You want to use the distributive property, i.e. the possibility to distribute a multiplication to both terms of an sum/subtraction.
In this case, if you think of 395 as of 400-5, you have
And you can use the distributive property to write
Both of these multiplications are easy to perform in your mind:
Answer:
cos(θ) > 0
Step-by-step explanation:
In Quadrant IV, the cosine is positive.
__
In the attached, trig functions not listed are negative.
Answer:
Below.
Step-by-step explanation:
7) c^2 = a^2 + b^2
15^2 = 11^2 + b^2
b^2 = 225 - 121 = 104
b = √104
= √4√26
= 2√26.m
8). 4^2 = a^2 + (√6)^2
a^2 = 16 - 6
a^2 = 10
a = √10.
Answer:
B) 27
Step-by-step explanation:
(-3,27)
(-1,19)
(0,15)
(2,7)
