2 years ago

What is the name of this unstable isotope from number 10?

Mathematics

1 answer:

marishachu [46]2 years ago

5 0

Answer:

oxygen-13

Step-by-step explanation:

Consists of 8 protons and electrons and 5 neutrons

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If the ratio of red roses is 4 to 6 and there are a total of 50 roses, how many of them are yellow?

raketka [301]

17 because 4 x 1.5 = 6, 50 / 1.5 = 33.33

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3 years ago

The airplane in the scale drawing has a wingspan of a feet and a tail span of b feet. If the tailspin in the drawing is 2 inches

xeze [42]

Correct answer is: actual wingspan of airplane is 6 inches.

Solution:-

We are given that wingspan is 'a' feet and tail span is 'b' feet in a scale drawing.

And we are also given that tail span is 2 inches that is b=2 inches and $\frac{a}{b}=3$

Let us plugin the b value in above equation.

$\frac{a}{2}=3$

Multiplying with 2 on both sides.

a=3X2=6 inches.

Hence actual wingspan of airplane is 6 inches.

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3 years ago

What is the area of this trapezoid? Enter your answer in the box.

Llana [10]

Answer:

The answer is 90

Step-by-step explanation:

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3 years ago

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MrRissso [65]

Answer:

2 radical 13

Step-by-step explanation:

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2 years ago

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There are 20 children in the cast of a class play, and 8 of the children are boys. of the boys, 4 have a speaking part in the pl

kotykmax [81]

it all looks confusing when we try to juggle with all those numbers in the head. The problem can be solved systematically by constructing a contingency table.
role/gender B G total
speaking...... 4 4 8
 silent............ 4 8 12
total............. 8 12 20
Probability of a child having a speaking part is therefore
(4+4)/20=8/20=2/5
a. 2/5

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3 years ago

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