Answer:
B
Step-by-step explanation:
On edge
The probabilities is the greatest for a standard normal distribution is
P(-0.5 ≤ z ≤ 0.5) = 0.382.
What is Normal Distribution?An example of a continuous probability distribution is the normal distribution, in which the majority of data points cluster in the middle of the range while the remaining ones taper off symmetrically towards either extreme. The distribution's mean is another name for the centre of the range.
From the diagram attached below, we can write
1. P( -1.55 ≤ z ≤ -0.5)
= 0.092 + 0.15
= 0.242
or, 9.2%+15%=24.2%.
2. P( -0.5 ≤ z ≤ 0.5)
= 0.191 + 0.191
= 0.382
3. P( 0.5 ≤ z ≤ 1.5)
= 0.15 + 0.092
= 0.242
4. P( 1.5 ≤ z ≤ 2.5)
= 0.044 + 0.017
= 0.061
So, the greatest value is P(-0.5 ≤ z ≤ 0.5) = 0.382
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An airplane is flying from Redville to leek.The airplane flies 50 miles East and then 180 miles South .how far is leek from Redville directly
Answer:
230
Step-by-step explanation:
Which equation is correct? (6 points)
cot x° = opposite ÷ adjacent
sec x° = opposite ÷ adjacent
sec x° = adjacent ÷ opposite
cot x° = adjacent ÷ opposite
Answer:
option d or last one
GOOD LUCK FOR THE FUTURE! :)
Answer:
The answer is cotx=adjacent/opposite
Step-by-step explanation:
I took the test and this is correct!!
Write a rule for a function with a parabolic graph that contains the x-intercepts (-20,0) and (40,0) and a maximum point whose y-coordinate is 30.
Step-by-step explanation:
Since the x-intercepts are -20 and 40, the line of symmetry is x = (-20 + 40)/2 = 10.
Now we have y = a(x - 10)² + 30, where a is an unknown constant. We can find a by using an x-intercept point.
=> (0) = a[(40) - 10]² + 30
=> 900a + 30 = 0, a = -1/30.
Hence the rule is y = -(x - 10)²/30 + 30.
6/7 into two decimal places.
Answer:
0.86
Step-by-step explanation:
You will get 0.85714.....
Then 0.86 is 2 dp
sorta need answer asap
Three students snow shoveled driveways and sidewalks after the last snow
storm. They earned a total of $210. If they split the money evenly how much
did each student recelve?
Answer:
Each student receives $70 dollars each.
Step-by-step explanation:
Whats the volume of them combined
Answer:
72
Step-by-step explanation:
2x2x13=52
2x2x5=20
52+20=72
A student organization at a local college posted a poll on its website. After a semester, the results were tallied, and it was found that 95% of the respondents were in favor of raising fees to increase funding for student organizations. This conclusion was based on data collected from 5000 votes cast on the website. Which sampling technique is being used
Answer: voluntary response sampling
Step-by-step explanation:
Based on the information given in the question, the sampling technique that is being used is the voluntary response sampling.
A voluntary response sampling refers to a sample which is gotten when a researcher tells the members to join a particular sample and then the ones that are interested then joins. Such participants volunteer voluntarily and take part in the research studies and give their opinions on the topic.
Since the student organization at a local college posted a poll on its website and the interested students took part, it is a voluntary response sampling.
You deposit $400 in an account earning 5% interest compounded annually. How much will you have in the account in 15 years?
Answer:
$700
Step-by-step explanation:
400 x .05=20
20x15=300
300+400=700
10√1/5 find the mixed surd..
Answer:
2√5............or..........4.47214
Wren and Jenni are reading the same book. Wren is on page 12 and reads 3 pages every night. Jenni is on page 7 and reads 4 pages every night. After how many nights will they have read the same number of pages? How many pages will that be?
Answer:
After 5 nights they will have read the same number of pages. It would be 27 pages.
Step-by-step explanation:
12+3x=7+4x
12=7+x
5=x
12+3(5)=27
7+4(5)=27
Hope this helps!:)
It takes 6 labourers 7 days to complete a job. How many labourers would it take to complete the job in 3 days?
I
labourers
Answer:
12 or 13
Step-by-step explanation:
14 labourers complete the job in 3 days.
What is the ratio?The ratio is defined as a relationship between two quantities, it is expressed one divided by the other.
What are Arithmetic operations?Arithmetic operations can also be specified by the subtract, divide, and multiply built-in functions.
Given data as :
It takes 6 labourers 7 days to complete a job,
Amount of work completed by 6 labourers over 7 days = 1
∵ Six labourers completed part of the work in one day = 1/7
∴ one labourers completed part of the work in one day = (1/6)(1/7) = 1/42
Let x number of labourers complete the job in 3 days.
x × 3 ×(1/42) = 1
x = 42/3
x = 14
Hence, 14 labourers complete the job in 3 days.
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Nathan has $40 in a savings account. The interest rate is 5% per year and is not
compounded. How much interest will he earn in 1 year?
Use the formulai = prt, where / is the interest earned, p is the principal (starting amount),
is the interest rate expressed as a decimal, and is the time in years.
Submit
Answer:
He will earn 2 dollars per year with 40 dollars in his account. the next year he will get 2.1 dollars.
Step-by-step explanation:
Coordinate double equation
Answer:
????
Step-by-step explanation:
The distance between a chord and the center of a
circle is 4 cm. What is the radius of the circle if
the chord measures 16 cm?
Consider the graph of the function
f(x)=2^x
Answer:
D. The y-intercept is at (0,2)
Step-by-step explanation:
f(x) = 2^x and g(x)=2f(x) so g(x) = 2(2)^x
In the exponential function ab^x a is the y-intercept (in this case a is 2)
Y-intercept of g(x) at (0,2) which is correct option(D).
What is graph?A graph can be defined as a pictorial representation or a diagram that represents data or values.
f(x) = 2ˣ
g(x) = 2f(x) = 2(2ˣ)
The y-intercept of g(x) = 2f(x),
Substitute in 0 for x and solve for y
y=2(2⁰)
Anything raised to 0 is 1 .
y=2
Y-intercept in point form.
Hence, y-intercept of g(x) : (0,2)
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Cody put 4 plates on the table. He put 1 Apple on each plate.what number sentence can be used to find the total number of apples on the table?
In need help with this
look at picture
Complementary angles
Answer:
x = 28
Step-by-step explanation:
x + 40 + 22 = 90 {Complementary angles}
x + 62 = 90
x = 90 - 62
x = 28
Help please I will give Brainliest
Answer:
Reduce the expression, if possible, by eliminating common factors.
Exact form:
1/30
Decimal form:
0.03
Is Andrew correct or incorrect explain
because 2^28 = 268,435,456
follow meAnswer:
Andrew is incorrect.
Step-by-step explanation:
He is incorrect because instead of multiplying 2 x 28, he should have did 2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2, which is 268,435,456.
I tm pretty sure this is correct, please comment if it is right or wrong
The coefficients in the expansion of (x + y)^6 are
Answer:
Polynomial Degree:
6
Leading Term:
x⁶
Leading Coefficient:
1
Answer:
Step-by-step explanation:
hello :
here is an solution
Suppose P(t)represents the population of a certain mosquito colony, where. t is measured in days. The current population of the colony is known to be 574 mosquitos; that is, P(0)=574. If P'(0)=50 mosquitos per day, estimate the size of the population in 10 days.
Answer:
The estimated size of the population in 10 days is of 1372 mosquitos.
Step-by-step explanation:
Population after t days:
The population after t days is given by:
[tex]P(t) = P(0)e^{rt}[/tex]
In which P(0) is the initial population and r is the growth rate, as a decimal.
P(0)=574.
So
[tex]P(t) = 574e^{rt}[/tex]
P'(0)=50
[tex]P^{\prime}(t) = 574re^{rt}[/tex]
Since P'(0)=50
[tex]574r = 50[/tex]
[tex]r = \frac{50}{574}[/tex]
[tex]r = 0.0871[/tex]
So
[tex]P(t) = 574e^{0.0871t}[/tex]
Estimate the size of the population in 10 days
This is P(10).
[tex]P(10) = 574e^{0.0871*10} = 1372[/tex]
The estimated size of the population in 10 days is of 1372 mosquitos.
The size of the population of mosquito follows an exponential model.
The size of the population in 10 days is 1370
The given parameters are:
[tex]\mathbf{P(0) = 574}[/tex]
[tex]\mathbf{P'(0) = 50}[/tex]
An exponential function is represented as:
[tex]\mathbf{P(t) = P(0) \times e^r^t}[/tex]
So, we have:
[tex]\mathbf{P(t) = 574 \times e^r^t}[/tex]
Differentiate
[tex]\mathbf{P'(t) = 574r}[/tex]
Substitute 0 for t
[tex]\mathbf{P'(0) = 574r}[/tex]
Substitute [tex]\mathbf{P'(0) = 50}[/tex]
[tex]\mathbf{50 = 574r}[/tex]
Divide both sides by 574
[tex]\mathbf{0.087 = r}[/tex]
So, we have:
[tex]\mathbf{r = 0.087 }[/tex]
The function becomes
[tex]\mathbf{P(t) = 574 \times e^r^t}[/tex]
[tex]\mathbf{P(t) = 574 \times e^{0.087t}}[/tex]
In 10 days, t = 10.
So, we have:
[tex]\mathbf{P(10) = 574 \times e^{0.087 \times 10}}[/tex]
[tex]\mathbf{P(10) = 574 \times e^{0.87}}[/tex]
Solve
[tex]\mathbf{P(10) = 1370}[/tex]
Hence, the size of the population in 10 days is 1370
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Tasha graphs a star with one tip at point S(-3,1). What are the coordinates of the corresponding point after a 90 rotation about the origin?
Answer:
(-1,-3)
Step-by-step explanation:
i will give brainliest if your answer is correct
Answer:
Faces
Step-by-step explanation:
They both have 5 faces each....
Hope it helps!!!
using number line write the integer which 5 more than -3
Answer:
x = 2
Step-by-step explanation:
We need to write an integer that is 5 more than -3.
Let the integer be x.
So,
x = 5+(-3)
x = 5-3
x = 2
Hence, the required integer be 2.
Multiply the sum 5 and 3 and the sum of 8 and 9
Answer:
8 x 17 = 136 give me brainliest
Step-by-step explanation:
Use summation notation to write the series -1 + 2 + 5 + 8 + 11... for 10 terms, then evaluate the sum.
Answer:
-1 + 2 + 5 + 8 + 11 + 14 + 17 + 20 + 23 + 26
10 terms
sum = 125
PLEASE HELP!!
How do I solve this?!?!?
Answer:
id say just try your best or guess
Step-by-step explanation:
ouu try to put it in a calculator but uhm my answer would be a
1. The ratio of Allison's weight to Brett's weight was 4:5. If Allison's weight
increased by 5 lbs. and Brett's weight decreased by 1
Answer:
the ratio would be 9:4 because you just add
Step-by-step explanation:
just add the rstio
Please help me with this question
Answer:
An equation is y=-3x+7 (I chose slope-intercept form because they already showed us the slope). When y =13 x=-2
Step-by-step explanation:
plugin 13 for y and subtract 7 from both sides, this lets you get 6=-3x then divide 6 by -3 which makes x=-2
