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

Product prices are set on the marketing budget detail spreadsheet a. true b. false 2. each market segment responds to different types of media (e.g. print, dire

This diagram shows a pre-image △ABC , and its image, △A′′B′′C′′ , after a series of transformations. Select from the drop-down menus to correctly complete the s

if a human system fails to work properly,what is the most likely result

Difference between qualitative and quantitative observations?

Which linear inequality is represented by the graph?

Which of the following BEST describes the main difference between scarcity and a shortage? A. While a shortage is a temporary market condition, scarcity is an o

what two industries dominate Hawaii?

Which group of words is a sentence fragment? A. The girl with a cap. B. I tried, but it was too late. C. I have made a list. D. It is broken.

Y= -x -6 -x + y = -6 Y= -6x - 1 -x - y = -6

What are pseudopods? Select one: a. are cytoplasm walls b. are cytoplasm feet c. are cytoplasm extensions d. are cytoplasm cells