Answer the following questions. What are the values of the mean and standard deviation after converting all pulse rates of women to z scores using ? nothing nothing The original pulse rates are measure with units of "beats per minute". What are the units of the corresponding z scores? Choose the correct choice below. A. The z scores are measured with units of "minutes per beat." B. The z scores are measured with units of "beats per minute." C. The z scores are measured with units of "beats." D. The z scores are numbers without units of measurement.
Answer:
(1) 0 and 1
(2) Correct option D
Step-by-step explanation:
It is provided that pulse rates of women are normally distributed with a mean of 77.5 beats per minute and a standard deviation of 11.6 beats per minute.
Let X denote the pulse rates of women.
(1)
Let us consider a random variable, X that follows N (µ, σ²), then [tex]Z=\frac{X-\mu}{\sigma}[/tex], is a standard normal variate with mean, E (Z) = 0 and variance V (Z) = 1.
That is, Z follows N (0, 1).
In statistics, a standardized score is the number of standard deviations an observation or data point is from the mean.
Thus, z-scores are a type of standardized scores.
The values of the mean and standard deviation after converting all pulse rates of women to z scores are 0 and 1 respectively.
(2)
The z scores are numbers without units of measurement.
