Answer:
10
Step-by-step explanation:
50/10 = 5
THIS IS 7TH GRADE MATH SO ITS EASY
Answer:
b
Step-by-step explanation:
Can someone help me with this question plz.
- Scores on an exam are normally distributed woth a population standard deviation of 5.6. A random sample of 40 scores on the exam has a mean of 32 estimate the population mean with - A) 80% confidence - B) 90% - C) 98%
Answer: i think i got b or c onr of them are correct :)
Step-by-step explanation:
The estimated population mean with
80% confidence = [30.856, 33.135]
90% confidence = [30.543, 33.456]
98% confidence = [29.94, 34.06]
What is confidence interval?For a population with unknown mean and known standard deviation , a confidence interval for the population mean, based on a simple random sample of size n, is [tex]\bar x +_{-}z^{*}\frac{\sigma}{\sqrt{n} }[/tex] , where z* is the upper (1-C)/2 critical value for the standard normal distribution.
Population standard deviation = 5.6
Sample mean = 32
Sample size = 40
Given confidence level = 80%
[tex]z^{*}[/tex] at 80% confidence level = 1.28
Upper confidence interval = 33.135
Lower confidence interval = 30.865
Population mean lies between [30.856, 33.135] at 80% confidence level.
Given confidence level = 90%
[tex]z^{*}[/tex] at 90% confidence level = 1.65
Upper confidence interval =33.456
Lower confidence interval = 30.543
Population mean lies between [30.543, 33.456] at 90% confidence level.
Given confidence level = 98%
[tex]z^{*}[/tex] at 98% confidence level = 1.65
Upper confidence interval = 34.06
Lower confidence interval = 29.94
Population mean lies between [29.94, 34.06] at 98% confidence level.
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On a road trip, london and his friends see 10 cities over 5 days. How many cities Landon and his friends will see in 8 days? Solve using unit rates. HELP ME
Answer:
16 cities
Step-by-step explanation:
if 5days = 10 cities
8days=?
applying cross multiplication :
(8days × ten cities )÷5 day
= 16 cities
Find the missing angle
Answer:
Answer:[tex] \huge\mathfrak\pink{S} \huge\mathfrak\purple{o} \huge\mathfrak\blue{l} \huge\mathfrak\red{u} \huge\mathfrak\green{t} \huge\mathfrak\pink{i}\huge\mathfrak\purple{o}\huge\mathfrak\red{n}\huge\mathfrak\orange{➔}\ [/tex]
80°+20°+missing angle=180°[ sum of interior angle of a triangle is 180°]
missing angle=180°+100=80°
is your answer
Can someone please help me with this ?
PLEASE HELP !! ILL GIVE BRAINLIEST !! 100 POINTS
Answer:
Volume of a cylinder (V) : π x radius ² x height
V = 3.14 x 12² x 13
V = 5878.08 cubic millimeters.
Step-by-step explanation:
BRAINLYIST MOMENT
what is the best consel PS5 or Xbox Series X
Answer:
Xbox Series X
Step-by-step explanation:
It has better games and more to choose from. It also has very good storage. If your looking mainly for graphics pick the Ps5.
Which expressions are equivalent?
Answer:
choice 1) 1/5k - 2/3j and -2/3j + 1/5k
Step-by-step explanation:
Answer:
The first one
Step-by-step explanation:
if you answer all of these you will get a fat brainless. :) pls help
Answer:
1st box- the 3rd option(3215)
2nd box- 3rd option(the one with 5 sides)
3rd box- add 4 and 10
5th box-
700x35= 24,500
900x42= 37,800
6th box-
-[tex]\frac{5}{6}[/tex]
-[tex]\frac{7}{10}[/tex]
7th box-
-divide
-add
-multiply
-subtract
8th box-
6.03$, 6 dollars and 3 cents
9th box- 18 f's
10th box-
1/12, 1/8,1/4,1/3,1/2
Step-by-step explanation:
all i can do rn, sorry.
7x + 10y = 36
Y= 2x + 9
Answer:
(-2,5)
Step-by-step explanation:
Assume a significance level of α=0.01 and use the given information to complete parts (a) and (b) below. Original claim: The mean pulse rate (in beats per minute) of a certain group of adult males is 75 bpm. The hypothesis test results in a P-value of 0.0087. a. State a conclusion about the null hypothesis. (Reject H0 or fail to reject H0.) Choose the correct answer below. A. Reject H0 because the P-value is less than or equal to α. B. Fail to reject H0 because the P-value is less than or equal to α. C. Fail to reject H0 because the P-value is greater than α. D. Reject H0 because the P-value is greater than α.
Answer:
A. Reject H0 because the P-value is less than or equal to α.
Step-by-step explanation:
Decision:
If the pvalue of the test is less than the significance level, we reject the null hypothesis H0.
Otherwise, we fail to reject the null hypothesis H0.
In this question:
Significance level: 0.01
P-value: 0.0087
0.0087 < 0.01, so we reject H0.
The correct answer is given by option A.
Pastisch deposited 50000 at rate 4%
in saving account after 5 years he
withdrew Rs 10000 and total interest
of 5 year How long should he keep
the remaining amount to get total
interest of rs14800 fom the begining
Answer:
Intrest =P*R*T/100
[tex]50000 \times 4 \times 5 \div 100 \\ = 50 \times 5 \times 4 \\ = 250 \times 4 \\ = 1000[/tex]
AMOUNT AFTER 1 YEAR,
=50000 +1000
=51000
HE WITHDREW 10000
SO
51000-10000
41000
[tex]14800 \div 41000 \\ = 0.360[/tex]
Mr. Bruce has some clay with a mass of 24 kilograms. If he puts the same amount of clay into 6 bags, how many grams of clay are in each bag? I NEED THE EXPLANATION
Answer:
4000grams in each bag
Step-by-step explanation:
Assume he put x amount of clay into each bag, he then put 6x into 6 bags.(since the question didn’t mention, I assume he put every clay he has into the bags)
6x=24kg
x=4kg
Since the question is asking for grams not kilograms:
4kg=4000g
You put a $275 plate set on layaway and put down a 25% deposit. What is the balance?
what are the features of the quadratic function f(×) =×2 +10×+21?
A is the correct answer
Or
Vertex = (-5,-4), y-intercept = (0,21), x-intercepts = (-7,0) and (-3,0), axis of
symmetry is x = -5
triangle has side lengths of (9k – 4m) centimeters, (8k + 3n)
centimeters, and (9n – 4m) centimeters. Which expression represents the
perimeter, in centimeters, of the triangle?
O 26kn – 5mn
5n - m + 17k
The perimeter of the triangle is 17k + 13n - 8m
The perimeter of a triangle is the sum of it's 3 sides ;
If the sides are a, b and c.
The perimeter will be :
(a + b + c)
Given the side lengths
(9k - 4m)cm9k - 4m)cm(8k + 3n) cm 9k - 4m)cm(8k + 3n) cm (9n - 4m) cmThe perimeter of the triangle will be :
9k - 4m + 8k + 3n + 9n - 4m
Collect like terms :
9k + 8k +3n + 9n - 4m - 4m
17k + 13n - 8m
Hence, the perimeter of the triangle is 17k + 13n - 8m
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If f(x) = 3x + 5, find f(2).
f(2) = ?
Answer:
[tex]3 \times 2 + 5 = 6 + 5 = 11[/tex]
what is the surface area of this rectangular prism with areas of a width of 8 m , 9 m, 6 m ?
Answer:
340 m²
Step-by-step explanation:
Just multiply each edge of the rectangular prism until you find the surface area of each side then add them together
Please help ggdskdsrjcxseyhcdijb
Answer:
Help
Step-by-step explanation:
I how can I help you?
Select the graph for the solution of the open sentence. Click until the correct graph appears. 2|x| + 1 < 5
Answer:
1st Answer
Step-by-step explanation:
There are 12 cans of soup in a carton. Each can has a
diameter of 8 cm and a height of 9 cm. How much paper, to
the nearest square centimeter, is needed to make labels that
wrap around each of the 12 cans? (Assume there is no
overlap.)
Answer:
The required amount of paper is 2715.23 [tex]cm^{2}[/tex].
Step-by-step explanation:
The cans of soup has a shape of a cylinder, so that;
The surface area around a cylinder = 2[tex]\pi[/tex]rh
Where: r is the radius of the can, and h is its height.
From the given question, diameter = 8 cm, then;
radius = [tex]\frac{diameter}{2}[/tex]
= [tex]\frac{8}{2}[/tex]
r = 4 cm
Surface area around one of the cans = 2 x [tex]\frac{22}{7}[/tex] x 4 x 9
= 226.2857
Surface area around one of the cans = 226.28 [tex]cm^{2}[/tex]
So that, the total amount of paper required to make labels around each of the 12 cans can be determined by:
12 x 226.2857 = 2715.4284
The required amount of paper is 2715.23 [tex]cm^{2}[/tex].
what music shuld i listin to
Answer:
conan gray
Step-by-step explanation:
Answer:
Daisy- Ashnniko & Mr. Perfectly Fine- Taylor Swift
Step-by-step explanation:
Select the correct answer.
Does this matrix have an inverse? Why or why not?
A = [16 - 2)
0
A.
Yes, because its determinant is zero.
a
B.
Yes, because its determinant is greater than zero.
o
C.
No, because its determinant is zero.
o
D.
No, because its determinant is less than zero.
Answer:
c
Step-by-step explanation:
The given matrix has a determinant of zero thus it will not have any inverse.
What is a matrix?matrix, a collection of numbers lined up in rows and columns to produce a rectangular array. The elements of the matrix, also known as the entry, are the numerals.
In another word, a matrix is a set of variables that are arranged in such a good way that we can create an algebraic equation from that.
In computer graphics, where they have been used to describe picture transformations and other alterations, matrices have vital applications as well in many sectors.
Given the matrix
[tex]\begin{bmatrix}16 & -4 \\8 & -2 \end{bmatrix}[/tex]
The determinant of this matrix is 16(-2) - (8)(-4)
⇒-32 + 32 = 0
Since the determinant of the given matrix is zero so there will be no inverse.
Hence "The given matrix has a determinant of zero thus it will not have any inverse".
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A pair of flip flops is $30. How much will they cost after a 20% discount and 6.5% tax?
Answer:
$6.39
Step-by-step explanation
well, 20% of $30 is $6, so then you just have to add on the tax, which is 39 cents, coming to $6.39
Answer:
25.56
Step-by-step explanation:
30 divided by 4 is 6 so 30- 6=24
6.5% of 24=1.56 sooooo 24+1.56=25.56
Which expressions are equivalent to -4(3d-2)-7
Answer:
C, none of the above
Step-by-step explanation:
-4(3d-2) after expression should be -12d+8 and then add -7, so combine like terms would be -12d+1, which is not the choice, so the answer is none of the above.
Answer:
The answer is C (none of the above)!
Step-by-step explanation:
is this correct??????
Answer:
no, I think it's A.
Step-by-step explanation:
PLEASE HELP!!! ILL GIVE BRAINLIEST !! Which is the correct answer ?
Answer:
For sure C (Vertical Angles)
Step-by-step explanation:
They are vertical because they are across from each other.
8 + (8 + 2) + (6 * 2) =
Answer:
Easy
Step-by-step explanation:
So you have 8, then you add the 2 numbers in the parenthesis 8+2 is 10 then you add 6+2 is 8 the you get 18 from 10 plus 8 and then add 8 which is 18+8=26
HOPE THIS HELPED!!!! Have a great day.
Make a circle graph for each set of data.
Top 5 Countries With the Most Post Offices as of 2001
India
144,396
Russia
93,076
China
50,969
United States
39,270
Turkey
28,086
Source: Scholastic Kid’s Almanac
a.
A circle graph. India is about 40 percent; Russia, 30 percent; China, 15 percent; U S, 10 percent; Turkey, 8 percent.
c.
A circle graph. India is about 40 percent; Russia, 15 percent; China, 30 percent; U S, 5 percent; Turkey, 8 percent.
b.
A circle graph. India is about 50 percent; Russia, 15 percent; China, 15 percent; U S, 10 percent; Turkey, 5 percent.
d.
A circle graph. India is about 35 percent; Russia, 30 percent; China, 15 percent; U S, 10 percent; Turkey, 8 percent.
Please select the best answer from the choices provided
A
B
C
D
Answer:
A
Step-by-step explanation:
edge 2021
The correct option is A circle graph. India is about 40 percent; Russia, 30 percent; China, 15 percent; U S, 10 percent; Turkey, 8 percent.
We have given that,
Make a circle graph for each set of data.
Top 5 Countries With the Most Post Offices as of 2001
India 144,396
Russia 93,076
China 50,969
United States 39,270
Turkey 28,086
Source: Scholastic Kid’s Almanac
What is the circle graph?
A circle graph is the intersection graph of a set of chords of a circle. It is an undirected graph whose vertices can be associated.
The correct option is A circle graph. India is about 40 percent; Russia, 30 percent; China, 15 percent; U S, 10 percent; Turkey, 8 percent.
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