Answer: 10.28
Step-by-step explanation:
For the binomial distribution ,
standard deviation : [tex]\sigma=\sqrt{p(1-p)n}[/tex], where p = population proportion, n = sample size.
Given: n= 503 and p=0.7
Then, [tex]\sigma=\sqrt{503\times0.7(1-0.7)}=\sqrt{105.63}\approx10.28[/tex]
Hence, the standard deviation = 10.28
4+7x=3x+4+4x I need help
Answer:
0
Step-by-step explanation:
move x's to one side and constants to another
7x-3x-4x=4-4
add constants and combine like terms
0=0
A salt water solution is cooled to −6° C. During an experiment, the mixture is heated so that its temperature rises at a steady rate. Write an equation to represent the temperature, y, after x minutes.
Answer:
y = -6 + xt
where t is the rate of rising of the heated mixture per minute
Step-by-step explanation:
From the question, we are lacking an important input. This is the value of the steady rise in temperature. In other terms, this is the rate at which the temperature of the mixture rises per minute.
Let this constant rate be t ° C. What this means is that it rises by this temperature in a minute.
in 1 minute, the temperature rise is t, in two minutes it will be 2t.
Then in x minutes, it will be xt
So adding the initial temperature of minus 6, the equation will be;
y = -6 + xt
The sum of a number x and 7 is at least 16
Which statements are true for solving the equation 0,5 - 1x - 12) = -0,25? Check all that apply
Answer:
c,b,d
Step-by-step explanation:
i took the test
whats your ALL TIME pet peeve?
Answer:
Clutter
Step-by-step explanation:
I cant stand it. But only with other people.
Answer:
people using the microwave and then taking the food out like 12 seconds before it finishes and then closing it and not resetting the time (not pressing cancel) so then i have to.
Step-by-step explanation:
:/
If 48 gallons of water are poured into an empty bathtub, then ¾ of the bathtub is filled. How many gallons does a full bathtub hold?
Answer:
60 gallons
Step-by-step explanation:
divide 48 by 4 to find out how much 1/4 of the bathtub is, it is 12 gallons
then add 12 to 48 so you fill the whole bathtub, you should get 60 gallons
Answer:
64 gallons
Step-by-step explanation:
Divide. 48 divided by 3/4 is 64.
os espelhos esféricos a seguir obedecem as condições de Gauss. Represente, adequadamente, os raios refletidos em cada um dos casos, explicando a propriedade do raio formado
Write two different phrases that can both mean 5t - 4 = 1
1 = 4 - 5t and 4 - 5t + 1
PLEASE HELP
Find the zero of the function 4x-5y=15
Answer:
(3.75,0)
Step-by-step explanation:
a zero is just the x-intercept so you just have to find that
to find that, set y as 0 and solve for x
I need help can someone answer this?
Answer:
-5x^2 + 2x - 3.
Step-by-step explanation:
-5x^2+2x-3.
this is right answer
2-41.
Find all missing angles in the diagrams below.
Answer:
I don't know that answer but you should do google lens
help i need this done asap
Answer:
The answer is x=26
Step-by-step explanation:
8x-71=5x+7 (because they are congruent you make them equal each other)
Add 71 to both sides
8x=5x+78
subtract 5x
3x=78
divide 3 from both sides
x=26
In the diagram below, which distance represents the distance from point Q to
RS?
Answer: QT
Step-by-step explanation: This is because line QT is a straight line, in which it leads from point Q to line RS. QT is true because any other lines have angles, which add more (inaccurate) distance.
The required representation of distance from point Q to RS is QT.
What is a line?
A line is a straight distance connecting two points or more showing the shortest distance between the initial and final points.
here,
A figure is shown with a line segment RS and a point is located some distance from line RS, denoted as Q. It is to be determined which represents the distance from point Q to RS.
The shortest distance between a point and a line is the perpendicular line drawn from the point to the line, so QT is the representation of the measure of the distance from point Q to RS.
Thus, the required representation of distance from point Q to RS is QT.
Learn more about lines here:
brainly.com/question/2696693
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Which statements about the trend line in Item 3 are true?
Select all that apply.
A. The slope is the cost of one book.
В.
The slope is the cost of Hana's lunch.
C.
The y-intercept is the cost of one book.
D.
The y-intercept is the cost of Hana's lunch.
Answer:
A and D
Step-by-step explanation:
I took it and I got it correct
The true statements are the slope is the cost of one book and the y-intercept is the cost if Hana's lunch.
What is Slope?A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the
change in y coordinate with respect to the change in x coordinate as,
m = Δy/Δx where, m is the slope
Given:
As, from the graph the slope tells us about the cost of one book.
Now, From the graph if we talk about y- axis then we can see that the y- axis tells us about cost if Hana's lunch.
Hence, the true statements are the slope is the cost of one book and the y-intercept is the cost if Hana's lunch.
Learn more about slope here:
brainly.com/question/3605446
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Please solve forx
11
12 km
9 km
type your answer...
km
Answer:
x=69
Step-by-step explanation:
when you add the side lengths you have, you will get 21. since this is a right triangle, yoy subtract by 90. so 90-21 = 69
Given the following similar triangles, answer the following questions.
1. What is the scale factor?
2. What is the value of x?
an
x
14
48
Step-by-step explanation:
triangles are similar so
their sides are the same rapport
48/6=x/5
scale factor is 48/6=8
value of x ,we can use the formula
48/6=x/5
8=x/5
x=8*5=40
i bet no one on here can hit my ovh
Answer:
Step-by-step explanation:
ok weirdo
please help evaluate this equation!!
Step-by-step explanation:
no solution for zero?....
An underground mine elevator descends 12% of the total depth every minute. The total depth of the elevator is 75 meters below the ground. How many meters below the ground is the elevator after 2 minutes?
Answer:
18m below the groundStep-by-step explanation:
"An underground mine elevator descends 12% of the total depth every minute. The total depth of the elevator is 75 meters below the ground. How many meters below the ground is the elevator after 2 minutes?"
We want to estimate the depth after certain number of time
Given
total depth=75m
rate of descends =12% of total depth
= 12/100*75= 0.12*75
=9 meters per minute
Therefore in 2 minutes we can use the expression to find the distance/depth
speed= distance/time
9=distance/2
distance=9*2
distance= 18 meters
Therefore the elevator is 18m below the ground in 2 minutes
Answer:
18 meters
Step-by-step explanation:
i took the test
HELP TIMED TEST WILL GIVE BRAINLIEST !!
Which pair of sides is perpendicular?
A. Side 1 and Side 3
B. Side 2 and Side 3
C. Side 1 and Side 4
D. Side 2 and Side 4
Answer:
B. side 2 and side 3
Step-by-step explanation:
perpendicular if thr relationship of 2 lines that meet at a 90 degree angle which is what sides 2 and 3 do.
Lin and Diego both ran for 10 seconds, each at their own constant speed. Lin ran 40 meters and Diego ran 55 meters. How far did each person move in 1 second
Answer:Lin 4 and Diego 5.5
Step-by-step explanation: Lin 40÷10=4 and Diego 55÷10=5.5
HELP!!!
10 POINTS!!!
Answer:
The line shape will be reflected over line y = -x
Step-by-step explanation:
If you were to draw these lines and reflect the image, the image will show as being reflected into quadrant 3.
Shelly spent $110 for renting a bicycle while she was on vacation. The rental consisted of a one-time payment of $20 and then $15 per day. Which number line shows the number of days, d, she rented the bicycle?
Answer:
well if she rents for 1 week it is $105 + the 1 time payment of 20
Step-by-step explanation:
110+105+20= $235
Answer:
i would say she spends $110 for renting a bicycle, and the d would be $15 per day.
Step-by-step explanation:
Which expression is equivalent to ^4 sqrt x^10
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[tex] \sqrt[4]{ {x}^{10} } = \sqrt[4]{ {x}^{4} \times {x}^{4} \times {x}^{2} } = [/tex]
[tex]x \times x \times \sqrt[4]{ {x}^{2} } = {x}^{2} \sqrt[4]{ {x}^{2} } [/tex]
Thus the correct answer is the first one.
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
-Consumer Awareness The prices per gallon of
regular unleaded gasoline at three service stations are
$3.439, $3.479, and $3.589, respectively. Find the
average price per gallon
Answer:
$3.502
Step-by-step explanation:
Average price per gallon = Sum of the prices/Number of prices
= (3.439+3.479+3.589)/3
= 10.507/3
= 3.502
If they have 20 pounds of strawberries to freeze.If they put 1.25 pounds of strawberry would in to each freezing container how many containers will they fill
Answer:
They will fill 16 containers
Step-by-step explanation:
From the question,
They have 20 pounds of strawberries to freeze and they put 1.25 pounds of the strawberry into each freezing containers.
To determine how many freezing containers they will fill, we will divide the total mass of strawberries they have by the mass of strawberry they put into each freezing containers.
Hence,
Number of containers they will fill = Total mass of strawberries that have / Mass of strawberry they put into each container
Total mass of strawberries that have = 20 pounds
Mass of strawberry they put into each container = 1.25 pounds
∴ Number of containers they will fill = 20 pounds / 1.25 pounds
Number of containers they will fill = 16
Hence, they will fill 16 containers.
IN NEED OF HELP!!
15 POINTS!!!
Answer:
what do you need help with?
Step-by-step explanation:
❤️
A calendar shop has 4,960 calendars. Each rack can hold 32 calendars. How many racks does the store need to use?
Answer:
the answer is 155
Step-by-step explanation:
divide 4960 by 32
Which one?
A. B. C. or D?
the answer is b
Step-by-step explanation:
The following image was reflected over the x-axis. What are the coordinates of C’?
Answer:
C' is (6,3)
Step-by-step explanation:
Since the new image was reflected over the x-axis, the x-coordinate would be the same as the orginial, it wouldn't change. The only thing that would change is the y-coordinate. The image has to be the same distance away from the original, so that means the y-coordinate would be the opposite sign. Reflecting the image over the x-axis would put it in quadrant one, so the y-coordinate would have to be positive.