Answer:
a^2 +4ab+4b^2
Step-by-step explanation:
(a+2b)^2
(a+2b)(a+2b)
FOIL
first: a*a = a^2
outer: a*2b = 2ab
inner: 2b*a = 2ab
last: 2b*2b = 4b^2
Add them together
a^2 +2ab+2ab+4b^2
Combine like terms
a^2 +4ab+4b^2
Which one do you need help with
Answer: the area of Manitoba is
649004 square meter
Step-by-step explanation:
The area of Canada is approximately 9,984,670 km squared. The area of Manitoba is about 6 1/2% of the area in Canada. Converting 6 1/2 to decimal, it becomes 6.5%.
Therefore, the area of Manitoba would be
6.5/100 × 9984670
= 0.065 × 9984670 = 649003.55
Converting to the nearest square kilometer, it becomes
649004 square meter
<span> 3( x + 1 ) = - 2 ( x - 1 ) + 6 </span>
<span>1) Clear the parentheses by distributing the 3 and the - 2 </span>
<span>When you have done that, this is what you will get: </span>
<span>3x + 3 = - 2x + 2 + 6 </span>
<span>2) Combine the like terms on the right </span>
<span>You will get this: </span>
<span>3x + 3 = - 2x + 8 </span>
<span>3) Add 2x to both sides to collect all the x terms together on the same side </span>
<span>When you finish doing that, you will have </span>
<span>5x + 3 = 8 </span>
<span>4) Subtract 3 from both sides to isolate the 5x term alone on one side </span>
<span>You will get </span>
<span>5x = 5 </span>
<span>5) Divide both sides by 5 to isolate x </span>
<span>x = 1 <-- answer</span>
Let x be the number of child admission tickets sold:
Child's ticket = x
There is a total of 145 tickets sold:
Adult = 145 - x
Total sales is $1020.80:
5.6x + 9.2(145 - x) = 1020.8
Solve for x:
5.6x + 9.2(145 - x) = 1020.8
5.6x + 1334 - 9.2x = 1020.8
3.6x = 313.2
x = 313.2 ÷ 3.6
x= 87
Answer: Number of child's ticket = 87