Answer:
4) Unbiased; 5) Biased
Step-by-step explanation:
4) states that the audience of the poll was "random" people meaning it's a good foundation of data as they weren't chosen for the employee noticing their specific affiliation with being overjoyed with the product (as the question doesn't say) or for not liking (have complaints about it) the product.
5) The audience of the poll is fans of a sports team--definitely biased because they'll say they love the 49ers being a fan for them. Leads to skewed results not representing a portion of a population accurately.
These are the last two questions on my math homework, please help!
Answer:
A rectangular Prism
52 square units
Step-by-step explanation:
3*4= 12*2= 24
2*4= 8*2= 16
2*3=6*2= 12
24+12+16= 52
plzzz help its really easy , im just really du mb
Answer:
36.8/2.8 = 16
Expression 1 = 368/28
Expression 2 = 3.68/.28
Step-by-step explanation:
If you move the decimal the same on both numbers of a division problem the answer stays the same.
Answer:
1. 32÷2, 64÷4
2. 16
Step-by-step explanation:
Expression 1:
32÷2=16, and 64÷4=16.
Expression 2:
Change the divisor 2.3 to a whole number by moving the decimal point 1 places to the right. Then move the decimal point in the dividend the same, 1 places to the right.
We then have the equations:
368 ÷ 23 = 16
and therefore:
36.8 ÷ 2.3 = 16
Both calculated to 0 decimal places.
Find the mean absolute deviation for the data in the table. Round to the nearest tenth if necessary.
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
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
A store that buys and sells used video games buys a game at a cost of $19 and sells it at a selling price of $23. Find the markup. Then find the percent markup.
Answer: $62.25
Step-by-step explanation:
The mark-up is $477.25 - 415 = $62.25
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 50% decrease followed by a 75% increase
Same as the original, less than, or greater than the original?
An equation is shown below:
6(2x - 11) + 15 = 3x + 12
Part A: Write the steps you will use to solve the equation, and explain each step. (6 points)
Part B: What value of x makes the equation true? (4 points)
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)}
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:
Is the following number rational or irrational?
-2π
Irrational (I think)
Answer:
irrational
Step-by-step explanation:
-2π is an irrational number because π can't be written down as a non-infinite decimal, you need an approximate value.
hope this helps!
Please answer. Thanks.
Answer:
Step-by-step explanation:
A complex shape with measurements 11 inches, 6 inches, 6 inches, 11 inches. What is the perimeter of the shape? 44 inches 66 inches 121 inches 132 inches
Answer:
A. 44 inches
Step-by-step explanation:
1] Add the numbers given 6 + 6 + 11 + 11 = 34 (because you are trying to find the perimeter)
2] Subtract 6 from 11, 11 - 6 = 5
3] do the same to the top 11 - 6 = 5
4] then add the new numbers together along with the given ones. 6 + 6 + 11 + 11 + 5 + 5 = 44
Answer: A
Step-by-step explanation:
A $10 decrease followed by a $15 increase
Same as the original, less than, or greater than the original?
PLS HELP GIVING BRAINLIEST NO LINKS
Answer:
m = 4.7
Step-by-step explanation:
To isolate the variable m, we can add 2.2 to both sides:
m - 2.2 = 2.5
+ 2.2 +2.2
m = 4.7
[tex]\huge\pink{Answer}[/tex]
4.7 is the correct answer
m -2.2= 2.5
m = 2.5+2.2
m = 4.7
Help me please show your work I’ll give brainlest.
Will give brainliest for both answers
1) 4[tex]\\c^{2}[/tex][tex]s^{12}[/tex]
2)729[tex]r^{18}[/tex]
pls help. quickly please
Answer:
10 months.
Step-by-step explanation:
1200 + 25x = 1450; x = 10
Melissa has 10 1/2 pounds of candy that she wants to share. If she divides the candy between herself and six friends, how many pounds of candy will each person get?
A. 1 1/2 pounds
b.3 pounds
c 73 1/2 pounds.
d 1 3/4 pounds
PLS HELP!!
Answer:
I think the answer is A
Step-by-step explanation:
The sum of a number r and 10 is −2.
could someone please help me out with this question
Answer:
55%
Step-by-step explanation:
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!
Can somebody give me an answer? asap ty
Answer:
for 12 you can make 48 cups for 30 you can make 120 cups \
for the second question you need 10 ounces for 40 and
Step-by-step explanation:
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
Which correctly compares the medians and the measures of variability of the data in the box plots? Select three
choices
The difference in the medians is about 1.5 hours,
The range for both middle school students and elementary school students is 6 hours,
The interquartile range for middle school students is 5, and the interquartile range for elementary school students
3
Both sets of data have the same maximum and minimum values
The medians for the two sets of data are the same,
Answer:
Yes it is right
Step-by-step explanation:
Answer:
A, C, and D
Step-by-step explanation:
It rained 4.2 inches in 12 hours. At this rate,
how much will it rain in 27 hours? Please help!!!!!!
NEED HELP ASAP Brandon made a two-digit code. The first digit is odd. How many possible codes can he choose from?
10*10 =100
100/2 =50
50 possible codes
A circle has a radius of 3 feet. Use 3.14 for π, and drag and drop the correct answers for each problem below.
A. What is the area of the circle?
B. What is the diameter of the circle?
C. What is the circumference of the circle?
Answer:
A. 28.27
B. 6ft
C. 18.85
Step-by-step explanation:
:)
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