Which of the following could be classified as a census?
A.) a survey of a percentage of each state’s population about voting choices
B.) a survey of each student in a school about school lunch options
C.) a survey of all the children in a supermarket to determine the favorite cereal brands of the general population
D.) a survey of all the women on Main Street to determine the current movie preferences of all people over age 20
Answer:
the answer should be c..
4x +7y =-14
X + 4y =-8
Answer:first one is 5 and second one is -4
Step-by-step explanation:
In the diagram below, what is the measure of the missing angle?
Answer:
Answer is 62 degrees.
Step-by-step explanation:
The sum of all angles of a triangle is 180°
x + 70 + 48 = 180
x + 118 = 180
x = 180 - 118
x = 62
find the value of x
7x+2=16
I need the answer thank you
Answer:
A. 106
B. 25
Step-by-step explanation:
A. 33 times 2 = 66
66 Plus the 40 for the membership
66 + 40 = 106
B. 90 - 40 = 50 (40 from the membership)
50 divided by 2 = 25
The 6th term of (x^3− 1) ^8
Answer:
=x24−8x21+28x18−56x15+70x12−56x9+28x6−8x3+1
Step-by-step explanation:
=(x3−1)8
=(x3−1)*(x3−1)*(x3−1)*(x3−1)*(x3−1)*(x3−1)*(x3−1)*(x3−1)
=x24−8x21+28x18−56x15+70x12−56x9+28x6−8x3+1
How do you think statistics may at times not say something? How can a well-designed study be used to carefully say everything that is important about a population? Is it possible to do so?
Answer:
While statistics are extremely valuable, they are also notorious for being a means that people use to make false and misleading arguments. Also far too often statistics are obtained by taking a sample from a larger group and assuming the whole group has the same characteristics as the sample.
A sample provides a smaller set of the population for review, that delivers data that is useful to represent the whole population. Surveying a smaller sample, as opposed to the entire population, can save precious time for researchers and offer urgent data.
Step-by-step explanation:
Hope it is helpful.....
Q4 - Exam prep: Missing values
Audrey measures all 7 pencils in her pencil case and writes the first 6 lengths down.
12.4 cm, 12.6 cm, 13 cm, 13.4 cm, 13.5 cm, 13.3 cm
Audrey calculates the mean length of all 7 pencils to be 13.1 cm.
Find the length of the missing pencil.
cm
[2]
Answer:
the missing pencil length is 13.5 cm
Step-by-step explanation:
The computation of the length of the missing pencil is shown below:
Let us assume the missing pencil be x
Now
(12.4 cm + 12.6 cm + 13 cm + 13.4 cm + 13.5 cm + 13.3 cm + x) ÷ 7 = 13.1 cm
(78.2 cm + x) ÷ 7 = 13.1 cm
78.2 cm + x = 91.7 m
So, x would be
= 91.7 cm - 78.2 cm
= 13.5 cm
hence, the missing pencil length is 13.5 cm
One number is nine more than another number. If the sum of the number is 65, find both numbers
Answer:
Step-by-step explanation:
x+x+9=65
2x=56
x=28
28,37
Answer:
one number= 28, other number= 37
Step-by-step explanation:
9+x+x=65
9+2x=65
2x=56
x=28
A piece of wire is 240 cm long.
Peter cuts two 45 cm lengths off the wire.
He then cuts the rest of the wire into as many 40 cm lengths as possible.
Work out how many 40 cm lengths of wire Peter cuts.
Answer:
so 240-90cm he cut off=195cm. Then 45x2=80cm so 195-90cm=105cm.
Therefore, 105 divided by 40=2.625 so he cut off 6 pieces of 40cm lengths overall
Step-by-step explanation:
PLEASE HELP! DUE TONIGHT
Solve x + 3 = - 10
A.x = -13
B. x = 13
C. x= 7
D. x = - 7
Answer:
The answer is A. x= -13
Step-by-step explanation:
The way that you solve it is change the positive 3 to negative and adding the negative 3 to negative 10.
16 points scored in 4 games: 48 points scored in 8 games
Answer:
4:6
Step-by-step explanation:
I need the equation for the answer 4a = 32
Answer:
a = 8
Step-by-step explanation:
Isolate the variable, a. Note the equal sign, what you do to one side, you do to the other.
Divide 4 from both sides of the equation:
(4a)/4 = (32)/4
a = 32/4
a = 8
8 is your answer for a.
~
1 more pls helppppppp
Answer:
A? I think but also it may not be but that's what I think good luck
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
Answer:
i'd say it's "a"
Step-by-step explanation:
cause x= - 1/2, 6/5 so the product of these two is 7/10
Help I will be marking brainliest!!!
A. 18√3
B. 56√3
C. 36√3
D. 56
Show work, if possible. Thanks❤️
=============================================
Explanation:
We'll need the tangent rule
tan(angle) = opposite/adjacent
tan(R) = TH/HR
tan(30) = TH/54
sqrt(3)/3 = TH/54 ... use the unit circle
54*sqrt(3)/3 = TH .... multiply both sides by 54
(54/3)*sqrt(3) = TH
18*sqrt(3) = TH
TH = 18*sqrt(3) which points to choice A as the final answer
----------------------
An alternative method:
Triangle THR is a 30-60-90 triangle.
Let x be the measure of side TH. This side is opposite the smallest angle R = 30, so we consider this the short leg.
The hypotenuse is twice as long as x, so TR = 2x. This only applies to 30-60-90 triangles.
Now use the pythagorean theorem
a^2 + b^2 = c^2
(TH)^2 + (HR)^2 = (TR)^2
(x)^2 + (54)^2 = (2x)^2
x^2 + 2916 = 4x^2
2916 = 4x^2 - x^2
3x^2 = 2916
x^2 = 2916/3
x^2 = 972
x = sqrt(972)
x = sqrt(324*3)
x = sqrt(324)*sqrt(3)
x = 18*sqrt(3) which is the length of TH.
A slightly similar idea is to use the fact that if y is the long leg and x is the short leg, then y = x*sqrt(3). Plug in y = 54 and isolate x and you should get x = 18*sqrt(3). Again, this trick only works for 30-60-90 triangles.
An amusement park reduced its admission price to $15.50 per day, but now charges $1.50 per ride. Mark has $26 to spend on admission and rides. Write and solve an equation to find how many rides Mark can ride in one day.
what is the 10 time tables
Answer:
ugh wdym like 10 20 ,30 40 and so on ....
Answer10 20 30 40 50 60 70 80 90 100 110 120
Step-by-step explanation:
10x1=10
10x2=20
10x3=30
10x4=40
10x5=50
10x6=60
10x7=70
10x8=80
10x9=90
10x10=100
10x11=110
10x12=120
pls help i will give you like and brainliest if you are correct!!!
Answer:
+9.2=7.6x
x+9.2=38x
______
5
Solution
=1.393939393
Caroline is planning on reducing her working schedule and only work 7 hours each day for 4 days a week work out the percentage reduction in Caroline's earnings if she decides to go ahead with her plan
The percentage reduction in Caroline's earnings if she decides to go ahead with her plan is 30%.
How to calculate the value?Since Caroline works 8 hours each day for 5 days a week and she's earns £11 per hour. The amount earned for the week is:
= (80 × 5 × £11)
= £440
When she is planning on reducing her working schedule and only work 7 hours each day for 4 days a week. The amount will be:
= (4 × 7 × £11)
= £308
The percentage reduction will be:
= Difference on amount / Old amount × 100
= (440 - 308) /440 × 100
= 132/440 × 100
= 0.3
= 30%
Learn more about earnings on:
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Caroline works 8 hours each day for 5 days a week. She's earns £11 per hour. Caroline is planning on reducing her working schedule and only work 7 hours each day for 4 days a week work out the percentage reduction in Caroline's earnings if she decides to go ahead with her plan
Answer ASAP pls pls
A store manager earns
$
24.00
per hour. If the manager works
8
hours one day and donates
1
10
of the day’s earnings to charity, how much of the earnings are left?
Answer:
192
Step-by-step explanation:
on edge
Answer:
116.1
Step-by-step explanation:
what is the value of x?
12
15
20
24
Answer:
15
Step-by-step explanation:
I WOULD LIKE AN ACRUAL EXPLANATION, I NEED TO UNDERSTAND THIS, THANK YOU
csc^-1 4.25 to degrees
9514 1404 393
Answer:
13.609°
Step-by-step explanation:
The csc^-1 function is the arccosecant function. It gives the angle whose cosecant is given. If we let A represent that angle, your statement is ...
A = csc^-1(4.25)
It is used to solve the relation ...
4.25 = csc(A)
__
Some calculators can give you the value directly (see attached). Most cannot. In any event, you need to make sure the angle mode for the calculator is set to degrees.
When your calculator does not have the csc^-1 function, you can make use of the trig identity ...
csc(x) = 1/sin(x)
In the above equation, this becomes ...
4.25 = 1/sin(A)
sin(A) = 1/4.25 . . . . . solve for sin(A)
All scientific and graphing calculators will have the inverse sine (arcsine) function.
A = sin^-1(1/4.25)
A ≈ 13.609° . . . . . . . calculator mode in Degrees
_____
Additional comment
For inverse functions, especially inverse trig functions, I find it useful to read them as ...
csc^-1(x) ⇒ "the angle whose cosecant is x"
sin^-1(x) ⇒ "the angle whose sine is x"
This reminds me that the value it gives is an angle (degrees or radians), and the argument it takes is a pure number (one with no units).
Jessica had a group of friends over to celebrate her birthday. Each person ate 3/8 of a pizza. Five friends came over. What model would show the total amount of pizza Jessica's friends ate
Below is the number of minutes Leo played during each of his six basketball games,
17.50, 23.00, 24.00,
9.00, 12.25, 14.75
Using the data, create a histogram.
Answer:is 24.00,23.00,17.50,14.75,12.25,9.00 is the numbers in order that is a hint
Step-by-step explanation:
Answer:
This is the correct histogram below =D
Step-by-step explanation:
PLEASEEEEEEEEEEE HELP ME IT'S THE LAST QUESTION
Answer:
I think it's 2-3, but I'm not sure.
Step-by-step explanation:
Sorry if I get it wrong
how do i do sohcahtoha
Answer:
you mean trigonometry i'm assuming
but essentially:
soh = sin theta (the angle) = opposite length/hypotenuse length
cah = cos theta (angle) = adjacent length/hypotenuse length
toa = tan theta (angle) = opposite length/adjacent length
Step-by-step explanation:
George is required to produce 500 frames for an art gallery. He spent $100 on the wood required for all these frames. He also spent $50 in polishing all the final frames. He rented two floors of an art gallery for about $700. What selling price should George charge the art gallery if he wants to break even?
Answer:
George should charge 1.70$ for each frame to break-even.
Step-by-step explanation:
Variable cost for the frames:
Wood + polishing = $100 + $50 = $150
Variable cost per frame would be:
$150/ 500 = $0.30
The fixed cost of the operation is $700.
George has to make 500 frames.
Fixed cost / (Selling price per unit – variable cost per unit) = 500
$700 / (Selling price per unit - $0.30) = 500
700 = 500 (Selling price per unit – 0.30)
700 = 500 * Selling price – 500 * 0.3
700 = 500 * Selling price – 150
(700 + 150) / 500 = Selling price
850 / 500 = 1.7
one hundred and sixty-two thousandths as a decimal
Answer:
0.0162
Step-by-step explanation:
Cause it is
Answer:
0.162
Step-by-step explanation:
one hundred and sixty-two thousandths
162/1000 = 0.162