enzo291205 enzo291205

19-04-2021
Mathematics

contestada

ABC est un triangle rectangle en B.
On donne : AB = 7:BC = a et AC = a +5.
Calcule a

Respuesta :

ghanami ghanami

19-04-2021

Answer:

Step-by-step explanation:

salut :

en utilisant le theorem de Pythagore on obtient :

AC²= AB² + BC²

(a+5)² = 7²+a²

a²+10a+25 = 49+a²

10a+25 =49

10a =24

donc : a = 24/10 = 12/5 = 2.4 unit

Answer Link

Otras preguntas

Is this right or wrong

In (triangle) ABC, m In(triangle) DEF, m Which statement about the triangles is true? a.(triangle) ABC is not similar to(triangle) DEF b.Not enough information

My aunt, ____ I love very much, worries about her cooking. Which correctly completes the sentence? Whomever Who Whoever Whom

During production of a drug, all work area surfaces must be disinfected using sterilized disinfectants. Which of the following statements about disinfectants ar

The vacuum inside the thermos bottle shown in Figure 16-1 stops which type of thermal energy transfer to keep the liquid hot

I need help for this work

Which of the following types of pollution is not linked to coal-burning power plant emissions? (Points : 1) smog ozone hole global warming acid rain

A teacher asked her class to name three different fractions that are all equal to 2 thirds and that have an odd denominator.List 3 fractions that the students m

In the surface current map below, the red arrows represent what type of surface current? a. hot b. cold c. warm

An office supply company is shipping a case of wooden pencils to a store. There are 64 boxes i pencils in the case. If each box of pencils wei