Answer:
each side is 90 degrees
Step-by-step explanation:
make the brainliest?
Answer:
21
Step-by-step explanation:
h(y)=3y^2-2y+5
Let y = -2
h(y)=3(-2)^2-2(-2)+5
= 3(4) +4 +5
= 12 +4 +5
=21
Using subtraction of perfect squares, it is found that the factored expression is:
9t² - 4 = (3t - 2)(3t + 2).
<h3>What is the subtraction of perfect squares factoring?</h3>
It is given as follows:
a^2 - b^2 = (a - b)(a + b)
In this problem, the binomial is given as follows:
9t² - 4.
Hence:
Hence the factored expression is:
9t² - 4 = (3t - 2)(3t + 2).
More can be learned about subtraction of perfect squares at brainly.com/question/16948935
#SPJ1
Answer:
can you get a better picture it is hard to see
Step-by-step explanation:
Step-by-step explanation:
42 people are male
34 people study biology
14 people are male and study biology
42/90 = 46.7% are male
34/90 = 37.8% study biology
14/90 =15.6% are male that study biology.