Answer:
c I think not sure juinji
The standard error of the sampling distribution is 0.014. The closest option to 0.014 among the answer choices is C. 0.045, but it is not a match. None of the provided answer choices matches the calculated value exactly.
To find the standard error of the sampling distribution, we can use the formula:
[tex]Standard Error = \sqrt{[(sample proportion * (1 - sample proportion)) / sample size]}[/tex]
Given a sample size of 120 and a sample proportion of 0.4, we can calculate the standard error as follows:
[tex]Standard Error = \sqrt{[(0.4 * (1 - 0.4)) / 120]}\\Standard Error = \sqrt{[(0.4 * 0.6) / 120]}\\Standard Error = \sqrt{[0.024 / 120]}\\Standard Error = \sqrt{0.0002}\\Standard Error \approx 0.014[/tex]
Rounded to three decimal places, the standard error is approximately 0.014.
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In the figure below, the measure of angle ABD = 64 degrees. The measure of angle ABC = 3x + 6. the measure of angle CBD = 2x - 2. Using the angle addition postulate, find the value of x.
Answer:
x=12
Step-by-step explanation:
just combine them so they equal the 64 then solve from there and you get 12.
solve the triangle give the measure of angle G
Answer:
G = 46 degrees
Step-by-step explanation:
Here, we want to find the measure of angle G
Mathematically, as we can see, what we have is a right triangle
For a right triangle , the sum of angles is 90 degrees
Thus, if we add the two internal angles, we get 90 degrees
Hence;
44 + G = 90
G = 90-44
G = 46 degrees
Joe has seven boxes of markers
and each box has eight markers.
How many markers doe she have
altogether?
Answer:
[tex]56[/tex]
Step-by-step explanation:
[tex]7[/tex]×[tex]8[/tex][tex]=56[/tex]
In the figure to the right, if AC = 21 and BC = 18, what is the
radius?
Triangle is missing, so i have attached it.
Answer:
Radius = 10.82
Step-by-step explanation:
From the image attached, the triangle is obviously a right angle triangle and therefore, the missing side (AB) which is the radius can be found via pythagoras theorem.
We are given;
AC = 21
BC = 18
Thus;
|AC|² = |AB|² + |BC|²
21² = |AB|² + 18²
|AB|² = 441 - 324
AB = √117
AB = 10.82
Answer: The answer is 10.8 mathxl/pearson2022
If $500 is invested at 8% annual interest, how much will be in the account after 3 years if it's compounded quarterly?
Answer:
FV= $634.12
Step-by-step explanation:
Giving the following formula:
Initial investment (PV)= $500
Number of periods (n)= 3*4= 12 quarters
Interest rate (i)= 0.08/4= 0.02
To calculate the future value, we need to use the following formula:
FV= PV* (1 + i)^n
FV= 500*(1.02^12)
FV= $634.12
What is the simplified form for each expression 361/4•361/4
Answer:
the simplified from each expression is divide
Given that x = 7, what is the value of -2x^0
HELP MEEEEE I REALLY NEED HELP
Answer:
they are vertical angles
Step-by-step explanation:
An unknown number is not equal to 3.6 but rounds to 3.6 when rounded to the nearest tenth, what could be the number?
Answer:
3.55-3.59
Step-by-step explanation:
to round off to the nearest whole number, look at the first number after the decimal, if it is less than 5, add zero to the units term, If it is equal or greater than 5, add 1 to the units term.
So numbers that would be rounded off to 3.6 have to have an hundredth value equal or greater than 5
they include
3.55
3.56
3.57
3.58
3.59
Use the points (1997, 13) and (2005, 22) to write the slope intercept form of an equation for the line of fit shown in the scatter plot. Round values to the nearest hundredth.
A. y=0.89x+1985.44
B. y=1.13x-2243.65
C. y=1.13x-2233.63
D. y=0.89x-1985.44
The slope-intercept form of an equation for the line of fit shown in the scatter plot is; C. y=1.13x-2233.63
What is the slope?The slope is the ratio of the vertical changes to the horizontal changes between two points of the line.
We can observe that the line of best fit on this scatters plot passes through points (1997, 13) and (2005, 22).
Using the slope formula,
⇒ slope = (22 - 13)/(2005 - 1997)
⇒ slope = (9)/8
Also, the slope-intercept form of an equation for the line of fit shown in the scatter plot is;
y - 13 = (9)/8(x - 1997)
y = 1.13x -2233.63
Therefore, the slope-intercept form of an equation is y = 1.13x -2233.63
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Triangle ABC is graphed on a coordinate plane with vertices at A (-3,7), B (9,-8), and
C(-5, -6). If triangle ABC is dilated by a scale factor of m with the origin as the center
of dilation to create triangle A'B'C', what will be the coordinates of the dilated vertex
B?
Answer:
Step-by-step explanation:
write in slope intercept form: 4x-5y= -20
Step-by-step explanation:
4x - 5y = -20
-5y = -4x -20
y = 4/5x + 4
PLS HELP! VERY IMPORTANT
The surface area of a cone is determined by the equation SA= a rs + a r2, where r is the radius and s is the slant
height. The functions f(x) and g(x) both model the surface area of a cone. One of the functions represents the
surface area of a cone with a radius of 5 and a slant height of x. The other function represents the surface area of a
cone with a slant height of 5 and a radius of x. Which statement correctly matches the description of the function
with the domain of the function in the context of the problem situation?
The function f(x) models the surface area of a cone with a radius of 5, a slant height of x, and has a domain in
the context situation of x < 5.
® The function f(x) models the surface area of a cone with a radius of 5, a slant height of x, and has a domain in
the context situation of x > 5.
© The function g(x) models the surface area of a cone with a radius of 5, a slant height of x, and has a domain in
the context situation of x < 5.
The function g(x) models the surface area of a cone with a radius of 5, a slant height of x, and has a domain in
the context situation of x>5.
Answer:
r = 5, h = 5, SH = 7.07106781, V = 130.899694, LSA = 111.072073, BSA = 78.5398163, TSA = 189.61189
Step-by-step explanation:
PLEASEEEEE HELP ME......
Answer:
B makes the most sense.
Step-by-step explanation:
The others make little to no sense.
Answer:
B is the correct answer. it makes sense
hey i kinda need help on this question
(could you do a step by step method i think it would help a lot)
Answer:
27.6°
Step-by-step explanation:
6.5²-6² = 6.25
✓6.25 =2.5
^^^ that was Pythagoras theorem
9+2.5 = 11.5
23-11.5 =11.5
6 = height =opposite
11.5 = base = adjacent
sohcahtoa
use Tan
Tan-¹(6/11.5)
gives the angle CDA = 27.5528...
27.6 (1d.p)
Find the Greatest Common Factor of 25c2 and 10w2
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{25c^2: 1,5,25,c,\& \ c}[/tex]
[tex]\mathsf{10w^2: 1,2,5,10,w,\& \ w}[/tex]
[tex]\large\textsf{GCF: \underline{5} because that is the HIGHEST factor both numbers share}\\\large\textsf{together}[/tex]
[tex]\boxed{\boxed{\large\textsf{Answer: the \bf GCF (\underline{G}reatest \underline{C}ommon \underline{F}actor) is \huge 5}}}\huge\checkmark[/tex]
[tex]\large\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
I'm really confused about this question
Answer:
A. 10 ft
Step-by-step explanation:
Since dimensions of the wall are similar to the dimensions of the window.
Therefore, lengths and widths of wall and window would be in proportion.
So,
[tex] \frac{h}{2} = \frac{24.5}{4.9} \\ \\ h = \frac{24.5 \times 2}{4.9} \\ \\ h = \frac{49}{4.9} \\ \\ h = \frac{490}{49} \\ \\ h = 10 \: ft[/tex]
Find the area of the kite
Answer: I think 46
Step-by-step explanation:
What is the perimeter of the rectangle whose vertices are at (6, 3), (−6, 3), (−6, −1), and (6, −1)?
Given:
The vertices of a rectangle are (6, 3), (−6, 3), (−6, −1), and (6, −1).
To find:
The perimeter of the rectangle.
Solution:
Distance formula:
[tex]d=\sqrt{(x_2-x_1)^2-(y_2-y_1)^2}[/tex]
Let the vertices of a rectangle are A(6, 3), B(−6, 3), C(−6, −1), and D(6, −1).
Using the distance formula, we get
[tex]AB=\sqrt{(-6-6)^2-(3-3)^2}[/tex]
[tex]AB=\sqrt{(-12)^2-(0)^2}[/tex]
[tex]AB=\sqrt{144}[/tex]
[tex]AB=12[/tex]
Similarly,
[tex]BC=\sqrt{\left(-6-\left(-6\right)\right)^2+\left(-1-3\right)^2}=4[/tex]
[tex]CD=\sqrt{\left(6-\left(-6\right)\right)^2+\left(-1-\left(-1\right)\right)^2}=12[/tex]
[tex]AD\sqrt{\left(6-6\right)^2+\left(-1-3\right)^2}=4[/tex]
Now, the perimeter of the rectangle is:
[tex]Perimeter=AB+BC+CD+AD[/tex]
[tex]Perimeter=12+4+12+4[/tex]
[tex]Perimeter=32[/tex]
Therefore, the perimeter of the rectangle is 32 units.
Graph the function f(x)= -2.5x^2
Answer is in the pictures I promise nothing bad.
Use desmos to graph stuff by the way.
find y=0... this x intercept is zero
What are the answer for your these questions?
Answer:
a. 11
b. 9
Step-by-step explanation:
A:
2 x 4 = 8
8 + 3 = 11
B:
-2 x -2 = 4
4 + 5 = 9
Hope this helps! Let me know if it was right!
What is the area of this regular pentagon that has been divided into five congruent triangles?
48 [tex]cm^{2}[/tex]
120 [tex]cm^{2}[/tex]
100 [tex]cm^{2}[/tex]
24 [tex]cm^{2}[/tex]
Answer:
120 cm^2.
Step-by-step explanation:
The area of one triangle = 1/2 * base * height
= 1/2 * 8 * 6
= 1/2 * 48
= 24 cm^2
So area of the pentagon = 5 * 24
= 120 cm^2.
Help a brother out. Math
Answer:
bet ay yo it's D. 3,630 cubic meters
Factoring tinomials
3) 3n^2-8n+4
5) 2y^2+11v+5
7) 7a^2+53a+28
Do all please
Please help me, much appreciated
Answer:
3 numbers are less than the mean. the mean is 17.4 so any number below that
During the past 7 weeks digo spent between 11 and 17 for much lunch each week
x^2+18x+c I have to solve for c
Answer: 81
Step-by-step explanation:
yo i need help on my exit ticket please i don’t need no links i just need the answer pleaseeeee
Answer:
B
Step-by-step explanation:
V=[tex]\pi r^{2} h[/tex]
V=3.14*[tex](16/2)^{2}[/tex]*3
V=3.14*[tex]8^{2}[/tex]*3
V=3.14* 64*3
V=602.88 which rounds up to 602.9
An equation is represented by the model below
What is the value of x that makes the equation true?
If you can may someone explain how to do this also? Thanks!
Answer:
The value of x=5!
Step-by-step explanation:
I remeber ing this!!!:)
