Step-by-step explanation:
30 mph is the answer of your qu
Chicago, Illinois has an elevation of 600 feet. Seely, California is -200 feet. What does 0 represent in the context of this situation?
Answer:
Sea level
Step-by-step explanation:
In geography, 'Elevation' is measured in relation to sea level, so sea level would be zero.
Thus, Chicago is 600 feet above sea level and Seely, California is 200 feet below sea level.
If there were nothing but flat land all the way from Seely to the ocean, sea water would come in and cover Seely. Fortunately for the people in Seely. California's coastal mountain range is between the town and the ocean, so that does not happen.
Answer:
It represents the "SEA LEVEL"
if x degree + x + 10 degree + x + 15 degree + x + 20 degree + x + 25 degree + x + 30 degree
Answer:
x° + x° + 10° + x° + 15° + x° + 20° + x° + 25° + x° + 30°
= 6x° + (10 + 15 + 20 + 25 + 30)°
= 6x° + 100
0 = 6x + 100
6x = 100
X = 100/6
X = 16.66
A group of veterinary researchers plan a study to estimate the average number of enteroliths in horses suffering from them. Previously research has shown the variability in the number to be σ = 2. The researchers wish the margin of error to be no larger than 0.5 for a 99% confidence interval. To obtain such a margin of error the researchers need at least:
A. 53 observations.
B. 107 observations.
C. 106 observations.
D. 54 observations.
2.
A group of veterinary researchers plan a study to estimate the average number of enteroliths in horses suffering from them. The number of enteroliths is determined by surgery or ultrasound. This requires the participation of a radiologist and a surgeon in the study. The researchers decide that they should only enroll horses seen at the best veterinary hospital in the country to ensure correct counts. Such a hospital will typically see the most severe cases. The researchers will enroll the first 100 horses seen beginning on the day the study is funded. The resulting interval is likely biased because:
A. the first 100 horses seen is not an SRS of all horses with enteroliths and therefore never representative.
B. a sample of 100 horses is too small to obtain an unbiased estimate.
C. the best veterinary hospital is likely to see the most severe cases with larger number of enteroliths.
D. All of the above
3.
A group of veterinary researchers plan a study to estimate the average number of enteroliths in horses suffering from them. The number of enteroliths is determined by surgery or ultrasound. This requires the participation of a radiologist and a surgeon in the study. The researchers decide that they should only enroll horses seen at the best veterinary hospital in the country to ensure correct counts. Such a hospital will typically see the most severe cases. The researchers will enroll the first 20 horses seen beginning on the day the study is funded. The researchers will calculate a 95% confidence interval. The procedure is not valid because the:
A. sample size is too small for the central limit theorem to apply.
B. average number is not an integer and does not reflect any actual observation.
C. None of the above. The procedure is valid.
D. data are counts and, therefore, not Normally distributed.
4.
In a test of hypothesis for a mean, which statement is CORRECT?
A. The test requires that the sample mean is normally distributed; this requires that either the population distribution is Normal or the sample size exceeds 30.
B. As long as the population distribution consists only of positive values, sample size does not matter.
C. The population distribution can be any distribution because the sample mean is always Normally distributed.
D. The population must be normal because that is the only case when the sample mean is Normally distributed.
5.
A "false negative," in which no effect is detected when in reality one exists, is an example of:
A. a Type I error.
B. the power of the test.
C. a Type II error.
D. None of the above
Answer:
1.) 107 observations
2.) the best veterinary hospital is likely to see the most severe cases with larger number of enteroliths
3.) A. sample size is too small for the central limit theorem to apply.
4.) The test requires that the sample mean is normally distributed; this requires that either the population distribution is Normal or the sample size exceeds 30.
5.) a Type I error
Step-by-step explanation:
n = [(Zcritical * σ) ÷ E]²
n = sample size
Zcritical at 99% = 2.58
E = error margin = 0.5
Standard deviation, σ = 2
n = [(2.58 * 2) ÷ 0.5]²
n = [5.16 ÷ 0.5]²
n = (10.32)²
n = 106.5024
n = 107 observations
B.) The thought or decision that the best veterinary hospital is likely to see the most severe cases with larger number of enteroliths will introduce a bias in the study.
C.) For central limit theorem ; sample size must be considerably large ; at least sample size, n ≥ 30
D.) Distribution must be normal it approximately normal, obeying the central limit theorem ; sample size must be considerably large ; at least sample size, n ≥ 30
PLEASE HELP!!! I WILL GIVE BRAINLIEST
Answer:x=2y=3
Step-by-step explanation: I did this before
Which measurement is equivalent to 1 liter?
Answer:
4 Metric cups!
Step-by-step explanation:
Using a conversion calculator you find them equal to each other. Hope this is what you needed!
Answer:
1000 cubic centimeters
0.264172 US liquid gallon
Step-by-step explanation:
Plz help! Gonna need to turn it soon
Answer:
C - 13*
Step-by-step explanation:
Find the distance between (−9, 7) and (−6, 7).
Answer:
(6,7),(9,6)
Step-by-step explanation:
HOPE THIS HELPS!!!!
ISF YOU GET IT RIGHT I WILL NAME YOU BRAINLIST.
A sequence can be generated using a, = 60(1/2)"-1. What are the first four terms in the sequence? A 60, 120, 240, 480 B 60, 30, 15, 7.5 C С 60, 120, 180, 240 60, 90, 135, 202.5 ОА B. D
Answer:
C
Step-by-step explanation:
You just plug in the # in the sequence you wanna find,
n=1
60((1)/(2))^(1-1) = 60 (1st term)
--
n=2
60((1)/(2))^(2-1) = 30 (2nd term)
--
n=3
60((1)/(2))^(3-1) = 15 (3rd term)
--
n=4
60((1)/(2))^(4-1) = 7.5 (4th term)
Help me with this plzz pt.2
Answer:
3 feet by 8 feet= 24 square feet
9 feet by 10 feet= 90 square feet
5 feet by 7 feet= 35 square feet
13 feet by 2 feet= 26 square feet
8 feet by 8 feet= 64 square feet
Step-by-step explanation:
Answer:
Sheesh that sucks um go help urself
Step-by-step explanation:
The Washington Monument in Washington, D.C. is surrounded by a circle of 50 American flags that are each 100 feet from the base of the monument. The distance from the base of a flag pole to the top of the monument is 564 feet. What is the angle of elevation from the base of a flag pole to the top of the monument?
Answer:
Step-by-step explanation:
cosx=100/564
x=arccos(100/564)
x=79.79 degrees (to the nearest hundredth of a degree)
The angle of elevation from the base of a flag pole to the top of the monument is to be considered as the 79.79 degrees.
Calculation of the angle of elevation;Since there is 100 feet from the base of the monument.
And, The distance from the base of a flag pole to the top of the monument is 564 feet
Now the angle should be like
cosx = 100/564
x = arc cos(100/564)
x=79.79 degrees
hence, The angle of elevation from the base of a flag pole to the top of the monument is to be considered as the 79.79 degrees.
Learn more about an angle here: https://brainly.com/question/124950
RANGE IS ANOTHER NAME FOR:
A. Middle
B. Average
C. Most
D. The distance between the biggest and largest numbers in a data set
Answer:
D
Step-by-step explanation:
Range is the distance between the biggest and smallest numbers in a set
(-18)/(-3) calculate value expression
Answer:
6
Step-by-step explanation:
For f (x) = 2x+1 and g(x) = x2 - 7, find (fºg)(2).
Answer:
Step-by-step explanation:
Your first step will be to set up the problem:
f(x) - g(x)
Next you will substitute in your values:
(2x + 1) - (x2 - 7)
The easiest way to do the subtraction problems is to distribute your negative into your second set of parenthesis, so your expression would become:
2x + 1 - x2 + 7
Then combine your like terms:
2x - x2 + 8
Lastly put your expression in standard form (highest exponent to lowest)
-x2 + 2x + 8
Hope this helped!
Graph g(x) = -3(x + 2)2 + 2. Compare the graph to the graph of f(x) = x2. Give me five points that you use to graph g(x). Then describe the transformation from the graph of g to the graph of f.
4/4 pts
***
---the system of simoultanious equation
X+2y+z=6
2x+y+2z=6
X+y+z=5
Answer:
The system of equations has no solution.
Step-by-step explanation:
Let the following system of linear equations:
[tex]x +2\cdot y + z = 6[/tex] (1)
[tex]2\cdot x + y + 2\cdot z = 6[/tex] (2)
[tex]x + y + z = 5[/tex] (3)
Since the quantity of equations and variables are the same, there is only one solution to this system. First, we clear [tex]x[/tex] in (3):
[tex]x = 5 - y - z[/tex]
And make substitution both in (1) and (2):
[tex](5-y-z) +2\cdot y + z = 6[/tex]
[tex]2\cdot (5-y-z)+y+2\cdot z = 6[/tex]
[tex]y = 1[/tex] (4)
[tex]y = 4[/tex] (5)
Which lead to a contradiction, since [tex]4\ne 5[/tex]. Therefore, the system of linear equations has no solution.
Which equation is an identity?
Find m∠ABC in the picture. (it's not solving for x.)
Answer:
20°
Step-by-step explanation:
180-140=40
1/2 of 40=20
I already know the answer but I want to see if people get it right :) will give brainiest to correct answer.
There is a patch of lily pads on a lake. Every day, the patch doubles in size.
If it takes 48 days for the lily pads to cover the entire lake how much days does it take for the lily pads to cover half the lake.
Answer:
is it 47? I'm not sure
if not can you explain it to me
Answer:
47 days
Step-by-step explanation:
Since the patch of lily pads double each day, the day before day 48 would cover half of the lake.
ANSWER QUICKLY AND GET 40 POINTS!!
Answer:
I belibve it's c
Step-by-step explanation:
Answer:
21 savage
Step-by-step explanation:
In the year 2005, a person bought a new car for $24500. For each consecutive year
after that, the value of the car depreciated by 9%. How much would the car be worth
in the year 2008, to the nearest hundred dollars?
Answer:
18500
Step-by-step explanation:
Percent decrease:
\text{Multiply by }(1-r)=(1-0.09)=(0.91)
Multiply by (1−r)=(1−0.09)=(0.91)
2005: \color{green}{24500}
2005:24500
2006: \color{green}{24500} (0.91) = \color{blue}{22295}
2006:24500(0.91)=22295
2007: \color{blue}{22295} (0.91) = \color{red}{20288.45}
2007:22295(0.91)=20288.45
2008: \color{red}{20288.45} (0.91) = \color{orange}{18462.49}
2008:20288.45(0.91)=18462.49
\text{Car value in 2008:}
Car value in 2008:
\$18500
$18500
Use the Associative Property of Addition to write an expression equivalent to (u + 2) + 8.
Which expression is equivalent to (u + 2) + 8 by the Associative Property of Addition?
OA. U + 2 + 8
OB. 8+ (u + 2)
OC. (u + 8) + 2
OD. u + (2+8)
Answer:
D
Step-by-step explanation:
First of, associative property of addition is rearranging the parenthesis and not moving the numbers
A is incorrect because you can not take out the parenthesis in the equation
B is inccorrect because they change the position of the number
C is incorrect because they change the position of number
D is correct. It only change the position of the parenthesis
I NEED HELP NOW PLZ!!!
Answer:
A) P' (0, -9)
Step-by-step explanation:
what is -4m+5=5-4m show all solutions
Answer:
m=0
Step-by-step explanation:
How to solve your question 4 +5=5−4
Step 1: Rearrange Terms 4+5=5−4 4+5=−4+5
Step 2 : Subtract 5 from both sides 4+5=−4+5
-5 -5
Step 3 : Simplify 4m= -4m
Step 4: Add 4m to both sides of the equation 4m= -4m
+4 +4
Step 5: Simplify 8m=0
m=0
I need help plz hurry before the time is over plz plz
Answer:
JK
Step-by-step explanation:
As it is shown in the diagram JK is the segment bisector of MN. That means JK cuts MN in half.
4b + 2b + 1/4 = what
Answer:
6b+1/4
Step-by-step explanation:
4b+2b+1/4
6b+1/4
cant do anything else because only the b can be added.
Answer pls is mathematically is due today in 1 m
Answer:
200.96 units^2 or 64π units^2
Step-by-step explanation:
8^2(3.14) = 200.96 units^2 or 64π units^2
(multiplied by 2 to change the radius to diameter)
Find the measures of all angles and sides help
Answer:
Step-by-step explanation:
All the angles in a triangle add up to 180 degrees. Both angles are 36 degrees so that's 72 degrees.
Angle L = Angle J (Opposite angles are equal)
Angle L = 98
Angle K + Angle L = 180 (Adjacent angles are supplementary)
Angle K + 98 = 180
Angle K = 180 - 98
Angle K = 82
Angle M = Angle K (Opposite angles are equal)
Angle M = 82
amber has 200 tickets to sell for her schools play. she sells 40% of the tickets on thursday. how many tickets does amber sell on thursday
Answer:20
Step-by-step explanation:
just go on omni
what is the density of the oak board? it is 5.5 inches wide, 1.5 inches thick and 3 feet long
multiply 5.5 the width with 1.5 by 3 which gives you 24.75 inches feet long.
5.5 x 1.5 x 3=24.75 that's your answer.
Answer:297 cubic inches, other person is incorrect.
Step-by-step explanation:5.5 inches* 1.5inches * 3 feet
Convert 3 feet to inches and you have 36 inches. So now it becomes 5.5inches*1.5inches*36inches = 297 cubic inches
those are currency exchange rates 1 us dollar = 7.76 hk dollars 1 us dollar =1.47 nk dollars work out the value of 1000 hk dollars in nz dollars
Answer: 1000 HK dollars has the same value as 188.15 NZ dollars.
Step-by-step explanation:
We know that:
1 US dollar = 7.76 HK dollars
1 US dollar = 1.46 NZ dollars.
We have 1000 HK dollars, and we want to know the value in NZ dollars.
First, let's rewrite the 1000 HK dollars in US dollars.
Here we use the relation:
1 US dollar = 7.76 HK dollars
Then:
1 = (1 US dollar/7.76 HK dollars)
Then we can write:
1000 HK = (1000 HK)*1 = (1000 HK)*( (1 US /7.76 HK ))
1000 HK = (1000 HK/7.76 HK)* 1 US = 128.87 US
1000 HK = 128.87 US
Now we can use the relationship:
1 US = 1.46 NZ
Then:
1 = (1.46 NZ)/(1 US)
So we can rewrite:
128.87 US = (128.87 US)*1 = (128.87 US)*( (1.46 NZ)/(1 US))
128.87 US = (128.87 US/1 US)*1.46 NZ = 188.15 NZ
Then:
1000 HK = 128.87 US = 188.15 NZ
So we can conclude that 1000 HK dollars has the same value as 188.15 NZ dollars.