6(s-9) simplify the expression
Answer:
6s−54
Step-by-step explanation:
Use the distributive property to multiply 6 by s−9. i hope this helps
Which of these is an example of a random sample?
A.
Customers buying a new cell phone are surveyed about cell phone plans.
B.
A phone plan company surveys people on the beach to see how well they are receiving service, and uses this information in future advertising.
C.
Every twentieth caller to an independent radio station receives tickets to a concert.
D.
A phone survey is conducted using twenty names randomly taken from the phone book.
(1 point) Dylan wants to determine a 99 percent confidence interval for the true proportion p of high school students in the area who attend their home basketball games. Out of n randomly selected students he finds that that exactly half attend their home basketball games. About how large would n have to be to get a margin of error less than 0.01 for p
Answer:
n would have to be at least 16577
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].
The margin of error is:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
Out of n randomly selected students he finds that that exactly half attend their home basketball games.
This means that [tex]\pi = 0.5[/tex]
99% confidence level
So [tex]\alpha = 0.01[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.01}{2} = 0.995[/tex], so [tex]Z = 2.575[/tex].
About how large would n have to be to get a margin of error less than 0.01 for p
A sample size of n is needed. n is found when M = 0.01. So
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]0.01 = 2.575\sqrt{\frac{0.5*0.5}{n}}[/tex]
[tex]0.01\sqrt{n} = 2.575*0.5[/tex]
[tex]\sqrt{n} = \frac{2.575*0.5}{0.01}[/tex]
[tex](\sqrt{n})^2 = (\frac{2.575*0.5}{0.01})^2[/tex]
[tex]n = 16576.6[/tex]
Rounding up
n would have to be at least 16577
When the error margin is smaller than 0.01, the value of n will be 16576.6.
What is a confidence interval?The mean of your estimate plus and minus the range of that estimate constitutes a confidence interval.
Given that;
Confidence interval = 99 %
Randomly selected students,n
margin of error,M0.01
The margin of error for the given information is;
[tex]\rm M = z \frac{\sigma(1-\sigma)}{n} \\\\\ 0.01 = 2.575 \frac{0.5(0.5)}{n} \\\\ 0.01 \sqrt n = 2.575 \times 0.5 \\\\ \sqrt n = \frac{2.575 \times 0.5}{0.01} \\\\ n = 16576.6[/tex]
Hence, the value of n for which the margin of error is less than 0.01 will be 16576.6.
To learn more about the confidence interval refer;
https://brainly.com/question/24131141
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Evaluate if a=3, x=2, y=5, and z=4
axz\div(2y)axz÷(2y)
12
24
2.4
60
Answer:
Just calculate
3×2×4 ÷ (2×5)
24÷10
=2.4
What is the area of this figure?
Enter your answer in the box.
Answer:
24
Step-by-step explanation:
Area of the 1st upright rectangle: 3x4=12
Area of 2nd rectangle: rectangle: 6x1=6
area of triangle: ((1st leg)x(2nd leg))/2=(4x3)/2=6
1st leg=4
2nd leg=6-3=3
12+6+6
24=area
Hope this helps :)
A television news program asks its viewers to call in to give their opinions on an upcoming ballot question. What type of sampling method does this represent?
Answer:
This is an example of self selecting sampling
Step-by-step explanation:
This is an example of self selecting sampling because the news program is asking viewed to give their opinions. The viewers themselves have a choice of participating in the sample therefore is self selecting.
Brenda’s school is selling tickets to a spring musical. On the first day of ticket sales the school sold 6 adult tickets and 9 child tickets for a total of $108. The school took in $111 on the second day by selling 9 adult tickets and 5 child tickets. What is the price of each type of ticket?
Answer:
42 dollars
Step-by-step explanation:
An igloo has a circular floor with a diameter of 4 yards. What is the floor's area? Use 3.14 for π
Step-by-step explanation:
the answer is A=12.57
A=πr^2
3.14 • 2^2 = 12.57
-2(3+m)=
Solve the question
Use synthetic division to divide x4 – x3 + x2 – 8x + 3 by x – 2
Answer: x4+3bxy−x3+x2−8x−2
Step-by-step explanation:
x4−x3+x2−8x+3byx−2
=x4+−x3+x2+−8x+3bxy+−2
HOPE THIS HELPS
Answer:
x^4-x^3+x^2-5x-2
Step-by-step explanation:
2.
It took you 30 minutes (min) to walk
from home to school with the
distance of 500 meters. What is the
average speed?
Answer:
0.27778m/s woulb be my average speed
How to add fraction 3/7+ 3/9=
[tex] \large \sf \pink{Answer: }[/tex]
[tex] \large \purple{ \boxed{ \frac{16}{21}}}[/tex]
[tex] \large \sf \pink{Explanation:}[/tex]
[tex] \sf \large{ \frac{3}{7} + \frac{3}{9}}[/tex]
[tex] \sf \large{ \frac{3}{7} + \frac{1 \times 3}{3 \times 3}}[/tex]
[tex] \sf \large{ \frac{3}{7} + \frac{1}{3}} [/tex]
[tex] \sf \large\frac{3 \times 3}{21} + \frac{1 \times 7}{21}[/tex]
[tex] \sf \large{ \frac{9}{21} + \frac{7}{21}}[/tex]
[tex] \sf \large{ \frac{(9 + 7)}{21}}[/tex]
[tex] \sf \large \purple{ = \frac{16}{21}}[/tex]
multplying binomals anyone know this?
Answer:
Yes I know this material.
(x+2)(x+1) x^2+x+2x+2 So the answer is x^2+3x+2 Hope this helps(y+1)2_ (x + 2)2 > 1?
Which point justifies the shaded area by satisfying (+2)2 ..
24
(12, 6)
O (-2, 6)
O (8,-6)
O (-1, -2)
N
Answer:
-2,6
Step-by-step explanation:
Ed2021
point (-2, 6) justifies the shaded area by satisfying (+2)2.
What is a straight line graph?The graph follows a straight line equation shows a straight line graph.equation of a straight line is y=mx+cy represents vertical line y-axis.x represents the horizontal line x-axis. m is the slope of the lineslope(m)=tan∅=y axis/x axis.
c represents y-intercepts (it is the point at which the line cuts on the y-axis)Straight line graphs show a linear relationship between the x and y values.
solving the equation:-
[tex]\frac{(y+1)^{2} }{6}[/tex] - [tex]\frac{(x+2)^{2} }{24}[/tex] ≥ 1
⇒[tex]\frac{6(y+1)^{2} +(x+2)^{2} }{24}[/tex] ≥ 1
Learn more about Straight line graph here:-https://brainly.com/question/14323743
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Gina is wrapping gifts for her daughter's birthday how many square inches of wrapping paper does Gina use to wrap a box 3 inches 8 inches tall 14 inches
Answer:
336 inches
Step-by-step explanation:
if a rectangle is 6"wide and 9" long, what will be the new lenth if the width increases by 3"
HELP ASAP. What is the area of this trapezoid and the formula. Please explain your reason.
Answer:
base 1 + base 2 times height times half (basically dividing by 2) is the formula of a trapezoid. 25 + 35 = 60 x 21 = 1260 divided by 2 is 630
The art club at a community college is selling burgers at lunchtime as a fundraiser. The club spends $8 for condiments and supplies. The cost of the meat and bun for each burger is $0.65. Express the total cost, C, as a function of the number of burgersmade, x.
Answer:
C(x)=0.65x+8
Step-by-step explanation:
According to the information given, you can say that the total cost would be equal to the result of multiplying the cost of the meat and bun per burger for the number of burgers made plus the amount spent on condiments and supplies, which can be expressed as:
C(x)=0.65x+8, where:
C(x) is the total cost
x is the number of burgers made
The polynomial 10x3 + 35x2 − 4x − 14 is factored by grouping.
10x3 + 35x2 − 4x − 14
5x2(____) − 2(____)
What is the common factor that is missing from both sets of parentheses?
Answer:
The answer is "[tex]2x+7[/tex]".
Step-by-step explanation:
In this question, it can measure this using the following step if you'd like to find the missing element in both types of parentheses:
[tex]\to 10x^3 + 35x^2 - 4x - 14 \\\\\to (5x^2-2) (2x+7)\\\\\to 5x^2 (2x + 7) - 2 (2x + 7)\\[/tex]
So, the correct answer would be (2x + 7).
To the nearest whole number, what is the area of the regular hexagon?
<3 help me out.
there are 6 triangles in the hexagon, so the hexagon area is 6*16*➗3 *=96 *➗3
HELP ASAP PLS ANSWER THE QUESTION IN THE PIC I GIV BRAINLEST AND LOTS OF POINTS TO CORRECT ANSWER
Math 143 flooring lab
Answer:
eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Step-by-step explanation:
There 12 sports drinks, 7 cans of orange juice, and 5
sodas in a cooler. If a drink is selected at random from
the cooler, what are the chances that it is not a orange
juice?
A. 1/2
B. 17/24
C. 7/24
D. 19/24
Triangle KLM is isosceles with sides ML=240mm and MK=74mm calculate the size of angle MKL
Answer:
∠MKL = 81.13°
Step-by-step explanation:
240 mm has to be the equal legs because two 74 mm legs wouldn't work with a 240 mm base leg.
Drop a line from m to be perpendicular to LK.
This divides LK into two 37 mm segments.
cos ∠MKL = 37/240
cos ∠MKL = 0.1542
∠MKL = 81.13°
find the missing side length
Answer:
c. 10
Step-by-step explanation:
Pythagoras theorem is used since it's a right angle triangle
26²-24²=a²
676-576=a²
√100=√a²
a=10
‼️HELP‼️ Write an equation of the line in slope-intercept form
PLEASE HELP!! THIS DUE IN 10 MINUTES
Answer:
C
Step-by-step explanation:
Area of a parallelogram:
BH x 1/2
In this case 7 and 6 are your base and the height is your half.
Answer:
I believe the answer is A: A = 6 * 7
Step-by-step explanation:
Ok, I may be wrong, but this is how I see the answer:
The formula for how to find the area of a parallelogram is A = b * h.
Base = 6 m
Height = 7 m
A = 6 * 7
(8+7x)9= simplify using distributive property
Answer:
72 + 63xStep-by-step explanation:
(8+7x) x 9 =
8 x 9 + 7x x 9 -
72 + 63x
Hope that helps!
Answer:
[tex]\huge\boxed{\boxed{\sf{72+63x}}}[/tex]
Step-by-step explanation:
Hello.
In order to simplify this expression, we need to
multiply 8+7x times 9
8×9=72
7x×9=63x
72+63x
And we're done!
I hope it helps & have an outstanding day!
~ST2710 :)
Listed below are the commissions earned ($000) last year by a sample of 15 sales representatives at Furniture Patch Inc.
$4.1 $5.9 $7.5 $10.8 $12.2 $13.6 $14.3 $16.6 $17.2
$17.4 $17.8 $22.3 $35.9 $43.2 $79.5
1. Determine the mean, median, and the standard deviation.
2. Determine the coefficient of skewness using Pearson
Step-by-step explanation:
Solution is attached in pen paper form
Patrick needs to walk from his cabin to the fire pit. He can walk directly from his cabin to the fire pit or walk to the dock then to the fire pit. Which path is the shorter route? Justify your response
Answer:
he can walk directily to the fire pit
Step-by-step explanation: