Question

Perform the following operations and express your answers using the appropriate number of significant figures. a. 60.0 kg + 22.1 kg + 0.52 kg b. 8.75 ms – 750.0 us

с. (1.50 х 10^4 m/s) х 120.0 s \text { d. } \pi\left(0.22 \mathrm{~m}^{2}+220 \mathrm{~cm}^{2}\right) \text { e. } \sin 65.0^{\circ} \times \cos 25.05^{\circ}

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