Answer:
(78, 80)
Step-by-step explanation:
Given a normal distribution :
Mean = 79 seconds
Standard deviation = 0.5 seconds
Using the empirical rule :
95% of her finishing times :
According to the empirical rule, 95% represents 2 standard deviations from the mean that is ± 2 standard deviations from the mean score or value.
Hence ;
The interval will be defined as ;
Mean ± 2(standard deviation)
79 ± 2(0.5)
79 ± 1
(79 - 1) ; (79 + 1)
78 ; 80
Answer:
B. 5, 7, 8
Step-by-step explanation:
When you take the sum of the squares of 5 and 7 they are greater than the square of 8.
5² + 7² = 8² Simplify
25 + 49 = 64 Add
74 > 64
If this answer is correct, please make me Brainliest!
Hey there!
The 3 games cost $14.99 each, so multiply to find the cost of the three combined without the tax (the subtotal).
14.99 × 3 = 44.97
To find the amount of tax she will have to pay, we must find 7% of 44.97, the price without the tax added to it (the subtotal).
100% = 1.0
7% = 0.07
Multiply 44.97 by 0.07 for the amount of tax.
44.97 × 0.07 = 3.1479
Add the tax to the cost of the games without tax (subtotal).
44.97 + 3.1479 = 48.1179
Round the amount to the nearest cent. The thousandths place is 7, so it gets rounded up.
The total she has to pay for the games is $48.12.
Hope this helps!
Answer:
24,000 cm^3
Step-by-step explanation:
Volume is LxWxH
20x30x40=24,000cm^3
Answer:
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Step-by-step explanation:
