sanaalrahwanji sanaalrahwanji

02-12-2020
Mathematics

contestada

In this question, all lengths are in centimetres.
Given
AB: AC = 1:2
AB= 3x-4
AC= 2x + 12
show that
AC: BC = 2:3
BС= 7X-2

In this question all lengths are in centimetres Given AB AC 12 AB 3x4 AC 2x 12 show that AC BC 23 BС 7X2 class=

Respuesta :

09-01-2021

Answer:

Step-by-step explanation:

AB/AC =1/2

(3x-4)/(2x+12)=1/2

2(3x-4) = 1(2x+12)

6x-8=2x+12

4x=20

X=5

AC/BC =3x-4/7x-2=22/33=2/3

AB/AC=3x-4/7x-2=22/33=2/3

AB/AC=3x-4/2x+12

6x-8=2x+12

You would get 4/5 still trying to work out the last mark

Answer Link

Otras preguntas

Australia is west of Fiji true or false

Caroline has 16 marbles 1\8 of them are blue how many of Caroline's marbles are blue

In general, you would expect the platform of a political party to A. determine the outcome of a general election. B. guide the political issues of the party's

Two or more substances that are blended together but not chemically combined make up a(n) _____. element compound mixture formula

compare 40 oz and 4 lb

3 over 50 as a decimal

What is urbanization? A. a process in which an increasing number of people move to cities and suburbs B. a process in which the rural population of a region gr

at the end of one performance the total that isaac received was 750. THIS INCLUDED A TIP FOR THE USUAL FEE OF 649 WHAT PERCENT WAS THE TIP

when should you reach out for support

What is the dependent variable? The more time David spent playing video games, the lower his grades became. A) Number of video games owned B) Points earned play