What is the approximate radius of the disc if the area is 78.5 square inches?
Answers
78.5 = 3.14 * r^2
r^2 = 78.5 / 3.14 = 25
r = radius = 5 answer
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Answers
Answer:
(1.95 +1.65)c -0.75 = 2.49
Step-by-step explanation:
The cost of the fruit is the cost per pound (c) multiplied by the number of pounds, 1.95 +1.65. After $0.75 is deducted, the total cost is $2.49. The equation that says this is ...
(1.95 +1.65)c -0.75 = 2.49
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3.6c = 3.24 . . . . add 0.75, simplify
c = 0.9 . . . . . . divide by the coefficient of c
The cost of the fruit is $0.90 per pound.
Answers
Answer:
A = 145cm
Step-by-step explanation:
A+B+C = 445cm
b = 1/2c
a = b+45 = 1/2c + 45
445 = c + (0.5c) + (0.5c + 45)
445 = 2c + 45
445 - 45 = 2c
400/2 = c
c = 200cm
a = 1/2c + 45 = 1/2*200 + 45 = 100 + 45 = 145cm
Answers
7 is the factor of 14 and 7 has 14 as its multiple.
What is Factor?
A factor is a number that completely divides another number. To put it another way, if adding two whole numbers results in a product, then the numbers we are adding are factors of the product because the product is divisible by them.
Given:
We have the Number 14.
So, the factors of 14 = 1, 2, 7, 14.
and, 7 can act as factor of 14.
also, 7 has multiple 14.
Hence, 7 is the required number.
Learn more about factors here:
#SPJ2
Answer:
7 is both a factor and a multiple
Answers
1. You have the following quadratic equation, which is given in the problem above:
2y^2+6y-8=0
2. So, to solve it, you can use the quadratic formula, which is:
y=(-b±√(b²-4ac))/2a
a=2
b=6
c=-8
3. When you susbtitute these values into the formula, you obtain:
y1=-4
y2=1
(b) What is the probability that a participant chosen at random was not satisfied with their service?
Answers
Answer:
(a) The probability is 31.44%
(b) The probability is 9.345%
Step-by-step explanation:
The probability for part (a) is calculated as a multiplication of:
65.5% * 48% = 31.44%
Where 65.5% is the percentage of participants that had not switched service in the past 3 years and 48% are the percentage of those 65.5% that were very satisfy. So, the 31.44% of the participants had not switched service in the past 3 years and were very satisfied with their service.
Then, for part b, we have 2 cases:
- Case 1: A person that had not had switched service in the past 3 years and was not satisfied with their service
- Case 2:A person that had not switch in the past 3 years and was not satisfied with their service.
So, the probability is calculated as a sum of these two probabilities.
Therefore, the probability for case 1 is calculated as:
34.5% * 10% = 3.45%
Where 34.5% is the percentage of participants that had switched service in the past 3 years and 10% are the percentage of those 34.5% that were not satisfy.
At the same way, the probability for case 2 is:
65.5% * 9% = 5.895%
Finally, the probability that a participant chosen at random was not satisfied with their service is the sum of 3.45% and 5.895%. That is:
3.45% + 5.895% = 9.345%
Answers
Answer:
I think 1 is the right answer
Step-by-step explanation: