Answer:
d
Step-by-step explanation:
that's the amount is t coe
Rewrite it in the form a^2 - b^2, where a = 2x and b = 5
(2x)^2 - 5^2
Use the Difference o Squares: a^2 - b^2 = (a + b)(a - b)
<u>(2x + 5)(2x - 5) </u>
Answer:
The first one is m A + 30 + 90 = 180
Second is 60
Step-by-step explanation:
A triangle’s added up angles ALWAYS equals 180.
The formula here is to subtract the two known angles from 180 and the answer leaves you with the unknown angle.
180 - 90 - 30 = A
So,
180 - 90 - 30 = 60
You can check by adding all the angles and it adding up to 180
90 + 30 + 60 = 180
Sixty hundred thousand eighty thousand and ten
