Answer:
Good to know :D
Step-by-step explanation:
Answer:
Cool.
Step-by-step explanation:
When designing a study to determine this population proportion, what is the minimum number of drivers you would need to survey to be 95% confident that the population proportion is estimated to within 0.04
Answer: 601
Step-by-step explanation:
The formula to find the minimum sample size(n) , if the prior population proportion is unknown:
[tex]n=0.25(\dfrac{z^c}{E})^2[/tex], where E = margin of error , [tex]z^c[/tex] = critical z-value for confidence level c.
Given : E = 0.04
Z-value for 95% confidence = 1.96
So, the minimum sample size required = [tex]0.25(\dfrac{1.96}{0.04})^2=0.25(49)^2[/tex]
[tex]= 0.25\times 2401=600.25\approx601[/tex]
Hence, the minimum sample size required = 601
PLS HELP
John was 3 5/8 feet tall when he was three years old. He is now 6 1/4 feet tall. How many feet did he grow in total?
Prediction:_________________________________________________
Expression: ______________________________
Simplify
turn the 5/8 into 2.5/4 then add 1/4. Now it is 3.5/4. Add 3 + 6 = 9 so you add the 3.5/4 and it turns into 9 3.5/4. Subtract 3 and you get your answer?
-Can I please have Brainliest
Prompt: A car is traveling down a highway at the constant speed, described by the equation “d=65t” , where “d” represents the distance, in miles, that the car travels at this speed in “t” hours.
Question 1:
1. What does 65 tell us in this situation?
a. The car travels 65 miles in 1 hour.
b. The constant of proportionality is 65 miles per hour.
c. The car traveled a total of 65 miles
d. The car is traveling 65 miles per hour.
—————————————————————
Question 2:
2. How many miles does the car travel in 1.5 hours?
The car travels □ miles in 1.5 hours.
—————————————————————
Question 3:
3. How long does it take the car to travel 26 miles at this speed?
“Type your response in the down below”
Please Help!
Answer:
1) d
2) 97.5 miles
3)I am unsure on
Step-by-step explanation:
1) d=65t means that it is moving 65 miles per that amount of time (in this case using mph)
2) you take your equation "d=65t" and fill in your time (1.5) 65(1.5)=97.5
3) I don't know but possibly 2.5 minutes? (65/25) but I'm not sure I'm sorry
Which best represents the greatest amount of change that took place from one day to the next day over the four-day period?
Answer:
A loss of 93.98 points. Hope this is helpful!
Step-by-step explanation:
Answer:
fat dickaling
Step-by-step explanation:
Determine the slope, y-intercept and equation of the graph below.
Answer:
slope: -4/5
y-intercept: 3
equation: y = -4/5x + 3
Step-by-step explanation:
Please help me!!!!! I need to turn this in!!!!
Please answer, 50 points and I gotta finish this test
What is the radical in simplest radical form? Please show all steps
sqrt 5/8 (Square root, 5 out of 8 as a fraction)
The square root of 8 in radical form is represented as √8 which is also equal to 2√2 and as a fraction, it is equal to 2.828 approximately. Squares root of a number is the number, which, on multiplying by itself gives the original number. Since 8 is not a perfect square, hence the value is represented in root form.
Given f(x) = 3x + 9, find x when f(x) = 21.
A)
3
B)
4
C)
7
D)
10
Answer:
B)
Step-by-step explanation:
3(4) + 9 = 21
A train traveled from one city to another city in 4 hours at a speed of 70 mph.
The retum trip was made in 5 hours. Find the speed for the return trip.
Answer:
56miles/hr
Step-by-step explanation:
Given parameters:
Time taken for the to travel = 4hrs
Speed of the train = 70mph
From this data, let us find the distance of the trip;
Distance =Speed x time
Therefore, insert the parameters;
Distance = 70mph x 4hr = 280miles
Now;
Return trip took, 5hrs,
Speed = ?
Speed = [tex]\frac{distance}{time}[/tex]
Insert the parameters and solve;
Speed = [tex]\frac{280}{5}[/tex] = 56miles/hr
A password is formed by selecting three letters from the alphabet, followed by one number from 0 to 9. If
repetition is not allowed, how many potential passwords can be created?
A. 156,000
B.175,760
C.140,400
D.85
The number of potential passwords that can be created in this scenario is; C: 140400
How to solve propbability Combinations?There are 26 alphabets in english. Now, if there are no repetitions, then;
Number of ways of selecting first letter = 26
Number of ways of selecting second letter = 25
Number of ways of selecting third letter = 24
Thus;
Number of ways of selecting three letters from the alphabet if there is no repetition is; P(3 letters) = 26 * 25 * 24 = 15600
Number of ways of selecting 1 out of the 9 numbers is = 9
Thus;
Potential passwords that can be created = 15600 * 9 = 140400
Read more about Combinations at; https://brainly.com/question/4658834
Which is not a correct way to represent the relation "the second number is 1 less than three times the first number"?
y=1 - 3x
y= 3x + (-1)
y= -1 + 3x
y= 3x - 1
Answer:
3x-1
Step-by-step explanation:
Answer:
y = 3 x - 1
Step-by-step explanation:
Factor f(x)= 2x^4 -12x^3 +6x +20x and please show all steps
What is the value of 2 in 8.702
Answer:
the value of 2 in the number 8.702 is 0.002 which is 2 thousandths
A train travels 20 feet in 1/5 second. At this same speed how many feet will it travel in three seconds
Answer:
It will travel 300ft. in three seconds
Step-by-step explanation:
Between which two consecutive integers does 87 lie?
The two numbers are 43 and 44.
The quotient of m and 7.
Use the distributive property
Please help me to solve this question
Answer:
5
Step-by-step explanation:
Solve the inequality below
-8x + 4 > 20
Include x and number in answer
Answer:
x<-2
Step-by-step explanation:
You first subtract 4 from both sides. Then you divide both sides by -8 (note: when you multiply or divide by a negative the sign flips. Then you get your answer
Last year, 120 students were sick at school. This year, 20% fewer students are sick. How many students are sick this year?
Answer:
96
Step-by-step explanation:
Which of the following values are solutions to the inequality –9 – 5x > -1?
I. 2
II. - 5
III. – 10
Answer:
20)12
Step-by-step explanation:
Answer:
x < -8/5
Step-by-step explanation:
-9 - 5x > -1
-5x > 8
x < -8/5
identiy why trade improved during the middleages.
this is the question.
Answer:
intermarriage
Step-by-step explanation:
people from different part intermarried
Answer:
dont know
Step-by-step explanation:
A garden has 8 rows of plants. Each row has 12 tomato plants and 3 bean plants.
How many more tomato plants than bean plants are in the garden?
The term "jet stream" is often used by weather forecasters to describe
A: The cloud-like condensation trails that are sometimes seen behind jet aircraft.
B: Warm pacific winds associated with volcanic activity in the western pacific which carry heat to the north pole
C: Solar winds that bring high energy particles to the upper atmosphere, providing heat which sets off convection cycles disturbing weather in the tropical latitudes
D: The west to east winds that circle the globe, often just below the poles in latitude and just beneath the stratosphere in elevation
Answer:
daddy chill what does the man say?
Step-by-step explanation:
???
Round 985, 932 to the nearest thousand.
Answer:
900
Step-by-step explanation:
Help me
Solve 5n = 35.
Answer:
n=7
Step-by-step explanation:
7 times 5 equals 35.
Answer:
n=7
Step-by-step explanation:
Give:5n = 35
To solve the n. we need to divide both side by 5.
5n/5=35/5
n=7
Find the value of the probability of the standard normal variable Z corresponding to this area for problems 1-3.
Answer:
Explained below.
Step-by-step explanation:
The complete question is:
Find the value of the probability of the standard normal variable Z corresponding to this area for problems 1-3.
1. P(Z < 1.62)
2. P(Z > -1.57)
3. P(-1.41 < Z < 0.63)
Solution:
Use Excel to solve the problems.
(1)
P(Z < 1.62) =NORM.S.DIST(1.62,TRUE)
= 0.9474
(2)
P(Z > -1.57) = P (Z < 1.57)
=NORM.S.DIST(1.57,TRUE)
= 0.9418
(3)
P(-1.41 < Z < 0.63) = P (Z < 0.63) - P (Z < -1.41)
=NORM.S.DIST(0.63,TRUE) - NORM.S.DIST(-1.41,TRUE)
= 0.7357 - 0.0793
= 0.6564
If ray earns $120 for 15 hours of work, how much will he earn for 20 hours of work at the same rate
Find his rate:
120 / 15 = $8 per hour
Multiply the rate by hours:
$8 x 20 hours = $160
He will earn $160
−2x−(−5−4x)=−5(2x−7)
Answer:
x = 2.5
Step-by-step explanation:
- 2x - ( - 5 - 4x ) = - 5 ( 2x - 7 )
- 2x + 5 + 4x = - 10x + 35
- 2x + 5 + 4x = - 10x + 35
- 2x + 4x + 10x = 35 - 5
12x = 30
x = [tex]\frac{5}{2}[/tex] = 2.5
Check the answer:
L.H.S. = - 2(2.5) - [ - 5 - 4(2.5) ] = 10
R.H.S. = - 5 [ 2(2.5) - 7 ] = 10
A person collected $2,100 on a loan of $1,800 they made 7 years ago. If the person charged simple interest, what was the rate of interest?
Answer:
28.571
Step-by-step explanation:
Students in a sixth-grade class are raising money for an end-of-year camping trip. So far, they have raised $240. This is 2/5 (two-fifths) of the cost of the trip. How much does the trip cost?
Answer:$300
Step-by-step explanation:
120 is 1/5 of the raised money, therefore if you miltiple 120 by 5 you should get your answer.
Answer:
.
Step-by-step explanation:
