Answer:
b. TWO SAMPLE T TEST FOR POPULATION MEANS
Step-by-step explanation: the problem mentions difference and the mean number of minutes so you know it'll be a difference in population MEAN
someone please answer this
Answer:
9.4m is the answer.
Step-by-step explanation:
a = 8m
b = 5m
c = ?
According to the Pythagoras theorem,
a² + b² = c²
8² + 5² = c²
64 + 25 = c²
89 = c²
c = 9.433
Rounding off,
c = 9.4m
Write the number as a percent.
3/20
Answer:
15%
Step-by-step explanation:
not that hard just make it a decimal then at the point go back twice and there its 15%
Answer:
15%
Step-by-step explanation:
Since 100 isn't the denominator we need to make it a denominator.
3/20 x 1/5 = 3/100 we need to do the same to the denominator because whatever we do to the denominator has to do with the numerator 3 x 5 = 15,
15/100 means 15%!
PLEASE HELP ME 20 POINTS FIR THE CORRECT ANSWER
Answer:
AC ≈ 11 cm
Step-by-step explanation:
i used the pythagorean theorem twice . . .
1st was with ΔCED:
EC² + 7² = 8²
EC² = 64-49
EC = √15
2nd was with ΔAED:
AE² + 7² = 10²
AE² = 100-49
AE = √51
√51 + √15 ≈ 11
3. Shawn has a greenhouse in the shape shown in the figure below. He keeps new plants in the
room represented by the shaded area. What is the perimeter of the room that is shaded
A.74 ft.
B. 86 ft.
C. 93 ft.
D. 130 ft.
Answer:
74
Step-by-step explanation:
What is the volume, in cubic inches, of a cone that has a radius of 8 inches and a height of 12 inches? Use 3.14 for π , and round to the nearest hundredth. if you answer this WITH NO LINK I will give extra points!
Answer:
803.84 in^3
Step-by-step explanation:
First of all we have to find the base area
base area = radius^2 x 3.14 = 8^2 x 3.14 = 64 x 3.14 = 200,96 in^2
the volume can be find with this formula:
V = (base area x height)/3
V = (200.96 x 12)/3 = 803.84 in^3
An airline reports that 85% of its flights arrive on time. To find the probability that its next four flights into LaGuardia Airport all arrive on time, can we multiply (0.85)(0.85)(0.85)(0.85)? Why or why not?
Answer:
The answer is "no".
Step-by-step explanation:
No, because the probability besides simultaneous flights to arrive on time are not self-sufficient for every flight (when the first flight was late, therefore the probabilities during the next flight were significantly greater), because then the standard multiplication principle would be used for explanatory variables.
Yes, we can multiply (0.85)(0.85)(0.85)(0.85)
Let the four flight be represented by A, B, C, and D respectively
Probability that each of the flights arrive on time is 0.85
That is:
Probability that flight A arrives on time, P(A) = 0.85
Probability that flight B arrives on time, P(B) = 0.85
Probability that flight C arrives on time, P(C) = 0.85
Probability that flight D arrives on time, P(D) = 0.85
Probability that the next four flights arrive on time will be:
P(A) x P(B) x P(C) x P(D) = 0.85 x 0.85 x 0.85 x 0.85
Yes, we can multiply (0.85)(0.85)(0.85)(0.85)
Learn more here: https://brainly.com/question/22983912
Find the surface area please!
Answer:
158 in²Step-by-step explanation:
First we can write the equation to find the surface area of a rectangular prism[tex]A = 2(w*l+h*l+h*w)[/tex]
Now rewrite filling in variables
[tex]A = 2(3*5+8*5+8*3)[/tex]
Solve. Keep in mind the order of operations
After solving, you should get 158.
Since these measurements were done in inches, we need to add inches/in to the end.
Also, since it is area, we need to add ²
158 in²
Which equation is written in slope-intercept form?
y = 3x-2
X=1/2y+8
2x + 5y = 12
Зу = 8x - 5
Explain what median is and how to solve for it
Answer: See below
Step-by-step explanation:
Median is the value that separates the higher data and lower data. In simple terms, it is the "middle" value of the whole set of data. There are two different ways to solve for the median.
1. If the data set has an odd number of values, line the values up in increasing order. Then the value or number that lies in the middle will be the median.
For example, if we are given a data set {1, 3, 4, 2, 5}. First, we line them up by increasing order, which becomes {1, 2, 3, 4, 5}. Since it is an odd number set, we can directly get the median which is 3.2. If the data set has an even number of values, line the values up in increasing order. Then there will be two number that lies in the "middle" together. We add them up and divide them by 2. The average of the two numbers will be the median of the set.
For example, if we are given a data set {2, 6, 4, 10, 8, 12}. First, we line them up by increasing order, which becomes {2, 4, 6, 8, 10, 12}. Since it is an even number set, we get our median from the two numbers in the middle, which are {6, 8}. We add them together to get 14 and then divide by 2 which is 7. So the median will be 7.Hope this helps!! :)
Please let me know if you have any questions.
Which fractions equal the whole number 4?
Choose each answer not just one
A. 12/3
B. 4/1
C. 6/4
D. 4/6
Answer:
A, B
Step-by-step explanation:
A. 12/3=4
B. 4/1=4
C. 6/4=1 1/2
D. 4/6=2/3
Answer:
A and B
Please mark as brainliest
Have a great day, be safe and healthy
Thank u
XD
Which fraction is the product of 8/7 x 9/10?
Answer:
[tex] \frac{8}{7} \times \frac{9}{10} \\ = \frac{8 \times 9}{7 \times 10} \\ = \frac{72}{70} \\ = 1.02[/tex]
ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
Mr Lim, who is in Singapore, wants to make a phone call to his client in
Chicago. The local time in Chicago is 14 h behind the local time in Singapore.
If Mr Lim wants to call his client at 7 a.m. (Chicago local time), at what time
(Singapore local time) must he make the call?
Answer:
5pm
........................
Mr. Lim has to make calls at 5:00 pm if he wants to talk with his client at 7:00 AM in Chicago due to the different time zone.
What are Time Zones?A time zone is any place that observes the same standard time. For current time zones around the world, see the interactive Time Zone Map.
Given, Mr. Lim, who is in Singapore, wants to make a phone call to his client in Chicago. The local time in Chicago is 14 h behind the local time in Singapore. If Mr. Lim wants to call his client at 7 a.m. (Chicago local time)
Since there is a time difference between the two countries. Mr. Lim has to make calls 14 hours before as per the local time zone
14 hours before 7 AM is 5: 00 PM.
Therefore, Due to the time difference, Mr. Lim must make calls at 5:00 p.m. if he wishes to speak with his client at 7:00 a.m. in Chicago.
Learn more about time zones here:
https://brainly.com/question/3818424
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I will give you brainliest answer if u help me with 4 problems
two squares of the side 10 cm were joined together to form a rectangle. Calculate the perimeter of the rectangle.
Answer:
Step-by-step explanation:
If they were joined together, wouldn't the length of both squares combined be 20cm?
Therefore, it'd be (10+20+10+20) for the perimeter.
60cm.
what is 5*7x80 i need help
Answer:
35x⁸⁰
Step-by-step explanation:
that's the answer
PLZZZ HELP
QUESTION:Find the slope between the 2 points (rise/run)
What is the y-intercept
Write the equation in y=mx+b
Answer:
your answer should be -2/3
During halftime of a soccer game, a sling shot launches T-shirts at the crowd. A T-shirt is launched from a height of 6 feet with an initial upward velocity of 64 feet per second. The T-shirt is caught 43 feet above the field. How long will it take the T-shirt to reach its maximum height? What is the maximum height? What is the range of the function that models the height of the T-shirt over time?
The T-shirt takes nothing second(s) to reach its maximum height.
(Type an integer or a decimal.)
The T-shirt's maximum height is nothing feet above the field.
(Type an integer or a decimal.)
What is the range of the function?
A.
6≤h≤70
B.
All real numbers
C.
43≤h≤70
D.
0≤h≤70
Answer:
During halftime of a footballgame, a sling shot launches T-shirts at the crowd. A T-shirt is launched from a height of 33 feet with an initial upward velocity of 64 feet per second. The T-shirt is caught 48 feet above the field.
True or false: In order to fill this figure with units cubes, you would need to fill in 7 cubes in length, 10 cubes in height, and 3 cubes in width. Then, you would fill the reset of the space with cubes
Answer:
true
Step-by-step explanation:
Answer:
True
Step-by-step explanation:
I took the test.
Brainliest please
Please help me! It’s due soon!
What is the exact value of sin(345degree)?
Answer:
Step by-step explanation:
cos(90-345)
cos(-255)
I know it doesnt match exactly, but it should give you what you need in toder to get the right answer. Hope this helps!
please help please help please PLZZZ HELP
QUESTION:Find the slope between the 2 points (rise/run)
What is the y-intercept
Write the equation in y=mx+b
Answer:
The y-intercept is -4
y= -2/3 + (-4)
Giving brainliest!!!!
Answer:
I believe it maybe 300 cm³
15. Find the value(s) of the variable(s). If necessary, round decimal answers to the nearest
tenth.
52
X
13
Answer:
15) x = 10.2
16) x = 22.7 and y = 44.6
Step-by-step explanation:
15) tan 52° = 13/x
x = 13/tan 52°
16) sin 90°/50 = sin 27°/x
x = 50(sin 27°)
sin 90°/50 = sin 63°/y
y = 50(sin 63°)
What does ABCD : EFGH mean?
I'm asking about this thing ( : ), not the letters. Does it mean equal to?
The colon is the symbol ":". It is used in a number of different ways in mathematics. 1. To denote ratio or odds, as in 2:1 (voiced "two to one").
Do this help?
What is the surface area of the triangular prism?
Answer:
The answer is 168!
Step-by-step explanation:
6*4=24 (There are two triangles so you don't have to divide by 2, 24 is simply the answer to both), 6*9=54, 5*9*2=90, 90+54+24=168! I hope this helps! Have a great rest of your day!
Answer:
A≈114.12
Step-by-step explanation:
A=2AB+(a+b+c)h AB=s(s﹣a)(s﹣b)(s﹣c)
s=a+b+c/2
A=ah+bh+ch+1
2﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=9·5+6·5+4·5+1
2·﹣94+2·(9·6)2+2·(9·4)2﹣64+2·(6·4)2﹣44≈114.12459
here is the full explanation , I took a blackboard pavcs math quiz
i want it now pls help me im not good in maths
Answer 3 ten of numbers between -5/6,5/8
multiply there denominators by any number ...
-5/6×48= -40/48
5/8×48= 30/48
Hence
30/48,31/48,32/48,33/48,34/48,35/48,36/48,37/48,38/48,39/38.
Answer 4
1. x-5=9
X=9+5=14
2. 7= y+2
7-2=y
5=y
Answer 5 X/9=-2
X= -2×9
X= -18
5t= 30
t=30/5
t=6
hope it helps friend
what is 2,0000 time 3,000000 =
Answer:
60,000,000,000
Step-by-step explanation:
You can add the zeros and multiply 3 x 2 which is 6 then add the zeros in both numbers.
the coma is misplaced to it's
20,000 x 3,000,000 = 60,000,000,000
Answer:
60,000,000,000
Step-by-step explanation:
You can add the zeros and multiply 3 x 2 which is 6 then add the zeros in both numbers.
the coma is misplaced to it's
20,000 x 3,000,000 = 60,000,000,000
Step-by-step explanation:
someone please help me im timed
Answer:
C
Step-by-step explanation:
All sides of a square are equal.
How many pairs of opposite sides are parallel? no pairs 1 pair 2 pairs
Answer:
1 pair
Step-by-step explanation:
The top and bottom sides can go forever without crossing
Answer:
1
Step-by-step explanation: because the top and bottom a pair
Which of these number sentences is NOT true?
A. 4,000,000 millimeters =4 kilometers
B. 300 millimeters >3 centimeters
C. 5 meters > 5,000 millimeters
D. 2,000 meters < 20 kilometers
Answer: D
i hope this helps!
Answer: the answer is D!
Step-by-step explanation: