3.96 ft
Step-by-step explanation:
An freely-falling object dropped from a certain height travels a distance equal to
h = -16t^2
where t is the time elapsed. So after 1.3 s, the ball has traveled
h = -16(1.3)^2 = -27.04 ft
This means that after 1.3 s, the ball is 31 - 27.04 = 3.96 ft above the ground
3. What is the missing term in the sequence 10, 12, 16, 24,
, 72?
A. 32
B. 40
C. 48
D. 64
4. What rule is being used in this sequence 25, 28, 26, 29, 27?
A. Add 3.
B. Add 3, subtract 2...
C. Subtract 3, add 2...
D. Multiply by 3, subtract 2...
5. What is the value of kin 6k - 19 = 23?
A. 14
B. 11
C. 7
D. 5
Answer pls. ASAP Need it now
Answer:
3. B
4. B
5. C
Step-by-step explanation:
Write 346% as a decimal
Answer:
3.46
Step-by-step explanation:
Answer:
3.46
Step-by-step explanation:
346% = 346/100 = 3.46
I need the answer fast pls
HELP ME PLlZZZZ
Find point Z that partitions the directed line segment XY in the ratio of 3:2 where X(-4, -2) and Y(6, 3).
Answer:
(2 , 1)
Step-by-step explanation:
point Z (x, y)
x = 3/5 × (6+4) + (-4)
= 3/5×10 -4
= 6-4
= 2
y = 3/5 ×(3+2) + (-2)
= 3/5 ×5 -2
= 3-2
= 1
so, point Z => (2 , 1)
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of business travelers is selected and each traveler is asked to provide a rating for the Miami International Airport. The ratings obtained from the sample of business travelers follow.
3 7 8 9 10 10 10 9 9 9 9 8 5
6 7 7 9 8 10 9 8 7 6 8 7 9
5 3 9 10 10 9 9 8 9 8 6 10 8
4 7 3 10 8 9 8 10 10 8 8
Develop a 95% confidence interval estimate of the population mean rating for Miami (to 2 decimals).
Answer:
The 95% confidence interval estimate of the population mean is (7.38, 8.46).
Step-by-step explanation:
Before building the confidence interval, we need to find the mean and standard deviation of the sample.
In this sample, there are 50 values.
Mean of the sample:
Sum of all values divided by the number of values.
With the help of a calculator, the mean is of 7.92.
Standard deviation:
Square root of the division of the sum of the difference squared between each value and the mean by the number of the values.
With the help of a calculator, the standard deviation is of 1.8958.
Confidence interval:
We have the confidence interval for the sample, which means that the t-distribution is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 50 - 1 = 49
95% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 49 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.95}{2} = 0.975[/tex]. So we have T = 2.01
The margin of error is:
[tex]M = T\frac{s}{\sqrt{n}} = 2.01\frac{1.8958}{\sqrt{50}} = 0.54[/tex]
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 7.92 - 0.54 = 7.38
The upper end of the interval is the sample mean added to M. So it is 7.92 + 0.54 = 8.46
The 95% confidence interval estimate of the population mean is (7.38, 8.46).
If a fair coin is tossed 8 times, what is the probability, to the nearest thousandth, of getting exactly 2 tails?
Answer:
0.109
Step-by-step explanation:
Probability is expressed by the number of desirable outcomes over the total outcomes. The total outcomes would be 2^8 because there are two possibilities in each flip, and using the fundamental counting principle, you get 2^8 total outcomes. Next, to find the amount of situations where you only flip two tails, you use 8 choose 2 because we are looking for the amount of ways you can choose 2 out of the 8 to be tails. 8 choose 2 is the same as:
8! / (6! x 2!) - 28
So, the probability is:
28 / 2^8 or 28/256
As a decimal, this is: 0.109375
And rounded to the nearest thousandth it's 0.109
simplify (3x + 7) - (4x -2)
Answer:
(3x + 7) - (4x -2) = 3x + 7 - 4x + 2 = 9 - x
Convert the time. Enter your answer in the box.
4 minutes 53 seconds =
seconds
Write 2.5 : 4.5 as a whole number ratio in it's simplest from.
Answer: : = 5 : 9
Step-by-step explanation:
Answer:
i think it would be 5:9
Step-by-step explanation:
Change values to whole numbers.
Convert any decimal numbers to integers by multiplying both sides by 101 = 10 to eliminate all, 1, decimal places.
We then have:
2.5 : 4.5 = 25 : 45
Try to reduce the ratio further with the greatest common factor (GCF).
The GCF of 25 and 45 is 5
Divide both terms by the GCF, 5:
25 ÷ 5 = 5
45 ÷ 5 = 9
The ratio 25 : 45 can be reduced to lowest terms by dividing both terms by the GCF = 5 :
25 : 45 = 5 : 9
Therefore:
2.5 : 4.5 = 5 : 9
I need help this is due Tuesday!
Whats the total package cost of the pond and he said he would have to be full of Candy :')
What is the measure of angle IXA?
Answer:
is it 120
Step-by-step explanation:
it is 120 I can't really explain how I got it though
The total length of your apartment is 30 feet and the total width is 20 feet. What is the total area of the apartment? a) 50 square feet b) 120 square feet O c) 500 square feet d) 600 square feet
Answer:
D
Step-by-step explanation:
Area = l × w
= 30 × 20
= 600 feet2
What is the product? Complete the equation.
-10 • 45
Factor 5x+35 . If the expression cannot be factored, write cannot be factored.
Answer:
5 ( x + 7 )
Step-by-step explanation:
= 5x + 35
= 5 ( x + 7 )
Therefore, after factorizing you will get 5 ( x + 7 )
Answer:
hey , it can be factored:
this is the factored expression:
5(x+7)
This is dum y do we need math like wth
Step-by-step explanation:
To get through school nd have something to do w your life!
help with the Triangle sum theorem
Answer:
180
Step-by-step explanation:
If you add 60 +60 + 60, or 60 + 50 + 70, both would add up to 180, since x = 60. This is why both triangles, have a complete of 180.
Answer:
A triangle has 3 sides in every triangle all the three sides should sum up to 180°.
In the 1st figure,
70+50+x=180 (being sum of triangle)
now 120+x=180
x=180-120
=60
Step-by-step explanation:
In the 2nd figure
x is 60
60+60+60=180,
Thus explained
PLEASE HURRY
Michael needed milk to make pancakes. He poured the milk into this container
250 ml
200 ml
150 ml
100 mL
50 mL
How much milk did he pour into the container?
A 140 mL
B. 150 mL
C. 160 mL
D. 170 mL
Answer:
Step-by-step explanation:
on the 250ml ÷ 140 ml = 1L and 78757ml
on the 200 ml ÷ 150 ml = 1L and 333ml
on the 150 ml ÷ 160 ml = 9375ml
on the 100 ml ÷ 170 ml = 58832ml
plz mark me as brainliest
Plzz help as soon as possible
Answer:
The Inequality is x<2.
Have a great day!!!
WILL
GIVE
BRAINLIST
.
..
.
..
The correct answer is Option (4).
PLssssssssssssssssssssssssssssssssss help.
Answer:
A. 9.8ft
Step-by-step explanation:
work out arc length using this formula
[tex]2\pi \: \times r \times \frac{\theta}{360} [/tex]
r is the radius, 7 in this case and theta(the symbol above 360) is the angle, 80 in this case
PLS HELP ! Find the length of the third side. if necessary, round to the nearest tenth.
Answer:
242 or 15.6
Step-by-step explanation:
Three postal workers can sort a stack of mail 10 minutes , 35 minutes, and 70 minutes respectively. find how long it takes them to sort the mail if all three work together
9514 1404 393
Answer:
7 minutes
Step-by-step explanation:
The total of stacks per minute is ...
1/10 +1/35 +1/70 = (7+2+1)/70 = 1/7 . . . . stacks per minute
The rate in minutes per stack is the reciprocal of this.
Working together, the workers can sort a stack of mail in 7 minutes.
Calculate the surface area
order these numbes from least to greatest: -2, 0, -6, 4, 8
Step-by-step explanation:
-6,-2,0,4,8
this is the answer
Translating between Tables,
Graphs, and Equations
Make a table of value and graph the equation
Y=3x-5
Answer:
Table of values
[tex]x \to y[/tex]
[tex]0 \to -5[/tex]
[tex]1 \to -2[/tex]
[tex]2 \to 1[/tex]
[tex]3 \to 4[/tex]
[tex]4 \to 7[/tex]
[tex]5 \to 10[/tex]
See attachment for graph
Step-by-step explanation:
Given
[tex]y = 3x - 5[/tex]
Solving (a): Make a table
Considering the values of x from 0 to 5, we have:
When [tex]x = 0[/tex]
[tex]y = 3x - 5 \to 3 * 0 - 5 = -5[/tex]
When [tex]x = 1[/tex]
[tex]y = 3x - 5 \to 3 * 1 - 5 = -2[/tex]
When [tex]x = 2[/tex]
[tex]y = 3x - 5 \to 3 * 2 - 5 = 1[/tex]
When [tex]x = 3[/tex]
[tex]y = 3x - 5 \to 3 * 9 - 5 = 4[/tex]
When [tex]x = 4[/tex]
[tex]y = 3x - 5 \to 3 * 4 - 5 = 7[/tex]
When [tex]x = 5[/tex]
[tex]y = 3x - 5 \to 3 * 5 - 5 = 10[/tex]
So, we have:
[tex]x \to y[/tex]
[tex]0 \to -5[/tex]
[tex]1 \to -2[/tex]
[tex]2 \to 1[/tex]
[tex]3 \to 4[/tex]
[tex]4 \to 7[/tex]
[tex]5 \to 10[/tex]
Solving (b): The graph
See attachment
The moon appears red during a lunar eclipse because red is the __________ wavelength of light in the color spectrum present in sunlight.
longest
shortest
brightest
Answer:
Longest
Step-by-step explanation:
The moon appears red during a lunar eclipse because red is the Longest wavelength of light in the color spectrum present in sunlight.
-Please Mark As Brainliest
Boy and he likes swimming =
Answer:
hot boy shirtless
Step-by-step explanation:
Which speed is the fastest?
A 18 feet in 20 minutes
B 90 feet in 2.5 hours
C 20 yards in 1.5 hours
D 3 and 2/3 yards in 15 minutes
!!!Major help. I will give a brainly!!!!
Image is above or below
A.y=x/2
B.y=x+4
C.y=x-4
Dy=2x
Answer:
y = x - 4
When x = 8 , y = 8 - 4 = 4
when x = 12, y = 12 - 4 = 8
Option C
please help!!! Thanksss
Answer:
The image's not clear!
Step-by-step explanation:
Answer:
The answer is 30 (C)