I dont understand both question?

Mathematics

1 answer:

diamong [38]3 years ago

7 0

1- The interest rate is 7.5/year so 7.5/.75 year(9 months) at 500$ which would produce a profit of 28.13$ so a total of 528.13

2-7.5/year for 1.5 years(18 months) at 500$ so total interest is 56.25$ so the total is 566.25$

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For questions 2 and 3 plot the points in the coordinate plane. Then determine whether AB and CD are congruent. Explain your answ

max2010maxim [7]

Answer:

2. congruent

3. congruent

Step-by-step explanation:

Segments will be congruent if their lengths are the same. Their lengths will be the same if the sum of squares of the x- and y-differences of their endpoint coordinates are the same.

2. B-A = (-4-(-4), 8-1) = (0, 7)

D-C = (5-(-2), -5-(-5)) = (7, 0)

The total of 0² and 7² is the same as the total of 7² and 0², so these segments are congruent. (They are both of length 7.)

3. B-A = (2-4, 6-1) = (-2, 5)

D-C = (-4-(-2), -3-2) = (-2, -5)

The sum of (-2)² and 5² is the same as the sum of (-2)² and (-5)², so these segments are congruent. (They both are of length √29.)

6 0

4 years ago

A computer is normally $550 but is discounted to $385. What percent of the original price does Mark pay?

Lemur [1.5K]

Hi!

Use The Percentage Formula To Solve:

385 ÷ 550 * 100 = 70

Mark pays 70% of the original price.

3 0