3
Select the correct answer.
Which value is needed to determine a confidence interval for a sample mean?
O A.
the sample proportion
O B.
the standard error of the mean
O C.
the margin of error for the proportion
OD
the population size
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Answer:
A
Step-by-step explanation:
I think I am not sure I just started to do this in school...
Jasmine spent 30$ on supplies to make 60 cupcakes for a bake sale.jasmine wants to have a profit of more than 90$.Write an inequality to find the price,p jasmine could charge for each cupcake.
(i need to find what inequality finds the answer)
ALL MY 100 POINTS FOR HELP PLEASE!!
Answer:
$1.50
Step-by-step explanation:
In a litter of 7 kittens, each kitten weighs less than 3.5 ounces. Find all of the possible values of the combined weights of the kittens.
3.4 x 7 = 23.8 ounces
3.3 x 7 = 23.1 ounces
3.2 x 7 = 22.4 ounces
3.1 x 7 = 21.7 ounces
3 x 7 = 21 ounces
and so on, use a calculator and go until hit 0.1 btw all these answers r written in bold. :)
The probability of the car having 4 doors is 1/2
What does that mean?
(A)It is neither unlikely nor likely
(B)It is likely
(C)It is impossible.
(D)It is definite.
Answer:
(A)It is neither unlikely nor likely
Step-by-step explanation:
answer is b
hope this helps
4 Which number line represents the solution to the inequality 4 + 2x <6
Answer:
h
Step-by-step explanation:
H
PEMDAS" notes and Integer rules
*
What is the value of this expression?
(6.3D Lesson 1)
-6. (-2 + 5)
A 42
B -18
с
18
D Not here
Answer:
B
Step-by-step explanation:
Answer:
-18
Step-by-step explanation:
First we start with brackets
(-2+5)= 3
Now
-6×3=-18
PLZ ANSWER AND SHOW WORK TY :D
Answer:
[tex]-\frac{\sqrt{21}}{2}[/tex]
Step-by-step explanation:
ASTC (I use a sentence to memorize: All Students Take Calculus):
Q1 - All functions are positive
Q2 - Sine is positive (Cosecant is positive as well) (all others negative)
Q3 - Tangent is positive (Cotangent is positive as well) (all others negative)
Q4 - Cosine is positive (Secant is positive as well) (all others negative)
Applying ASTC:
Secant is negative, so it can't be in quadrant 1, and quadrant 4.
Quadrant 2 - Sine and Quadrant 3 - Tangent are left.
Cosecant is positive so it can't be in quadrant 3.
Therefore, angle x is in Quadrant 2 or QII
Secant is hypotenuse / adjacent
5 = hypotenuse (hypotenuse is never a negative number)
-2 = adjacent
use pythagorean theorem to solve for opposite (bc tan = opp / adj)
[tex](-2)^2+o^2=5^2;4+o^2=25;o^2=21;o=\sqrt{21}[/tex]
tanx = [tex]\frac{\sqrt{21}}{-2}=-\frac{\sqrt{21}}{2}[/tex]
What is 12/7 as an mixed number ??
Answer:
1 5/7
Step-by-step explanation:
[tex]1 \frac{5}{7} [/tex]
is the answer if you meant to say mixed fraction
Find the graph to the equation below plz 20 POINTS
Answer:
the last one option 4
Step-by-step explanation:
A group of students were asked how many sisters they have visited in their lifetime. Below is a lot plot of their responses. How many observants are in this data set?
HELP! ILL GIVE BRANLIEST :(
Answer:
B
Step-by-step explanation:
since x is GREATER than -25, the shaded part has to be on the right of -25
Answer: B
Step-by-step explanation:
NEED HELP FAST PLS CLICK TO SEE
during a nature walk jayden identified 20 animals and plants.1/4 of what he identified were animals.how many were animals?
A data set is made up of these values.
3, 3, 4, 5, 6, 7, 10
Find the interquartile range.
A. 3 - 3 = 0
B. 10 - 7 = 3
C. 7 - 3 = 4
D. 10 - 3 = 7
Answer:
C. 7 - 3 = 4
Step-by-step explanation:
Given
[tex]Dataset: 3, 3, 4, 5, 6, 7, 10[/tex]
Required
The IQR
The IQR is calculated using:
[tex]IQR = Q_3 - Q_1[/tex]
Where:
[tex]Q_3 \to[/tex] Median of the upper [tex]half[/tex]
[tex]Q_1 \to[/tex] Median of the lower [tex]half[/tex]
The dataset has 7 values, so the median is: (7 + 1)/2 =8/2 = 4th position.
Split to two, we have:
[tex]Lower \to 3, 3, 4[/tex]
[tex]Median \to 5[/tex]
[tex]Upper \to 6, 7, 10[/tex]
The lower half has 3 data; So, the median is the 2nd position.
Hence:
[tex]Q_1 = 3[/tex]
The upper half has 3 data; So, the median is the 2nd position.
Hence:
[tex]Q_3 = 7[/tex]
So, the IQR is:
[tex]IQR = Q_3 - Q_1[/tex]
[tex]IQR = 7 - 3[/tex]
[tex]IQR = 4[/tex]
does anyone know the answer for this?
Answer:
8 cm
Step-by-step explanation:
The area of the shaded portion is:
[tex]a = \pi \times (( {r1)}^{2} - {(r2}^{2})) [/tex]
A=39π cm^2
r1 is the radius of the large circle
r2=5 cm
So,
[tex]39\pi = \pi \times (( {r1)}^{2} - {5}^{2} ) \\ r1 = 8 \: cm[/tex]
Help me pls thanks so much
Answer:
B. (50.27)
Step-by-step explanation: a = (pi)r^2
8/2 = 4
4^2 = 16
16(pi) = 50.27
You're welcome :)
Answer:
=50.285714
Step-by-step explanation:
Area of a circle is equal to πr^2
diameter = 8 so radius = 4
22/7x4x4
22/7x16
=352/7
=50.285714
Antonio watches a movie that is 1 hour and 45 minutes long. Which number line could show when Antonio watches the movie?
Answer:
1st one
Step-by-step explanation:
Answer:
Bottom left
Step-by-step explanation:
Those I-ready diagnostics suck don't they?
Factor the quadratic:
2x^2-7x+3
A calculation of the value of everything that you own minus the amount of money that
you owe.
Assets
Investment
Liabilities
Net Worth
Answer:
a
Step-by-step explanation:
the answer is asset because asset is the best option to be choosed
You would burn about 200 calories by walking for 1 hour. About how many calories would you burn if you walk for 15 minutes? PLS HELP ME!!!
Answer:
50
Step-by-step explanation:
So first just sort the times, and the number of calories:
200 calories -> 1hr
x -> 15 mins
So an hour is 4 times the amount of 15 mins, so all you need to do is divide 200 by 4. The answer is 50
The width of a rectangle measures (4d – 8) centimeters, and its length measures
(7d – 3) centimeters. Which expression represents the perimeter, in centimeters, of
the rectangle?
Answer:
(22d-22) cm
Step-by-step explanation:
perimeter= 2×(4d-8+7d-3)
= 2× (11d-11)
(22d - 22) cm
Answer:
(22d-22)cm
Step-by-step explanation:
Perimeter = 2 x (width + Length)
= 2 x [(4d – 8) + (7d – 3)]
= 2 x (11d-11)
= (22d-22)cm
A custodian plans to repaint some classroom bookcases. She has 5 1/4 gallons of paint. All of the bookcases are the same size and each requires 3/4 gallons of paint. How many bookcases will the custodian be able to repaint with that amount of paint?
Answer:
7 bookcases
Step-by-step explanation:
Find how many bookcases the custodian can repaint by dividing 5.25 by 0.75:
5.25/0.75
= 7
So, the custodian will be able to repaint 7 bookcases
What is the value of x in triangle PQR below?
Q
389
489
R
[Not drawn to scale)
88
0940
1329
1420
Mark this and retum
Save and Exit
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Submit
Answer:
Hello! answer: x = 94
Step-by-step explanation:
Triangles add up to 180 degrees so we just add up the two measures we do have so 48 + 38 = 86
Now we subtract that from 180 to find x so
180 - 86 = 94 So 94 is x Hope that helps!
Point P is located on the segment between point A (1,4) and point D (7,13). The distance from A to P is twice the distance from
Pto D. What are the coordinates of point P?
Answer: Point P is at (3, 7)
Step-by-step explanation: the distance from point a to point B is 10.8. 10.8 divided by 3 is 3.6, so you have to find a point that 3.6 from point a. Using a graph, I found the answer to be (3,7)
Which description best summarizes the correlation between the calls made and the texts sent
Mm
Answer:
Weak positive
Step-by-step explanation:
From. Visual inspection of the scatter plot, the line of best fit will have a positive slope has values of x tends to increase with a corresponding increase in the value of y.
However, the points are scattered across the plotting area meaning that most of the points will be a bit farther away from the regression line. This means a weak correlation between the x and y variables will be obtained. Since the slope is positive, theb the relationship between the variables based on the scatterplot interpretation is a weak positive correlation.
The square canvas of a painting has an area of 64 ft2. How many feet of border should be ordered to make a frame for the painting?
4 ft
8 ft
32 ft
128 ft
Which statement best describes the association between variable X and variable Y?
Answer:
weak, negative association
Step-by-step explanation:
If variables have a strong association, the points will form a clear line/curve. Since the graph's points are scattered and fairly chaotic, we can say the association is weak.
Positive associations trend upwards and negative associations tend downwards. This graph seems to overall tend downwards, so we can say the association is negative.
The circumference of a circle is about 33.912 inches. The circle's radius is __ inches.
Use 3.14 for π.
Answer:
5.4
Step-by-step explanation:
Circumference = 2 x 3.14 x radius
To find this information, you must first divide:
33.912 ÷ 2 = 16.956
Then, divide:
16.956 ÷ 3.14 = 5.4
So then your answer is:
Radius = 5.4
Hope this helps you out! : )
These marbles are placed in a bag and two
of them are randomly drawn.
What is the probability of drawing two
yellow marbles if the first one is placed back
in the bag before the second draw?
Give your answer as a ratio, reduced to
simplest terms.
[?]
Hint: Multiply the probability of the 1st Event by the
probability of the 2nd Event to get your answer.
What is the sum of degrees of each vertex for a tree with 6 vertices?
a) 5
b) 6
c) 8
d) 10
Answer:
C: Is the Answer
Step-by-step explanation:
Really hope it'll help!!