Answer: C, 3500
Step-by-step explanation:
Each jump from year to year is multiplying by abt 1.6 (200/124 = 1.62, 322/200 = 1.61, etc.) so to find 1978 you'd multiply 2167 * 1.6
2167 * 1.6 = 3467.2 = closest to 3500
HELP PLS Steven keeps
record of the number of students that attend science club meetings during the first semester. He creates a box plot to display the data.
Science Club Attendance
Number of Students
What is the maximum number of students who attended a meeting?
Answer:
Option (3)
Step-by-step explanation:
Steven has created a box plot to record the number of students who attended the science club meeting.
In a box plot, initial dot represents the minimum number and extreme point represents the maximum number.
From the graph attached,
Maximum number of students who attended the meeting are 32.
Therefore, Option (3) will be the correct option.
Find an equation for the nth term of the arithmetic sequence.
-13, -8, -3, 2, ...
Answer:
An = 5n-18
Step-by-step explanation:
hello :
note : the n th term of an arithmetic sequence is :
An =A1+(n-1)d ....a common difference is : d and A1 the first term
in this exercice : d = 2-(-3)=-3-(-8) =5 A1 = -13
the n th term of an arithmetic sequence is :An =-13+(n-1)(5)
An = 5n -5 -13
An = 5n-18
4. Draw a set of shapes where 3/4 of the shapes are squares.
Each shape is 1 whole. Estimate to divide each into equal parts (do not draw fourths). Divide each whole using a different fractional unit.
Images has been attached showing 3/4 of the shapes are squares.
Given that,
To draw a set of shapes where 3/4 of the shapes are squares.
In congruent geometry, the shapes that are so identical. can be superimposed on themselves.
What is the Ratio?The ratio can be defined as the proportion of the fraction of one quantity towards others. e.g.- water in milk.
Here,
There are 3 squares and 1 nonregular quadrilateral, total = 4
the ratio of 3 squares to the total shapes = 3 / 4
Thus, Images has been attached showing 3/4 of the shapes are squares.
Learn more about congruent geometry here. https://brainly.com/question/12413243
#SPJ2
X 6.4.5-T
Qu
Assume that females have puhe rates that are normally distributed with a mean of 76.0 beats per minute and a standard deviation of a 12.5beato per minuto Complete parts (a) through (c) below
att hittemate is randamg selected to the probability that her pulse rate is less than 79 beats per minute
The pobavity
(Round to four decimal places as needed)
Same strategy as before: transform X ∼ Normal(76.0, 12.5) to Z ∼ Normal(0, 1) via
Z = (X - µ) / σ ↔ X = µ + σ Z
where µ is the mean and σ is the standard deviation of X.
P(X < 79) = P((X - 76.0) / 12.5 < (79 - 76.0) / 12.5)
… = P(Z < 0.24)
… ≈ 0.5948
A population has standard deviation o=17.5.
Part 1 of 2
(a) How large a sample must be drawn so that a 99.9% confidence interval for u will have a margin of error equal to 4.1? Round the answer up to the nearest integer. (Round the critical value to no less than three decimal places.) A sample size of is needed to be drawn in order to obtain a 99.9% confidence interval with a margin of error equal to 4.1.
Part 2 of 2
(b) If the required confidence level were 95%, would the necessary sample size be larger or smaller? (Choose one) V , because the confidence level is (Choose one) V .
Answer:
a) A sample of 198 must be drawn.
b) Smaller, because the confidence level is smaller.
Step-by-step explanation:
Question a:
We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:
[tex]\alpha = \frac{1 - 0.999}{2} = 0.0005[/tex]
Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].
That is z with a pvalue of [tex]1 - 0.0005 = 0.9995[/tex], so Z = 3.291.
Now, find the margin of error M as such
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
How large a sample must be drawn so that a 99.9% confidence interval for u will have a margin of error equal to 4.1?
This is n for which M = 4.1. So
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
[tex]4.1 = 3.291\frac{17.5}{\sqrt{n}}[/tex]
[tex]4.1\sqrt{n} = 3.291*17.5[/tex]
[tex]\sqrt{n} = \frac{3.291*17.5}{4.1}[/tex]
[tex](\sqrt{n})^2 = (\frac{3.291*17.5}{4.1})^2[/tex]
[tex]n = 197.3[/tex]
Rounding up:
A sample of 198 must be drawn.
(b) If the required confidence level were 95%, would the necessary sample size be larger or smaller?
We have that:
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
Solving for n
[tex]\sqrt{n} = \frac{z\sigma}{M}[/tex]
That is, n and z are directly proportion, meaning that a higher value of z(higher confidence level) leads to a higher sample size needed.
95% < 99.9%, so a smaller confidence interval.
Smaller, because the confidence level is smaller.
3 over x minus 2 equals 1 over x
9514 1404 393
Answer:
x = 1
Step-by-step explanation:
As written, we must interpret your equation as ...
[tex]\dfrac{3}{x}-2=\dfrac{1}{x}\\\\\dfrac{2}{x}=2\qquad\text{add $2-\dfrac{1}{x}$}\\\\x=\dfrac{2}{2}=1\qquad\text{multiply by $\dfrac{x}{2}$}[/tex]
The value of x is 1.
Question 1
10 pts
1. Burger Town sells cheeseburgers for $7.95 each plus
an additional $1.00 for each extra topping, t. Which of
the following equations best represents the cost, c, of a
cheeseburger?
O AC = 7.951
OB.C - 8.95
C. c = 7.95t + 1.00
D. C = 7.95 + 1.000
will mark brainlest
Answer: C
Step-by-step explanation:
Help please if u can I really need if so ty
Answer:hewwo I’m in school sorry for not talking to you
Step-by-step explanation:
What is (x2 - 7x + 12) / (x-3)
A. X-4
B. X-10
C. -4x+12
D. X-3
What is the measure of m?
n
28
m
7
V[?]
m =
Answer:
y geometric mean property,n² = 28 × 7 = 196n = 14.By pythagorean
Step-by-step explanation:
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Answer:
ahfjajsjdjadkfjfjakskhsk
Which represents 23
as the sum of a whole number and a fraction?
Answer:
3+5/6
Step-by-step explanation:
you can check by multiplying 3 to the denominator (6) which is 18 and adding it to the numerator (5) to make it 23/6.
You want to be able to withdraw $25,000 each year for 20 years. Your account earns 5% interest.
a. How much do you need in your account at the beginning? Do not include units!
b. How much total money will you pull out of the account? Do not include units!
C. How much of that money is interest? Do not include units!
Answer:
a. $311,555.26
b. $500,000
c. $188,444.74
Step-by-step explanation:
The computation is shown below:
a. Here we have to determine the present value
Given that
PMT = $25,000
NPER = 20
RATE = 5%
FV = $0
The formula is shown below:
= -PV(RATE;NPER;PMT;FV;TYPE)
after applying the above formula, the amount that need in the beginning is $311,555.26
b. The total money should be
= $25,000 × 20 years
= $500,000
c. The amount of interest is
= $500,000 - $311,555.26
= $188,444.74
Please helpp meeeeeee
PLEASE PLEASE HELP
timed, 10 mins left
Find x.
4000
by using pythagoras theorem h^2=p^2+b^2
Solve the given equation for x.
7^4x-4 = 32
If the domain of f(n) = -4n - 3 is (-1, 1/4,4}, what is the range?
O(-1, 2, -19)
O(-7,-4, -13)
O {1,-4, -19)
Answer:
[tex]Range= \{1,-4,-19\}[/tex]
Step-by-step explanation:
Given
[tex]f(n) = -4n - 3[/tex]
[tex]n = \{-1,1/4,4\}[/tex] --- domain
Required
Determine the range
To do this, we simply substitute the values of n in the given expression
So, we have:
[tex]n = -1[/tex]
[tex]f(-1) = -4 * -1 - 3 =4 - 3 = 1[/tex]
[tex]n = 1/4[/tex]
[tex]f(-1) = -4 * 1/4 - 3 =-1 - 3 = -4[/tex]
[tex]n=4[/tex]
[tex]f(-1) = -4 * 4 - 3 =-16 - 3 = -19[/tex]
Hence, the range is:
[tex]Range= \{1,-4,-19\}[/tex]
My friend needs help!
Don't give links, show work, no silly answer.
Answer:
the answer is x=10
add 29+1=30
90-30=60
60÷6=10
10 Days into second
help by answering
Answer:
I think it is 864000 seconds
Answer:
864000 seconds
Step-by-step explanation:
1 day=24hrs
so, 10 days= 24×10=240hrs
1 hour= 60 mins
240hrs= 60×240=14400mins
1 min=60 secs
14400mins= 60×14400=864000seconds
in triangle ABC, AC=12 in., BC= 1.5in., and m
Answer:
13.5
Step-by-step explanation:
I am not 100% sure but I really hope this helps you.
5/16 divided by 3 1/5
Answer:
25/256
Step-by-step explanation:
(5/16) / (3 1/5)
(5/16) / (16/5)
(5/16) * (5/16)
5*5 / 16*16
25/256
A cylindrical jar of jam has a diameter of 6cm and a height of 8cm if the jar is 70% full how many cubic centimeters of jam is in the jar?
Answer:
[tex] 158.256 \: {cm}^{3} [/tex]
Step-by-step explanation:
For cylindrical jar:
Diameter = 6 cm
Radius (r) = 6/2 = 3 cm
Height (h) = 8 cm
[tex]V_{cylindrical \: jar} = \pi {r}^{2} h \\ \\ = 3.14 \times {(3)}^{2} \times 8 \\ \\ = 3.14 \times 72 \\ \\ = 226.08 \: {cm}^{3} \\ \\ \because \: jar \: is \: filled \: upto \: 70 \% \\ \\ \therefore \: V_{jam} = 70 \% \: of \: V_{cylindrical \: jar} \\ \\ \therefore V_{jam} = 0.70 \times 226.08 \\ \\ \therefore V_{jam} = 158.256 \: {cm}^{3} [/tex]
Ava pours 3 gallons of paint equally into 8 cans How many gallons of paint will
there be in each can?
Answer: 3/5 or 0.6 gallons
Step-by-step explanation:
Middle
Bruce collects stamps. He collected a total of 150 stamps. If 84% of the stamps he collected were
foreign, how many other stamps
Answer:
24
Step-by-step explanation:
150 x .84 =126 foreign
150-126=24 other stamps
consider the inequality -5(x+7) <-10. write an inequalityrepresenting the soulution for x.
Answer:
x > -5
Step-by-step explanation:
You multiply both sides by -1
Simplify
Divide both sides by 5
Simplify
Subtract 7 from both sides
Simplify
Please give me BRAINLIEST and THANKS lol <( ̄︶ ̄)>
What is the volume of this triangular prism?
What’s the missing number for this equation:)
[tex]{\red\star}\:{\underline{\underline{\mathfrak{\purple{hello}}}}}\:{\red\star}[/tex]
[tex]140x = 8400[/tex]
[tex] \frac{140x}{140} = \frac{8400}{140} [/tex]
[tex]x = 60[/tex]
Our answer is 60.
Good luck.
Answer:
140 x X =8400
X=8400/140
X= 60
140 x 60 =8400
a total of 12,650 voters completed an online survey that asked if they are going to vote for a certain political canidate in an upcoming
election. how many said they are not going to vote for the candidate
Answer:You have roughly the same chance of being called as anyone else living in the United States who has a telephone. This chance, however, is only about 1 in 154,000 for a typical Pew Research Center survey. To obtain that rough estimate, we divide the current adult population of the U.S. (about 235 million) by the typical sample size of our polls (usually around 1,500 people). Telephone numbers for Pew Research Center polls are generated through a process that attempts to give every household in the population a known chance of being included. Of course, if you don’t have a telephone at all (about 2% of households), then you have no chance of being included in our telephone surveys.
Step-by-step explanation:
Coach Nichols asked the track team to run a lap around the track. Determine the distance the team ran. Use 3 for pi.
Answer:
375
Step-by-step explanation:
If the surface area of a cube is 150 cm2, what is the volume of the cube
Answer:
V = 125 in^3
Step-by-step explanation:
A cube has 6 sides, and the area of each is equal to the side length squared:
A = 6x^2
A is given as 150 cm^2, and so is equal to 6x^2. Thus, x = the side length = 5 cm.
The volume of the same cube is given by V = x^3, which here is 5^3 in^3, or V = 125 in^3