Help me please Let triangle ABC be an equilateral triangle. The point D is the midpoint of AB. Prove that AACD ABCD.
19. Since triangle ABC is equilateral, what do we know about the
sides and angles? (1 point)
20. Since D is the midpoint of AB, what do we know about m(AD)
and DB)? (1 point)
21. Do we have enough information to conclude if the two triangles are congruent? If so, which property
describes their congruence? If not, what other information is needed? (1 pt)

An assembly consists of two mechanical components. suppose that the probabilities that the first and second components meet specifications are 0.87 and 0.84. assume that the components are independent. determine the probability mass function of the number of components in the assembly that meet specifications. x

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below.the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.

Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)