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2 years ago

In 1997 there were 11,012 licensed drivers over age 55 involved in fatal crashes. There

Mathematics

1 answer:

san4es73 [151]2 years ago

8 0

Answer:

Step-by-step explanation:

No because there could simply be more older drivers on the road.

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Whats 21/40 in equivalent decimals

GREYUIT [131]

The equivalent decimals for 21/40 is 0.525

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2 years ago

Consider the set a = {a, b, {a, b}}, where a and b are distinct elements. the number of elements in ℘(a) is _____

Juli2301 [7.4K]

$A=\{a,b,\{a,b\}\}\\|A|=3\\\\|\wp(A)|=2^3=8$

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3 years ago

Which expression is equivalent?

Assoli18 [71]

Answer: last one

Step-by-step explanation:

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2 years ago

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kirill [66]

Answer:

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Step-by-step explanation:

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2 years ago

After each charging, a battery is able to hold only 97% of the charge from the previous charging. The battery was used for 18 ho

Cerrena [4.2K]

Answer:

The total nuber of hours that the battery can be used over its lifetime is 600.

Step-by-step explanation:

We use an infinite geometric series to solve this question.

The sum of all values of an infinite geometric series is given by the following equation:

$S = \frac{a_{1}}{1 - r}$

In which $a_{1}$ is the first term and r is the common ratio.

After each charging, a battery is able to hold only 97% of the charge from the previous charging.

This means that $r = 0.97$

The battery was used for 18 hours on its first charge before it had to be recharged.

This means that $a_{1} = 18$

What is the total number of hours the battery can be used over its lifetime?

$S = \frac{18}{1 - 0.97} = 600$

The total nuber of hours that the battery can be used over its lifetime is 600.

7 0

3 years ago