Answer:
first option
Step-by-step explanation:
Given
area = 15x - 9 ← factor out 3 from each term
= 3(5x - 3)
Thus the dimensions are 3 by (5x - 3)
With the associative property, it does not matter which order you multiply numbers in. The answer to 4*5 is the same answer as 5*4. This works with more than two numbers as well. The associative property of addition also works this way.
In this question, it is important to watch where the parentheses are placed.
ANSWER: C) 4(2a * 5) = (2a * 5) * 4. Multiplying 4 to the left or the right of the set of parentheses will result in the same answer.
Hope this helps! :)
Answer:
10
Step-by-step explanation:
he can buy 10 because 7×10=70
Reason 1. AB is congruent to DC - given
Reason 2. AB is parallel to DC - given
Reason 3. angle BAC is congruent to angle DCA - alternate interior angles are congruent
Reason 4. AC is congruent to AC - reflexive property of congruence
Reason 5. triangle ABC is congruent to triangle CDA - Side Angle Side
AC is congruent to AC - reflexive property of congruence
Answer:
3
Step-by-step explanation:
f(x) = (1/7)(7x) can be simplified to ...
f(x) = x
Then for x=3, ...
f(3) = 3