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QveST [7]
2 years ago
15

2. Determine each value of x that solves the following exponential equations given below.

Mathematics
1 answer:
pashok25 [27]2 years ago
8 0
A)5x = 122+3
5x = 125
x = 125/5
x = 25
B) 3x = 81-3
3x = 78
x = 78/3
x = 26
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the crowd at a sporting event is estimated to be 2,500 people. the exact attendance is 2,486 people. what is the percentage erro
Verdich [7]

Answer:

0.56%

Step-by-step explanation:

Percentage error

=  \frac{2500 - 2486}{2500}  \times 100 \\  \\  =  \frac{1400}{2500}  \\  \\  = 0.56\%

5 0
3 years ago
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If you are picking a number between one and 20 what is the probability that you will pick a number greater than 14 or less than
Korvikt [17]

Answer:

5 because that my favorites number no cap

8 0
3 years ago
Paul owes Paula 35 cents and has a pocket full of 55-cent coins, 10-cent coins, and 25-cent coins that he can use to pay her. Wh
ella [17]
15 because the highest amount of coins he can use are 25 and the lowest is 10 so 25-10 is 15
5 0
3 years ago
Suppose management could improve the process by reducing the mean time required for an oil change (but keeping the standard devi
Alja [10]

This question is incomplete, the complete question is;

The owners of Spiffy Lube want to offer their customers a 10-minute guarantee on their standard oil change service. If the oil change takes longer than 10 minutes to complete, the customers is given a coupon for a free oil change at the next visit. Based on past history, the owners believe that the timer required to complete an oil change has a normal distribution with a mean of 8.6 minutes and a standard deviation of 1.2 minutes.

Suppose management could improve the process by reducing the mean time required for an oil change (but keeping the standard deviation the same). How much change in the mean service time would be required to allow for a 10-minute guarantee that gives a coupon to no more than 1 out of every 25 customers on average

Answer:

Required change in the mean service time is 7.8988

Step-by-step explanation:

Given the data in the question;

How much change in the mean service time would be required to allow for a 10-minute guarantee that gives a coupon to no more than 1 out of every 25 customers on average

let mean = μ

p( x > 10 ) ≤ (1/25)

p( x > 10 ) ≤ 0.4

p( x-μ / 1.2  > 10-μ / 1.2 ) ≤ 0.4

(10-μ / 1.2 ) ≤ 0.4

(10-μ / 1.2 ) ≥ q_{norm} ( 0.96 )

(10-μ / 1.2 ≥ 1.751

10-μ  = ≥ 1.751 × 1.2

10-μ  ≤ 2.1012

μ ≤ 10 - 2.1012

μ ≤ 7.8988

Therefore, required change in the mean service time is 7.8988

8 0
3 years ago
Can someone determine the values of AC AND CB please
Eduardwww [97]

Answer:

AC 29

CB 15

Step-by-step explanation:

5x-6+2x+1=44 add like terms

7x-5=44

7x= 49

x= 7

plug back in

5(7)-6 = 29

2(7)+1 = 15

4 0
2 years ago
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