Answer: B
Step-by-step explanation: An isosceles right triangle is an isosceles triangle and a right triangle. This means that it has two congruent sides and one right angle. Therefore, the two congruent sides must be the legs.
Two terms that add to 22 and multiply to give 21 are 21 and 1. Replace 22x with 22x and x.
7x^2 + 21x + x + 3
7x (x + 3) + 1 (x + 3)
(7x + 1) (x + 3)
It is easy to make a word problem with 5th graders. All you have to do is imagine characters and math problem and put them together. For example, Mrs. Linda wants to equally divide her pens between her class. The class has 30 pens and 20 students. How many pens should each student get? Each student should have a one pen.
I know this because 30➗20= 1.5. That is my Brainly.com answer.
Answer:
D. 
Step-by-step explanation:
A square root can't be evaluated if the number we want to find the square of is nagative.