3 years ago

Geometry question help me

Mathematics

1 answer:

bekas [8.4K]3 years ago

7 0

Answer:

225

Explanation:

∠ADC is a right angle [definition of altitude]. ∠ADC = 4x - 10, and since all right angles are 90° >> 4x - 10=90 >> 4x -10+10= 90+10 >> 4x=100 >> 4x/4=100/4 >> x=25.

BD+DC=BC [Between-ness of points] >> 4x + 5x -3=BC >> we know that x=25, so by substitute property >> 4*25+5*25 -3=BC >> 100+125 -3=BC >> 222=BC

You might be interested in

Derivative of y=(3x+5)^3

UkoKoshka [18]

$\\ \sf\longmapsto \dfrac{dy}{dt}$

$\\ \sf\longmapsto \dfrac{d}{dt}(3x+5)^3$

$\\ \sf\longmapsto \{3(3x+5)\}^2$

$\\ \sf\longmapsto (9x+15)^2$

$\\ \sf\longmapsto 9x^2+2(9x)(15)+(15)^2$

$\\ \sf\longmapsto 81x^2+270x+225$

6 0

2 years ago

Read 2 more answers

One problem with the widespread use of email is that you receive too much of it.

Kobotan [32]

The answer for your question is True because it says that "Widespread" by that you already know widespread means that it goes every where and you would get it more then one so for that your answer is true:)

Hope this helps:)

6 0

3 years ago

A road 4 inches long on a map is 80 miles long in real life. A river is 2 ½ inches long on the map and is 50 miles long in real

jonny [76]

Not Proportional. Sorry if it’s wrong

7 0

3 years ago

What is the answer to 32.6 - n = 10.2

Alex_Xolod [135]

Answer: 22.4

Step-by-step explanation:

32.6 - 10.2 = 22.4