Answer:
(B). 90 degree
Step-by-step explanation:
it's not a or c or D it's only B
Suppose that 65\ee, percent of the 310{,}000310,000310, comma, 000 citizens in a county are registered to vote. A not-for-profit organization takes an SRS of 100100100 of these citizens and finds that 67\gg, percent of those sampled are registered to vote. The organization plans on taking repeated samples like this. What are the mean and standard deviation of the sampling distribution of the proportion of citizens who are registered to vote
Answer:
mean= 0.65
standard deviation=[tex]\sqrt{\frac{0.65(0.35)}{100}[/tex]
Step-by-step explanation:
The mean of the sampling distribution is 0.65 and the standard deviation is approximately 0.004779.
What is the standard deviation?The standard deviation mathematical and statistical analysis tool used to explain the diversity of treatments or values around the Mean is the standard deviation, which is also known as the square root of variance.
The mean of the sampling distribution of the proportion of citizens who are registered to vote is equal to the proportion of all citizens who are registered to vote, which is 65% = 0.65.
The standard deviation of the sampling distribution is equal to the standard error of the proportion, which can be calculated as follows:
standard error = √((65% × 35%) / 100)
= √((0.65 × 0.35) / 100)
= √(0.0227 / 100)
= √(0.0000227)
= 0.004779
Therefore, the standard deviation is approximately 0.004779.
Learn more about the standard deviation here:
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library 3.5x250
[tex]3.5 \times 500 = [/tex]
5) A book is sold at $152.50 and a discount of 9% is given for students.
Find the cost of the book.
13
Answer:
$138.78
Step-by-step explanation:
152.50 decrease 9% =
152.50 × (1 - 9%) = 152.50 × (1 - 0.09) = 138.775
Which is more, 1 kilometer or 598 meters?
Answer:
1 kilometer
Step-by-step explanation:
each kilometer is 1000 meters, so you would expect
1000 > 598
hey!! plz answer this question correctly plz plz plz im on a very tight time crunch thanks besties
Answer:
b is the answer I choose because it is going in-5
Answer:
B
Step-by-step explanation:
Proportional Relationships & Percentages:Question 1
Latonya bought hotdogs for $1.29 each to sell in the
concession stand. She sold them for $3.00 each. What is
the approximate percent increase in price?
Answer:
57%
Step-by-step explanation:
Given data
Cost price = $1.29
selling price= $3
Change= 3-1.29
Change= $1.71
Hence the % increase
= 1.71/3*100
= 0.57*100
= 57%
100 POINTS! MUST EXPLAIN ANSWER!
Answer:
Answer: A and B.
Step-by-step explanation:
Supplementary angles are a pair of angles that add 180 degrees.
A. Show two angles that form a 180 degree angle, so they are supplementary.
B. This angles add 180 degrees, so they are supplementary.
C. The two angles add 90 degrees, so they are complementary, not supplementary.
D. This angles add 90 degrees, so they are complementary, not supplementary.
Answer and Step-by-step explanation:
Answer:
Answer: A and B.
Bit by bit clarification:
Valuable points are a couple of points that add 180 degrees.
A. Show two points that structure a 180 degree point, so they are beneficial.
B. This points add 180 degrees, so they are beneficial.
C. The two points add 90 degrees, so they are reciprocal, not valuable.
D. This points add 90 degrees, so they are reciprocal, not beneficial.
At a basketball game, a team made 53 successful shots. They were a combination of 1- and
2-point shots. The team scored 90 points in all. Write and solve a system of equations to find the
number of each type of shot.
There were
2-point shots and 1-point shots.
Answer:
Let x be the number of 1 point shots, and y be the number of 2 point shots.
So the system is:
x+y=53
1x+2y=90
We can solve this system by substitution.
x+y=53, x=53-y
x+2y=90
53-y+2y=90
53+y=90
y=37
That means, the team made 37 two point shots.
If the team made 37 two point shots, the team scored 37 x 2, or 74 points from 2 point shots, meaning that it made 16 one point shots.
So the correct answer is: 16 one point shots, 37 two point shots.
Let me know if this helps!
Cafe Cookies
Fraction Cafe is known for its delicious raisin cookies. On the average, ninety-six
cookies are sold each day. The raisin cookie recipe calls for two and one-half cups of
raisins per batch. One batch makes eight dozen cookies. How many cups of raisins are
needed to make enough cookies for one week? Show all your mathematical thinking.
Answer:
i need points so im r
sorry
Answer:
First of all this doesn't seem like a college question but- kay- the answer is 17 and a half cups of raisins.
Step-by-step explanation:
First of all, we need to find how many cookies are in each batch. A dozen is 12, meaning that we do 8 times 12 to see how many cookies are in each batch. 8 times 12 equals 96. This means that Fraction Cafe only makes 1 batch of cookies a day. This makes the following question simple, all we need to do is multiply how many cups of raisins it takes to make one batch, which is 2 and one half, and multiply that by 7 because there are 7 days in a week. First I converted the fration into a decimal making the number 2.5 then, I used long multiplication and moved the decimal from the 2.5 over the the right 1 place. This now makes it 25 times 7. If you know your money values, you could just count 7 quarters because quarters are 25 cents (assuming you use a currency with quarters). 7 quarters are equal to $1.75 or in our case, just 175. But we're not done yet. Remember that decimal point that we moved out of the way? We have to move it back now, meaning that since we moved the decimal 1 place to the right, we have to move it 1 spot to the left making the answer 17.5, or 17 and one half.
I need help on this someone please answer this.
Answers
A.60cm
B.168cm
C.216cm
D.12cm
Answer:
60! Add em all up
Step-by-step explanation:
can u plzz find me a length of adjacent
Answer:
There is no answer
My Logic:
The picture does not specify the degree of angle for each corner, nor can i understand what the random "a" is. also the side all the way to the left has an un-readable number.
The TV you bought was $900 and the sales tax was 10%, what was the total cost of the TV.
Solve the following variation
If y varies directly as x and y = 9 when x = 3, find y when x = 8.
Answer: y-9x+3
Step-by-step explanation:
which shapes have at least 1 right angle? Choose all that are correct.
Answer:
The Pink square, Green Rectangle, and the Orange figure
Step-by-step explanation:
The only one I'm not to sure about is the trapezoid, but you can rule out all the others because there is no right angle. Hope this helps!
The Pink square, Green Rectangle, and the Orange figure have at least 1 right angle.
What is rectangle?
In Euclidean plane geometry, a rectangle is a quadrilateral with four right angles. It can also be defined as: an equiangular quadrilateral, since equiangular means that all of its angles are equal; or a parallelogram containing a right angle.
What is square?
A rectangle with four sides of equal length is a square.
What is right angle?
A right angle is an angle that is exactly equal to 90 degrees in measure.
According to question, we have to find which shapes have at least 1 right angle.
In the given figure, we can see that the pink square, green Rectangle, and the orange figure have at least 1 right angle or have [tex]90[/tex] degree in them.
Hence, we can conclude that the Pink square, Green Rectangle, and the Orange figure have at least 1 right angle.
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Can some one help me plz I really need help
-4 ( ) = -16
-16= -8 ( )
Eight bricks are laid end to end along the edge of a flower bed. Each brick is 1 1/2 inches long. How long is the row of bricks, in inches?
Answer:
12 inches
Step-by-step explanation:
What information is useful?
Each brick is: 1 1/2 inches long.
There are 8 bricks used.
Let's multiply 1 1/2 x 8 = 12 inches.
You can convert into other metrics but depending on your question it is in inches.
Please show work :) thanks for the help.
Answer:
-3f
0
f1
Step-by-step explanation:
(x = -3) f x -3 -3f
(x = 0) f x 0 = 0
x = 1) f x 1) f1
What is the remainder of 96÷7
Answer:
13 reminder 7.
Step-by-step explanation:
Which quadrants are (-4,5) in
Answer:
Quadrant 2
Step-by-step explanation:
Take a look at the picture I added it should help you on futures questions like this :)
member owes $16.00 and pays $20.00 in Cash. The change due is $3.50.Provide the amount owed using the smallest number of bills and coins possible
Answer:
10 dollar bill, 5 dollar bill, and one dollar.
What is the difference of
7
8
−
1
3
?
A.
7
+
1
8
+
3
=
8
11
B.
7
−
1
8
−
3
=
6
5
C.
7
×
1
8
×
3
=
7
24
D.
(
7
8
×
3
3
)
−
(
1
3
×
8
8
)
=
21
24
−
8
24
=
13
24
Answer:
Step-by-step explanation:
the difference is 56 because if you add and divide them by 3 and -2 you will get 56
Please help me!! Thank you!!
Answer:
[tex]Solution,\\PQ = \sqrt{(1-3)^2+(3-1)^2} = \sqrt{2^2+2^2} = \sqrt{8} = 2\sqrt{2} \\P'Q' = \sqrt{(3-9)^2+(9-3)^2} = \sqrt{6^2+6^2} = \sqrt{72} = 6\sqrt{2}\\Also,\\RQ = \sqrt{(1-3)^2+(1-1)^2} = \sqrt{2^2} = 2\\R'Q' = \sqrt{(3-9)^2+(3-3)^2} = \sqrt{6^2} =6\\Again,\\PR = \sqrt{(1-1)^2+(3-1)^2} = \sqrt{2^2}=2\\P'R' = \sqrt{(3-3)^2+(9-3)^2} = \sqrt{6^2} = 6\\Here, P'R' = 3PR, P'Q'=3PQ ~and~ Q'R'=3RQ~\\In~other~words~each~side~of~triangle~P'Q'R' ~is~three~times~the~length~of~triangle~PQR.\\[/tex][tex]So,~the~algebraic~rule~of~diliation(enlargement)~is~(x,y)----(3x,3y)[/tex]
If my answer did not help you, comment below but please don't delete it.
What does x equal
F.x=7
G.x=-7
H.x=13
J.x=-13
A line includes the points (8,5) and (9, – 5). What is its equation in point-slope form?
Answer:
Step-by-step explanation:
slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
[tex]=\frac{-5-5}{9-8}\\\\=\frac{-10}{1}\\\\=-10\\[/tex]
Point-slope form:
y - y1 = m(x - x1)
y - 5 = -10(x - 8)
The temperature was recorded at the same time each day,
a)
Which temperature was the warmest?
b)
Which temperature was the coldest?
c)
How much colder was it on Thursday than on Saturday?
d)
On Sunday the temperature was 5°C lower than on Saturday.
What was the temperature on Sunday?
Answer:
a) The warmest temperature will be the one where the value of the temperature is the largest, in the table we can see that the largest temperature is 3°C on Saturday.
Then the largest temperature was on Saturday, and it was 3°C
b) Which temperature was the coldest?
Now we need to look at the smallest temperature (or the largest negative temperature). In the table we can see that the smallest temperature is -6°C on Friday.
Then the smallest temperature is -6°C.
c) On Thursday the temperature was -1°C
On Saturday the temperature was 3°C
The difference between the temperatures is:
-1°C - (3°C) = -4°C
This means that Thursday was -4°C colder than on Saturday.
d) On Sunday, the temperature was 5°C lower than on Saturday.
On Saturday the temperature was 3°C, then the temperature on Sunday is:
T = 3°C - 5°C = -2°C
The temperature on Sunday is -3°C.
Fill in the blank.
(3 + 8) * 4 = (3 * _ ) + (8 x 4)
Answer:
3
Step-by-step explanation:
seaerch it up
Answer: 4
Step-by-step explanation:
(3+8)*4=(3*_)+(8*4)
11*4=(3*_)+(8*4)
44=(3*_)+(8*4)
44=(3*_)+32
44-32=12
3*_=12
(3+8)*4=(3*_4_)+(8*4)
On the graph of f(x)=sinx and the interval [0,2π), for what value of x does f(x) achieve a minimum? Choose all answers that apply.
Select all that apply:
0
π/4
π/2
π
3π/2
Answer:
3π/2
Step-by-step explanation:
See attached graph
SOMEONE PLEASE HELP ME WITH MY HOMEWORK ILL DO ANYTHING FOR HELP BUT JUST PLEASE HELP ME
Answer: 50 miles
Step-by-step explanation:
Because 25 x 2 = 50
and 1 inch is 25 miles and 2 inches is then 50 miles
Answer:
C. 50 miles
Step-by-step explanation:
Help me with my math **50 pts** I mark brainliest**
Answer:
2)
[tex]2x + 6x + 8 = 32[/tex]
collect like terms
[tex]8x + 8 = 32[/tex]
move the constant to the right hand side and change its sign.
[tex]8x = 32 - 8[/tex]
Subtract the numbers
[tex]8x = 24[/tex]
Divide both sides of the equation by 8
[tex]x = 3[/tex]