Answer:
Lower confidence boundary = 134.525
μ ≥ 134.525
Step-by-step explanation:
From the data:
Sample size, n = 153
Sample mean, xbar = 135.39
Standard deviation, s = 4.59
Zcritical at 99% = 2.33 (one sided)
Confidence interval :
Xbar ± standard Error
Standard Error = Zcritical * s/√n
Standard Error = 2.33 * 4.59/√153 = 0.865
Lower boundary:
Xbar - standard error
135.39 - 0.865 = 134.525
μ ≥ 134.525
We Can be 99% confidence that the true average ultimate tensile strength is atleast 134.525
Subtract the product of 5 and 8 from 50.
HOW DO I WRITE THIS IN A NUMERICAL EXPRESSION?
Answer:
50-(5×8)
Step-by-step explanation:
brainliest please
Anybody know the answer to this problem be correct
Answer:
28 out of 40
2(20 - x)/40 for x questions wrong
Step-by-step explanation:
total points: 40
total Qs: 20
20-6 = 14
14/20 = 28/40
28
Diana is painting statues. She has 7/8 of a liter of paint remaining. Each statue requires 1/20 liter of paint. How many statues can she paint?
Answer:
she can paint 17 statues (with some paint left,but not enough for another statue)
Step-by-step explanation:
7/8 divided into 1/20
is the same as 7/8 multiplied by 20/1
7/8 x 20/1 = 140/8 = 17.5
HELP FAST PLEASE WILL MARK BRANLIIST help with all 3 please
Answer:
See below
Step-by-step explanation:
5. 3x^2 y
6. x
7. 5y^2 b^2
You can factor, getting these answers shown above
Hope this Helps!
The hypotenuse of a right triangle has length 15 and one leg has length 5. The length of the other leg is
Answer:
15.81
Step-by-step explanation:
c=a^2+b^2=5^2+15^2≈ 15.81139
The point Q(0, -1) is translated 6 units up. What are the coordinates of the resulting point, Q′?
Answer:
Q' (0,5)
Step-by-step explanation:
We know that original point Q is (0, -1), we are then told that it has been translated 6 units up. With being asked what is the new point coordinates, or Q'.
To solve, first we need to know what axis belongs to what.
X is left and right
Y is up and down.
Since we know that Q' is 6 units higher than Q, we need to increase the value in the y axis. (x,y)
-1 + 6
5
Therefore the coordinates to Q' is (0,5)
Answer:
(0,5)
Step-by-step explanation:
I can help
(x, y) is the order.
X is horizontal
y is vertical
If you move up 6 from -1, it goes
0 1 2 3 4 5
Therefore you will get (0,5)
I hope I help and made it simple fro you to understand.
Can I please have brainliest?
Use the table to work out the values of a, b, c, and d.
20
= 22 + 3
2
_3
2
2
a
1
b
0
-2
1
2
2
с
3
d
a =
b =
с
= d
Step-by-step explanation:
what is the answer ?
640
240
300
and 320
Step-by-step explanation:
10±10±30±30=80
8round = 80×8=640
don't forget me to followJames has 16 more game cards than Fay. If they have 48 game
cards altogether, find the number of game cards James has.
Answer:
James has 32 game cards
Step-by-step explanation:
X=Fay
x+16=James
X(Fay) + (x+16) James =48
x+x+16=48
2x=32
x=16 Fay
x+16 James
16 + 16=32 James
check answer:
16 Fay + 32 James =48
16+32=48
48=48
What's the difference in the range of temperatures recorded last year and the range of temperatures recorded two years ago?
Answer:
0°C
No Modal
Step-by-step explanation:
The range of a set is calculated by subtracting the max value by the lowest value in the set. Which using the data provided would be the following
range Last Year: 19 - 9 = 10
range 2 years ago: 17 - 7 = 10
Since we see that the range for both sets is 10 degrees then the difference is 0 degrees.
There is no modal temperature last year since no same temperature has appeared more than once.
What is the image point of (1,8) after a translation right 1 unit and up 5 units?
(And lease if you don't know the answer or send me one of those bitly links don't answer.)
Answer:
(2,13)
Step-by-step explanation:
What is the area of this figure?
Answer:
[tex] 220.5 \: {yd}^{2} [/tex]
Step-by-step explanation:
Area of the figure = Area of the arc with radius 10 yd and central angle 90° + Area of rectangle with dimensions (10 + 5 - 3 = 12) 12 yd and (7 + 6 - 4 = 9) 9 yd + Area of square with dimension 4yd + Area of rectangle with dimensions 3 yd by 2 yd + Area of triangle with base 3 yd and height (5 + 3 = 8) 8 yd.
[tex] = \frac{90 \degree}{360 \degree} \times 3.14 {(10)}^{2} + 12 \times 9 + {4}^{2} \\ + 3 \times 2 + \frac{1}{2} \times 3 \times 8 \\ \\ = \frac{1}{4} \times 314 + 108 + 16 + 6 + 12 \\ \\ = 78.5 + 142 \\ \\ = 220.5 \: {yd}^{2} [/tex]
A student plays a total of 20 rounds of Rock Paper Scissors. He wins 75% of them. How many rounds did he win?
Answer:
i think he won 15 of 0 rounds
Step-by-step explanation:
i just divided
Plssss helppp with part B
Answer:
12:7
Step-by-step explanation:
From the diagram shown;
QS/PS = RT/PT
QS/PS = RT/PS+ST
QS/14 = RT/14+10
QS/14 = RT/24
14RT = 24QS
RT/QS = 24/14
RT/QS = 12/7
Hence the required ratio is 12:7
Record the data in a table with the rows representing the type of music and the columns representing the weeks.
What number does element a12 represent?
90
100
150
200
Answer:
150
Step-by-step explanation:
The element a₁₂ represents the first row and second column which is 100. Then the correct option is B.
What is a histogram?A diagram is made up of rectangles whose size is related to a variable's frequency and whose width is comparable to the training sample.
A matrix is a specific arrangement of items, particularly numbers. A matrix is a row-and-column mathematical structure. The a_{ij} element in a matrix, such as M, refers to the i-th row and j-th column element.
Record the data in a table with the rows representing the week and the columns representing the type of music.
The element a₁₂ represents the first row and second column which is 100. Then the correct option is B.
More about the histogram link is given below.
https://brainly.com/question/16819077
#SPJ2
I need help again I don’t understand this
Answer:
i'm not too sure about the other ones but i know that 2^5 (the third choice) is an answer
Answer:
I think the answer would be the third choice
ILL GIVE BRAINLEST Determine whether the two angles in each figure are complementary, supplementary, or neither
Answer:
Step-by-step explanation:
If the sum of two angles = 180°
Then the pair of angles will be supplementary.
If the sum of two angles = 90°
Then the pair of angles will be complementary.
Sum of angles having measures 98° and 82° = 98° + 82°
= 180°
Therefore, both the angles will be supplementary.
Sum of angles having measures 134° and 36° = 134° + 36°
= 170°
Therefore, these angles are neither supplementary nor complementary.
So the answer is NEITHER.
plz help I don't understand this
Answer:
A and B tbh
Step-by-step explanation: there is only 5 prime numbers in 12 and A and B are 6 and 6 a ratio of 6:6
Thus both A and B will be right unless you can pick multiple its A and B
If f(x) = x2, g(x) = 5x, and h(x) = x + 4, find each value. 17. g[h(–2)]
a. 7 b. 10 c. 30 d. 100
Answer:d
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
There was a total of 184 teachers and students at an archery lesson.
3/4
of the teachers is equal to of the students.
2/5
How many teachers were there at the archery lesson?
Which of the following is equivalent to 7(2x+1)-2(6x+3)=15
2x+4=15
-2x+13=15
-2x+4=15
2x+1=15
Answer:
2x + 1 = 15
Step-by-step explanation:
Answer:
D or 2x+1
Step-by-step explanation:
first we have to distribute the 7 to the 2x+1
14x+7-2(6x+3)=15
now distribute the -2
14x+7-12x-6=15
combine like terms on the left side
2x+1=15
your answer would be D
hope this helps!
heartbreak anniversary
Answer:
Please include a picture or question of it please if you want someone to answer it.
Select the statement that is FALSE. The range is never greater than the greatest value of a data set. The interquartile range is the difference between the highest and lowest values in the middle of a data set. The range is the difference between the largest and smallest values of a data set. The mean is never greater than the greatest value of a data set.
Answer:
The interquartile range is the difference between the highest and lowest values in the middle of a data set.
Step-by-step explanation:
The range is the difference between the maximum and minimum value, hence, it cannot be greater than the maximum value, which is the greatest value in a dataset, the highest value a range could have being equal to the maximum value when the minimum vlaue of the dataset is equal to 0.
The mean is the average value of a dataset, hence, it cannot be greater than the maximum value.
The interquartile range is the middle 50% or half of a dataset and not the difference between the highest and lowest middle values in the middle. It is obtained by taking the difference of the upper and lower QUARTILE.
This is the other question but also you can use the letters that’s on the right side !!
Answer:
Chrome and camera. 1000 mistakes
Step-by-step explanation:
bvggifui good go you uuuu to yyytyyyyggyhgghhhghhhhhhhhhbbhvvvdf uh oh utgggy
ion: The mean annual tuition and fees in the 2013-2014 academic year for a sample of 13 private colleges in California was $38,000 with a standard deviation of $7900. A dotplot shows that it is reasonable to assume that the population is approximately normal. Can you conclude that the mean tuition and fees for private institutions in California is greater than $35,000? Use the =α0.01 level of significance and the critical value method with t
Answer:
The pvalue of the test is of 0.0979 > 0.01, which means that we cannot conclude that the mean tuition and fees for private institutions in California is greater than $35,000.
Step-by-step explanation:
Test if the mean tuition and fees for private institutions in California is greater than $35,000.
This means that at the null hypothesis we test if the fee is of $35,000 or less, that is:
[tex]H_0: \mu \leq 35000[/tex]
And at the alternate hypothesis, we test if it is more than this value, that is:
[tex]H_a: \mu > 35000[/tex]
The test statistic is:
As we have the standard deviation of the sample, the t-distribution is used.
[tex]t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, s is the standard deviation and n is the size of the sample.
35000 is tested at the null hypothesis:
This means that [tex]\mu = 35000[/tex]
The mean annual tuition and fees in the 2013-2014 academic year for a sample of 13 private colleges in California was $38,000 with a standard deviation of $7900.
This means that [tex]n = 13, X = 38000, s = 7900[/tex]
Value of the test-statistic:
[tex]t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}[/tex]
[tex]t = \frac{38000 - 35000}{\frac{7900}{\sqrt{13}}}[/tex]
[tex]t = 1.37[/tex]
Pvalue of the test and decision:
The pvalue of the test is the probability of finding a mean above 38000, which is the pvalue of t = 1.37, with 13 - 1 = 12 degrees of freedom, using a one-tailed test.
With the help of a calculator, this pvalue is of 0.0979.
The pvalue of the test is of 0.0979 > 0.01, which means that we cannot conclude that the mean tuition and fees for private institutions in California is greater than $35,000.
1.5r – 3r + 8r + 2.5r
Answer:
9r
Step-by-step explanation:
Between two friends
disbeliever, in ghost
the one a believer and other
tories
Answer:
Mean girls or Clueless
Step-by-step explanation:
What is the perimeter of the rectangle? 7cm 7cm 5cm 5cm
O 22 centimeters
O 24 centimeters
O 26 centimeters
O 28 centimeters
Answer:
24 centimeters
Step-by-step explanation:
7 + 7 + 5 + 5 = 24
have a nice day :)
∠A is an acute angle in a right triangle.
Given that cos A=15/17, what is the ratio for sin A?
cosine = adjacent / hypotenuse
So that means the adjacent side = 15 and the hypotenuse = 17
By Pythagorean Theorem, we know that
opposite^2 = hypotenuse^2 - adjacent^2
opposite^2 = 17^2 - 15^2
opposite^2 = 289 - 225
opposite^2 = 64
opposite side = 8
sine = opposite / hypotenuse
So,
sine A = 8 / 17
The ratio of the results of the local football team games won drawn and lost his 18 6 24 simplest this ratio
Answer:
3:1:4
Step-by-step explanation:
So the ratio is 18:6:24
To simplify it you divide all the numbers by 6 ( the highest common factor )
It then becomes 3:1:4
HOPE THIS HELPED