Answer:
it would be 4 days
frequency is the number of days in this problem
the number of questions is on the bottom part and the days are on the left part
Solve for X, show work PLS =)
½(4x+2)=2x-4
The scatter plot shows the number of absences in a week for classes of different sizes. Trevor concluded that there is a positive correlation between class size and the number of absences.
image
Which of the following statements BEST describes why Trevor’s conclusion was incorrect?
A.
The data shows a negative relationship between class size and number of absences.
B.
The data shows no relationship between class size and the number of absences.
C.
The largest class does not have the most absences.
D.
The smallest class does not have the least number of absences.
The statement which BEST describes why Trevor’s conclusion was incorrect is B. The data shows no relationship between class size and the number of absences.
What is Scatterplots?Scatterplots are the plotting of set of points on a vertical axis and an horizontal axis. The shows the correlation extent between the numbers of the observed quantities.
Given a scatterplot which shows the number of absences in a week for classes of different sizes.
From the scatterplot, we can see that,
For a class size of 15, there are 2 kind of absences, 2 and 10.
For class size of 20, there is a positive correlation.
Then again it increases and decreases for various sizes.
So there is no relationship in particular with the 2 variables.
Hence the correct option is B.
Learn more about Scatterplots here :
https://brainly.com/question/29366075
#SPJ2
Mr Malloy wants to make sure amo and max get the best possible grade after five tests and can either give a grade based on the median or the mean
Answer:
• Median for Amo
• Mean for Max
Step-by-step explanation:
Amo's mean score:
= (97 + 92 + 89 + 55 + 90)/ 5
= 84.60
= 85
Max's mean score:
= (68 + 97 + 65 + 92 + 65) / 5
= 77
Amo's median:
First arrange the numbers in ascending order:
55, 89, 90, 92, 97
Median is middle which is 90.
Max's median:
65, 65, 68, 92, 97
Median is 68
Mr Javier should use Median for Amo and Mean for Max.
A number cube is rolled twice. What is the P (2 and then odd number)?
Answer:
P (2 and then odd number) = [tex]\frac{1}{12}[/tex]
Step-by-step explanation:
Probability refers to chances of occurrence of any event.
A number cube is rolled twice.
Possible outcomes are as follows:
[tex](1,1),(1,2),(1,3),(1,4),(1,5),(1,6)[/tex]
[tex](2,1),(2,2),(2,3),(2,4),(2,5),(2,6)[/tex]
[tex](3,1),(3,2),(3,3),(3,4),(3,5),(3,6)[/tex]
[tex](4,1),(4,2),(4,3),(4,4),(4,5),(4,6)[/tex]
[tex](5,1),(5,2),(5,3),(5,4),(5,5),(5,6)[/tex]
[tex](6,1),(6,2),(6,3),(6,4),(6,5),(6,6)[/tex]
Total number of outcomes = 36
Favorable outcomes include outcomes with 2 and then odd number.
So,
Favorable outcomes are [tex](2,1),(2,3),(2,5)[/tex]
Number of favorable outcomes = 3
Probability is equal to number of favorable outcomes divided by total number of outcomes.
Therefore,
P (2 and then odd number) = Number of favorable outcomes ÷ Total number of outcomes
[tex]=\frac{3}{36}[/tex]
[tex]=\frac{1}{12}[/tex]
find the slope of the line that passes through the given points (9, -3) and (9, 4)
Answer: No slope.
Step-by-step explanation:
No slope, the x values are the same yet they have different Y values so there isn't a slope and this isn't a function.
what is the difference for 1/2 and 3/8
Answer:
1/8
Step-by-step explanation:
1/2-3/8
4/8-3/8=1/8
True or false: The following table is linear.
The table is linear because it goes up at a consistent rate each time.
Which number is rational?
Answer:
root 16
Step-by-step explanation:
Answer:
2nd
Step-by-step explanation:
I hope it helps.stay learning
Solve for b. Thank you
Answer:
c
Step-by-step explanation:
simplify both sides then isolate the variable
Answer:
C
Step-by-step explanation:
In order to find "b" (the y-intercept) from the equation y=mx+b ... If you know the slope (m), use any one of the given points by substituting the Y value of the given point for y, and substituting the X value of the given point for x. Solve for b = Y-mX.
The Area of a rectangular garden can be represented by the expression 15x 2 - 7x - 2. The length of the garden can be represented by 5x + 1. Write an expression that represents the perimeter of the garden.
Answer:
16x-2
Step-by-step explanation
Area of the garden = length × width
Substitute the given value
15x 2 - 7x - 2. = 5x+1 × width
Factorize the area
15x^2 - 7x - 2.
15x²-10x+3x -2 =0
5x(3x-2)+1(3x-2)
5x+1(3x-2)
Hence other side so be 3x-2
Perimeter = 2(L+W)
P = 2(5x+1+3x-2)
P = 2(8x-1)
P = 16x-2
Hence the expression that represents the Perimeter is 16x-2
Can someone please help me and write out the answer
Answer:
y = 2x+1
Step-by-step explanation:
From the question,
Using the equation of a straight line
y = mx+c................. Equation 1
Where m = slope of the line, c = intercept on the y axis.
From the graph, The two point co-ordinate shown os
Point 1 = (-2,0)
Point 2 =(6,4)
s = (y₂-y₁)/(x₂-x₁).............. Equation 2
Where y₂ = 6, y₁ = -2, x₂ = 4, x₁ = 0
Substitute into equation 2
s = (6-(-2))/(4-0)
s = (6+2)/4
s = 8/4
s = 2.
Also from the graph,
c = 1
Substitute these values into equation 1
y = 2x+1
Hence the equation of the line is y = 2x+1
find the slope.....find the slope
Answer:
Rise of 2 Run of 5
so its 2/5
Step-by-step explanation:
Answer:
2/5
Step-by-step explanation:
The formula for slope is [ y2-y1/x2-x1 ].
2-0/5-0
2/5
Best of Luck!
Give the diagram below find the value of x
PLEASEE HELP A GIRL IS BAD AT MATH WILL GIVE 30 POINTS
Answer:
Well this is Same side interior angles which would mean that its supplementary or 180.
So we can just,
4x-2+17x+14=180
Combine like terms
21x+12=180
Perform inverse
21x=168
Divide/isolate
x=8
So the value of (x) is 8
Step-by-step explanation:
Well here’s a little tip that might help
So in order to identify interior/exterior angles you have to find the location. The two lines are whats separates the inner and the outter.
The Outter are outside the two parralel lines, their not in between. There are 4 exterior angles.
The inner are the 4 angles between the two parralel lines. There are 4 interior angles.
So there are 5 different ways you would usually hear them.
Alternate interior angle
Alternate exterior angle
Same side exterior (or better known as Converese of the same side exterior)
Same side interior (better known as the converse of the same side interior)
Corresponding
Alternate is basically different sides, but they gotta be only one angle choice, exterior or interior, if correct it makes this slash or back slash if you connect the points.
Same side is basically same side and they have to be the right type (exterior/ interior)
Corresponing has to be the same side also but they have to have.One interior and one exterior.
Corresponing angles are congruent (equal)
Alternate exterior/interior are congruent (equal)
Same side exterior/interior Are supplemenaty (they equal 180)
The parallelogram shown below has an area of 35 units^2 2 squared. Find the missing height. h =h=h, equals units
Answer:
h = 5 units
Step-by-step explanation:
Given that,
The area of the parallelogram, A = 35 unit²
In the attached figure, we can see that the base is 7 unit.
We know that,
Area of a parallelogram, A = b × h
So,
[tex]h=\dfrac{A}{b}\\\\h=\dfrac{35}{7}\\\\h=5\ units[/tex]
So, the value of h is equal to 5 units.
What's the radius of the big cylinder?
Answer:
I think 56.52
Step-by-step explanation:
To find the radius you'll have to do C=2(3.14)(9)=56.52
for brainiest:):):):):):):)
Answer:
15 = 0.025
16= 3 years
Step-by-step explanation:
15.
I=prt
15= (200)(r)(3)
200(3) = 600r
15 divided by 600r = 40 (0.025)
------------------------------------------------------
16.
I=prt
[tex]t= \frac{I}{Ixp} \\t= \frac{90}{0.05x600} \\t= 3[/tex]
t= 3 years
please helpppppp!Will mark brainlyist
Answer:
both
Step-by-step explanation:
good because of globalism
bad because of colonialism
The graph of a quadratic function is shown below. An equation that represent the function could be. Explain how you got your answer
Answer:
option 4
Step-by-step explanation:
option 2 and 4 are the more closest options but option 2 is a graph function between the negative numbers, so the answer is option 4.
find the area of each sector shown (the shaded section)
Answer:
The area of the sector (shaded section) is 29.51 [tex]m^{2}[/tex].
Step-by-step explanation:
Area of a sector = (θ ÷ 360) [tex]\pi[/tex][tex]r^{2}[/tex]
where θ is the central angle of the sector, and r is the radius of the circle.
From the diagram give, diameter of the circle is 26 m. So that;
r = [tex]\frac{diameter}{2}[/tex]
= [tex]\frac{26}{2}[/tex] = 13 m
θ = 360 - (180 + 160)
= 360 - 340
= [tex]20^{o}[/tex]
Thus,
area of the given sector = [tex]\frac{20}{360}[/tex] x [tex]\frac{22}{7}[/tex] x [tex](13)^{2}[/tex]
= [tex]\frac{20}{360}[/tex] x x [tex]\frac{22}{7}[/tex] x 169
= 29.5079
The area of the sector (shaded section) is 29.51 [tex]m^{2}[/tex].
plz write it in radical form no links and no radom leters plz
At the school book fair 3/5 of the books are nonfiction books. Of the nonfiction books 1/4 are animal books. What fraction of the book are animal books?
Answer:
3/20 or 0.15
Step-by-step explanation:
if 3/5=nonfiction and as a part of that 3/5: 1/4=animal
that means that 3/20 (or 0.15) of those books are non fiction animal books
(to get answer you can type "1/4 of 3/5" into calculator!)
Answer:
3/20 or 0.15
explanation: In arithmetic, the number is expressed as a quotient, in which the numerator is divided by the denominator. In a simple fraction, both are integers. A complex fraction has a fraction in the numerator or denominator. In a proper fraction, the numerator is less than the denominator. In Mathematics, fractions are represented as a numerical value, which defines a part of a whole. A fraction can be a portion or section of any quantity out of a whole, where the whole can be any number, a specific value, or a thing. Let us understand this concept using an example. The following figure shows a pizza that is divided into 8 equal parts. Now, if we want to express one selected part of the pizza, we can express it as 1/8 which shows that out of 8 equal parts, we are referring to 1 part.
It means one in eight equal parts. It can also be read as: 1 by 8. If 3/5=nonfiction and as a part of that 3/5: 1/4=animal
that means that 3/20 (or 0.15) of those books are non fiction animal books
To get the answer you can also type 1/4 of 3/5 into your calculator.
All fractions consist of a numerator and a denominator and they are separated by a horizontal bar known as the fractional bar. Proper fractions are the fractions in which the numerator is less than its denominator. For example, 5/7, 3/8, 2/5, and so on are proper fractions.
If you bought a stock last year for a price of $103, and it has risen 7% since then, how
much is the stock worth now, to the nearest cent?
Answer:
the stock is worth $110.21
Step-by-step explanation:
The first thing you want to do is multiply 0.07 and 103, to find out what 7% of 103 is. When you multiply those two numbers you are going to get 7.21. You are then going to add 103 and 7.21 to find out how much it would be worth now.
Answer:
$110.21
Step-by-step explanation:
well 7% of 103 is 7.21 so if you add that to 103 it = 110.21
Which is the best simplification of (2^4 x 3*2)/(2 x 3)?
Answer:
16
Step-by-step explanation:
What is the equation for the hyperbola shown?
X
V2
= 1
602
112
72
-
x2
112
1
602
72
x2
=
1
602
112
72
112
x2
602
1
Answer:
[tex]\frac{x^{2} }{3600} - \frac{y^{2} }{121} = 1[/tex]
Step-by-step explanation:
Since the hyperbola opens left and right with a center at the origin, then
[tex]\frac{x^{2} }{^{2} } - \frac{y^{2} }{b^{2} } = 1[/tex]
In the graph a = 60 and b = 11
So
[tex]\frac{x^{2} }{60^{2} } - \frac{y^{2} }{11^{2} } = 1[/tex].
[tex]\frac{x^{2} }{3600} - \frac{y^{2} }{121} = 1[/tex]
What is the absolute value equation below:
|x|=7∣
THE ANSWER IS 7 because i did the math
PLEASE HELP
I WILL MARK BRAINLIEST
Answer:
False
Step-by-step explanation:
They don't look alike
Another question how fast is Andrew traveling?
Answer:
DannyStep-by-step explanation:
Danny's speed is given:
15 mphAndrew's speed is found from the table.
Since its the direct relationship, we find it using one pair of values:
Speed = miles/times = 21.75/1.5 = 14.5 mphDanny is faster as 15 mph > 14.5 mph
Speed =Distance/Time
Here speed is equal to slope of box
m=y/xm=29/2m=14.5mphDanny is faster as his one is 15mph
Evaluate g(10) if g(x)=12x−4.
Answer:
116
Step-by-step explanation:
plug in the 10 in the x values to get 12(10)-4 which is 116.
Solve the inequality for x
8^x>24
Answer:
Step-by-step explanation:
Remark
I hope you have some idea how to make your calculator use logs. This problem is impossible without being able to take the log of each side.
Solution
log(8)^x > log 24 Logs lets you bring down x and multiply it by log24
x log 8 > log 24 Be careful what you do next. Don't use log 3
x > log(24)/log(8)
x > 1.3802/0.9031
x>1.5284
As wrong as this may look, it is correct.
Check it
8^1.5284 = 24.00395
The difference is that 1.5284 has been rounded just a slight bit.
On Tuesday the temperature is 1 ºC. By Wednesday it has dropped to –2 ºC. The temperature drops by twice as much from Wednesday to Thursday. What is the temperature on Thursday?
Answer: [tex]-8^{\circ}C[/tex]
Step-by-step explanation:
Given
The temperature on Tuesday is [tex]1^{\circ}C[/tex]
Temperature drops to [tex]-2^{\circ}C[/tex] on Wednesday
Net drop in temperature [tex]1-(-2)=3^{\circ}C[/tex]
The temperature drops twice from Wednesday to Thursday
[tex]\Delta T=2\times 3=6^{\circ}C[/tex]
Temperature on Thursday
[tex]\Rightarrow -2-6=-8^{\circ}C[/tex]