Answer:
area of rectangle =length ×width
(x+1) xx²+xhope it helps
Answer:
x² + x is the answer of your question
hope it is helpful to you
For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding. In a random sample of 63 professional actors, it was found that 38 were extroverts. A button hyperlink to the SALT program that reads: Use SALT. (a) Let p represent the proportion of all actors who are extroverts. Find a point estimate for p. (Round your answer to four decimal places.) Incorrect: Your answer is incorrect. (b) Find a 95% confidence interval for p. (Round your answers to two decimal places.) lower limit Incorrect: Your answer is incorrect. upper limit Incorrect: Your answer is incorrect.
Answer:
a) 0.6032
b)
Lower limit: 0.48
Upper limit: 0.72
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].
Question a:
In a random sample of 63 professional actors, it was found that 38 were extroverts.
We use this to find the sample proportion, which is the point estimate for p. So
[tex]\pi = \frac{38}{63} = 0.6032[/tex]
Question b:
Sample of 63 means that [tex]n = 63[/tex]
95% confidence level
So [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].
The lower limit of this interval is:
[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6032 - 1.96\sqrt{\frac{0.6032*0.3968}{63}} = 0.4824[/tex]
The upper limit of this interval is:
[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6032 + 1.96\sqrt{\frac{0.6032*0.3968}{63}} = 0.724[/tex]
Rounding to two decimal places:
Lower limit: 0.48
Upper limit: 0.72
If 5 men complete a task in 3 days, how long
would it take 2 men, working at the same rate,
to complete the same task?
Answer
Answer:
7.5 days
Step-by-step explanation:
Total mandays needed
5 men complete a task in 3 days
5 * 3 = 15 mandays
2 men, working at the same rate,
15 / 2 = 7.5 days
A student sells ice cream bars. Her weekly salary is given by , where x is the number of ice cream bars sold. Her employer determines the amount withheld for taxes using the function , where x is her weekly salary. Write the amount withheld as a function of the number of ice cream bars sold. Hint: Use composition.
9514 1404 393
Answer:
W(x) = 0.06x +30
Step-by-step explanation:
The withholding on the student's salary is ...
W(S(x)) = 0.10(0.60x +300) = 0.06x +30
Where x is the number of ice cream bars sold, the withholding is ...
W(x) = 0.06x +30
8 cm
15 cm
20 cm
What is the surface area of the cuboid?
Answer:
the answer is probably 15cm
Step-by-step explanation:
The lowest temperature on record in the United States was -80 Degrees at prospect creek camp Alaska. The highest recorded temperature decreases as 134 degrees in Death Valley California
Select all that apply
A. The difference in the recorded temperature is less than 134 degrees.
B. The difference in the record is 134 degrees.
C. The difference in the recorded temperatures is greater than 134°
D. The temperature for death Valley California was above 0°
E. The temperature for Prospect Creek camp was above 0°
Which of the following represents the situation?
Answer:
C
Step-by-step explanation:
4 souffles+10 meringue pies=38 eggs
and 6 meringue pies+8 souffles=34 eggs
Pls help. Don't answer if you don't know.
Answer:
The answer is C.
Step-by-step explanation:
It is 180÷5=36. n is basically just symbolizes 180, and b is the number of candles in each box.
What is the total Fatima paid?
Given vector u=3i + 5j and v=6i - 2j, find 3u + 2v and the dot product of u and v.
9514 1404 393
Answer:
3u+2v = 21i +11ju·v = 8Step-by-step explanation:
The desired sum is ...
3u +2v = 3(3i +5j) +2(6i -2j) = (3·3 +2·6)i +(3·5+2(-2))j = 21i +11j
__
The dot product is the sum of products of corresponding component values.
u·v = (3)(6) +(5)(-2) = 18 -10 = 8
‼️‼️‼️‼️‼️‼️
PLEASE HELP
FIRST ANSWER GETS BRAINLIEST
NO LINK NO LINKS OR BANNED
Answer: I beleive its B, C, and E
Step-by-step explanation:
HOpe this helps
Solve this equation and describe the steps you took.
4( x + 7) = 38
Answer:
x = 2.5
Step-by-step explanation:
4( x + 7) = 38
step 1 distribute the 4 to the x and 7
4 * x = 4x
4 * 7 = 28
we now have 4x + 28 = 38
step 2 subtract 28 from each side
28 - 28 cancels out
38 - 28 = 10
we now have 4x = 10
step 3 divide each side by 4
4x / 4 = x
10 / 4 = 2.5
we're left with x = 2.5
Step-by-step explanation:
4x+28=38
4x=38-28
4x=10
X=10/4
x=2.5
In the triangle shown, determine Angle A to the nearest degree.
A
12 m
10 m
R
M
Answer:
12.............................Answer:
12 m
Step-by-step explanation:
this is anwer
factor -1(x^(2)-3x-4) and pls show steps
Answer:(-x-1)(x-4)
Step-by-step explanation:
[tex]-1(x^{2} -3x-4)[/tex]
factor the equation (multiples of 4 are 1 and 4 and 2 and 2) 4-1=1 so the factor you want to use are 1 and 4
-1(x +1)(x-4) -- -4+1=3
distribute the -1 into the first factor
(-x-1)(x-4)
Answer:
[tex]-x^{2}+3x+4[/tex]
Step by step explanation:
1) [tex]-1(x^{2}-3x-4)[/tex]
Any expression multiplied by 1 remains the same.
2) [tex]-(x^{2}-3x-4)[/tex]
When there is a ' - ' in front of an expression in parenthesis, change the sign of each term in the expression.
3) [tex]-x^{2}+3x+4[/tex]
The histogram represents the time it takes employees to get to work each morning.
Which statement correctly describes the data?
The data is skewed left because the time it takes employees to get to work tails off to the left.
The data is skewed left because the time it takes employees to get to work tails off to the right.
The data is skewed right because the time it takes employees to get to work tails off to the right.
The data is skewed right because the time it takes employees to get to work tails off to the left.
Answer:
The answer is C. The data is skewed right because the time it takes employees to get to work tails off to the right.
Step-by-step explanation
Answer:
c
Step-by-step explanation:
it make more sense
There are 12 kids in this class including you. If every person shakes hands with every other person, how many handshakes will there be all together?
Answer: 132 handshakes in total
Step-by-step explanation: 11x12 because one of them will be the one shaking hands with everyone else so he would have gotten 11 hands shaked so everyone would have gotten their hands shaked 11 times
Question 2
A forest ranger in an observation tower sees a bear 15 miles to the north. The ranger also knows
there are campers located 19 miles due west of her post.
To the nearest mile, how far are the campers from the bear?
O 24 miles
O 5 miles
21 miles
O 34 miles
Answer:
24 miles
Step-by-step explanation:
Please find attached a diagram explaining the question
this would be solved using Pythagoras theorem
The Pythagoras theorem : a² + b² = c²
where a = length
b = base
c = hypotenuse
15² + 19²
225 + 361
586
the square root of 586 = 24 miles
The graph shown matches which quadratic equation?
A
yox. 1
yox-1)?
D
T(z)= sin^2(z/4), {-3 ≤ z ≤ 8}
Answer:
T´(z)=n^2s/4*i
Step-by-step explanation:
T(z)=d/dz(sin^2*z/4)
T´(z)=d/dz(sn^2zi/4)
T´(z)=d/dz(sn^2z/4*i)
T´(z)i*d/dz(sn^2z/4)
T´(z)=n^2s/4*i
Simplify
IK ANSWERS AREN’T CLEAR LOOK AT PHOTO!! HELP ASAP I WILL MARK BRAINIEST!
Answer:
a^2 b^7
Step-by-step explanation:
I believe this is right
In rectangle PQRS, SP = 4, and PR = 5
What is PQ?
Answer:
In rectangle PQRS, the value of PQ = 24, if the value of SP = 7 and the value of PR = 25.
Step-by-step explanation:
Match the shape with the correct formula for finding the volume.
1. Cone
2. Cylinder
3. Triangular Prism
4. Rectangular Prism
5. Pyramid
━━━━━━━━━━━━━━━━━━━━━━
Formula for finding the volume of cone - ⅓πr2h
Formula for finding the volume of cylinder - πr2h
Formula for finding the volume of Triangular Prism - Bh
Formula for finding the volume of Rectangular Prism - lwh
Formula for finding the volume of Pyramid - ⅓Bh
━━━━━━━━━━━━━━━━━━━━━━
Answer:
Pyramid: 1/3 B x H Triangular: B x H Cone: 1/3 pi r^2 x H Rectangular Prism: L x W x H Cylinder: pi r^2 x H
Step-by-step explanation:
Given △ABC with vertices A(2, 3), B(4, 8), and C(7, 1).
Find the perimeter of △ABC.
none of the above
Answer:
Step-by-step explanation: explanation to the question: so you take the numbers 2,3 4,8 and 7,1 and we calculate the answer it would be look above for the answer.
p.s sometimes the number doesn't show up on the answer part so I'm gonna say it here to it is .
Answer:
2√(29)+√(58)
Step-by-step explanation:
You can use distance formula
Please please help!!!!
Answer:
4.75
Step-by-step explanation:
The area of the shape above is units2. Type only a number answer in the blank with no commas.
Note: Use your knowledge of the area of rectangles and triangles to help you find the total area of the figure.
Answer:
How much is cubic units is in the lengh width and height in all add them all and put the number you did not give theese numbers to me.Please send them as soon as possible I will be on for 15 min
Step-by-step explanation:
The area of the shape above is units2. Type only a number answer in the blank with no commas.
Note: Use your knowledge of the area of rectangles and triangles to help you find the total area of the figure.
5 Miles 17 Deer 5 Mlies Predict the number of deer in a 25 square mile section of the mountains based on the sampling from the figure O A 27 Os 42 O c es OD 170 feet
Answer:
Step-by-step explanation:
Its 27
Evaluate g2 - h2 when g = -1 and h = 3
Answer:
-8
Step-by-step explanation:
Evaluate g² - h² when g = -1 and h = 3
g = - 1 ; h =3
g² - h²
(-1)² - 3²
1 - 9
= - 8
Need help. have been stuck for a while. If someone could help me with a few answers that would be great and very much appreciated!
Answer:
Hello again, my friend :3 here's your answer! sorry i was late, i was on my lunch break, haha.
2(cos 20º + i sin 20º)
2(cos 140º + i sin 140º)
2(cos 260º + i sin 260º)
Write an equation for each situation. Then solve.
a. Karyl has x tickets for rides at the carnival. Her sister has twice as
many tickets. Together they have 18 tickets. How many tickets does
Karyl have?
Answer:
Step-by-step explanation:
Step 1: let's divide the total tickets into 2 respectively ie 18÷2=9
Step2: nw let's divede the 9 into 2 respectively and that give us 4.5. since her sister has as twice if many tickets therefore karyl has 4.5 tickets.
math question!
pls help
question is in the pic
(either answer it or can you tell how to find the answer or both pls & thxxu)
Step-by-step explanation:
use the a method called tan which to find the answer u will divide 4 divide by 2 and then you find the tan of 2 to get the answer then you find tan inverse with calculator yo get the correct answer
I end the answer fast pls
Answer:
Hey ... answer is Origin.. that is 2 nd option