Help with number 4!!

Answers

Answer 1

Answer: Range is the area of variation between the highest and lowest values, basically the highest value - the lowest value a low range would indicate that the variation is minimal thus that the measurement tool is accurate.

Good luck, hope this helps.

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The half life for Carbon-14 is 5730 years. If a plant had 30 units of Carbon-14 in it when it was cut, find an equation that models the decay of Carbon-14 in this plant.

Answers

$y = 30( (1)/(2)) ^(x)/(5730)$

Where x = the amount of time that has passed in years.

The surface area of a game cube is 384 square millimeters. how long is each edge of the cube?

Answers

$a\ \rightarrow\ the\ long\ of\ each\ edge\ of\ the\ cube\nthe\ surface\ area\ of\ a\ game\ cube=384\ mm^2\n\n6a^2=384\ /:6\n\na^2=64\ \ \ \Rightarrow\ \ \ a=8\n\nAns.\ the\ long\ of\ each\ edge\ of\ the\ cube\ is\ 8\ mm.$

$6a^2=384\n a^2=64\n a=8 \ mm$

16 more than 8 of a certain number is 24 more than 6 times that number. What is the number?

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Instead of looking at the hole number of: 24 You should just break it down into two parts. The first part is 20 and the second is 4. The rest is easy, multiply 4x6 which gives you 24, and 20x6 which gives you 120. And then just add them, 120+24=144

Janet designed a star on her computer, and each side had a length of 40 mm. She reduced the figure by a scale factor of 0.65.What were the side lengths of the reduced star?

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40 times 0.65 which gives you an answer of 26.

Write 4 equivalent expressions to 5n + 15n

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The equations can be anything as long if it is equal to 20n.
So here are some:
6n+14n
7n+13n
8n+12n
9n+11n
10n+10n
As you can see, they all equal to 20n
~JZ
Hope I helped

19n+n
16n+4n
13n+7n
30n-10n

javier bought 48 sport cards at a yard sale. of the cards 3/8 were baseball cards. hoe many cards were baseball cards?

Answers

3/8·48=3·6=18

Answer: B

18 cards were baseball cards.

since 6 can go into 48 8 times, you do 6 x3 which is 18

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