Answer:
Five hundred six million, three hundred forty-one thousand, two hundred nine and fifty four hundredths.
Step-by-step explanation:
506, => Five hundred six million,
341, => three hundred forty-one thousand,
209 => two hundred nine
.54 => and fifty four hundredths.
This is how you would write it.
Hope it helps!
using your age to the nearest whole number and ignoring leap years how many seconds have you been alive
Answer:
409968000
Step-by-step explanation:
13 rounded years is equal to 409968000 seconds
(Fractions) Rewrite the expression using fithteenths. 2/5 - 1/3 =
_ / _ - _ / _
Fill in the blanks (fractions)
Answer:
1/15
Step-by-step explanation:
2/5-1/3=6/15-5/15=1/15
.) Suppose college students produce 650 pounds of solid waste each year, on average. Assume that the distribution of waste per college student is normal with a mean of 650 pounds and a standard deviation of 20 pounds. What is the probability that a randomly selected student produces either less than 620 or more than 700 pounds of solid waste
Answer:
0.073 = 7.3% probability that a randomly selected student produces either less than 620 or more than 700 pounds of solid waste
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Mean of 650 pounds and a standard deviation of 20 pounds.
This means that [tex]\mu = 650, \sigma = 20[/tex]
What is the probability that a randomly selected student produces either less than 620 or more than 700 pounds of solid waste?
Less than 620:
pvalue of Z when X = 620. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{620 - 650}{20}[/tex]
[tex]Z = -1.5[/tex]
[tex]Z = -1.5[/tex] has a pvalue of 0.0668
More than 700:
1 subtracted by the pvalue of Z when X = 700. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{700 - 650}{20}[/tex]
[tex]Z = 2.5[/tex]
[tex]Z = 2.5[/tex] has a pvalue of 0.9938
1 - 0.9938 = 0.0062
Total:
0.0668 + 0.0062 = 0.073
0.073 = 7.3% probability that a randomly selected student produces either less than 620 or more than 700 pounds of solid waste
The probability distribution for a
random variable x is given in the table.
-3
-2
0
2
3
Probability
.17
.13
.33
.16
.11
.10
Find the probability that x < 0
Answer:
.21
Step-by-step explanation:
is
Answer: 0.79
Step-by-step explanation:
You are going to visit your aunt who lives 25 miles away . You have already traveled 7.7 miles. What percentage of the trip is still ahead of you?
The percentage of the trip that is still ahead of you is 69.2%.
What is the percentage?The percentage is given as,
Percentage (P) = [Final value - Initial value] / Initial value x 100
You are going to visit your aunt who lives 25 miles away. You have already traveled 7.7 miles.
The percentage of the trip that is still ahead of you is calculated as,
P = [(25 - 7.7) / 25] x 100
P = (17.3 / 25) x 100
P = 0.692 x 100
P = 69.2%
More about the percentage link is given below.
https://brainly.com/question/8011401
#SPJ2
Evaluate the expression 2a + 3b + 6 when a=2 and b=4
Answer:
22 or 4+12+6
Step-by-step explanation:
Since A is equal to 2, times 2 by 2 and get 4
Since B= 4 you times 3 by 4 and get 12
4+12 is 16
16 plus 6 is 22
Solve similar triangles (advanced)
Solve for x
x=?
Answer:
x = 1.2
Step-by-step explanation:
AD/AB = DE/BC (Similarity Theorem)
AD = 6 + 4 = 10
AB = 6
DE = 2
BC = x
Plug in the values
10/6 = 2/x
Cross multiply
10*x = 2*6
10x = 12
Divide both sides by 10
x = 12/10
x = 1.2
please dont show this
Can you help me please?!
30.) d=26
Take the equation
2 x (7 + d)
Now plugin 6 for d
2 x (7 + 6)
2 x (13)
26
31.) c
Take the equation
16b+8/2
Now plugin 4 for b
16(4)+8/2
64+8/2
64+4
68
what is the answer to this 4 - 1 3/4
the answers is 9/4
simplified its 2 1/4 in mixed number form
decimal is 2.25
1. The first bus stop on a bus route is 4 miles from school. How many yards is the first bus stop from school? A) 12 yards B) 1760 yards C) 5280 yards D) 7040
Answer:
D. 7040 yards
Step-by-step explanation:
Find the volume of each shape.
Answer:
Step-by-step explanation:
find the area of the figure use 3.14
Answer:
466.08 m²
Step-by-step explanation:
The figure is composed of a triangle and a semicircle.
Therefore,
Area of the figure = area of the triangle + area of the semicircle
= ½*b*h + ½*πr²
Where,
b = 24 m
h = 20 m
π = 3.14
r = ½ of 24 m = 12 m
Substitute each value into the equation
Area of the figure = ½*24*20 + ½*3.14*12²
= 240 + 226.08
= 466.08 m²
A pizza pan is removed at 9:00 PM from an oven whose temperature is fixed at 450°F into a room that is a constant 70°F. After 5 minutes, the pizza pan is at 300°F.
(a) At what time is the temperature of the pan 125°F?
(b) Determine the time that needs to elapse before the pan is 150°.
(c) What do you notice about the temperature as time passes?
Answer:
A) It will get to a temperature of 125°F at 9:19 PM
B) It will get to a temperature of 150°F at 9:16 PM
C) as time passes temperature approaches the initial temperature of 450°F
Step-by-step explanation:
We are given;
Initial temperature; T_i = 450°F
Room temperature; T_r = 70°F
From Newton's law of cooling, temperature after time (t) is given as;
T(t) = T_r + (T_i - T_r)e^(-kt)
Where k is cooling rate and t is time after the initial temperature.
Now, we are told that After 5 minutes, the temperature is 300°F.
Thus;
300 = 70 + (450 - 70)e^(-5k)
300 - 70 = 380e^(-5k)
230/380 = e^(-5k)
e^(-5k) = 0.6053
-5k = In 0.6053
-5k = -0.502
k = 0.502/5
k = 0.1004 /min
A) Thus, at temperature of 125°F, we can find the time from;
125 = 70 + (450 - 70)e^(-0.1004t)
125 - 70 = 380e^(-0.1004t)
55/380 = e^(-0.1004t)
In (55/380) = -0.1004t
-0.1004t = -1.9328
t = 1.9328/0.1018
t ≈ 19 minutes
Thus, it will get to a temperature of 125°F at 9:19 PM
B) Thus, at temperature of 150°F, we can find the time from;
150 = 70 + (450 - 70)e^(-0.1004t)
150 - 70 = 380e^(-0.1004t)
80/380 = e^(-0.1004t)
In (80/380) = -0.1004t
-0.1004t = -1.5581
t = 1.5581/0.1004
t ≈ 16 minutes.
Thus, it will get to a temperature of 150°F at 9:16 PM
C) As time passes which means as it approaches to infinity, it means that e^(-kt) gets to 1.
Thus,we have;
T(t) = T_r + (T_i - T_r)
T_r will cancel out to give;
T(t) = T_i
Thus, as time passes temperature approaches the initial temperature of 450°F
there are 640 students in one school. How many boys are there if it is known that 1/4 of the number of girls is equal to one sixth of the number of boys?
Answer:
960
Step-by-step explanation:
You have to figure out what 1/4th of 640 is, which is 160.
It says that number is 1/6th of boys, so you multiply by the inverse.
160x6 = 960
well since all of the girls = 4/6ths of the boys that would mean 24/24girls=16/24boys
16/24 is 66.666666666667% of 24/24
66.666666666667% of 640 is426.666666667 but in my head i would round up so:
Approximately
427 boys and 213 girls.
Find the rate of change
Answer:
2
Step-by-step explanation:
the rate of change is Rise/ Run
= Δy / Δx
= (y2 – y1) / (x2 – x1)
= (1 - (-1))/(-1 - (-2))
=2/1
=2
PLEASE HELP ME, THIS MEANS EVERYTHING TO ME ITS APART OF MY FINALS.❗
The ages of students who play racquetball at a school are shown in the histogram below.
How many students play racquetball at the school?
A.
60
B.
51
C.
54
D.
57
Answer:
Uhhhh... 54?
Step-by-step explanation:
Just add them together.
Which fraction is marked by the point on the number line?
Answer:
where is the numer line?
Step-by-step explanation:
Evaluate the expression, 12w - 5 if w = 4*
(2 Points)
Enter your answer
Answer:
43
Step-by-step explanation:
PLS HELP ME OUT WITH THIS
Student A: 78, 99, 80, 85, 95, 79, 85, 96
Student B: 100, 80, 79, 75, 92, 93, 75, 78, 84
Student A Mean:
Student A Mean Absolute Deviation:
Student B Mean:
Student B Mean Absolute Deviation:
Answer:
Student A Mean: 697/8=87.125
Student A Mean Absolute Deviation: 7.1563
Student B Mean: 756/9=84
Student B Mean Absolute Deviation: 7.3333
28 is equal to how many hundredths and tenths
Answer:
0 hundredths. 2 tenths and 8 ones
8th grade math, please help.
Answer:
V = 15/4π = 3.75π
Step-by-step explanation:
V=πr^2h
V=π(1/2^2)15
V=π(1/4)15
V=15/4π
Emma is training for a 10-kilometer race. She wants to beat her last 10-kilometer time, which was 1 hour 10 minutes. Emma has already run for 55 minutes. Which inequality can be used to find how much longer she can run and still beat her previous time? (1 hr = 60 min)
let x be how much longer she can run the race and still beat her previous time
55(min) + x(min) < 1(hr) + 10(min)
55(min) + x(min) < 60(min) + 10(min)
55 + x < 60 + 10
x < 60 + 10 - 55
x < 15(min)
Answer:
Answer is A
Step-by-step explanation: Taking the test so the answer is A
how many rooms can be painted using 5 gallons of paint if each room averages 5/6 gallon of paint?
A. 4
B. 5
C. 6
D. 7
Answer:
I think the answer is 6. i dont know if that's right though
2) If 3/5 of students carry an iPhone, what fraction of students is this using 75 as the denominator
Answer:
45/75
Step-by-step explanation:
75/5 = 15
15x3 = 45
what is the approximate simple interest earned on $2460 if it is invested at 5.25% for 3 1/2 years
A. $452
B. $387
C. $369
D. $129
Answer:
i think its c im not sure
Step-by-step explanation:
Jerry pick 16 red apples. He picked 27 green apples. How many apples did Jerry pick? Label the model. Write a number sentence with an for the missing number Solve
Answer:
48 ksjsnsjsnwwisns sisnwbsisbd
(ignore this) question is below.
Hi can you guys help me with this please
Answer:
C
Step-by-step explanation:
i think
Answer:
C
Step-by-step explanation:
The graph below shows the solution for a series of two equations. The first equation is y = -7x - 3. What is the other equation
shown on the graph?