Answer:
A) 0.0088
B) 0.2997
C) 5
Step-by-step explanation:
Given: Mean: Ч = 79 minutes
Standard deviation : б = 8 minutes
The formula for z score:
z= x-ц/σ
a) For x=60 minutes
z= 60-79/8 = -2.375
The p-value = P(z< -2.375) = 0.0087745 ≈ 0.0088
b) For x= 75 minutes
z= 75-79/8 = -0.5
The p-value = P(60 < x < 75) = P (-2.375 < z < -0.5)
= P(-0.5)-P(-2.375)= 0.3085 -0.0088 =0.2997
c) For x=90 minutes
z= 90-79/8 = 1.375
The p-value = P (z > 1.375)= 1-P(z < 1.375)
= 1-0.9154342 = 0.0845658
If the number of students in the class=60.
Then, the number of students will be unable to complete the exam in the alotted time = 0.0845658 x 60 = 5.073948 ≈ 5
finding an angle measure given extended triangles
answer pls ? & dnt play around .. i really need this done :/
Answer:
x = 180 - 32 - 43 - 72 = 33°
Rectangle DEFG was dilated
to form D'E'F'G. Point G(-2,0)
was dilated to G'(-8,0).
Answer:
A. (-2,1)
Step-by-step explanation:
YAL HELP ME PLSS jxbxjdjd
Answer:
(d) is true
Explanation:
Given
[tex]Brown = 8[/tex]
[tex]Purple = 7[/tex]
Required
Which of the options is true
A) P(Brown) = P(Not Brown)
P(Brown) is calculated as:
[tex]P(Brown)=\frac{Brown}{Brown + Purple}[/tex]
[tex]P(Brown)=\frac{8}{8+7}[/tex]
[tex]P(Brown)=\frac{8}{15}[/tex]
P(Not Brown) is calculated as:
[tex]P(Not\ Brown) = 1 - P(Brown)[/tex] --- Complement rule
[tex]P(Not\ Brown) = 1 - \frac{8}{15}[/tex]
Solve
[tex]P(Not\ Brown) = \frac{7}{15}[/tex]
Both are not equal.
Hence, (a) is not true
(b) P(Brown) < P(Not Brown)
In (a) above
[tex]P(Brown)=\frac{8}{15}[/tex]
[tex]P(Not\ Brown) = \frac{7}{15}[/tex]
By comparison;
[tex]P(Brown) > P(Not\ Brown)[/tex]
Because:
[tex]8/15 > 7/15[/tex]
Hence, (b) is not true
(c) P(Not Brown) > P(Brown)
This is the same as (b)
i.e. both conditions represent the same.
Hence, (c) is incorrect
(d) P(Brown) > P(Not Brown)
In (b), we established that
[tex]P(Brown) > P(Not\ Brown)[/tex]
Because:
[tex]P(Brown)=\frac{8}{15}[/tex]
[tex]P(Not\ Brown) = \frac{7}{15}[/tex]
[tex]8/15 > 7/15[/tex]
Hence, (d) is true
2. Your friend has 10 minutes to catch his bus that is 1.5 miles away. He can run at
a speed of 10 miles per hour. If he runs the entire way, how long will it take him to
reach his bus? Will he get to his bus on time?
1 Add file
Answer:
it will take him 10 mins to reach the bus and will be on time
Step-by-step explanation:
1. 10miles/6=1.66...
GIVING BRAINLIEST TO FIRST COMPLETE ANSWER
View the work below from a student last year. What was their mistake? Be detailed in their response.
-3(x + 4) = 2x - 5
-3x + 4 = 2x - 5
4 = 5x - 5
9 = 5x
1.8 = x
Answer:
x = -1.4
Step-by-step explanation:
-3(x + 4) = 2x - 5
-3x + (-3*4) = 2x - 5
The mistake was in the above equation where -3 should be multiplied with 4.
-3x -12 = 2x -5
5 -12 = 2x+3x
-7 = 5x
x = -7/5 = - 1.4
12. If n(A) = 14, n(B) = 15, and n(
AB) = 6, then n(AUB) is
Step-by-step explanation:
The above answer is right no doubt
Could u please help with this question
Circle the expression that has the smallest value when x = 4
5 – x 1/2 x x + 1 x - 4
9514 1404 393
Answer:
(d) x-4
Step-by-step explanation:
If we assume your answer choices are ...
(a) 5 -x = 5 -4 = 1
(b) 1/2x = 1/2(4) = 2
(c) x +1 = 4 +1 = 5
(d) x -4 = 4 -4 = 0
Then the last choice (d) x -4 has the smallest value at x=4.
please someone help me
Answer:
I think the answer is D
Please help ASAP! Which answer choice is it???
Answer:
Choice A
Step-by-step explanation:
You can rule out choices B and D because they do not have 6 sides which your prism does. You can forget about C being correct because it doesn't have 4 long sides.
Answer:
A is the best answer
Step-by-step explanation:
it has four sides
The radius of a circle is 3 cm. Find its area in terms of \piπ.
Answer:
The area would be 28.27
1. Stephanie wants to build a fence around her garden to keep the rabbits out
The length of her garden is 5 feet and the width is 7 feet. How much fencing
will she need?
Answer:
24 feet
Step-by-step explanation:
1) sum the dimensions
7+5 = 12
2) multiply the value by 2
12 x 2 = 24 feet
y = 3x - 1 Let x = 6. The ordered pair is (6,_).
Answer:
Step-by-step explanation:
y = 2x - 1
x = 6
y = 3*6 - 1
y = 18 - 1
y = 17
(6,17)
I need help with this. I will mark brainliest.
Answer:
y = 2x + 0; y = 2x
Step-by-step explanation:
y = mx +b is the equation.
b is the y intercept which is shown as 0. We do rise over run to find x. We can see that every time it rises by 2, it runs by 1 so its 2.
translate into an equation
the sum of 9 times a number and 7 equals 5x
use variable w for the unknown number
Answer:
9w + 7 = 5x
hope this answer helps you.....
s
Daily Distance Larry Biked (Km)
3 5 12 2 1
8 5 8 6 3
11 8 6 4 10
10 9 6 6 6
5 2 1 2 3
What was the most common Distance Larry Bike
Answer:
rrhithyyyyyyyytru to hb uh-I don't know what to say to
Step-by-step explanation:
they are u guys are u guys are doing well and your family are u guys are doing well and your family are doing well ☺️☺️☺️ I'm not going home now and u want me out and u doing well and staying home with me to school and get a few more kimbot I don't know if I
Freddy read 50% of his book. Express this percent as a fraction in simplest form and as a decimal.
Fraction:
Decimal:
Answer:
1/2
.50
Step-by-step explanation:
Jeremiah's new running sneakers cost $95. Their
state also has a 6.35% sales tax. How much will
Jeremiah have to pay for the sneakers, including
sales tax?
Answer:
$101.03
Step-by-step explanation:
two ways to solve:
95 x 1.0635=101.03
or
95 x .0635=6.03 sales tax paid
sales price 95 + sales tax 6.03 = total paid $101.03
Mr. Wilcox would really like his laptimes to be consistently between 1.75 and 1.85 minutes.
What proportion of his laps were in this range?
Answer:
Use normalcdf ( 1.75, 1.85, 1.84, 0.07 )
Doc and Marty should have laptimes between 1.75 and 1.85 approximately 45.75% of the time.
Step-by-step explanation:
Need help ASAP! Thanks
Answer:
A = 1, B = 1
Step-by-step explanation:
From the question
(2x+1)/(x²+x) = A/x + B/(x+1)
(2x+1)/(x²+x) = [A(x+1)+(Bx)]/(x²+x)
Equation the numerator
2x+1 ≡ A(x+1) +Bx
2x+1 ≡ Ax+A+Bx
From the above,
A = 1.
And,
2x = Ax+Bx................ Equation 1
A+B = 2
Substitute the value of A into Equation 1
1+B = 2
B = 2-1
B = 1
9. Simplity (4a + 6) - 1 (4 + b).
c 2a +
2a + 이
s+
Aa
a+-
D 2a-b
Step-by-step explanation:
gcfucycudcuduficfiuxr
Simplify the expression:
4(b-6)+19
Please help, thank you :)
Answer:
4b - 5
is the answer
need help: find 3x when x=2
a farmer has 80 yards of land east and 100 yards west
Answer: 8000?
Step-by-step explanation:
If your asking the area of his land, 800 yards
Total of 180 I guess? What are you trying to askkk?
what is the distance between the points (-4,7) and (6,-3)
Answer:
100 units
Step-by-step explanation:
((6+4)^2+(-3-7)^2)^1/2
100+100^1/2
10000^1/2
100 units
Florida Fish and Wildlife is having problems with the growing population of Pythons in the Everglades. The graph below shows the annual growth of the python population from beginning 2000 to 2010. What is the domain of the graph that is shown?
Answer:
x≥0
Step-by-step explanation:
the domain is anything above 0
The domain of the graph is [0, 10] or 0 ≤ x ≤ 10 when the annual growth of the python population from the beginning of 2000 to 2010.
What is a function?It is defined as a special type of relationship and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
We have:
Florida Fish and Wildlife is having problems with the growing population of Pythons in the Everglades.
As we can see in the graph the annual growth of the python population from the beginning of 2000 to 2010 is continuously increasing between 0 to 10,
Mathematically,
x ∈ [0, 10] or
0 ≤ x ≤ 10
Thus, the domain of the graph is [0, 10] or 0 ≤ x ≤ 10 when the annual growth of the python population from the beginning of 2000 to 2010.
Learn more about the function here:
brainly.com/question/5245372
You have recently been employed in a medium size company and deployed in the accounts department.
Your head of section has given you the following extract from the cashbook for the month of February 2021:
Sh. Sh.
Receipts during the month 2,938,000 Balance brought forward (1.2.2021) 1,522,000
Balance carried forward (28.2.2021) 1,108,000 Payments during the month 2,524,000
4,046,000 4,046,000
The head of section further informs you that all receipts are banked intact and all payments are made by cheque. On investigation, you discover the following:
1. Bank charges and commissions amounting to Sh. 272,000 entered on the bank statement had not been entered in the cashbook.
2. Cheques drawn amounting to Sh. 534,000 had not been presented to the bank for payment.
3. Cheques received totaling Sh. 1,524,000 had been entered in the cashbook and paid into the bank, but had not been credited by the bank until March 2021.
4. A cheque for Sh. 44,000 had been entered as a receipt in the cashbook instead of a payment.
5. A cheque for Sh. 50,000 had been debited by the bank by mistake.
6. A cheque received for Sh. 160,000 had been returned unpaid. No adjustment had been made in the cashbook.
7. All dividends receivable are credited direct to the bank account. During the month of February 2021. Dividends totaling Sh. 124,000 were credited by the bank and no entries had been made in the cashbook.
8. A cheque drawn for Sh. 12,000 had been incorrectly entered in the cash book as Sh. 132,000.
9. The balance brought forward should have been Sh. 1,422,000.
10. The bank statement as at 28 February 2021 showed on overdraft of Sh. 2,324,000.
Required:
(i) The adjusted cashbook as at 28 February 2021 (4 marks)
(ii) Bank reconciliation statement as at 28 February 2021. (6 marks)
Answer:
I AINT DOING THAT FOR 5 POINTS GIMME MORE
Step-by-step explanation:
Plz help me well mark brainliest If Correct
A television game show has 10 doors, of which the contestant must pick 2. Behind 2 of the doors are expensive cars, and behind the other 8 doors are consolation prizes. The contestant gets to keep the items behind the 2 doors she selects. Determine the probability that the contestant wins no cars. The probability is (Type an integer or a simplified fraction.)
The function y=e−3x is vertically stretched by a factor of 4, reflected across the y-axis, and then shifted up 5 units, find the resulting function.
y=1/4e^3x-5
After a whole year this hasn't been answered
The resulting function of y=e^(−3x), when vertically stretched by a factor of 4, reflected across the y-axis, and then shifted up 5 units is y=[4e^(−3x)] + 5.
How does the transformation of a function happen?The transformation of a function may involve any change.
Usually, these can be shifted horizontally (by transforming inputs) or vertically (by transforming output), stretched (multiplying outputs or inputs) etc.
If the original function is y = f(x), assuming the horizontal axis is the input axis and the vertical is for outputs, then:
Horizontal shift (also called phase shift):
Left shift by c units, y=f(x+c) (same output, but c units earlier)Right shift by c units, y=f(x-c)(same output, but c units late)Vertical shift
Up by d units: Down by d units: y = f(x) - dStretching:
Vertical stretch by a factor k: [tex]y = k \times f(x)[/tex]Horizontal stretch by a factor k: [tex]y = f(\dfrac{x}{k})[/tex]Given the function [tex]y=e^{-3x}[/tex] is vertically stretched by a factor of 4. Therefore, the function will be written as,
[tex]y = 4 \times e^{-3x}[/tex]
Now, the function is shifted up by 5 units, therefore, the function will become,
[tex]y = (4e^{-3x})+5[/tex]
Hence, the resulting function of y=e^(−3x) , when vertically stretched by a factor of 4, reflected across the y-axis, and then shifted up 5 units is y=[4e^(−3x)] + 5.
Learn more about Transforming functions:
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