Reason:
Dale is biased toward the two fastest people in the group, but is leaving out the rest of the swimmers who may not be so fast. The people left out may be very distant from the top two swimmers. Therefore, Dale has not picked a representative sample.
As an example with numbers, let's say we had these average speeds in mph: {1, 2, 3, 4, 20, 30}. Of course these are just hypothetical examples and not based on actual realistic speeds; however, the example should still suffice.
That data set shows the average is closer to 2 and 3 than it is to 20 and 30. Dale polling the fastest people greatly skews the mean larger than it should be.
To get a better more representative sample, Dale should randomly pick 2 people regardless if they are the top two swimmers or not. He can pick the names out of a hat, or use a computer program to generate random numbers.
pls help me this is so frustrating
Answer:
x = 60°
Step-by-step explanation:
m∠EGD = m∠BGF = x°
The following m∠EGD, m∠DGC, m∠EGA lies on a straight line.
A straight line has total 180° interior angle.solve:
m∠EGD + m∠DGC + m∠EGA = 180°x + 90° + 30° = 180°x + 120° = 180°x = 180° - 120°x = 60°what is the mean absolute deviation (MAD) of the data set? 78, 82, 84,88,92
Answer:
4.08
Step-by-step explanation:
What are the perimeter and area of a rectangle with a length of 20 in. and a width of 15 in.?
*
P = 35 inches, A = 300 square inches
P = 70 inches, A = 300 square inches
P = 300 inches, A = 70 square inches
P = 35 inches, A = 200 square inches
P = 70 inches, A = 300 square inches
hope it helps...!!!
I need Help again pls :)
Answer:
76 novels
Step-by-step explanation:
n times m
N=4
M=19
4 times 19= 76
I will give brainliest !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Coordinates of Point A = (4, 6)
Coordinates of Point B = (2, 9)
Coordinates of Point C = (0, 4)
The coordinates of Point D are (7, 3). Allie accidentally swapped the x and y coordinates around.
Step-by-step explanation:
A pair of coordinates look like this: (x, y).
The x values are on the bottom axis.
The y values are on the left axis.
The y-axis points up and down.
The x-axis points left and right.
IF YOU ANSWER FIRST ILL GIVE BRAINLYEST
The table below shows data for the relationship between x and f(x) = 3(0.5)^at.
x f(x)
–2 192
–1 24
0 3
1 0.375
What is the value of a that results in the data in the table?
A. -3
B. -1/3
C. 1/3
D. 3
Answer:
I might be wrong but i looked it over, and I think the answer can be B
Step-by-step explanation:
I dont know for sure but i think it might be.
Mr. Monroe records how long he practices his guitar every day for two weeks. He organizes the data using a frequency table. Which statement describes the data distribution?
Answer:
a
Step-by-step explanation:
6[5x(41-36)-8+14)] =?
help pls
Calculate the average (arithmetic mean) from the given number of data values and the sum of the data values. (rounded to the nearest tenth) A) 0.3 B) 31.0 C) 31.8 D) 31.9
Answer:
D 31.9
Step-by-step explanation:
The high score for a video game is 36,480. Your current score is 34,280. Each dragonfly you catch is worth 1 point. You also get a 1000-point bonus for reaching 35,000 points. Select an inequality that represents the number d of dragonflies you must catch to earn a new high score. Then solve the inequality.
Which one is right?
Answer: Correct me if I am wrong, but since you chose the middle answer I will be awnsering that one
you will need to catch 1,000 more dragonfly so it will look like this
34,280 + 1000d + 1000 > 36,480
Please help will give brainiest!!! The pathway of a quarter being thrown off a bridge can be modeled by the equation h=-16t^2+72t+120. At what time does the quarter reach a height of 50 feet?
Answer:
3.1 secs
Step-by-step explanat y+ -16x2+48X+5
find the P(D') and P(T')
Pls help! Show all work. Will reward the brainiest for da best answer.
The tires on a compact car are 18 inches in diameter.
a. How far does the car travel after the tires turn once? Use 3.14 as pi
b. How far does the car travel after 12 rotations of the tires? Use 3.14 as pi.
Answer:
1. 56.52 inches
2. 141,300 inches
Step-by-step explanation:
One turn of the tire is the circumference. Therefore, we have to find the circumference first. C = πd = 18π = 18 × 3.14 = 56.52 in
2500 rotations would be 2500 ⋅ 56.52 in = 141,300 in
I hope this helps and please mark me as brainliest!
answer for brainliest
help i’ll give you brainlist or whatever it’s called
A triangle has an area of 54 centimeters squared. The height of the triangle is 12 centimeters. What is the base of the triangle?
Answer ASAP! and whoever gets it right can have brainliest
Answer: 9
Step-by-step explanation:
the formula for the area of a triangle is a=bh/2, since the area is 54 we would need to multiply it by 2 which would be 108 to reverse the division. then we would divide it by 12 which would be 9 to reverse the multiplication.
Answer:
[tex]beinggreat78~here.[/tex]
The base is 9
Multiply 9 by 12, which is 108, and divide by 12, which is a way of giving you 9.
Choose the best description of ABC and RST. WILL CHOOSE BRAINLIEST
Answer:
D
Step-by-step explanation:
These three theorems, known as Angle - Angle (AA), Side - Angle - Side (SAS), and Side - Side - Side (SSS), are methods for determining similarity in triangles.
As A has angles 90,25 and 65 and B has angles 90,45 and 45, there are no two pairs of angles that are similar. Also as the angles are not equal the sides can't also be equal. So none of the above three methods are applicable here.
Pls, help!!! Will mark brainiest :)
A square pyramid 9 feet tall has a volume of 507 cubic feet. How long is each side of the base of the pyramid?
(SHOW ALL WORK!!!)
If w = 7 feet, x = 6 feet, y = 13 feet, and z = 8 feet, what is the area of the object?
Answer:
The Area is: 84ft
Step-by-step explanation:
multiply "Y" and "X" and you get 78ft.
"W" + "?"= "Y" If "W"=7, what is 13 ("Y") - 7? 13 -7=6. so "?"=6.
"Z"-"X"="?" "Z"=8 and "X"=6. so 8-6=2
2x6=12 *but remember that to find the area of a triangle it is half of a square of rectangle so you have to divide it in half. 12/2=6.
78+6=84.
Hope this helps! :)
In the metric system, small quantities of liquid are measured in milliliters (mL) or cubic centimeters (cm3 or cc). A liter is 1000 mL or 1000 cc. The capacity of the cup in problem 18 is about what fraction of a liter?
For what value of k will the following linear system have infinitely many solutions?
2a+b=-6, 6a+kb=-18
Answer:
K = 3
Explanation given below in the image,
I hope my answer helps you.
A square has an area of 169 square feet. Select ALL the values that could represent the side length of the square in feet.
√169
169/4
169/2
13
√13
Answer:
√169 & 13
Step-by-step explanation:
the area of a square is = to one side squared
Because of this, the side should equal the square root of the area.
13 is the square root of 169, and the square root of the area, 169, are both options, and fulfill the area formula for squares
There is a pair of parallel sides in the following shape.
What is the area of the shape?
Answer:
15
Step-by-step explanation:
3x3 plus 7x3 = 30 divided by 2
The area of the quadrilateral is equal to 15 square units.
What is an area?The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the quadrilateral in a two-dimensional plane is called the area of the quadrilateral. A quadrilateral is a four-sided polygon with four edges and four corners in geometry.
Given that the quadrilateral has a height of 3 units, the base is 3 units and the upper sides are 7 units.
The area of the quadrilateral is calculated by the formula,
Area = (1/2) x h x (a + b)
Substitute the values in the formula and calculate the area,
Area = (1/2) x 3 x (7 + 3)
Area = (10 / 2) x 3
Area = 5 x 3
Area = 15 square units
To know more about an area follow
https://brainly.com/question/27991573
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Help With my math home work
Answer:
1/2 and -1/2
Step-by-step explanation:
The square root of a fraction is equal to the square root of the numerator divided by the square root of the denominator. In this case, it is √1 / √4. The square root of 1 is still 1, so 1 is the numerator. The square root of 4 is 2, so 2 is the denominator. The fraction is 1 / 2. However, if you square -1/2, you also get 1/4, just like when you square 1/2. Therefore, the second choice is the right option because it has the correct, and number of, answers.
I hope this helps and please mark me as brainliest!
A skateboard was originally priced at $53.00. It is on sale for 15% off. What is the sale price of the skateboard?
Answer:
$45.05
Step-by-step explanation:
To find 10% divide the original number by 10. This is $5.30
To find 5% divide 10% by 2. This is $2.65
Add the two together to get 15%. This is $7.95
Take away the value of 15% from the original number.
$53.00 - $7.95 = $45.05
The border of a Susan B. Anthony dollar is in the shape of a regular polygon.
Just answer b:
b. What is the measure of each interior angle of the border? Round your answer to the nearest degree.
The measure of each interior angle is ° .
This one is a little tricky, if you can help please do
Answer:
Answer:
3.5 fluid ounces
Step-by-step explanation:
In this question, we are asked to calculate the capacity in fluid ounce of a cone-shaped cup.
To solve this, we need to calculate the volume of the cup.
Mathematically, the volume of a cone =
1/3 * π * r^2 * h
Where r = d/2 = 2.7/2 = 1.35 inches
h = 3.3 inches
By substituting this, we have
V = 1/3 * 3.14 * 1.35^2 * 3.3 = 6.3 cubic inch
Now we proceed to calculate the capacity
From the question, we are told that ;
1 fluid ounce = 1.8 cubic inch
This means
x fluid ounce = 6.3 cubic inch
x = 6.3/1.8
x = 3.5 fluid ounces
Step-by-step explanation:
Please mark as brainliest
Which of the following lists is in order from smallest to largest?
2/11, 1/5, 17%, 0.175
2/11, 17%, 0.175, 1/5
1/5, 2/11, 0.175, 17%
17%, 0.175, 2/11, 1/5
Answer:
I believe the answer is d. 17%, 0.175, 2/11, 1/5
Step-by-step explanation:
if you convet them all to decimels it comes out to:
17%= .17
.175= .175
2/11= .18
1/5= .2
Answer:
c
Step-by-step explanation:
if you change them to decimals yo get the answer
get more math help pls
Answer: See below
Step-by-step explanation:
If the tempature is dropping 3 degrees every hour mulitply 3x5 and you will get 15. Therefore the answer is -15 degrees
Pls quickly, it’s due in 1 hour
Find the interquartile range of the data.
132.127.106.140.158.135,129,138