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3 years ago

Please help! Will mark the brainliest!

Mathematics

1 answer:

NikAS [45]3 years ago

7 0

Interval notation uses parenthesis ( or ) for points that are not included in the function (open circle) and brackets [ or ] for points that are included in the function (filled in circle).

Remember that the domain for a function is the range of x-values in a function.

Interval notation includes the numbers at the each end of a continuous function. For function F, the leftmost x-value is 0. The rightmost x-value is 8. Both points at x = 0 and x = 8 are included in the function (filled in circles), so you would use the brackets. The entire function is continuous between those two points.

That means the interval notation for the domain of F is:
[0, 8]

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Answer: [0, 8]

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What are the possible steps involved in solving the equation shown? Select three options.

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Answer:

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3 years ago

On a test of 25 items, 18 were answered correctly. What percent were answered correctly?

gayaneshka [121]

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72%

Step-by-step explanation:

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3 years ago

An element with mass 490 grams decays by 28.6% per minute. How much of the element is remaining after 16 minutes, to the nearest

agasfer [191]

Answer:

2.2 grams

Step-by-step explanation:

We can use the compound decay formula shown below to solve this:

$F=P(1-r)^t$

Where

F is the final amount (what we want to find)

P is the present amount (490 grams)

r is the rate of decay, in decimal (28.6% = 28.6/100 = 0.286)

t is the time in minutes (16)

Substituting, we get:

$F=P(1-r)^t\\F=490(1-0.286)^{16}\\F=490(0.714)^{16}\\F=2.2355$

So, after 16 minutes, 2.2355 grams will be remaining.

Rounded to nearest tenth of a gram (1 decimal place) = 2.2 grams remaining

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4 years ago

Dwayne has $5.00 kendra has 1/10 as much money as dwayne juan has 1/10 as much money as kendra tom has 10 times as much money as

Paha777 [63]

To answer this question you need to interpret the ratio of the money correctly. We only know Dwayne money, so it's better to solve the ratio which was related to Dwayne. In this case, it was Kendra or Tom.

Dwayne money = $5
Kendra money= 1/10 Dwayne money= 1/10 x $5= $0.5
Juan money= 1/10 Kendra money = 1/10 x $0.5= $0.05
Tom money = 10 x Dwayne money = 10 x $5 = $50
Ruth money = 10 x Tom money = 10 x $50= $500

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3 years ago

Best Answer gets Brainliest!!! PLZ help!

AVprozaik [17]

Answer:

Its not proportional

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers