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 one year ago
Which expression represents the area of the triangle? base=2x+12, height x+7
A)
3x + 19
B)
3x2 + 84
C)
x2 + 13x + 42
D)
2x2 + 26x + 84
 one year ago
Which expression represents the area of the triangle? base=2x+12, height x+7 A) 3x + 19 B) 3x2 + 84 C) x2 + 13x + 42 D) 2x2 + 26x + 84

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tcarroll010
 one year ago
Best ResponseYou've already chosen the best response.1A = bh/2 So, you would multiply the 2 expression for "b" and "h" (that are in "x") and divide by "2". Hint: It's easier to divide the "base" (or b) expression first by "2" and then simply multiply that by the expression for "h".

tcarroll010
 one year ago
Best ResponseYou've already chosen the best response.1So, what is the expression for for the base divided by "2"?

tcarroll010
 one year ago
Best ResponseYou've already chosen the best response.1Very good. So, now, all you have to do is multiply your answer by "x + 7" (x + 6)(x + 7) = ?

tcarroll010
 one year ago
Best ResponseYou've already chosen the best response.1When you have an expression like: (x + a)(x + b) It is: x(x + b) + a(x + b) = x^2 + bx + ax + ab = x^2 + (a + b)x + ab So, just substitute a = 6 and b = 7 in that last equation

TestTakingLifesaver
 one year ago
Best ResponseYou've already chosen the best response.0thank you this is so confusing

tcarroll010
 one year ago
Best ResponseYou've already chosen the best response.1Math can be, but if you take it step by step, it won't trick you. IMath is like a friend that speaks a foreign language.

TestTakingLifesaver
 one year ago
Best ResponseYou've already chosen the best response.0i'll practice and see if i can learn the langage

tcarroll010
 one year ago
Best ResponseYou've already chosen the best response.1That's a great attitude! You'll succeed if you stick with it. And you might want to go over that equality expansion a couple of times because it could clear things up for you.

TestTakingLifesaver
 one year ago
Best ResponseYou've already chosen the best response.0ok thanks so much

tcarroll010
 one year ago
Best ResponseYou've already chosen the best response.1You're very welcome and nice working with you!

tcarroll010
 one year ago
Best ResponseYou've already chosen the best response.1And thx for the recognition! @TestTakingLifesaver Good luck in all of your studies.
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