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4 years ago

7

Just give me answer plz

2 answers:

ziro4ka [17]4 years ago

5 0

Answer:

Step-by-step explanation:

Finger [1]3 years ago

5 0

Answer:

A

Step-by-step explanation:

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Which of these groups of relative frequencies would be best represented by a pie chart?

SVETLANKA909090 [29]

All of these would be perfectly fine represented by a pie chart except A, which doesn't add to 100%.

The question seems to be getting at the idea that a pie chart might be better when the slices are all visually different sizes. I don't really think that's right; a pie chart for D say, where the two slices are about the same, gives the correct impression of the relative frequencies, which are about the same.

Answer they're looking for: C

7 0

3 years ago

Rewrite these expressions using words: 3/4x(2 2/5-5/6)

myrzilka [38]

Answer:

Step by atep explaination :

$\frac{3}{4}$ means three₋fourth

$2\frac{2}{5}$ means two and two₋fifths

$\frac{5}{6}$ means five₋sixth

An algebraic expression in words can be written as

A numbers three₋fourth times the subtractions of five₋sixths from two and two₋fifths

5 0

4 years ago

The half-life of Radium-226 is 1590 years. If a sample contains 400 mg, how many mg will remain after 2000 years?

Assoli18 [71]

Answer:

167.27 mg.

Step-by-step explanation:

We have been given that the half-life of Radium-226 is 1590 years and a sample contains 400 mg.

We will use half life formula to solve our given problem.

$N(t)=N_0*(\frac{1}{2})^{\frac{t}{t/2}$ , where N(t)= Final amount after t years, $N_0$ = Original amount, t/2= half life in years.

Now let us substitute our given values in half-life formula.

$N(2000)=400*(\frac{1}{2})^{\frac{2000}{1590}$

$N(2000)=400*(0.5)^{1.2578616352201258}$

$N(2000)=400*0.4181633028874878239$

$N(2000)=167.26532115499512956\approx 167.27$

Therefore, the remaining amount of Radium-226 after 2000 years will be 167.27 mg.

3 0

3 years ago

2×2×3×5 and 2×2×5×5 LCM=_____________=_____

cupoosta [38]

60, 100 = 300

hope this helps

8 0

3 years ago

Read 2 more answers

Help what do I put in the table ignore the other question

givi [52]

Answer:

4.5, 4, 3.5, 3, 2.5, 2

Step-by-step explanation:

8 0

4 years ago