Answer:
1:25000
Step-by-step explanation:
2km =2000m =200000cm
200000/8=25000
Problem Find the midpoint between the following points using the Midpoint Formula 11113 91492). 2 Solution 1. Given: (-10, 2) and (3,5), the midpoint is ( Berg 2. Given: (3,6) and (7,6) the midpoint is ( BRARIES ) B. RE
Answer:
Step-by-step explanation:
1) (-10,2) ; (3,5)
[tex]Midpoint= (\frac{x_{1}+x_{2}}{2}, \frac{y_{1}+y_{2}}{2})\\\\=(\frac{-10 +3 }{2}, \frac{2+5}{2})\\\\=(\frac{-7}{2},\frac{7}{2})\\\\=(-3.5, 3.5)[/tex]
2) (3,6) ; (7,6)
[tex]Midpoint= (\frac{x_{1}+x_{2}}{2}, \frac{y_{1}+y_{2}}{2})\\\\=(\frac{3+7 }{2}, \frac{6+6}{2})\\\\=(\frac{10}{2},\frac{12}{2})\\\\=(5, 6)[/tex]
A company has offices in two different countries. The 125 employees at location A have a mean commute time of 40 minutes and a standard deviation of 15 minutes. The 250 employees at location B have a mean and standard deviation of 35 and 10 minutes, respectively.
Every month, the company takes separate random samples of 20 employees from each location for a survey. Each time, they look at the difference in the mean commute time sampled from each location
Consider the formula: ...
Why is it not appropriate to use this formula for the standard deviation of ...
Choose
A. The samples are not independent of each other.
B. We cannot assume independence for the employees sampled from location A.
C. We cannot assume independence for the employees sampled from location B.
Answer:
B
Step-by-step explanation:
We cannot assume independence for the employees sampled from location A.
It is not appropriate to use this formula for the standard deviation of
A. The samples are not independent of each other.
What is the difference between the sample and the population?The entire group about whom you want to make conclusions is referred to as a population.
The particular group from which you will gather data is known as a sample. The sample size is always smaller than the population as a whole.
We cannot rely on the workers' sampled employees' independence.
Assuming independence based on the 10% condition requires at least 200 employees in the population with a sample size of 20, however, location A only has 125 employees.
learn more about sample types in statistics here :
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ill give brainliest if it's right
Find the common difference of the arithmetic sequence -11, -16, -21,...−11,−16,−21,...
Answer:
-5 is the common difference.
Step-by-step explanation:
Answer:
...... ignor this
Step-by-step explanation:
.. sjodnaknd sorry
which function can be used to find y
Answer:
H
Step-by-step explanation:
-4000 is the slope
pick a point
y = -4000x + 20000
Please help!! Find the radius r.
¿Cuál es el valor absoluto de 9?
Analyze this equation.
8x−5=−1
What is the value of x ?
A. -0.75
B. -0.5
C. 0.5
D. 0.75
Answer:
C) 0.5
Step-by-step explanation:
8x-5=-1
8x=-1+5
8x=4
x=4/8
simplify
x=1/2
what is the slope of the equation y=2/3x-4
Answer:
2/3
Step-by-step explanation:
y=mx+b
y=2/3x-4
m=slope
b=y intercept
Question 1 (1 point)
What value of n makes the equation
0.2(n + 4) = 4.7n - 2.8 true?
A n = 0.8
B n = 1.25
Cn=-0.48
Dn=0.96
А
B
C
D
Answer:
a n=0.8
Step-by-step explanation:
A gorilla population is decreasing at a rate of 8% every year. What is the decay factor for this situation?
Answer:
0.92
Step-by-step explanation:
Henry flies from Washington, D.C., to Boston, MA. The first flight from Washington, D.C., to New York City is 1 h 12 min. The layover in New York City lasts 2 h 41 min.The flight from New York City to Boston lasts 1 h 10 min. How long is it from the time the first flight takes off to the time Henry touches down in Boston?
Answer: It is 5.05 hours or 5 hours 3 minutes from the time the first flight takes off to the time Henry touches down in Boston
Step-by-step explanation:
1 hour = 60 min
Given :Time for flight from Washington D.C. to New York City = 1 h 12 min = 72 min
Lay over in New York = 2 h 41 min = 161 min
Time for flight from New York City to Boston = 1 h 10 min = 70 min
Thus total time for Henry to touch down Boston = Time for flight from Washington D.C. to New York City + Lay over in New York + Time for flight from New York City to Boston = 72 min + 161 min + 70 min = 303 min = 5.05 hour
5.05 hours or 5 hours 3 min from the time the first flight takes off to the time Henry touches down in Boston
If the sum of 37 and 12 x is 286, what is the value of x?
Answer:
x = 20.75
Step-by-step explanation:
37 + 12x = 286 <-- Subtract 37
12x = 249 <-- Divide by 12
x = 20.75
if m=2 , find the value of 5-m
Answer:
5 - 2 = 3
Step-by-step explanation:
Replace m with 2 since m=2
Answer:
3
Step-by-step explanation:
If m=2, then 5 - m(2) is 3, because 5 - 2 is 3.
A rectangle is 60 cm long and 20 cm wide. Find, to the nearest tenth of a degree, the acute angle formed at the intersection of the diagonals.
Answer:
36.9°
Step-by-step explanation:
As shown in the diagram attached,
θ is the acute angle formed at the intersection of the diagonals of the rectangle.
From the diagram,
tan(θ/2) = 10/30
tan(θ/2) = 1/3
θ/2 = tan⁻¹(1/3)
θ/2 = 18.43
Therefore,
θ = 18.43×2
θ = 36.87
θ = 36.9°
Hence the acute angle formed is 36.9°
Evaluate the equation: 1/2*4√2*6√2
72 in.= ______ yd.
yd.=yards
in.=inches
HOW MANY YARDS ARE IN 72 INCHES? HOW DO I SHOW MY WORK FOR THAT???!!!!!
correct=brainliest
Answer:
72 inches equals 2 yards to get the answer you divide 72 by 36 which equals 2 .
Step-by-step explanation:
How can this expression be written another way?
30x + 100
Factor using the distributive property and the greatest common factor to write an equivalent expression.
options:
10 (3x + 10)
30 (x + 100)
100 (30x)
100x + 30
Answer:
option 1:
Step-by-step explanation:
10 (3x + 10)
Find the solution of the system of equations shown below. Show the work that leads to your answer. y = -2x x + y = 3
Becky borrowed $580.00 from the bank. The loan had a 13.5% simple annual interest rate, and she paid off the bill over 1.5 years. What was the total amount, including interest, Becky paid for the loan?
Answer:
697.45
Step-by-step explanation:
interest for the first year = 13.5 % of 580 = 78.3
for 0.5 year, it will be 78.3 /2 =39.15
1year + 0.5 year = 78.3 + 39.15= 117.45
add that to borrowed amount to get total amount paid
117.45+ 580= 697.45
please help marking u Brainiest if answered
11. Jackie ate of a bag of popcorn. She
shared the rest with Enrique. List three
ways they could have shared the
remaining popcorn
Find the missing angles in the diagram below (pls help no links)
Step-by-step explanation:
here you have the answers
?????????????????????
Answer:
Y= 10
angle D= 76
angle C=40
angle E=64
Step-by-step explanation:
x = (blank) degrees and adding letters so i can ask the question
Answer:
x = 47°
Step-by-step explanation:
Since CPD is a straight line, then
133 and x are adjacent angles and supplementary, sum to 180° , then
x + 133° = 180° ( subtract 133° from both sides )
x = 47°
Help, and can you show your work?
Step-by-step explanation:
answer A is correct
................
Answer:
c
Step-by-step explanation:
[tex]sin = \frac{opposite}{hypotenuse}[/tex]
it wants us to find sin a
the opposite of a is 24 and the hypotenuse is 26
so sin A = 24/26
[tex]cos = \frac{adjacent}{hypotenuse}[/tex]
it wants us to find cos a
the adjacent of a is 10 and the hypotenuse is 26
so cos A = 10/26
have a great day :D
There are about half a million heart attacks deaths in the United States of America each year acording to womensheart.Org about how many heart attack deaths is there each hour ]
Answer:
57 deaths per hour
Step-by-step explanation:
In one year, we have 365 days.
Now, there are 24 hours in a day.
Thus,
Number of hours in one year = 365 × 24 = 8760 hours
Now, since there are half a million heart attacks deaths occurring in the United States of America each year, it means that;
There are 500000 deaths every 8760 hours.
Therefore, death rate per hour = 500000/8760 ≈ 57 deaths per hour
what is the solution to the system? with a graph
y=-x+2
y=3x-1
Answer:
x = 3/4
y = 5/4
Step-by-step explanation:
Step:
Substitute−x+2 for y in y=3x−1:
y=3x−1
−x+2=3x−1
−x+2+−3x=3x−1+−3x(Add -3x to both sides)
−4x+2=−1
−4x+2+−2=−1+−2 (Add -2 to both sides)
-4x = -3
x=3/4
Step: Substitute x into the original equation
y=-3/4 + 2
y=5/4
Hope this helps!!
Could somebody please help me on this question!
Answer:
Step-by-step explanation:
nickel, n=0.05
dime, d=0.10
0.90=0.05n+0.10d
however, n+d=15
Can you help me? (BRAINLIEST IF CORREECT! and please dont guess this is important :D)
The Invasion of the Lionfish
What was once just an attractive aquarium fish has recently become one of the biggest menaces in the Atlantic. The lionfish was accidentally introduced into the Atlantic Ocean in the 1990s. Because it has no natural predators, it has adapted quickly to its new home. The lionfish now threatens to destroy native fish populations in the Atlantic, Caribbean, and Gulf of Mexico.
The lionfish spreads quite rapidly. Lionfish spread faster than any other invading species. Experts have called the invasion in the Atlantic the worst marine invasion of all time. The lionfish's success comes from an ability to reproduce all year round. In addition, they are greedy eaters with a fondness for small fish and crustaceans. They will eat anything smaller than they are. Lionfish love the warm waters of the Gulf of Mexico. Since their first sighting, they have rapidly multiplied. In some locations, scientists estimate that lionfish populations exploded by 700 percent between 2004 and 2008 alone.
To combat the invasion, wildlife agencies have sponsored lionfish derbies. In these derbies, local scuba divers are invited to harvest lionfish. In addition, many states offer recipes for preparing and eating lionfish to encourage harvesting. Lionfish have to be handled carefully because of their venomous spines, but they are apparently delicious. Increasing the harvest of lionfish will help. However, scientists estimate that more than a quarter of the population would have to be taken every month to stop the growing population.
The lionfish has targeted our most fragile and important ecosystems. Scientists are working tirelessly to learn as much as they can about this predator. We may never be able to completely remove the threat, but many fishermen and seafood fans are hoping we can figure out how to control it.
Work Cited
Wilcox, Christie. "The Worst Marine Invasion Ever." Slate. July 1, 2013.
http://goo.gl/Vlxpe
Read this line from the text:
In addition, they are greedy eaters with a fondness for small fish and crustaceans.
What does greedy mean in this sentence?
A.They take more than they need.
B.They have little to fear from others.
C.They cannot be controlled.
D.They have a weight problem.
Help Me please i need some help :)