Answer:
36x² - 9y²
Step-by-step explanation:
We see that the given expression (6x + 3y)(6x - 3y) looks just like the expression (a + b)(a - b). When multiplied out, this is a difference of squares identity that I highly recommend you memorise:
(a + b)(a - b) = a² - b²
Here, a = 6x and b = 3y, so plug these in:
(6x + 3y)(6x - 3y) = (6x)² - (3y)² = 36x² - 9y²
Answer:
(24-4.00)-4.50/20
Step-by-step explanation: 24 minus 4 would be 20 and you could buy 4 phone cases because 20 divided by 4.50 is 4.4 so 4 times 4 is 16 plus the 2.00 dollars extra from the .50 in the 4.50 so it would be you can buy 4 phone cases.
Answer:
y=x+4
Step-by-step explanation:
Answer:
angle R = 37
angle Q= 114
angle p = 29
Step-by-step explanation:
(3x+3) +(x-8) +(x) =180
5x-5=180
x=185/5
x=37
Answer:
40 bars
Step-by-step explanation:
Where x = Number of bars purchased by each team
We solve this question by equating both Equations from Company A to Company B
Company A = Company B
0.75x = 10 + 0.50x
Collect like terms
0.75x - 0.50x = 10
0.25x = 10
x = 10/0.25
x = 40 bars
Hence, each team need to purchase 40 bars from each company
