Answer:
D
Step-by-step explanation:
cos 30 = 9/x
x = 9/(
) = 6
(6)² - 9² = x²
x² = 27
x = 3
Answer:
The answer is x^3 - 11x^2
Step-by-step explanation:
Write in standard form.
Hoped this helped!
brainly, please?
Answer: Yes! those are indeed apart of the fact family
Step-by-step explanation:
Notice that 9+5=14 and 5+9=14, thus the first two equations
show that if we add two numbers in any order, we get the same answer.
Notice that 14-9=5 and 9+5=14, so subtraction and addition are
related. Similarly 14-5=9 and 5+9=14
Notice that 14-9=5 and 14-5=9, so if you subtract one of the
members of the fact family from 14, you get the other.
20(15x − 34)+9x
Multiply the bracket by 20
(20)(15x)=300x
(20)(-34)=-680
300x-680+9x
300x+9x-680 ( combine like terms)
Answer: 309x-680
