\angle a\: and\: \angle b\: are\: complementary.\: \angle b\: and\: \angle c\: are\: supplementary.\: ∠ a a n d ∠ b a r e c o m p l e m e n t a r y . ∠ b a n d ∠ c a r e s u p p l e m e n t a r y .

\angle a\: =\: 52^\circ\: \: find\: \angle c

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

Urgent? will give brainliest to the first correct answer what is the area of the figure?

The half-life of a certain material is 0.002 second. approximately how much of a 14-gram sample will be left after 0.004 second? a. 12 grams b. 3.5 grams c. 0.06 gram d. 7 grams