Marco started the following two-column proof. Which of the following should be the reason for the final step? Statements Reasons 1. △ABC is equilateral 1. Given 2. ∠ADC and ∠BDC are right angles 2. Given 3. AC¯¯¯¯¯¯¯¯≅BC¯¯¯¯¯¯¯¯ 3. Definition of an equilateral triangle 4. CD¯¯¯¯¯¯¯¯≅CD¯¯¯¯¯¯¯¯ 4. Reflexive Property 5. ∠ADC≅∠BDC 5. All right angles are congruent 6. △ADC≅△BDC 6. Hypotenuse Leg congruence criteria 7. ∠ACD≅∠BCD 7. (1 point) Reflexive Property All right angles are congruent Alternate Interior Angles are congruent CPCTC

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours

1.) 21

2.) 0.453

3.) 1.5

4.) 48

5.) $ 22

step-by-step explanation: