Answer:
87.88 ft
Step-by-step explanation:
Base x height divided by 2
16.9 ft x 10.4 ft divided by 2 = 87.88 ft
hope this helps:)
Answer:
Should be D: Area multiplied by 1/3
Step-by-step explanation:
So since your radius is being multiplied by 1/3, so is your area. I think.
The product of 5 and n is written as 
.
Two less than this product is 
I think is 12??? because area is l×w
Answer:
x = 5, y = -1/2
Step-by-step explanation:
3.5x - 5y = 20
3x + 4y = 13 multiply by 1.25 so the y's match up (you could match x's too)
3.75x + 5y = 16.25
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3.5x - 5y = 20
3.75x +5y = 16.25
7.25x + 0y = 36.25 you can add or subtract here (on this equation you add)
7.25x=36.25
x=5 So now we have x=5 and to find y we can just plug in x into one of the equations
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3(5) + 4y = 13
15 + 4y = 13
4y = -2
y = -1/2
x = 5, y = -1/2
Then you can plug in both to check your answers.
