Answer:
C. π(3in)2(12in) − 9(four over threeπ(1.5in)3)Step-by-step explanation:
Volume of water is the difference of volume of vase at 12 in height and the total volume of marbles.
Volume of cylinder up to water level:
Vs = πr²h = π(6/2)²(12) = π×(3 in)²×(12 in)Volume of marbles:
Vm = 9(4/3πr³) = 9×(4/3×π(3/2)³) = 9×(4/3×π×(1.5 in)³)Volume of water:
Vw = Vs - Vm = π×(3 in)²×(12 in) - 9×(4/3×π×(1.5 in)³)Correct choice is C
Answer:
C. π(3in)2(12in) − 9(four over threeπ(1.5in)3)
Step-by-step explanation:
Volume of water is the difference of volume of vase at 12 in height and the total volume of marbles.
Volume of cylinder up to water level:
Vs = πr²h = π(6/2)²(12) = π×(3 in)²×(12 in)
Volume of marbles:
Vm = 9(4/3πr³) = 9×(4/3×π(3/2)³) = 9×(4/3×π×(1.5 in)³)
Volume of water:
Vw = Vs - Vm = π×(3 in)²×(12 in) - 9×(4/3×π×(1.5 in)³)
Correct choice is C
Bobby, Jessy, Carl, and Andrea are working a shift at the concession stand during their school football game. The football game has four quarters, and each person works one of the quarters.
Using the arrangements formula, it is found that there are 24 ways to arrange the people as such one works each quarter.
What is the arrangements formula?The number of possible arrangements of n elements is given by the factorial of n, that is:
[tex]A_n = n![/tex]
In this problem, 4 people will be arranged, hence:
[tex]A_4 = 4! = 24[/tex]
Hence, they can be arranged in 24 ways.
More can be learned about the arrangements formula at https://brainly.com/question/24648661
six friends share 4 apples equally. How much apples does each friend friend get?
Which line shows the first error in the solution?
Answer:
The first error is in line 1.
Step-by-step explanation:
The equation that represents the statement is:
[tex]4-\frac{x}{3}=11[/tex]
it is four (4) less than a number (x) divided by three (3) is 11.
Therefore, we need to start from this equation, so the first error is in line 1.
I hope it helps you!
4-3 Interpreting Rate of Change and y-Intercept in a Real - World Context - Part 1
Independent Practice
Help
solve 2x+4=10
Brainliest
❤️ The answer is attached
achievements.
Answer:
x=3
Step-by-step explanation:
2x+4=10
subtracting both side by 4.
2x+4-4=10-4
2x=6
x=6/2=3
The product of a number and 10 is 36
Answer:
The number is 26
Step-by-step explanation:
number + 10 = 36, then you'd subtract ten from both sides and get :
number = 26
10 POINTS PLS ANSWER
Answer:
x=15
Step-by-step explanation:
x+165degrees=180degrees
x=180-165
x=15
Find an ordered pair that satisfies the function y = 2x – 12.
Answer:
give me the points i really need them for a test
Step-by-step explanation:
pleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleasepleaseplease
Answer:
Answers below
Step-by-step explanation:
(0,-12)
(1,-10)
(2,-8)
(3,-6)
(4,-4)
(5,-2)
(6,0)
etc..
Use the following scenario for the next 4 questions: Based on the results of an annual customer satisfaction survey of State Farm policyholders, State Farm claims that policyholders have a customer satisfaction rate of greater than 90%. To check the accuracy of this claim, a random sample of 60 State Farm policyholders was asked to rate whether they were satisfied with the quality of customer service. Fifteen percent of these policyholders said they were not satisfied with the quality of service. Can we infer that the satisfaction rate is less than the claim with a level of significance of 5%
Answer:
Since the pvalue of 0.0985 > 0.05, we cannot infer that the satisfaction rate is less than the claim with a level of significance of 5%
Step-by-step explanation:
The null hypothesis is:
[tex]H_{0} = 0.9[/tex]
Because tate Farm claims that policyholders have a customer satisfaction rate of greater than 90%.
The alternate hypotesis is:
[tex]H_{1} < 0.9[/tex]
Because of the question: Can we infer that the satisfaction rate is less than the claim with a level of significance of 5%.
The test statistic is:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.
State Farm claims that policyholders have a customer satisfaction rate of greater than 90%.
This means that [tex]\mu = 0.9, \sigma = \sqrt{0.9*0.1}[/tex]
To check the accuracy of this claim, a random sample of 60 State Farm policyholders was asked to rate whether they were satisfied with the quality of customer service.
This means that [tex]n = 60[/tex]
Fifteen percent of these policyholders said they were not satisfied with the quality of service.
So 100 - 15 = 85% were satisfied, which means that [tex]p = 0.85[/tex]
Test statistic:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
[tex]z = \frac{0.85 - 0.9}{\frac{\sqrt{0.9*0.1}}{\sqrt{60}}}[/tex]
[tex]z = -1.29[/tex]
[tex]z = -1.29[/tex] has a pvalue of 0.0985.
Since the pvalue of 0.0985 > 0.05, we cannot infer that the satisfaction rate is less than the claim with a level of significance of 5%
How to make 28 tens and ones
Answer:
2 tens and 8 ones
Step-by-step explanation:
10 + 10 = 20
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 = 8
20 + 8 = 28
Answer:
Step-by-step explanation:
2 tens and 8 ones
20=10/2
10x2=20
8/1=8
8x1=8
20+8=28
Eight more than the product of a number and 4 is equal to 9
Answer:
1/4
Step-by-step explanation:
8 + 4n = 9
4n = 1
n = 1/4
"Write an equation for a slope of -7 and a y-intercept of -15"
Can someone plss help mee !?
2 3/5 x 1 2/5=
Pls do explain it. Thanks in advance
Answer:
2×3\5×2\5=60
Step-by-step explanation:
first of all do multiply then cut both 5 and at last divide the Answer comes 60
Complete the statement using <, >, or =.
20% of 30 ___30% of 40
Answer:
20% of 30 < 30% of 40
Step-by-step explanation:
Find 20% of 30
20/100 = x/30
Cross multiply
20 × 30 = 100 × x
600 = 100x
Divide both sides by 100
6 = x
Find 30% of 40
30/100 = x/40
Cross multiply
30 × 40 = 100 × x
1200 = 100x
Divide both sides by 100
12 = x
Compare the two answers:
6 and 12
6 < 12
6. What is the volume of the rectangular prism below?
1 point
9.3 cm
4 cm
4 cm
Your answer
Answer:
Step-by-step explanation:
I dont know it can you help me
MULTIPLE CHOICE PLS ANSWER
Answer:
Option.B
Step-by-step explanation:
Its because if you add these two angles you get a supplementary angle or 180°
Using this we can form an equation to find the value of x.
(Hope this answer helps :))
(And is this question from Khan Academy?)
Round 8
to the nearest whole number.
Round 8 5/9 to the nearest whole number
Answer:
8 to the nearest whole is 10
8 is over halfway so its 10.
Step-by-step explanation:
8 5/9 rounded to nearest whole is 9
5/9 id about 1/2 and 1/2 is about a whole so its 9
1. Is a Square a rectangle?(Always, Never, Sometimes. Are all the answers you can say for these)
2. is a trapezoid a parallelogram?
3. does Quadrilaterals
have for congruent sides?
4. is a parallelogram a rectangle?
Answer:
1. sometimes
2. always
3. always
4. always
Step-by-step explanation:
The waiting times between a subway departure schedule and the arrival of a passenger are uniformly distributed between 0 and 5 minutes. Find the probability that a randomly selected passenger has a waiting time greater than 4.25 minutes. Find the probability that a randomly selected passenger has a waiting time greater than 4.25 minutes.
Answer:
0.15 = 15% probability that a randomly selected passenger has a waiting time greater than 4.25 minutes.
Step-by-step explanation:
A distribution is called uniform if each outcome has the same probability of happening.
The uniform distributon has two bounds, a and b, and the probability of finding a value higher than x is given by:
[tex]P(X > x) = \frac{b - x}{b - a}[/tex]
Uniformly distributed between 0 and 5 minutes.
This means that [tex]a = 0, b = 5[/tex]
Find the probability that a randomly selected passenger has a waiting time greater than 4.25 minutes.
[tex]P(X > 4.25) = \frac{5 - 4.25}{5 - 0} = 0.15[/tex]
0.15 = 15% probability that a randomly selected passenger has a waiting time greater than 4.25 minutes.
9. The Smiths' have decided to put a paved walkway of uniform width around their
swimming pool. The pool is a rectangular pool that measures 12 feet by 20 feet. The area of
the walkway will be 68 square feet. Find the width of the walkway.
Answer:
Pretty sure the width would be one foot.
AB ___ DE Choose the relationship symbol that makes the statement true. > < =
Answer:
the answer above this one is wrong
respectfully
Step-by-step explanation:
The answer is " < "
because angle F is greater than angle C, which means line ED is longer than AB
please OMG I DONT UNDERSTAND
Answer:
ANSWER
Step-by-step explanation:
A. -4 1/6, 6 2/3
B. -3 5/6, 6 1/6
C. -2 5/6, 1/6
D. -3 1/6, 2/3
Answer: I think it might be (A)
Step-by-step explanation:
I need help with this question please, if anyone would be kind enough to give me the correct answer, in return I would gladly rate a 5 star and give brainliest (:
A trapezoid has a base of 4yds a base of 8 yd and a height of 2 yd. What is the area
Answer:
12yd²
Step-by-step explanation:
Answer:N
4 x 8 x2 = 64
Step-by-step explanation:
YNYNYNYN
The three most commonly used graphs in research are the histogram, the __________, and the cumulative frequency graph (ogive)
Answer:
The four most common are probably line graphs, bar graphs and histograms, pie charts, and Cartesian graphs.
Use the Pythagorean theorem to find the length of the leg in the triangle shown below 12 15
Answer:
9 = x (assuming 15 is the hypotenuse)
Step-by-step explanation:
15^2 = 12^2 + x^2
225 = 144 + x^2
subtract 144 from both sides
81 = x^2
square root both sides
9 = x
Please Answer QUICKLY
What is the value of x in the equation Negative StartFraction 2 over 9 EndFraction x = two-fifths?
Negative 1 and four-fifths
Negative StartFraction 5 over 9 EndFraction
StartFraction 5 over 9 EndFraction
1 and four-fifths
c.StartFraction 5 over 9 EndFraction
D. is not the answer and four-fifths i think the best answer
A 16 foot ladder is leaning against a wall with the base 4 feet from the wall. How high does the ladder hit the wall?
Answer:
15.49
Step-by-step explanation:
The pythagorean theorem
4^2 + B^2 = 16^2
16 + B^2 = 256
16 + 240 = 265
Sqrt240 = 15.49
Answer:
[tex]x = 15.49[/tex]
Step-by-step explanation:
To solve this problem is necessary to use the pythagorean theorem:
According to this diagram, the length of the ladder would be the hypotenuse and the distance between the base and the wall would be one of the legs of the triangle, to find the other leg, use the pythagorean theorem:
[tex]x = \sqrt{ {16}^{2} - {4}^{2} } \\ x = \sqrt{240} \\ x = 15.49[/tex]
The ladder hits the wall at 15:49 feet.
What is the value of x?
Answer:
9
Step-by-step explanation:
7x - 3 = 60
7x = 60 + 3
7x = 63
x = 63 ÷ 7
x = 9