Answers
Answer:
10 is unbiased
11 is biased
Step-by-step explanation:
10 is unbiased
11 is biased
Have an amazing day!
PLEASE RATE!!
Answer:
10 - unbiased
11 - biased
Step-by-step explanation:
^^
Related Questions
can you help me on this please
Answers
w= 5 - l=12 - h= 14 * = multiply
2(5*12+ 14*12+14*5)
simplify = 2(60+168+70)
add what’s in the parentheses
2(298)
multiply 2 * 298= 596
The surface area equals 596
SA = 596
Anthony is practicing kicking field goals for his high school football team. He knows that the field goal is 10 feet off the ground.
Part A: If he stands 45 feet from the field goal, how far must he kick the ball in order to make the extra point?
Part B: Explain how you arrived at your conclusion.
Answers
Answer:
to reach he needs to kick along the hypotenuse, with the legs of 40 and 10
Use the Pythagorean theorem
Step-by-step explanation:
I'm sorry if it is wrong... This is how i understood the problem
There is a total of 27 quarters stacked in four piles. The first pile has 5 fewer than the second pile. The second pile has 4 more than the third pile. The fourth pile has three times as many as the second pile. How many quarters are in the fourth pile?
Answers
Answer: 18 quarters
Step-by-step explanation:
second pile = x
first pile = x - 5
third pile = x - 4
fourth pile = 3x
total amount of quaters = 27
x + x - 5 + x - 4 + 3x = 27
6x = 36 x = 6
fourth pile = 3(6) = 18
Solution:
Note that:
27 quarters = 4 piles = 1st pile + 2nd pile + 3rd pile + 4th pile1st pile = 2nd pile - 5 = 3rd pile - 12nd pile = 1st pile + 5 = 3rd pile + 43rd pile = 1st pile - 1 = 2nd pile - 44th pile = 3(2nd pile)This means that...
27 quarters = (2nd pile - 5) + (2nd pile) + (2nd pile - 4) + 3(2nd pile)First, let's find the number of quarters in 2nd pile.
Open the brackets.
27 quarters = (2nd pile - 5) + (2nd pile) + (2nd pile - 4) + 3(2nd pile)=> 27 quarters = 2nd pile - 5 + 2nd pile + 2nd pile - 4 + 3(2nd pile)Combine like terms.
=> 27 quarters = (-5 - 4) + 6(2nd pile)Simplify the RHS.
27 quarters = -9 + 6(2nd pile)Add 9 both sides.
27 + 9 = 6(2nd pile)=> 36 quarters = 6(2nd pile)Divide 6 both sides.
=> 6 quarters = 2nd pileNow, substitute the number of quarters in 2nd pile in it's equation.
4th pile = 3(2nd pile)=> 4th pile = 3(6)=> 4th pile = 18 quarters.Paul plots the following points on a coordinate grid. (-2,5), (3, 1), (0, 7) Which of the following points, if added to his graph, would result in it NOT representing a function?
Answers
Answer: D
Step-by-step explanation:
The input (x) can only have one output (y).
A meteorologist recorded the rainfall in Oakdale in two consecutive months. In the first month, there were 1 6/12 inches of rain. In the second month, there were 1 inch of rain. What was the total amount of rainfall during the two months?
Answers
Answer:
There were 2 1/2 inches of rain in 2 months.
Step-by-step explanation:
1. Reduce 1 6/12 to 1 1/2.
2. Add 1 1/2 and 1 (if it is easier for you to add decimals you can reduce the 1 1/2 to 1.5 by dividing 1 by 2. In that case you would get 2.5 as your final answer). The answer is 2 1/2.
mAngle mean in geometry ?
Answers
Answer:
In geometry, an angle can be defined as the figure formed by two rays meeting at a common end point. An angle is represented by the symbol ∠.
Step-by-step explanation:
Find the GCF (greatest common factor) of 12 and 27.
Answers
Answer:
the greatest common factor is 3
Answer:
3
Step-by-step explanation:
it’s because 3 can go into 12 and 27 and it’s the highest! Hope this help :)
Find the ratio of 3 days to 48 hours.
Answers
Answer:
As we have to change it in simplest form,
3 days : 48 hours. Firstly, we have to convert days into hours ... So, 3 days = 3 × 24. => 72 hours ..... And Therefore,
72 : 48. And the fraction formed will be as follows :- And when we cut off it by 24, the resulting fraction will be :- So, The ratio will be, 3:2 ...
In complete sentences, describe the characteristics of this scatterplot.
Answers
Answer:
this scatterplot is a positive linear scatterplot.
Please help me will give brainliest to the person with a good and right answer
Answers
Answer:
x= 1.37 or -1.62
Step-by-step explanation:
hope it helps
ok i genualy need yalls help please
Answers
Part A
Answers:To find the area of the unshaded region, subtract the area of the shaded region from the sum of the areas of the rectangle and semicircle
----------------
Explanation:
When it comes to area problems, think of a grid of squares. Let's say we had a 10 by 10 grid of tiny squares (10*10 = 100 total). Now let's say 8 of them are shaded in. There are 100 - 8 = 92 unshaded squares to represent the total area of the unshaded region.
That's effectively what's going on with this problem as well. Sure things get a bit tricky with that curved portion on top, but we can still get an approximation if we use smaller and smaller grid sizes. I recommend using graph paper or graphing software that provides a grid.
========================================================
Part B
Answer: 811----------------
Explanation:
For now, I'm going to ignore the shaded region. I'll come back to it later.
The rectangle is 15 ft by 50 ft. It has an area of length*width = 15*50 = 750 sq ft.
The semicircle up top has an area of [tex]0.5*\pi r^2 = 0.5*\pi*(7.5)^2 \approx 88.3573[/tex] sq ft approximately. The 7.5 is from dividing the diameter in half to get the radius. As the instructions stated, I used the calculator's version of pi.
The rectangle and semicircle have their areas add to
750+88.3573 = 838.3573
Now we can finally address the shaded region. It is a 3 ft by 9 ft rectangle because "the length is 3 times the width" and the width is 3 ft. This shaded rectangle has area 3*9 = 27 sq ft.
The unshaded region is:
unshaded = total - shaded = 838.3573 - 27 = 811.3573
This rounds to the final answer of 811
please help me im dying please im only on question 12
Answers
Answer:
169,611
Step-by-step explanation:
x = total number of registered doctors
28.3/100 = 0.283
0.283x = 48,000
/0.283 /0.283
x = 169611.307
x = 169,611 (to the nearest whole number)
Therefore, our final answer is 169,611.
Hope this helps!
Heat energy from the sun heats water on earth’s surface. The heated water evaporates and the water vapor rises into the air. As the water vapor rises, it cools and condenses around dust particles, and returns to earth’s surface as precipitation. This is a
A.
the water cycle
B.
the oxygen cycle
C.
the heat cycle
D.
the carbon cycle
Answers
Please help!
3x^2 + 1/2 x 7y (When y = 3)
Answers
3x^2 + 1/2 x 7(3)
3x^2 + 1/2 x 21
3 (x^2 + 1/2 x 21)
3 (x^2 + 7/2)
3 x 1/2 (2x^2 +7)
3/2 (2x^2 + 7)
Answer:
3x^2+21/2
Step-by-step explanation:
3x^2+1/2*7(3)
(a)=a so (3)=3
3x^2+1/2*7*3
1/2*7*3=21/2
3x^2+21/2
Hope this helps! Pls give brainliest!
a movie theater offers a reward program that charges a yearly membership fee and a discounted rate per movie ticket. The total cost for a reward program member to see 5 movies is $40.00 and a total costs for 12 movies is $75.00. Assume the jkrelationshup is l near write the equation of the function in the form y=mx+b when x represents the number of movies and y represents the total cost.
Answers
Answer:
— The total cost for a reward program member to see 5 movies is $40 and the total cost for 12 movies is $75. Assume the relationship
Step-by-step explanation:
The equation of the function is y = 5x+5, where x represents the number of movies and y represents the total cost.
What is an equation?An equation is a mathematical statement that shows that two mathematical expressions are equal.
Given that, The total cost for a reward program member to see 5 movies is $40.00 and a total costs for 12 movies is $75.00.
The coordinates of the equation can be (5, 40) and (12, 75)
The equation of a line passing from two points is given by,
y-y₁ = (y₂-y₁)/(x₂-x₁)(x-x₁)
y-40 = (75-40)/(12-5)(x-5)
y-40 = 35/7(x-5)
y = 5x-25+40
y = 5x+15
Hence, the required equation is y = 5x+15
For more references on equations, click;
https://brainly.com/question/29657988
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A bicycle has a listed price of $811.99 before tax. If the sales tax rate is 6.5% , find the total cost of the bicycle with sales tax included.
Round your answer to the nearest cent, as necessary.
Answers
Answer:
811.99x1.065=864.77
Step-by-step explanation:
Since it is a sales tax, and not something else, we would add a 1 on the front of it, to essentially just "add" back that 811.99, even though it is multiplication. 1.065 times 811.99 is the same as (811.99x.065)+811.99.
Find the volume of the triangular prism shown below:
Answers
Answer:
32 in²
Step-by-step explanation:
The area of a triangular prism is 1/2*length*width*height.
All the sides are 4.
So,
1/2*4*4*4 = 32 in²
think of a triangle as half of a square
find the perimeter of the square
Answers
Answer:
48
Step-by-step explanation:
12+12+12+12 to each side
You add each side, 12+12+12+12, which should get you 48:)
Hope this helps!
If the mountain is 1,200 feet tall, find the length of the ski lift
Answers
Step-by-step explanation;
By an online search, i found that the sky lift
rises at an angle of 20.75 degrees.
Then we can think on a triangle rectangle, such
that:
One cathetus is 1200ft, this is the opposite
cathetus to the angle of 20.75°
The length of the ski lift would be the
hypotenuse of this triangle rectangle.
Then we can use the relationship:
Sin(a) = opposite cathetus/hypoteuse.
such that:
a = 20.75°
opposite cathetus=1200ft
then:
sin(20.75°) = 1200ft/hypotenuse
hypotenuse =1200ft/sin(20.759) =3.387.05 ft
The length of the sky lift is 3.387.05 ft
helppppppppppp meeeeeeeeeee pleaseeeeeeeee
Answers
Answer:
23
Step-by-step explanation:
An event at a certain location is described below.
Tectonic plates move towards each other and force rocks upwards into a series of folds.
Which landform will be created at the location?
Mountain range
Ocean basin
Valley
Volcano
Answers
Answer:
Mountain range
Step-by-step explanation:
A mountain range will be created because it says that the tectonic plates "force rocks upwards into a series of folds". The series of folds are the mountain range.
Also: Please mark your questions under the correct category. This is obviously a science question, not a mathematics question.
Answer:
Mountain range
your welcome :)
To rent a certain meeting room, a college charges a reservation fee of $31 and an additional fee of $5.70 per hour. The history club wants to spend less than $82.30 on renting the meeting room.
What are the possible amounts of time for which they could rent the meeting room?
Use for the number of hours the meeting room is rented, and solve your inequality for .
Answers
Answer:
x [tex]\leq[/tex] 9
Step-by-step explanation:
31 + 5.70x [tex]\leq[/tex] 82.30
subtract 82.30 by 31
5.70x [tex]\leq[/tex] 51.3
divide both sides by 5.70
x [tex]\leq[/tex] 9
Darren and his friend save money for vacation Darren start with $120 in savings each week Darren add $40 to savings Darren’s friend Also begins with $120 in savings but saves at a faster rate than Darren create an equation that could represent the amount of money Y in dollars that Darren’s friend sees vacation after X weeks
Answers
Define the variables:
y= amt. of $ saved by Darren's friend
x= # of weeks
Darren adds $40 to his savings EVERY WEEK. He also started with $120, so the equation is:
y=40x+120
Simplify the exponential problem
7b^5/b^4
Answers
Solution:
If the numerator and the denominator have like bases in exponents, then the exponents subtract.
[tex]\frac{7b^5}{b^4} = 7b^5^{-4}[/tex] => [tex]7b[/tex]Thus, 7b is the simplified expression.
1 minus what equals 0.863
Answers
Answer:
0.137
Step-by-step explanation:
Answer:
0.137
Step-by-step explanation:
I hope this helps! :)
giving brainliest to first correct answer!!
Answers
Answer:
D
Step-by-step explanation:
Could you describe the expression 2(3+4) as a product of two factors? Explain. Can someone pls give me a simple explanation on if the answer is yes or no and why
Answers
Answer:
Distributive Property
Step-by-step explanation:
According to the rule of distributive property, 2(3+4) would be 14.
Find the area of the composite figure or the shaded region. Round to the hundredth place if necessary. Use 3.14 an estimate for Pi. Will mark the brainliest
Answers
2. 10*3.2= 32
3. 4*2.8=11.2
4. 12*3.1= 37.2
THE AREA OF THE FIGURE AFTER ALL THIS IS ADDED UP IS: 80.4 m^2
asap i need now late aspa
Answers
Answer:
D. (x, y) --> (2/5x, 2/5y)
Step-by-step explanation:
if you multiply each coordinate on the outer ellipse B by 2/5, you get the coordinates for the inner ellipse A.
For example, if you multiply each unit in coordinate (5,0) on ellipse B by 2/5 you would get:
5*2/5 = 2
0*2/5 = 0
= (2,0)
Hope this helped! :)
Answer:
D
Step-by-step explanation:
z > 34. Which of the following statements is the best way to describe the value of z?
Answers
Answer:
The value of z is more than 34.