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3 years ago

8

A high school of 350 students offers biology and chemistry courses. 213 students are enrolled in biology while 155 students are

studying chemistry. 78 students are studying both subjects. how many students are not studying either subject?

1 answer:

NNADVOKAT [17]3 years ago

4 0

350 - 213 - 155 + 78 = 60 students not in either

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Step-by-step explanation:

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$A=\frac{1}{2} \times s_1\times s_2\times sin \theta$

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$s_1 = PR= 23\text{ mm}$ , $s_2=QR=39\text{ mm}$ and $\theta = 163^{\circ}$ ,

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