Find the area of the polygon. 12 cm12 cm19 cm The area of the polygon is square centimer

Mathematics

1 answer:

Vilka [71]3 years ago

8 0

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Determine the factors of x2 − 12x − 20.

FrozenT [24]

Answer:

Step-by-step explanation:

Synthetic division is one way to determine whether or not a given number is a root of the quadratic. x^2 − 12x − 20 can be rewritten as x^2 - 12x + 36 - 36 - 20, or (x - 6)^2 - 56, which does not have integer solutions:

(x - 6)^2 - 56 = 0 becomes (x - 6)^2 = 56, which works out to x - 6 = ± 2√14.

None of the possible roots suggested in this problem turns out to be an actual root.

correct response: PRIME

3 0

3 years ago

A term account earns 3.6%, compounded daily for 3 years. If the amount is $8411.02 at the end of the 3 year period, what was the

ValentinkaMS [17]

Answer:

7550

Step-by-step explanation:

$AV=PV(1+\frac{i}{n} )^{nt}\\8411.02=PV(1+\frac{.036}{365})^{365*3}\\8411.02= PV*1.114\\PV= 7550$

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3 years ago

The school concert raised $1360 from the sale of 400 tickets. If adult tickets cost $5 and student tickets $3, how many student

Sergeeva-Olga [200]

$x-how\ many\ student\ tickets\ were\ sold\\ \\3\cdot x+5\cdot (400-x)=1360\\ \\3x+2000-5x=1360\\ \\-2x=-640\ \ \ \Rightarrow\ \ \ \ x=320\\ \\Ans.\ 320\ tickets\ for\ students$