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4 years ago

The line plot shows the ages of participants in two group activities at a science center.

Mathematics

2 answers:

ohaa [14]4 years ago

7 0

Answer:

A)The median age of participants in group 2 is older than the median age of participants for group 1.

Step-by-step explanation:

A median is the middle number in a data set which is written in the format of least to greatest. When there are two middle numbers, the median is the mean of these two numbers.

Hence, in the diagram it is clearly shown that the median of the 2nd group is greater than the 1st group.

So, option A is correct.

Anni [7]4 years ago

5 0

I believe the answer is a

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NARA [144]

Answer:

(B)c = StartFraction (3) sine (45 degrees) Over sine (40 degrees) EndFraction

$c=\dfrac{3 * \sin 45}{sin 40}$

Step-by-step explanation:

In Triangle ABC is shown.

$\angle A B C=$ 95 degrees

$\angle B C A =$ 45 degrees.

|AB|=c

|BC|=3.0 cm

$\angle A+\angle B+\angle C=180^\circ\\\angle A+95+45=180\\\angle A=180-140=40^\circ$

Using the Law of Sines

$\dfrac{a}{\sin A}=\dfrac{b}{\sin B}=\dfrac{c}{\sin C}$

$\dfrac{3}{\sin 40}=\dfrac{c}{\sin 45}\\\\$Cross multiply\\c*\sin 40 =3 * \sin 45\\\\c=\dfrac{3 * \sin 45}{sin 40}$

The correct option is B.

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