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Lana71 [14]
3 years ago
8

I need help a s a p

Mathematics
2 answers:
QveST [7]3 years ago
7 0

Answer:

is 1:9

That is the final answer :)


Vilka [71]3 years ago
4 0

1 : 9

The scale factor of corresponding sides is

\frac{2}{3} : 6 ( multiply both by 3 to eliminate fraction )

2 : 18 ( divide both parts by 2 )

= 1 : 9 ← in simplest form


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Let f(x)=x2−2x−4 . What is the average rate of change for the quadratic function from x=−1 to x = 4?
goblinko [34]

Answer:

The average rate of change for f(x) from x=−1 to x = 4 is, 1

Step-by-step explanation:

Average rate A(x) of change for a function f(x) over [a, b] is given by:

A(x) = \frac{f(b)-f(a)}{b-a}

As per the statement:

f(x) = x^2-2x-4

we have to find the average rate of change from x = -1 to x = 4

At x = -1

f(-1) = (-1)^2-2(-1)-4 = 1+2-4 = -1

and

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f(4) = (4)^2-2(4)-4 = 16-8-4 = 4

Substitute these in [1] we have;

A(x) = \frac{f(4)-f(-1)}{4-(-1)}

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⇒A(x) = \frac{5}{5}

Simplify:

A(x) = 1

Therefore, the average rate of change for f(x) from x=−1 to x = 4 is, 1

4 0
3 years ago
Read 2 more answers
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