Answer:
We know that our sample is a group of 50 randomly selected students.
First, we want to know the name of the sampling technique.
There are a lot of sampling techniques, but knowing that the students are selected randomly, we can conclude that this is the simple random sampling technique, where each individual is chosen entirely by chance (so all the students have the same probability of being chosen)
Now we want to know if the method is biased or not,
Always that we use the simple random sampling technique, we will have an unbiased sample.
A rectangular garden measures 9 feet wide by 12 feet long. If a hose costs $8 per foot, how much would it cost to place a hose
through the diagonal of the garden?
Answer:
120
Step-by-step explanation:
using the pythogorean thereom, we have 12^2+9^2=225
sqrt225=15
15*8=120
84 is what
percent of 311
Answer:
27,01%
Step-by-step explanation:
84/311 × 100%
= 27,01%.
If 6 lbs of nails are needed for each thousand lath, how many pounds are required for 4250 lath? Round your answer to the nearest tenth.
Answer:
Step-by-step explanation:
HELPPPPPPPPPPPPPPPPP
Answer:
Step-by-step explanation:
the variable n would have to be less then zero.. answer 1
Answer:
1
Step-by-step explanation:
if it has positive value that means that N is a negative number, that means its less than 0
frist one gets brainist the questions are all the the picture
Answer:
4m,18,-g
4*n
Step-by-step explanation:
you just select the terms
The length of a rectangle is two times
its width. If the perimeter of the
rectangle is 150 in, what is the length of
the rectangle?
Answer:
length=50
width=25
step-by-step explanation:
=length=2x
=width=x
=perimeter 2(l+b)
=2(2x+x)×150
=2x+x=150÷2
=2x+x=75
=3x=75
=x=75÷3
=25
=length=25×2=50
=width=25
hope it helps pls mark brainliest plsss
What is the solution to the system graphed below?
Answer:
(-4,-1) is the answer unless your asking for an actual equation
If DE = 10 in. and GH = 4 in., what is the length of the radius? Round to the nearest tenth. A 5.4 in. B 6.4 in. C 10.8 in. D 29.0 in.
Answer:
A. 5.4 in
Step-by-step explanation:
At the top of the line segment GH, you can see it ends on Circle D's circumference. Therefore, if you made a line segment from D to G, its length would be the radius. Lines DE and GH are perpendicular and make a 90 degree angle, so you can make line DG a hypotenuse, use pythagoreans theorem, and find the radius. However, since they intersect at a halfway point, you have to divide 10 and 4 by 2. 10/2 = 5 4/2 = 2 5^2 + 2^2 = r^2
5^2 = 25 and 2^2 = 4, so 29 = r^2. The square root of 29 is 5.385, or 5.4 inches.
I got a bit lazy answering this, but I hope it helps!
Answer:5.4
Step-by-step explanation:
Help I’ll give brainliest <33
Answer:
they are perpendicular. The slopes are opposite and reciprocal
Please help :) will give brainliest i PROMISE and ty
Answer:
12 is the complete length and 10 is the number of sides
12x10= 120
Answer:
3. P = 48 units A = 116 units²
Step-by-step explanation:
A = 12 x 12
= 144
Now we can subtract the missing areas. 4 x 4 = 16 and 6 x 2 = 12.
144 - 16 - 12
= 116 units²
P = 12 + 12 + 12 + 12
= 48 units
help please Write two numbers that multiply to the value on top and add to the value on bottom.
How much profit would the company make if they manufactured and sold 3 and one-half batches
(3500 tires)?
Answer:
-$60,000
Step-by-step explanation:
PLS HELP MEEEEE!!!!!
Answer:
102.3
Step-by-step explanation:
When multiplying dont consider the decimal point, multiply normally then add in the decimal point, youll know how because you count how many numbers/spaces after the decimal and that'll be where you put the decimal point from the right
Answer:
It should be 102.3 (click on the photo to see work)
Step-by-step explanation:
I hope this helps!!
Help I need help I don’t know how to do this
The ratio of the sides of a triangle is 2:5:3. If the perimeter of the triangle is 190 meters, what is the length of the longest side
Answer:
Step-by-step explanation:
Remark
Let x by the multiplying factor to make up 190 m.
2x + 5x + 3x = 190
10x = 190
x = 190/10
x = 19
The longest side is 5x
The longest side = 5 * 19 = 95
Expression equivalent to a^2-144b^2
Answer:
(a - 12b)(a + 12b).
Step-by-step explanation:
a^2 - 144b^2
This is the difference of 2 squares identity:
a^2 - b^2 = (a - b)(a + b)
So for the given expression we have:
(a - 12b)(a + 12b).
- (as a is square root of a^2 and 12b is the square root of 144b^2.).
Solve : 35 + 39x - 48
Answer:13+49x
Step-by-step explanation:Combine Like Terms
48-35 = 13
13+39x
The volume of a rectangular pyramid is 120 cm3. If the height of the base is 5 cm and the height of the pyramid is 12 cm, what is the length of the base of the pyramid?
Answer:
1. Volume of a cone: 1. V = (1/3)πr2h 2. Slant height of a cone: 1. s = √(r2 + h2) 3. Lateral surface area of a cone: 1. L = πrs = πr√(r2 + h2) 4. Base surface area of a cone (a circle): 1. B = πr2 5. Total surface area of a cone: 1. A = L + B = πrs + πr2 = πr(s + r) = πr(r + √(r2 + h2))
Step-by-step explanation:
1. Volume of a cone: 1. V = (1/3)πr2h 2. Slant height of a cone: 1. s = √(r2 + h2) 3. Lateral surface area of a cone: 1. L = πrs = πr√(r2 + h2) 4. Base surface area of a cone (a circle): 1. B = πr2 5. Total surface area of a cone: 1. A = L + B = πrs + πr2 = πr(s + r) = πr(r + √(r2 + h2))
15x-8-3x=16 pls help
Answer:
x=2
Step-by-step explanation:
Combine like terms, add 8 to both sides of the equation, simplify, divide both sides by the same term, simplify
Answer:
x = 2
Step-by-step explanation:
1. Combine like terms
15x - 8 - 3x = 16
1 2 − 8 = 1 6
2. Add 8 to both sides of the equation
1 2 − 8 = 1 6
+8 +8
3. Simplify
12x = 24
12x/12 = 24/12
x = 2
Five times a number minus twice another number equals twenty-two. The sum of the numbers is three. Let the first number = x and the second number = y. Find the two equations for this scenario.
Answer:
0A + B = 3AB
10 / B = 3 - (1/A)
10/B is between 2 and 3.
B = 5, A = 1
Step-by-step explanation:
you just need to do this but i dont know
pls help need it ASAP and pls explain and I WILL give a brainlist
:)
Answer:5/8
Step-by-step explanation:
you reduce 50 and 80 by 10 and you get 5/8
Answer:
5/8
Step-by-step explanation:
Look at the photo to answer the question
Answer:
A) c
B) d
Step-by-step explanation:
ASAP HELP ME IM NOT TRYING TO FAIL MY CLASSES JUST BY THIS ONE QUESTION!!!!!!
Answer:
B
Step-by-step explanation:
its be i know it i did it with my teacher
Answer:
The Answer Is A
Step-by-step explanation:
The Line Is Standing Above -5 And -1 There for What Is -1 + (-4) = -5
Find the Perimeter
and Area
of the following:
In the equation y=10x+30, what is the rate of change?
Answer:
the roc is 10
Step-by-step explanation:
Given line 1, with coordinates (-7,-3) and (4,7), and line
2 with coordinates (7,-7) and (-3, 4), find the slope of line 2
Answer:
-11/10 (fraction) or -1.1 (decimal)
Step-by-step explanation:
The slope formula is m=(y2-y1)/(x2-x1)
x1 = 7
x2 = -3
y1 = -7
y2 = 4
So, it’s: (4 - (-7))/(-3-7)
= (4+7)/(-3-7)
= (11)/(-10)
= -11/10 or -1.1
I hope this helps!
What is the area of the triangle?
A 96 cm2
B. 120 cm2
C. 192 cm2
D. 240 cm2
Answer:
D.)
Step-by-step explanation:
20x12=240
Just multiply
if one can of paint covers 60 square feet, how many cans of paint will she need.
Answer:
whats the question
Step-by-step explanation:
Look at the question below.
Answer:
60
Step-by-step explanation:
8 x 3 = 24
9 x 4 = 36
36 + 24 = 60
brainliest please
Answer:
C.
Step-by-step explanation:
8 x 3=24
9 x 4=36
24+36=60
Please help me I just don't understand!!!!!!!!!!!!!
Answer:
240pi
Step-by-step explanation: