3(4x+3) simplified as an expression is: 12x+9
Answer:
x=-12
x=10
x=-8
x=-5
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
I don't know how to eliminate the wrong answers.
Two line segments which have one end at a diameter and the other end meeting at a common point, make a 90 degree angle.
A is made that way, so A is 90 degrees.
Answer: A three-sided polygon is a triangle.
There are several different types of triangle (see diagram), including: Equilateral – all the sides are equal lengths, and all the internal angles are 60°. Isosceles – has two equal sides, with the third one a different length.
Step-by-step explanation:
Answer: 30 kilograms
explanation: Each 1000 grams converts to 1 kilogram
