2 years ago

Dividing decimals model

2 answers:

7 0

The answer is B;

8 x .1 = .8
And you have four groups of 8
.8 x 4 = 3.2

4 0

The answer is B

hope this helps

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Vera_Pavlovna [14]

It consists of a y translation follow by a reflection of x. Glide reflection.

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Kitty [74]

Answer: 3/2

Step-by-step explanation:

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Artemon [7]

C=2pir
r=4
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suter [353]

Prime factorization of 5·2·5=5^2·2

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3 years ago

Sophie [7]

The idea is to use the tangent line to $f(x)=\sqrt x$ at $x=25$ in order to approximate $f(25.3)=\sqrt{25.3}$ .

We have

$f(x)=\sqrt x\implies f(25)=\sqrt{25}=5$

$f'(x)=\dfrac1{2\sqrt x}\implies f'(25)=\dfrac1{10}$

so the linear approximation to $f(x)$ is

$L(x)=f(5)+f'(5)(x-5)=5+\dfrac{x-5}{10}=\dfrac x{10}+\dfrac92$

Hence $m=\frac1{10}$ and $b=\frac92$ .

Then

$f(25.3)\approx L(25.3)=\dfrac{25.3}{10}+\dfrac92=\boxed{7.03}$

4 0

2 years ago