Answers
Hi there!
For number 13, it’ll be matching 11 and 12 since all of those are an X shape size.
For number 14, it would be just 9.
For number 15, it is 7 and 8 since it is all like a shape of 2 lines.
Number 10 would be number cause it’s not a parallel line, intersecting line, or a perpendicular line.
Related Questions
HELP 100 POINTS ANSWER IT PLEASE
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Answer:
[tex]\boxed{\text{\large $ y=96.1\sqrt{x} $}}[/tex]
Step-by-step explanation:
Using a graphing calculator, plot (x,y) points
x = no. of jobsy = no. of workers neededand plot the functions from the options to know which function fits the data
Answer:
Step-by-step explanation:
Using a graphing calculator, plot (x,y) points
x = no. of jobs
y = no. of workers needed
and plot the functions from the options to know which function fits the data
need help for Geometry
Answers
△CBE ≅△CDE
Congruent statements for corresponding sides :Side BC is congruent to side CD Side EB is congruent to side EDCongruent statements for corresponding angles :angle ECB is congruent to angle ECDangle BEC is congruent to angle DEC60% of a number is 54. what is 50% of the same ?
Answers
Answer:
The answer is 45.
Step-by-step explanation:
60% of a number is 54, find the original number
54 ÷ 60%
= 54 ÷ 60/100
= 54 * 100/60
= 90
50% of 90 is
90 * 50%
= 90 * 50/100
= 90 * 1/2
= 45
The mean diameter of the rim of Honda tires is 16 inches. Assume that the standard deviation of diameter of the rims is 0.3 inches. For quality control purposes, the diameter of the rims of 9 tires is measured every hour. The manager applies the rule that if the mean of diameter of a rim is greater or equal to 16.25, and lesser or equal to 15.75, the manufacturing should be stopped. If the diameter is between 15.75 and 16.25, the manufacturing process is not to be disturbed. a. Calculate the probability of stopping the manufacturing when the sample mean is 16 inches. b. Calculate the probability of stopping the manufacturing in case the mean is shifted to 16.05 inches. c. Calculate the probability of not disturbing the manufacturing if mean shifts to 16.25 inches.
Answers
Answer:
a. 0.0124 = 1.24% probability of stopping the manufacturing when the sample mean is 16 inches.
b. 0.0241 = 2.41% probability of stopping the manufacturing in case the mean is shifted to 16.05 inches.
c. 0.5 = 50% probability of not disturbing the manufacturing if mean shifts to 16.25 inches.
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
Normal probability distribution
When the distribution is normal, we use 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.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
Assume that the standard deviation of diameter of the rims is 0.3 inches. Samples of 9.
This means that [tex]\sigma = 0.3, n = 9, s = \frac{0.3}{\sqrt{9}} = 0.1[/tex]
a. Calculate the probability of stopping the manufacturing when the sample mean is 16 inches.
Here we have [tex]\mu = 16[/tex]
Higher than 16.25:
This is 1 subtracted by the pvalue of Z when X = 16.25. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{16.25 - 16}{0.1}[/tex]
[tex]Z = 2.5[/tex]
[tex]Z = 2.5[/tex] has a pvalue of 0.9938
1 - 0.9938 = 0.0062
Lower than 15.75:
This is the pvalue of Z when X = 15.75. So
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{15.75 - 16}{0.1}[/tex]
[tex]Z = -2.5[/tex]
[tex]Z = -2.5[/tex] has a pvalue of 0.0062
Probability of stopping:
2*0.0062 = 0.0124
0.0124 = 1.24% probability of stopping the manufacturing when the sample mean is 16 inches.
b. Calculate the probability of stopping the manufacturing in case the mean is shifted to 16.05 inches.
Here we have [tex]\mu = 16.05[/tex]
Higher than 16.25:
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{16.25 - 16.05}{0.1}[/tex]
[tex]Z = 2[/tex]
[tex]Z = 2[/tex] has a pvalue of 0.9772
1 - 0.9772 = 0.0228
Lower than 15.75:
This is the pvalue of Z when X = 15.75. So
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{15.75 - 16.05}{0.1}[/tex]
[tex]Z = -3[/tex]
[tex]Z = -3[/tex] has a pvalue of 0.0013
Probability of stopping:
0.0228 + 0.0013 = 0.0241
0.0241 = 2.41% probability of stopping the manufacturing in case the mean is shifted to 16.05 inches.
c. Calculate the probability of not disturbing the manufacturing if mean shifts to 16.25 inches.
Between 16.25 and 15.75 with [tex]\mu = 16.25[/tex]. This is the pvalue of Z when X = 16.25 subtracted by the pvalue of Z when X = 15.75.
X = 16.25
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{16.25 - 16.25}{0.1}[/tex]
[tex]Z = 0[/tex]
[tex]Z = 0[/tex] has a pvalue of 0.5
X = 15.75
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{15.75 - 16.25}{0.1}[/tex]
[tex]Z = -5[/tex]
[tex]Z = -5[/tex] has a pvalue of 0
0.5 - 0 = 0.5
0.5 = 50% probability of not disturbing the manufacturing if mean shifts to 16.25 inches.
HELP ASAP! I’m very confused and need help! Thank you!
Answers
the area of a square plot is 1600m². the side of the plot is
Answers
Answer:
2800m2
12345667888888
Answer:
400m squared
Step-by-step explanation:
so a square has 4 EVEN sides.. 16 divide 4 is 4 just add the zeros..
What is 2/3 divided by 1/6 ( show your work )
Answers
Answer:
4
Step-by-step explanation:
2/3÷1/6
Flip the 1/6 to make it a reciprocal and then multiply
2/3•6/1
simplify by crossing out
2•2 =4
8a. Use the expression 28b - 4c. Part A: Factor the expression using the GCF. *
then answer
8b. Use the expression 28b - 4c. Part B: What is the value of the expression when b = -4 and c = 1? Show your work or explain. *
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28(-4) - 4(1)
-112 - 4
-116
Approximately how many cars are expected to be parked in the lot at 4:00 p.m.?
OA
200 cars
OB.
130 cars
Ос.
75 cars
OD.
15 cars
Answers
==============================================================
Explanation:
4:00 p.m. corresponds to x = 16, since 12+4 = 16
You can think of 4:00 p.m. representing 1600 hours in terms of military time.
Locate 16 on the x axis. Draw a vertical line until this vertical line crosses the blue parabola. Check out the diagram below.
From this point of intersection, draw a horizontal line until you move to the y axis. You should be somewhere between y = 60 and y = 90.
A good guess could be 75 since it is the midpoint of 60 and 90. Algebraically we confirm it as such: (60+90)/2 = 150/2 = 75
To be fair, we may not hit the exact middle and may be at y = 70 instead of y = 75. But I think the midpoint is a good estimate considering we don't have all the information.
Luckily 75 is on the list of choices, and the other choices aren't even close. So choice C is likely the answer.
Decrease $180.28 by 15%
Answers
Answer:
$153.24
Step-by-step explanation:
:/
Sydney needs $450 to buy a TV for her room.she already saved $50. She earns $20 an hour at her job.set up and solve an equation to find how many hours she needs to work to buy the TV.
Answers
-50 -50
20x=400
Divide both sides by 20
X=20
a stadium with 80 rows has 20 seats in the first rows,30 in the second,and so on.how many total seats are in the stadium
Answers
On average the number of electronic keyboards sold in Ohio each year is equivalent to six times the average number sold yearly in Alaska. If, on average, there are 45,972 electronic keyboards sold each year in Ohio, how many are sold in Alaska?
Answers
Answer:
7662 electronic keyboards
Step-by-step explanation:
Given that,
The number of electronic keyboards sold in Ohio each year is equivalent to six times the average number sold yearly in Alaska.
There are 45,972 electronic keyboards sold each year in Ohio.
We need to find how many are sold in Alaska.
Ohio = 6 (Alaska)
[tex]A=\dfrac{45972 }{6}\\\\A=7662[/tex]
So, 7662 electronic keyboards are sold in Alaska.
In the division problem, what does the 8 represent in the quotient 3653÷13=281
A.8 thirteens
B.18 thirteens
C.80 thirteens
D.13 eights
Answers
A study of the career paths of hotel general managers sent questionnaires to an SRS of 250 hotels belonging to major U.S. hotel chains. There were 149 responses. The average time these 149 general managers had spent with their current company was 13.26 years. (Take it as known that the standard deviation of time with the company for all general managers is 4 years.) (a) Find the margin of error for an 85% confidence interval to estimate the mean time a general manager had spent with their current company: years (b) Find the margin of error for a 99% confidence interval to estimate the mean time a general manager had spent with their current company: years (c) In general, increasing the confidence level the margin of error (width) of the confidence interval. (Enter: ''DECREASES'', ''DOES NOT CHANGE'' or ''INCREASES'', without the quotes.)
Answers
Answer:
a) The margin of error is 0.3643 years.
b) The margin of error is 0.6514 years.
c) INCREASES
Step-by-step explanation:
(a) Find the margin of error for an 85% confidence interval to estimate the mean time a general manager had spent with their current company:
We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:
[tex]\alpha = \frac{1 - 0.85}{2} = 0.075[/tex]
Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].
That is z with a pvalue of [tex]1 - 0.075 = 0.925[/tex], so Z = 1.44.
Now, find the margin of error M as such
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.
[tex]M = 1.44\frac{4}{\sqrt{250}} = 0.3643[/tex]
The margin of error is 0.3643 years.
(b) Find the margin of error for a 99% confidence interval to estimate the mean time a general manager had spent with their current company:
[tex]\alpha = \frac{1 - 0.99}{2} = 0.005[/tex]
That is z with a pvalue of [tex]1 - 0.005 = 0.995[/tex], so Z = 2.575
[tex]M = 2.575\frac{4}{\sqrt{250}} = 0.6514[/tex]
The margin of error is 0.6514 years.
(c) In general, increasing the confidence level the margin of error (width) of the confidence interval.
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
Increase of confidence level -> Increases z -> Increases margin of error.
So Increases is the answer.
9(2+2p) show distributive property
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Answer:
9(2+2p)
9 x2 + 9 x 2p
18 +18p
Translate into an expression:
two more than three times
Answers
Answer:
85478
Step-by-step explanation:
PLZ HELP ME FAST !!!
Answers
Answer:
$50
Step-by-step explanation:
Answer:
I know that someone else already answered and got brainliest but I just thought to give some steps to solving because you never know who needs it ;)
The answer is 50 as the person who answered above me said.
Step-by-step explanation:
Now, to get to solving.
20% is equal to 10 dollars.To find out the total you need to reach 100% 5 multiplied by 20 is 100 10 multiplied by 5 is 50 therefore the bill was 50.I hope this will be helpful to somebody and feel free to comment, ask questions, give feedback, and correct my steps if they are not correct!
Have a great day! :)
7/9 z - 18 + 1/3z if z = 27
Answers
Answer:
12
Step-by-step explanation:
7/9 x 27 - 18 + 1/3 x 27
Express 7/9 ×27 as a single fraction.
7 x 27 / 9 - 18 + 1/3 x 27
Multiply 7 and 27 to get 189.
189/9 - 18 + 1/3 x 27
Divide 189 by 9 to get 21.
21 - 18 + 1/3 x 27
Subtract 18 from 21 to get 3.
3 + 1/3 x 27
Multiply 1/3 and 27 to get 27/3.
3 + 27/3
Divide 27 by 3 to get 9.
3+9
Add 3 and 9 to get 12.
12
a weightlifter in florida says that he can bench 300 pounds (which means he can lift 300 pounds) The weightlifter weighs x pounds. Write an equation that can be used to find t , the total weight of both the weightlifter and his weights in pounds.
Answers
Answer:
no
Step-by-step explanation:
he cant lift he's too weak
Use the information given to answer the question.
Consider the number set.
16, 17, 18, 19
Part A
Which value of j in the number set makes the equation 8(i+1) - 2 = 142 true?
O 16
O 17
O 18
O 19
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circumference and area of 7ft
Answers
Area: 38.485 feet
There are half as many pears as grapes. There are fifteen pears.
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Answer:
30 grapes, because there are half as many meaning grapes have twice the amount of the pears present
a sporting goods manufacturer requires 2/5yd of fabrick to a pair of soccer shorts how many shorts can be made from 4yd of fabric
Answers
Answer:
10 pair of soccer shorts.
Step-by-step explanation:
Let the unknown be x.
Translating the word problem into an algebraic equation, we have;
2/5 yard = 1 pair of short
4 yard = x pair of short
Cross-multiplying, we have;
2x/5 = 4
Multiplying both sides by 5, we have;
2x = 20
x = 20/2
x = 10 pair of soccer shorts.
Classify the triangle by its angles and sides.
A acute scalene
B obtuse isosceles
C right scalene
D right isosceles
Answers
Answer:
C
Step-by-step explanation:
This triangle has a right angle so it is right.
It also has three different sides so it is scalene.
C is the answer
A farmer sells 6.4 kilograms of apples and pears at the farmer's market.
2/5 of this weight is apples, and the rest is pears. How many kilograms of pears did she sell at the farmer's market?
I NEED THIS IN fraction and decimal form
Answers
Answer:
If 2/5 are apples, 2/5 x 8.9 kilos = 0.4 x 8.9 = 3.56 kilos of apples
pears = 8.9 - 3.56 = 5.34 kilos
if apples are 2/5, then pears are 3/5. 3/5 x 8.9 = .6 x 8.9 = 5.34 kilos of pears
Activity B (continued from previous page)
3. Consider the system of equations y = -x + 3 and y = 4x+8.
A. Use the substitution method to find the solution
of this system. Show your work to the right.
B. What is the solution of this system? CI
Answers
Answer:
A. (see Step-by-step explanation)
B. (-1, 4)
Step-by-step explanation:
Since both functions are equal to y, we can set them equal to each other.
-x + 3 = 4x + 8
Add the x to both sides (because it is negative on the left) and subtract the 8 from both sides (because it is positive on the right and we need to isolate the variable).
-5 = 5x
Divide both sides by 5 (because it is being multiplied to the x) to isolate x.
x = -1
Next, to solve for y, we can plug in -1 for x in either equation from the beginning.
y = -(-1) + 3
y = 1 + 3
y = 4
what is the largest value you can find in the interval (-5,-1)
Answers
(-5,-1) is aka -5<x<-1
This means -2 is the largest value you can find.
Perhaps that is if you are on a line graph, or if you are putting this on a line graph put an open circle (○) on -1 and -5 and draw a line in between the numbers. That's also if you are talking about real numbers and not integers this question is a bit too broad for me to actually figure out the true answer.
can someone help me?
Answers
Answer:
21
Step-by-step explanation:
R.2.95
Let x = -4 and y= 2. Evaluate the expression.
4|y| -4x
xy|
4171-4x|
If x= - 4 and y= 2, then
|xy|
---
Answers
Answer:
-24 and 8
8 and -8
Step-by-step explanation:
Let x = -4 and y= 2. Evaluate the expression.
1) 4|y| -4x
Note that |y| acan be +y or -y
4|y| -4x
= 4y - 4x
= 4(-4)-4(2)
= -16 - 8
= -24
If |y| is -y we have
4(-y) -4x
= -4y-4x
= -4(-4)-4(2)
= 4|y| -4x16 - 8
= 8
For the expression
|xy|
= xy
= -4(2)
= -8
If |xy| ix negative
= -(xy)
= -(-4*2)
= -(-8)
= 8
Hence the value is 8 and -8