gromada17 gromada17

13-12-2020
Mathematics

contestada

please help! geometry question!

please help geometry question class=

Respuesta :

surjithayer10 surjithayer10

13-12-2020

Answer:

Step-by-step explanation:

∠B=∠C (isosceles triangle)

so ⊥ AD bisects BC.

or BD=CD

2x-15=x+7

2x-x=7+15

x=22

AD=4x-6=22×4-6=82

DC=22+7=29

[tex]AC=\sqrt{(82^2+29^2)} =\sqrt{6724+841} =\sqrt{7565} \approx 86.977 \approx 86.98[/tex]

Answer Link

Otras preguntas

What are the origins of prevailing ideas about natural, ideal, and deviant bodies in sports and in society?

In what respect does an atom of magnesium differ from a magnesium ion (Mg^{2+})? (A)The ion has a more stable electronic arrangement than the atom. (B)The pos

find the difference: 7 7/8 - 3 1/4

what is perpendicular to y= 3x -9 and passes through the point (3,1)

what is the answer to this question -√(12)+5√(75)

Put brackets in the expression below so that it's value is 45.024. 1.6 + 3.8 * 2.4 *4.2 (*= times )

In a sale, normal prices are reduced by 12% The sale price of a digital camera is £132.88 Work out the normal price of the digital camera (3marks)

what are two human uses for mosses?

what percentage of 1457 is 898?

What are enzymes also known as? What do enzymes do to biological reactions? What do we call the special shape on an enzyme molecule? What are enzymes made of? W