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

A line of roses forms the diagonal of a rectangular flower garden. Th e line of roses is 18.4 m long, and one side of the garden is 13 m long. To the nearest te

15 POINTS!! how did literature change during the industrial revolution?

How can the process of malting harm the insect?

What are the supplementary angels?

Find the minimum value o f c=2x+y Subject to the following constraints X≥0 Y≥2 2x+y≤10 X-3y≥-3 Please help

∆ABC has vertices at A(12, 8), B(4, 8), and C(4, 14). ∆XYZ has vertices at X(6, 6), Y(4, 12), and Z(10, 14). ∆MNO has vertices at M(4, 16), N(4, 8), and O(-2

How many perfect square numbers lie between 0 and 150? 13, 12, 10, or none of these

•What are some examples of real-world applications that have improved our lives as a result of research where biology, neuroscience, and psychology overlap?

Cos x+ 2cosx + Sinx=0 solve the equation for the interval [0,2pi]

Classify the reaction as unimolecular, bimolecular, or termolecular.