3 years ago

Isosceles trapezoid ABCD has legs AB and CD and base BC. If AB=6y-6, BC=4y-7, and CD=7y-12, find the value of y.

Mathematics

1 answer:

Otrada [13]3 years ago

5 0

I'm pretty sure y=6, but I would take caution.

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Y=6x+20 substitution

Oksana_A [137]

Answer:

-10/3 or -3.33

Step-by-step explanation:

substitute 0 for y

0 = 6x + 20

-20 = 6x + 20 - 20 subtract 20 on both sides

-20 = 6x divide by 6 on each side

-20/6 = 6x/6

x = -20/6 simplify

x = -10/3

8 0

3 years ago

Rewrite the expression x^3+10x^2+13x+39/x^2+2x+1 in the form of q(x)+r(x)/b(x)

natima [27]

$\dfrac{x^3+10x^2+13x+39}{x^2+2x+1}$

$x^3=x\cdot x^2$ , and $x(x^2+2x+1)=x^3+2x^2+x$ . Subtracting this from the numerator gives a remainder of

$(x^3+10x^2+13x+39)-(x^3+2x^2+x)=8x^2+12x+39$

$8x^2=8\cdot x^2$ , and $8(x^2+2x+1)=8x^2+16x+8$ . Subtracting this from the previous remainder gives a new remainder of

$(8x^2+12x+39)-(8x^2+16x+8)=-4x+31$

$-84x$ is not a multiple of $x^2$ , so we're done. Then

$\dfrac{x^3+10x^2+13x+39}{x^2+2x+1}=x+8+\dfrac{-4x+31}{x^2+2x+1}$

4 0

3 years ago

(Help! If possible can you explain how you got the answer plz and thank u) If the average weight of 10 sacks of soil is 40 lbs.,

defon

Answer:

I think the answer is C but I'm not too sure so if it doesn't sound right don't click it cuz I don't want you get the answer wrong

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A lasagna recipe that serves 6 people calls for 1 pound of pasta 1.5pounds of meat 2 cups of cheese and 2 cups of sauce

Zinaida [17]

Please specify what your asking, and I'd be glad to help!

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3 years ago

What’s 4930 x 184 equal

Flura [38]

Answer:

907120

Step-by-step explanation:

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