Mathematics: Need understanding this math.each will have vertices a, b and c with a point d lying on the line segment ab. 1. if ac = 15, cb = 20, angle acb = 90◦ and angle adc = 90◦ , what is cd? 2. if ac = 15, cb = 20, ab = 25 and cd = 12, what is ad? what is db?

Need understanding this math.each will have vertices

Ответ:

olsona75

13.03.2022

Mathematics

1. C is the right angle so AB is the hypotenuse and AD is the altitude to the hypotenuse.

The hypotenuse is

$AB=c= \sqrt{15^2 + 20^2} = \sqrt{5^2(3^2+4^2)} = 25$

The area calculations must match. Let h=CD

$\frac 1 2 a b = \frac 1 2 c h$

$h = \dfrac{ab}{c} = (15)(20)/25 = 12$

2. This is the same triangle as above. We seek x=AD and DB=25-x

12^2 + x^2 = 15^2

$x = \sqrt{3^2(5^2-4^2)} = 9$

AD=9 and DB=25-9=16

AD=9, DB=16

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Ответ:

shay5878

03.01.2021

Mathematics

The answer is $5,000.73.
Explanation: If one Canadian dollar bill is $1.00 and a Trinidad’s $1.00 is $2.73 then that means if you wanna convert it you have to double the amount including the €73 and you have 2,500 you need to double the amount then add the remaining €73.

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Need understanding this math.each will have vertices a, b and c with a point d lying on the line segment ab. 1. if ac = 15, cb = 20, angle acb = 90◦ and angle adc = 90◦ , what is cd? 2. if ac = 15, cb = 20, ab = 25 and cd = 12, what is ad? what is db?

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