In isosceles △ABC, ∠B is obtuse and CH is an altitude (see the figure). Find
the perimeter of ∆ABC, if CH = 84 cm
and
m∠HBC = m∠BAC+m∠BCH?

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.

What is the value of the expression below? 148+(-6)| + |– 35= 7|

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%