Answer:
Step-by-step explanation:
Just factored out the 10.
The last set (choice D) is a subset of given set B.
The other 3 choices are wrong.
Answer:
ZB= 39°
Step-by-step explanation:
complementary angles are angles that add up to equal 90
equation: 7x + 23 + 5x + 19 = 90
add like terms: 12x + 42 = 90
subtract 42 from both sides: 12x = 48
divide both sides by 12: x = 4
plug in the value of x to the equation for ZB: 5(4) + 19
simplify: ZB= 39°
A negative number is not considered a whole number...so ur answer is -229
Answer:
d.405
Step-by-step explanation:
135 x3=405
