The true statement is as follows "No because she did not use a simple random sample".
What is random sampling?Random sampling is the method to choose the given samples of observation to make assumptions about the population.
It is given that
Population: All tenth-grade girls
Sample: 20 intramural tennis players
The 20 intramural tennis players cannot represent all tenth-grade girls.
This is so because the selection is biased here, and it could not be used to make inferences about the overall population. then she did not use a simple random sample.
Hence, the true statement is (b)
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Answer:
the correct answer is B.
Step-by-step explanation:
~Hope this helps! :)
no pdf please or a image or link
Help me please. How to prove this ?
[tex] \frac{ \cos(x) + \sin(x) }{ \cos(x ) - \sin(x) } = \tan(45 + x) [/tex]
Answer:
First, you want to divide the numerator and denominator by the cosine(x), and afterwards, it looks like this...[tex]\frac{tan~x+1}{tan~x-1}[/tex]
Include 45 as one of the parameters and correlate with tan.[tex]\frac{tan~x+tan~45}{tan~x-tan~45}[/tex]
Next, you want to multiply the numerator and denominator by the conjugate of the denominator, in this case, tan x + tan 45.Lastly, simplify, and you have the answer as tan(45 + x)Tyler packed 8 shirts for a trip. Six of the shirts are short-sleeved. He randomly selects a shirt from his suitcase, replaces the shirt, and then selects another.
The two times Tyler selects a shirt from the suitcase are __________ events.
The probability that he selects a short-sleeved shirt both times is ________.
options for blank 1: independent, dependent
options for blank 2 :15/28, 9/16, 3/4, 9/14
Answer:
independent
9/16
Step-by-step explanation:
The events are independent events since he puts the first shirt back
P( short sleeve) = number of short sleeve)/ total
= 6/8 = 3/4
P ( short sleeve, short sleeve) = 3/4 * 3/4 = 9/16
What is the mode of this data set?
{2, 2, 3, 3, 4, 4, 4, 4}
Enter your answer in the box
9.4. During the course of a normal workday, Sandra and Bob interact with each other more than they do with anyone else. Bob works more closely with Gloria than he does with Joe. Sandra does not work much with Joe but she does work somewhat more with Gloria. If the offices of these individuals were arranged in a linear fashion, one following the other and Sandra's office was first, in what order should they be arranged for maximum communication efficiency?
(1 Point) A. Sandra-Bob-Joe-Gloria B.Sandra-Gloria-Bob-Joe C. Sandra-Gloria-Joe-Bob D.Sandra-Bob-Gloria-loe
10. Reason (2 points)
The ordering that will be important to illustrate maximum communication efficiency is D. Sandra-Bob-Gloria-loe.
What is communication?It should be noted that communication simply means the passing of information from the sender to the receiver.
In this case, ordering that will be important to illustrate maximum communication efficiency is Sandra-Bob-Gloria-loe. This is because Sandra communicates more with Bob than anyone else.
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Find the value of z.
Answer:
z=6 sqrt 2
Step-by-step explanation:
Find y, by using the pythagrean theorem, 9=1+0, y= 2sqrt 2. Then plug y in to find z. 2srt ^2+8^2=z^2, 8+64=72=6sqrt2
what is -2(-6+-y) in expanded form
p.s. I'm only a 7th grader so this is 7th grade math
Answer:
2 mutiplyed by (y + 6)
Step-by-step explanation:
Pull out like factors :
-6 - y = -1 • (y + 6)
at the end:
0 - -2 • (y + 6)
Final result :
2 • (y + 6) !
HELP ASAP....PLS NO LINKS AND NO JOKING
on a computer assembly line, the company's goal is to have no more than 2% errors there are 220 computers assembled each day. the inequality representing the relationship between the number of computers assembled and errors (e) is shown below
e220 <0.02
how many computers out of 220 can have errors and stay within the company's of no more than 2% errors
A. e<=2
B. e<=4
C. e<4
D. e<2
Hi maryanne!
Answer:
C. e<4
Step-by-step explanation:
Since [tex]\frac{e}{220} \leq 0.02[/tex]
e [tex]\leq[/tex] 0.02 x 220
e [tex]\leq[/tex] 4.4 (multiply 220 both sides)
e [tex]\leq[/tex] 4.4
Thefore it can be e [tex]\leq[/tex] 4
Which is the graph of the linear inequality 2x – 3y < 12?Which is the graph of the linear inequality 2x – 3y < 12?
Answer:
(Check out the attachment)
Step-by-step explanation:
Your graph should look like this with the x-intercept = 6 and y-intercept = -4. Don't forget the dotted lines!
Good luck! :)
Answer:
to clarify its c :)
Step-by-step explanation:
What are the zeros of the quadratic function f(x) = 6x2 – 24x 1?
The zeros or roots of the quadratic function f(x) = 6x² – 24x +1 were found with the help of the formula.
The given quadratic equation is:
[tex]6x^{2} -24x+1=0[/tex]
What is a quadratic equation?Any equation of the form [tex]ax^{2} +bx+c=0[/tex] where a≠0 is called a quadratic equation.
We know the solution of a quadratic equation [tex]ax^{2} +bx+c=0[/tex] is given by:
[tex]x=\frac{-b +\sqrt{b^{2}-4ac } }{2a}[/tex]
[tex]x=\frac{-b -\sqrt{b^{2}-4ac } }{2a}[/tex]
So, the solution of the quadratic equation [tex]6x^{2} -24x+1=0[/tex] will be:
[tex]x=\frac{-(-24) +\sqrt{(-24)^{2}-4(6)(1) } }{2*6}[/tex]
[tex]x=\frac{12+\sqrt{138} }{6}[/tex]
[tex]x=\frac{12-\sqrt{138} }{6}[/tex]
Thus, the zeros or roots of the quadratic function f(x) = 6x² – 24x +1 were found with the help of the formula.
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Answer:
its the fourth one on edge D
Step-by-step explanation:
x=2+23/6 or x=2-23/6
A school locker has a length of 1 ft a width of 18 in and a height of 2 and a half ft. What is the volume in cubic feet
Answer:
6,480
Step-by-step explanation:
1 ft = 12 in.
1 x 12
12
2.5 x 12
30
12 x 30
360 x 18
6,480
Can someone please give me the awnser?
Is 2/3 < 5/8? Help me with this
Answer:
No its 2/3 > 5/8
Step-by-step explanation:
To get the answer, we first convert each fraction into decimal numbers. We do this by dividing the numerator by the denominator for each fraction as:
2/3 = 0.667
5/8 = 0.625
Then, we compare the two decimal numbers to get the answer.
0.667 is greater than 0.625. So 2/3 > 5/8
Answer:
No, 2/3 is bigger than 5/8
Step-by-step explanation:
If you convert 2/3 into a deciamal it is 0.666
and if you convert 5/8 into a decimal it is 0.625
therefore 2/3 is the bigger fraction and the statement is not correct.
Hope this helps!!!!
How many solutions exist for the given equation? 12x 1 = 3(4x 1) – 2 zero one two infinitely many
An equation is formed of two equal expressions. The given equation 12x+1=3(4x+1)-2 has infinite numbers of solutions.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
To find the solution to the equation we need to solve the given equatiopn. Therefore, the equation can be written as,
[tex]12x+1=3(4x+1)-2\\12x+1=12x+3-2\\12x+1=12x+1[/tex]
As we can see that both sides of the equation are similar to each other, therefore, for any value of x the equation will be satisfied.
Thus, the given equation 12x+1=3(4x+1)-2 has infinite numbers of solutions.
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Which expression is equivalent to (x2 +3x +5) (2x + 4)?
Answer:
Step-by-step explanation:
Which solid can hold more: a cylinder with a diameter and height of 6 inches or a square prism with side lengths of 6 inches?
Answer:
If two solids have the same height h and the same.cross-sectional area B at.every level then they have the same volume.So the volume of a right prism and.an oblique one of the same height and cross sectional area are same.
Step-by-step explanation:
hope this helps if not please let me now
Hi! I was wondering if i got the right answer for this question?
I got 3301.2
answer:
i also got what u got 3301.2
Do you think using a dot plot would be a good way to organize and analyze the data
in the Summer Olympics table?
Answer:
2:1
Step-by-step explanation:
The U.S. has twice as many gold medals as the Russian Federation. hope it helps :)
What criteria can you use to show these two triangles are congruent?
choice:
SSA
AAS
HL
SAS
Answer:
SAS
Step-by-step explanation:
You can use SAS (Side Angle Side) as they are in the correct order to use the Therom in order to prove they are equal.
Point H is the circumcenter of triangle JKL.
Which must be true?
O FH ≈ DH
O JF ≈ JD
O JH ≈ LH
O KF ≈ LD
If H is the circumcenter of triangle JKL then true statement is JH ≈ LH.
What is Property of Circumcenter?The circumcenter of a triangle is the point of intersection of the perpendicular bisectors of the triangle's sides. It is the center of the circumcircle, which is the circle passing through all three vertices of the triangle.
The circumcenter is equidistant from the three vertices of the triangle.
This means that the distance from the circumcenter to each vertex is the same.
i.e., the distance of point H is equal from J, K and L.
Then, the length of each of is equal which is
JH = KH = LH
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Can someone please give me the answer to this?
Find the value of the expression. Show your work. 15×x if x=5
Answer:
75
Step-by-step explanation:
if x = 5 then 15 × x = 15 × 5.
15 × 5 is 75
If 5 people receive 8 brownies, what is the fraction form of how many brownies each person will equally receive
If Donald can run 1/3 of a mile in one minute, how much
will he run in one day?
a model of a skyscraper is 6 inches tall if the model is scale 1 inch : 200 feet, the skyscraper is ___ feet tall
Answer:
1200 feet
Step-by-step explanation:
6 inches times 200 feet = 1200 feet tall
Answer:1200
Step-by-step explanation:
oh no :c, i ment to put the first answer as a 5/5 but he is correct for me!
A sequence can be generated by using an=an−1+2, where a1=8 and n is a whole number greater than 1.
What are the first 3 terms in the sequence?
a) 8, 10, 12
b) 8, 16, 32
c) 2, 16, 128
d) 2, 10, 18
The sequence an=an−1+2 is an arithmetic sequence
The first three terms in the sequence are (a) 8, 10, 12
How to determine the first three terms?The sequence is given as:
an=an−1+2
Where:
a1 =8
Start by calculating a2 using:
a2=a1+2
This gives
a2=8+2 = 10
Calculate a3 using:
a3=a2+2
This gives
a3=10+2 = 12
So, we have:
a1 = 8, a2 = 10 and a3 = 12
Hence, the first three terms in the sequence are (a) 8, 10, 12
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Classify the triangle.
Answer:
This looks like an acute triangle
Step-by-step explanation:
This looks like an actue triangle because all of the sides look less than 90 degrees
Also you can use prossess of elemination:
It is not a right triangle because it does not have a 90 degree angle
it is not a obtude triangle because the angles do not look grather than 90 drgress
and this is not an equlateral triangle because the angles and not all the same.
So this leave acute triangle
5. In a fruit basket if there are 2 dozen bananas out of which 5 are
rotten, find the percentage of bananas which are in good
condition?
What is the surface area of 20cm 7cm 6cm
Answer:
840
Step-by-step explanation:
20 x 7 = 140
140 x 6 = 840
Look at △ABC and △DEF on this coordinate grid.
Which transformation shows that △ABC and △DEF are similar?
A
a dilation of △ABC with a scale factor of 2
B
a translation of △ABC 1 unit up and 3 units to the right
C
a dilation of △ABC with a scale factor of 12
D
a translation of △ABC 3 units up and 3 units to the right
Answer:
Step-by-step explanation:
I will love to help but the answer sorry... :(