A state government study surveyed a representative sample of child-care centers about childhood illnesses. Which statement BEST explains what makes the sample representative?
A
Every child-care center in the state participated in the study.
B
Every child-care center in the state had an equal chance of participating in the study.
C
Every child-care center was asked a series of randomly selected questions.
D
Every child-care center that participated must have reported childhood illnesses to the state.
Answer:
A
Step-by-step explanation:
5.2 times 9.3 times what equals 120.9 ?
Answer:
5.2x9.3x2.5=120.9
hope this helps have a great day :3 also can i get brainliest ty
Answer:
2.5
Explanation:
5.2×9.3×2.5=120.9
I got the answer by multiplyinh 5.2×9.3=48.36 then i divided 120.9 by 48.36 to get the answer which is 2.5
Find the mean absolute deviation for the data in the table. Round to the nearest tenth if necessary.
If 30% of a number equals 8, find 90% of that number.
Answer:
8.88
Step-by-step explanation:
I believe it is 8.88 becuase this question is asking to find 90% pf that number.
What do you need to do?
you have to make a proportion.
8/x 90/ 100
You would now cross multiply. 90* x = 90x 8*100= 800
the equation you would need is 90x = 800. divide them and you get 8.88.
ROUNDED: you get 9.
I believe this is correct sorry if it was incorrect.
a=1/2pa, solve for p
NO LINKS PLEASEE!! IM BEGGING YOU NO LINKSS!!!
Answer:
A = (1/2)Pa = Pa/2
You can multiply both sides by 2 to eliminate the fraction on the right side:
2A = 2(Pa/2) = Pa
Then divide both sides by a (or multiply both sides by 1/a) to leave P alone on the right side:
(2A)(1/a) = 2A/a = (Pa)(1/a) = P
Rewriting:
P = 2A/a
You could also have divided by a first then multiplied by 2; which you should do first does not matter in this example.
Step-by-step explanation:
what is the value of 3^3 + 7(2x -6), when x=4?
Answer:
The answer is 41.
Step-by-step explanation:
We plug in 4 for X:
3^3 + 7(2(4) -6)
The answer is 41.
A student is using a spinner with four equal sections numbered 1 through 4. He also tosses a fair coin. What is the correct sample space for this compound event?
A. {H, T}
B. {(HT, 1), (HT, 2), (HT, 3), (HT, 4)}
C. {(1,H), (2,H), (3,H), (4,H), (1,T), (2,T), (3,T), (4,T)}
D. {1, 2, 3, 4}
Answer:
C. {(1,H), (2,H), (3,H), (4,H), (1,T), (2,T), (3,T), (4,T)}
Pease no links i would just like the answer ASAP
The volume of a right rectangular prism is 70 7/8 cubic feet and its base is a square with a side length of 4 1/2 feet. what is the height?
Answer:
7/2 feet
Step-by-step explanation:
Volume of Right Rectangular Prism: V = w * h * l
You are given the volume, and the base (which would include l and w)- and are told to find h.
70 7/8 cubic feet = 4 1/2 feet * h * 4 1/2 feet (simplify the right side)
70 7/8 cubic feet = 81/4 feet squared * h (divide both sides by 81/4)
7/2 feet = h
The height will be 7/2
The sum of a number r and 10 is −2.
A music store bought a CD set at a cost of $20. When the store sold the CD set, the percent markup was %20. Find the selling price.
Answer:
$24
Step-by-step explanation:
20 * (1 + 0.2) = 24
Answer:
22
Step-by-step explanation:
20+ 20% =22
20% is 0.2 so your answer is 22 dollars
can someone help me with this question
9514 1404 393
Answer:
28 square units
Step-by-step explanation:
The figure can be decomposed several ways. Maybe easiest to see is as a 8×4 rectangle with a 2×4 right triangle cut from the corner.
The area of the rectangle is ...
A = LW = (8)(4) = 32
The area of the missing triangle is ...
A = 1/2bh = 1/2(2)(4) = 4
Then the area of the shaded figure is ...
32 - 4 = 28 . . . square units
_____
Alternate solution
If you divide the figure with a horizontal line across the middle, it becomes a 4×4 square and a trapezoid with bases 2 and 4 and height 4. The shaded area is the sum of these areas.
The area of a trapezoid is ...
A = 1/2(b1 +b2)h
A = (1/2)(2 +4)(4) = 12
The area of the square is ...
A = s² = 4² = 16
Then the total area is ...
12 +16 = 28 . . . square units
pls help. quickly please
Answer:
10 months.
Step-by-step explanation:
1200 + 25x = 1450; x = 10
Which two parallelograms have the same area?
Answer:
Idc
Step-by-step explanation:
I don’t really wanna help, so thanks for the points! Don’t scroll down! I’m warning you!!!
Figure 1 and Figure 4 have the same areas because the area of a parallelogram is just length times width.
Figure 1: 15×4=60 cm
Figure 2: 18×3=54 cm
Figure 3: 11×6=66 cm
Figure 4: 12×5=60 cm
As you can see, figure 1 and figure 4 have the same areas. So, C is the correct answer.
I need help ASAP need done before 3:30 pm
Answer:
5/8
Step-by-step explanation:
1/4 is equal to 2/8.2/8 +3/8 is 5/8 add them together you get 8/8.
***WILL MARK BRAINLIEST*** Write in Scientific Notation! #2
Help Asap Pls Hurry I Will Give Brainliest!
70 POINTS SHOW HOW U DID IT FOR BRAINLIEST
Answer:
Step-by-step explanation:
The anwer wolud be [D] because The question say that cube can be greater then 1500 and If you do multiplication 13x13x13=2197 show that It greater then 1500.
I really need this no links or report but mark brainliest i do answer correctly
Answer:
A. n= 11/2, its a fraction of 11 over 2
B. n=11
Step-by-step explanation:
it's really hard to explain, but it is a series of steps needed to make the denominator equal to eachother, canceling them out and solving for n.
REWARDING BRAINLIEST IF YOU DONT GET IT LMK IF YOU WANT ME TO MAKE A POST (you have to be early) OR TRY AND LOOK FOR A QUESTION NO ONE ANSWERED
Answer:
-5 down 6 across
Step-by-step explanation:
Answer:
Step-by-step explanation:
There is (-2,3), (6,3), and (-2,-3)
The first number for each one is the x position, the horizontal line,-2, 6, and -2
The second number is the y position, vertical line, 3, 3, and -3
The last point you need to plot on the graph is (6,-3), 6 is the x position, and -3 is the y position
-2/9x+(-7/9y)+(-7/10x+(-2/3)
Step-by-step explanation:
=-32-9 08 3X-97y
9- 2⋅ x+9- 7⋅ y+(1 0- 7⋅ x+3- 2)
order the quadratic equations from the widest to narrowest graph.
f(x)= -2x^2 + 4 , f(x)=x^2 - 2x +4 , f(x) = - 2/3x^2
Answer:
f(x)=2x53it[4p[
Step-by-step explanation:
Answer:
f(x)=2x53it[4p[
Step-by-step explanation:
Maggie is buying a jacket. The expression shown represents the sales tax on the jacket price, j.
0.08j
Write an expression in terms of j to represent the total amount that Maggie spends on the jacket, including tax.
Answer: 1.08j
Step-by-step explanation: if we add 8% of something to itself, we now have 108%, right
1.08j
I’m not 100% sure tho
The expression represents the total amount that Maggie spends on the jacket, including tax is 1.08j.
What is Percentage?A percentage is a way to describe a part of a whole. such as the fraction 1/4 can be described as 0.25 which is equal to 25%.
To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.
As it is given that the cost of the jacket is j, while the tax on the jacket is 0.08j. therefore, the total cost of the jacket can be written as the sum of the cost of the jacket and the tax on the jacket.
Thus, the total cost of the jacket = Cost of jacket + Tax on the jacket
= j + 0.08j
= 1.08j
Hence, the expression represents the total amount that Maggie spends on the jacket, including tax is 1.08j.
Learn more about Percentage:
https://brainly.com/question/6972121
Please answer this. Thank you!
Answer:
8: 73.2 cm
10: 738 mm
Step-by-step explanation:
8: A= 12.2 (4.5 + 7.5) / 2 --> 146.2 / 2 = 73.2 cm
10: A= 36 (22 + 19) / 2 --> 1,476 / 2 = 738 mm
Answer:
8: 73.2
10: 738
Step-by-step explanation:
Area of a trapezoid = [tex]A=\frac{a+b}{2} h[/tex]
where a and b = base lengths and h = height
For #8
These are the given dimensions
Base 1 = 4.5
Base 2 = 7.5
Height = 12.2
All we have to do is plug in the values into the formula
So....
[tex]A=\frac{4.5+7.5}{2} 12.2\\4.5+7.5=12\\\frac{12}{2} =6\\6*12.2=73.2[/tex]
Hence the answer is 73.2cm²
For #10
Once again all we have to do is plug in the values into the formula
[tex]A=\frac{22+19}{2} 36\\22+19=41\\\frac{41}{2} =20.5\\20.5*36=738[/tex]
Hence the answer is 738
Line segments AB and CD intersect at point E. Ray EF extends from point E.
Find the value of x. Then find the measures of angles CEF and BEF
Answer:
Their is a answer to your question I’ll put a link
Step-by-step explanation:
Use the link and multiple
A race car driver under the caution flag at 10 feet per second begins to accelerate at a constant rate after the warning flag. The distance traveled since the warning flag in feet is characterized by 30t^2+10t, where t is the time in seconds after the car starts accelerating again. How long does it take the car to travel 40 feet after it begins accelerating?
Answer:
it would take 1/3 or 0.333 seconds
Plz help me thank you
Answer:
answer is 1/100, 1/100, and 100
Answer:
0.5 is 1/100 times 50. 0.005 is 1/100 times 0.5. 50 is 100 times 0.5
Step-by-step explanation:
HOPE THIS HELPS YOU!!!!!! :) :) :) :) :)
SORRY IF IT IS WRONG. :) :) :) :) :)
NEED HELP ASAP!!!!!!!
Answer:
1. Four thousand five hundred ten
2. 51.65 rounded to the nearest whole number is 52.
3. 2622 divided by 3 = 874
4. [tex]6940 / 10^{2}[/tex] = 69.4
5. 3/4 x 5 = 3.75 or [tex]3\frac{3}{4}[/tex]
6. (2 x 7) - (2 x 5) = 4
7. The area is [tex]\frac{6}{7}[/tex]
8. 70 - (20-13) would probably work
Please give my brainliest if I helped!
Name this Solid
pentagonal prism
pentagonal pyramid
hexagonal prism
hexagonal pyramid
Answer:
hexagonal pyramid
Step-by-step explanation:
i think its this but otherwise pay attention in class
Find the median of the following numbers:
first set: 33, 36, 38, 29, 40, 44
and
second set: 13, 26, 19, 22, 25
Thank you!!
What is the probability of pulling a heart
52 cards and 13 hearts
and rolling an even number on a dice
Answer: The probability of drawing a heart out of the deck is 13/52, or 1/4. The probability of drawing an even number as card #2 (c∈{2,4,6,8,10}) for any suit is 20/51, except when the first card drawn is an even heart, then the probability of the second draw is 19/51.
Step-by-step explanation: