Answer:
A
Step-by-step explanation:
A range of y<0 means the graph will be completely under the x-axis.
Dividing (8-x³) by (2-x), the quotient is _
Step-by-step explanation:
........hopr it helpsssssss
6x = 2y - 7 what is the terms
Answer:
y = 3x+7/2, and x = (2y-7)/6
Step-by-step explanation:
In the continental United States, the ratio of states that border an ocean to states that do not border an ocean is 7:9. How many of the states border an
ocean?
Worth 25 points
Answer:
23
Step-by-step explanation:
Crazy fact: Wanna know something about M&M's the candy
you could do damage to your dental health. You'll also increase your chances of developing chronic conditions like diabetes or hypertension
Answer:
well m&m are not even that good any way
help plzzzzzz!!!!!!!
22. Valerie is using the formula C = 1.5q + 6 to calculate the total cost, C, in dollars to make a floral arrangement. If $36 is the total cost of making each floral arrangement, what is q?
Answer:
q=20
Step-by-step explanation:
Motorola used the normal distribution to determine the probability of defects and the number of defects expected in a production process. Assume a production process produces items with a mean weight of 10 ounces. (a) The process standard deviation is 0.15, and the process control is set at plus or minus one standard deviation. Units with weights less than 9.85 or greater than 10.15 ounces will be classified as defects. (Round your answer to the nearest integer.) Calculate the probability of a defect. (Round your answer to four decimal places.) Calculate the expected number of defects for a 1,000-unit production run. (Round your answer to the nearest integer.) defects (b) Through process design improvements, the process standard deviation can be reduced to 0.05. Assume the process control remains the same, with weights less than 9.85 or greater than 10.15 ounces being classified as defects. Calculate the probability of a defect. (Round your answer to four decimal places.) Calculate the expected number of defects for a 1,000-unit production run. (Round your answer to the nearest integer.) defects (c) What is the advantage of reducing process variation, thereby causing process control limits to be at a greater number of standard deviations from the mean
Answer:
a) 0.3174 = 31.74% probability of a defect. The number of defects for a 1,000-unit production run is 317.
b) 0.0026 = 0.26% probability of a defect. The expected number of defects for a 1,000-unit production run is 26.
c) Less variation means that the values are closer to the mean, and farther from the limits, which means that more pieces will be within specifications.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Assume a production process produces items with a mean weight of 10 ounces.
This means that [tex]\mu = 10[/tex].
Question a:
Process standard deviation of 0.15 means that [tex]\sigma = 0.15[/tex]
Calculate the probability of a defect.
Less than 9.85 or more than 10.15. Since they are the same distance from the mean, these probabilities is the same, which means that we find 1 and multiply the result by 2.
Probability of less than 9.85.
pvalue of Z when X = 9.85. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{9.85 - 10}{0.15}[/tex]
[tex]Z = -1[/tex]
[tex]Z = -1[/tex] has a pvalue of 0.1587
2*0.1587 = 0.3174
0.3174 = 31.74% probability of a defect.
Calculate the expected number of defects for a 1,000-unit production run.
Multiplication of 1000 by the probability of a defect.
1000*0.3174 = 317.4
Rounding to the nearest integer,
The number of defects for a 1,000-unit production run is 317.
Question b:
Now we have that [tex]\sigma = 0.05[/tex]
Probability of a defect:
Same logic as question a.
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{9.85 - 10}{0.05}[/tex]
[tex]Z = -3[/tex]
[tex]Z = -3[/tex] has a pvalue of 0.0013
2*0.0013 = 0.0026
0.0026 = 0.26% probability of a defect.
Expected number of defects:
1000*0.0026 = 26
The expected number of defects for a 1,000-unit production run is 26.
(c) What is the advantage of reducing process variation, thereby causing process control limits to be at a greater number of standard deviations from the mean?
Less variation means that the values are closer to the mean, and farther from the limits, which means that more pieces will be within specifications.
If the short diagonal of a quadrilateral bisects the long diagonal, then the quadrilateral is a kite.
A. Always
B. Sometimes
C. Never
round 36.439 to the nearest 10
Answer:40
Step-by-step explanation:
Answer:
36.4 is the answer36.4 is the answerStep-by-step explanation:36.4 is the answerStep-by-step explanation:Hope this is helpfullSue power walks 3 km/hourr faster than Tim. In the time it takes Tim to walk 7.5 km, Sue walks 12 km. What is Sue's walking speed?
I hope I'm right mark me brainiest if a am or be nice even if I'm wrong lol she walks 4km/hour.
Fourteen percent of the town’s population are above the age of 65. If there are about
320 residents over the age of 65, then what is the town’s population?
Answer: 2285
Step-by-step explanation:
320 ÷ 14% = 2285
Find the product. Simplify, if needed. 3/8×5/6
Answer:
[tex]\frac{5}{16}[/tex]
Step-by-step explanation:
When multiplying fractions, we can multiply them straight across.
[tex]\frac{3}{8}[/tex]×[tex]\frac{5}{6}[/tex]
[tex]\frac{15}{48}[/tex]
15 and 48 have a common factor, which is 3, so we can divide the numerator and denominator by 3 to simplify.
[tex]\frac{5}{16}[/tex]
ayuda plis es para hoy
what is simplify 4- (-7)+(-2)
Answer:
4+7-2
=11-2
=9
Step-by-step explanation:
Plz answer as soon as possible!
I can sell 25 cookies for $42.50. Write an equation relating the total cost, c, to the number of cookies, n.
Answer:
25n = 42.50cExplanation:
25 cookie sells for $42.50. Therefore, you need to add the variable n for the number of cookies on one side. Thus, $42.50 is worth 25 cookies, so you would add c for the cost on the other side, and you get 25n = 42.50c.
Which number line shows the solution to 1/4x + 1 < 5?
Answer:
x < 16, the third option.
Step-by-step explanation:
1/4x + 1 < 5
1/4x < 4
x < 16
Answer: If you didn't understand the other answer its the number line that has 16 and back or as you can say number 1 Hope this helps!!
Step-by-step explanation:
Does the relationship between the number of calories and the sodium content in a hot dog appear to be a positive or negative relationship?
Answer:
It is a positive relationship
The sum of 1 2 and 1 5 is between 1 2 and 1. YES OR NO?
Answer:
No
Step-by-step explanation:
because the sum 12+15= 27
and 27 not come between 12 & 1
If Mary inspects every sixth calculator and Nancy inspects every fifth calculator, which calculator will be the first that they both inspect
Answer:
30th calculator
Step-by-step explanation:
The least common multiple of 6 calculators and 5 calculators is the calculator they both inspect
LCM of 6 and 5 = 30
30th calculator
3.Jorge has a square poster that measures 15 centimeters on a side. What is the perimeter of the poster in centimeters?
Answer:
15x4
Step-by-step explanation:
just do 15x4 to get your answer
how do I solve this math question?
Answer:
[tex] - \frac{sec^{2}x }{2 \tan (\frac{3}{2} ) x} [/tex]
Step-by-step explanation:
use chain rule on
[tex] \frac{d}{dx} \frac{1}{ \sqrt{ \tan\: (x)} } [/tex]
Let u = tan x.
Use power rule
[tex] \frac{d}{du} {u}^{n} = nu ^{n - 1} [/tex]
[tex] - \frac{1}{2 \tan( \frac{3}{2}x ) } ( \frac{d}{dx} \tan \: (x) )[/tex]
Use Trigonometric Differentiation: the derivative of tan x is sec² x.
[tex] - \frac{ \sec^{2} x}{2 \tan( \frac{3}{2} ) x} [/tex]
which of the following systems of linear equations has no solution?
Answer:
C?
Step-by-step explanation:
Because there is no x I think.
Can I get help with this???
Answer:
168
[tex]3 \times 4 \times 10 + 3 \times 4 \times 4[/tex]
A company that manufacturers deep freezers has developed a new formula of refrigerant, the substance used to cause cooling in refrigerators and freezers. To determine if freezers using the new formula of refrigerant are more efficient than those using the company's original formula, they conducted an experiment with two identical freezers. The first freezer was cooled using the new formula, and the second freezer was cooled using the original formula. A gallon of water was placed in each freezer, and they measured the time required for the water to turn to ice. Match the terms with the correct descriptions in the context of this scenario.
The answer to your question is :
Explanatory variable <--------> The first freezer
Response variable <---> The time required for the water to turn into ice in each freezer
control group <------------------> The second freezer
An Explanatory variable in an experiment is the variable that has been changed/manipulated by the researcher for the purpose of the experiment/research it is an independent variable ( as seen in first freezer )
A Response variable is the outcome of an experiment that serves as an evidence of the effect of the explanatory variable. it is a dependent variable
The control group is the made up of the refrigerators whom are not cooled using the new formula of refrigerant ( i.e. the second freezer )
hence the explanatory variable is the first freezer, the response variable is the time required for the water to turn into ice in each freezer, while the control group is the second freezer.
learn more : https://brainly.com/question/16601895
Answer:
Good luck to whoever figures out the last one.
Step-by-step explanation:
What is the volume of this prism?
Answer:
The answer is 13 1/8ft3
Explanation:
Substitute into the formula:
Volume = 3 1/2 x 2 1/2 x 1 1/2
= 7/2 x 5/2 x 3/2
= 105/8
= 13 1/8 ft3
Plz help it’s due in 5 min...
Which table represents a direct proportion between the number of tickets sold and the total cost?
Answer:
The answer is D
Step-by-step explanation:
y=kx
9=k
Plug it in they are all true.
The table represents a direct proportion between the number of tickets sold and the total cost will be D.
What is a linear equation?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
The slope of the line is given as,
m = (y₂ - y₁) / (x₂ - x₁)
For the linear relationship, the slope will remain constant.
Let's check all the options, then we have
A. The slope is given as,
m = (2 - 0) / (1 - 0) = (4 - 2) / (3 - 1)
m = 2 ≠ 1
B. The slope is given as,
m = (4 - 0) / (2 - 0) = (6 - 4) / (4 - 2)
m = 2 ≠ 1
C. The slope is given as,
m = (7 - 5) / (2 - 1) = (9 - 7) / (3 - 2) = (11 - 9) / (4 - 3)
m = 2 = 2 = 2
The y-intercept is 3.
D. The slope is given as,
m = (18 - 9) / (2 - 1) = (27 - 18) / (3 - 2) = (36 - 27) / (4 - 3)
m = 9 = 9 = 9
The y-intercept is zero.
The table addresses an immediate extent between the number of tickets sold and the all-out cost will be D.
More about the linear equation link is given below.
https://brainly.com/question/11897796
#SPJ2
A pharmaceutical company is developing a new oral medication for the treatment of psoriasis, a skin disease marked by red, itchy, scaly, patches. Describe how you could design a controlled experiment to test the effect of the medication. How could you keep participants from knowing whether or not they were in the treatment group?
Let's say we had a sample of 100 people. We'll split them into two equal groups of 50 each. The two groups will be the treatment and control groups. The treatment group, aka experimental group, is where the actual drug is given. The control group is where the fake drug is given. People in the control group must not know the pill is fake. For more info, check out the placebo effect. In short, this is when a person takes a fake pill and thinks they get better, and that positive mentality helps them actually get better.
If both the treatment and control groups improve (on average) together, then that means the fake pill is just as good as the real thing. Consequently, it means the real pill isn't effective at all. If on the other hand the experimental group does better overall compared to the control group, then we can see that the real pill is doing what it's intended to do. Of course, there are a lot of complicated factors involved, as there is with anything dealing with medicine. I haven't mentioned anything about side effects or things of that nature. In this simplified viewpoint of the world, we're only considering the one factor of whether or not the drug clears up the psoriasis on the skin.
To make things fair, it's best to randomly generate numbers so that you randomly assign people into each group. That way you have representative samples. Also, when drawing the sample of 100 people, make sure that's as random as possible to help represent the population as best as possible. The fact that the people in the control group not knowing that they are taking the fake pill means we have a single blind experiment. A double blind experiment is when even the researchers are not sure who is taking the real pill vs the fake pill. Double blind experiments are encouraged to prevent the researcher's bias from affecting the results.
To keep participants from knowing whether or not they are in the control group, the common solution is to provide a sugar pill. The pill will not cause any side effects and will not cause any improvements to health. It's simply sugar. To the participant, it seems like the real thing since they can't taste the difference or detect anything seems different.
Answer:
Randomly select a sample of people with psoriasis. Randomly assign them to one of two groups. Give one group the treatment, and withhold it from the other group. Give both groups similar looking pills, so neither knows which group they are in.
Please help! It’s worth 30 points!
Answer:
Step-by-step explanation:
Answer:
0.430
Step-by-step explanation:
thank you so much i really appreciate
Xander went on a road trip with some friends. He recorded the following information on their way to their destination
.
The trip took 2 hours
5 gallons of gas were used
The price of gas was $4.00 per
gallon
The car they took gets 28 miles per
gallon
Xander's average speed was 70
miles per hour
How far away was their destination?
Answer: 140
Step-by-step explanation: