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maria [59]
3 years ago
9

Polygon ABCD is a scaled copy of polygon EFGH.

Mathematics
1 answer:
borishaifa [10]3 years ago
5 0

Answer:

Step-by-step explanation:

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HELP HELP PLEASE the height of the triangle is 16 cm, and fe=10 cm. What is the area of the triangle? A. 50 CM^2 B. 80 CM^2 C.16
enyata [817]

Answer:

B. 80 cm^2

Step-by-step explanation:

A = bh/2

A = (FE)(16 cm)/2

A = (10 cm)(16 cm)/2

A = 80 cm^2

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3 years ago
What is a line graph
8090 [49]

Answer:

A graph with points connected by lines to show how something changes in value:

• as time goes by,

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Step-by-step explanation:

8 0
3 years ago
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The maximum number of turning points of a 9th degree polynomial is?
Zigmanuir [339]

Answer:

8

Step-by-step explanation:

this was actually in my book and it came in today's test as well but I got 14/20 and failed lol

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2 years ago
Find a polynomial of degree 3 with real cofficients and zeros of -3,-1,4 for which f(-2)=24​
konstantin123 [22]

\bf \textit{zeros at } \begin{cases} x = -3\implies &x+3=0\\ x = -1\implies &x+1=0\\ x = 4\implies &x-4=0 \end{cases}\qquad \implies (x+3)(x+1)(x-4)=\stackrel{y}{0} \\\\\\ (x^2+4x+3)(x-4)=0\implies x^3~~\begin{matrix}+ 4x^2 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~+3x~~\begin{matrix} -4x^2 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~-16x-12=0 \\\\\\ x^3-13x-12=0

we know that f(-2) = 24, namely when x = -2, y = 24, let's see if that's true

\bf x^3-13x-12=y\implies \stackrel{x = -2}{(-2)^3-13(-2)-12}=y \\\\\\ -8+26-22=y \implies 6=y

darn!! no dice.... hmmmm wait a second.... 4 * 6 = 24, if we could just use a common factor of 4 on the function, that common factor times 6 will give us 24, let's check.

\bf 4(x^3-13x-12)=y\implies \stackrel{x = -2}{4[~~(-2)^3-13(-2)-12~~]}=y \\\\\\ 4[~~-8+26-22~~]=y\implies 4[6]=y\implies 24=y \\\\[-0.35em] ~\dotfill\\\\ ~\hfill 4x^3-52x-48=y~\hfill

4 0
4 years ago
Identify the 6 coins that will make a total of $0.66
Sauron [17]
2 quarters, 3 nickels, 1 Penny
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4 years ago
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