Answer:
Reducir la parte fraccional
1
4
.
6
1
4
Convertir el número mixto
6
1
4
primero a una fracción impropia, multiplicando el denominador
(
4
)
por la parte entera del número
(
6
)
y sumando el numerador
(
1
)
para obtener el nuevo numerador. Ubicar el nuevo numerador
(
25
)
sobre el antiguo denominador
(
4
)
.
25
4
El resultado se puede mostrar en múltiples formas.
Forma exacta:
25
4
Forma decimal:
6,25
Forma numérica mixta:
6
1
4
i need help with this down below
Answer:
hi the answer is elven twelths or 11/12
Step-by-step explanation:
first you multiply 1/8 x 2/3 which is 1/12 +5/6= 11/ 12. because you cant simplify it anymore
hope this help
The side lengths of the base of a triangular prism are 6cm, 9 cm, and 11 cm. The height of the prism is 17.5 cm. What is the lateral surface area of the prism square centimeters?
Answer:
455cm2
Step-by-step explanation:
Lateral suface area=Pb*h
26*17.5=455 cm2
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
==============================================================
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.
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|
---
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
A recipe that serves 4 people requires 4 1/2 cup of flour.Suppose you need to make enough to serve 4 people. How many cups of flour do you need?
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
Juan and his sister collected 108 shells while at the beach. Of the shells they collected, 79 were white. Write and solve an equation that can be used to find how many white shells Juan and his sister collected.
Answer:
108-79=29
Step-by-step explanation:
Answer:
it literally says that 79 of dem were white lol
Step-by-step explanation:
Find the area of the figure 14m 5m 16m 2m
Answer:
Where is the figure?
Step-by-step explanation:
7/9 z - 18 + 1/3z if z = 27
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
Find the missing side lengths. Leave your answers as radicals in simplest form
30°
X
10V3
y
Answer:
x=20
y=10
Step-by-step explanation:
so as you can see this is a 30-60-90 triangle this means that y is opposite the 30 degree angle so it is 10 root three divided by root three so it is ten and x is 2y=20
Given the following diagram, find the missing measure.
?
m_2 = 50", m 3 = 100°,m _4 =
30
o 50
O 100
o 150
Answer:
m∡4 = 150°
Step-by-step explanation:
m∡1 = 30° because there are 180° in a Δ
m∡4 = 150° because angles 1 and 4 form a linear pair and must add up to 180°
Answer:
answer 180⁰
Step by Step explanation:
All angles in a triangle add up to 180.
1) add up the angles that are already given to you.
50⁰ +100⁰=150⁰.
2)Then take that away from 180⁰. which leaves you with 30⁰
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.
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.
Write the solution that can be read from the simplex tableau below.
1 2 3 1 2 z
2 3 0 -1 4 0 l 16
0 2 1 8 2 0 l 10
---------------------------------l-------
0 12 0 1 6 2 l 24
Answer:
Step-by-step explanation:
m∠FDC=124°; m∠EAB=2x, m∠ACG=4x. Find: x, m∠ACD
Answer:
x=28 degrees
Step-by-step explanation:
4x = 28*4 = 112
180 degrees - 112 = 68
ACD = 68
In a children’s book, the mean word length is 3.6 letters with a standard deviation of 2.1 letters. In a novel aimed at teenagers, the mean word length is 4.4 letters with a standard deviation of 2.4 letters. Both distributions of word length are unimodal and skewed to the right. Independent random samples of 40 words are selected from each book. Let xC represent the sample mean word length in the children’s book and let xT represent the sample mean word length in the teen novel.
Find the mean of the sampling distribution of xC-xT
Calculate and interpret the standard deviation of the sampling distribution. Verify that the 10% condition is met.
Justify that the shape of the sampling distribution is approximately Normal.
What is the probability that the sample mean word length is greater in the sample from the children’s book than in the sample from the teen novel?
Answer:
Find the mean of the sampling distribution of xC-xT
Calculate and interpret the standard deviation of the sampling distribution. Verify that the 10% condition is met.
Justify that the shape of the sampling distribution
Step-by-step explanation:
2.4 letters. Both distributions of word length are unimodal and skewed to the right. Independent random samples of 40 words
PLZ HELP ME FAST !!!
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! :)
Find the value of x in the following parallelogram: 3 5x - 6 3x-2 x = [?] Enter
Answer:
66
Step-by-step explanation:
Answer: x=2
Step-by-step explanation:
9(2+2p) show distributive property
Answer:
9(2+2p)
9 x2 + 9 x 2p
18 +18p
Help me pls pls pls pls
Answer:
greater than or equal
Step-by-step explanation:
Regine bought fruit for her family. She bought 3 ½ pounds of oranges and 4 ¾ pounds of peaches. If she used all but 1 ⅜ pounds of fruit to make a fruit salad, how much fruit was in the salad? Pls help its litterally 5th Grade math just helping my lil sis!
Answer:
6 7/8
Step-by-step explanation:
total fruit=8 1/4 lbs. subtract 2 3/8. 8 1/4 or 7 10/8 - 1 3/8 = 6 7/8
Amelia had 23 sea shells. Then, she collected 10 more sea shells. After that, she gave S sea shells to her little sister. Which of the following shows how many sea shells she has currently?
Answer:
Step-by-step explanation:
23+10-S = 33-S
There are half as many pears as grapes. There are fifteen pears.
Answer:
30 grapes, because there are half as many meaning grapes have twice the amount of the pears present
Help help this is 10 points
Answer:
The anwser you are looking for is number 2
Step-by-step explanation:
Select all the equations where y=10y=10y, equal, 10 is a solution.
Answer:
e. po sna makatulong pa heart nalang po salamat
Answer:
Its B and C
Step-by-step explanation:
they both just make sense. And i got the answer right..
Dillon studied 3 6/7 hours for his English test. He studied 5 3/14 hours for his math test. How much longer did he study for his math test? (Simplify the answer and write it as a mixed number.)
Answer:
[tex]1 \frac{5}{14}[/tex], [tex]\frac{19}{14}[/tex]
Step-by-step explanation:
How much longer did he study for his math test?
[tex]E=3\frac{6}{7}[/tex]
[tex]M=5\frac{3}{14}[/tex]
[tex]x=difference[/tex]
An equation for this would resemble this:
[tex]M- E=x[/tex]
Now before we get into any equation solving let's get the denominators equal to each other. we can do this by multiplying the numerator and denominator by 2. [tex]\frac{6(2)}{7(2)}=\frac{12}{14}[/tex]
Now we can solve the equation:
[tex]5\frac{3}{14} - 3\frac{12}{14} =\frac{19}{14}[/tex]
[tex]1 \frac{5}{14}[/tex], as a mixed number
plz mark me brainliest. :0
Express the set x > 4 using interval notation.
Answer:
notation is the number 4
If the measure of ∠1=105°
, what is the measure of ∠6
?
Answer:
<6=<1=105(being vertically opposite angle )(actually 105° is answer)
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.)
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.
what is the segment AB please help 20 points!!!
Answer:
10
Step-by-step explanation:
the formula you use to find the distance between two points is
square root of (x1-x2)^2+(y1-y2)^2
circumference and area of 7ft