How to write 395,980 in expanded form

Mathematics

2 answers:

OleMash [197]4 years ago

5 0

3=300000
9=90000
5=5000
9=900
8=80
0=0

nika2105 [10]4 years ago

3 0

In order to be able to write a number in expanded form, you must first understand how to find the value of a number. Remember the value represents the worth of a number based on the place that it is in. Expanded form is a way to write the value of each individual digit.

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The vertex of the graph of a quadratic function is (2.-1) and they intercept is (0,7). Which of the following is the equation of

Sophie [7]

$\text{The vertex formula:}\\\\f(x)=a(x-h)^2+k\\\\(h;\ k)-\text{the coordinates of the vertex}$
$\text{We have:}\\\\\text{the vertex}\ (2;\ -1)\to h=2;\ k=-1\\\\\text{y-intercept}\ (0;\ 7)\to f(0)=7$
$\text{substitute:}\\\\f(x)=a(x-2)^2-1\\\f(0)=7\to a(0-2)^2-1=7\ \ \ |+1\\\\4a=8\ \ \ |:4\\\\a=2$
$\text{Answer in the vertex form:}\\\\f(x)=2(x-2)^2-1\\\\\text{Answer in the standard form:}\\\\f(x)=2x^2-8x+7$

6 0

3 years ago

F(x) x2+1<br> What is f(f(x))

Andrews [41]

Step-by-step explanation:

(×) x ×2 + 1

x= 2+1

×= 3

3.2 +1 = x

6+1 = 7

×=7

F = (7)