D is the answer
Step by step equation:
Answer:
Step-by-step explanation:
A quadratic equation is given to us and we need to solve the equation using the quadratic formula . The given equation is ,
Open the brackets in RHS ,
Transpose all the terms to LHS ,
The general form of a quadratic equation is ax² + bx + c = 0 , and the roots of the equation by the Quadratic Formula ( Shreedhacharya's Formula ) is given by ,
Using the quadratic formula , we have ,
Simplify ,

Answer:
C
Step-by-step explanation:
Because the ratio between 128 and -32 is the same as the ratio between -32 and 8
First, set the coordinate points on a graph, and joint them to form a graph
By looking at the graph we can see that:
width : 3
length: 6
Area of a rectangle : Length x width : 6 x 3 = 18
Let's say Alice is 4 feet tall and Bob is 6 feet tall. The ratio of their heights is the required Alice:Bob = 2:3. That means Bob is 3/2 = 1.5 times taller than Alice.