3 years ago

An adult blue whale can eat about 40 million Krill a day write this number in a scientific notation

Mathematics

2 answers:

BigorU [14]3 years ago

7 0

4x10^7 The number of zeros the given number has would be the exponent

Lelechka [254]3 years ago

4 0

4x10^7 is its scientific notation

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Given f(x) is a linear function with slope 3 and y-intercept -5, what is the equation of f(x) in standard form?

lawyer [7]

The standard form:

$Ax+By=C$

The slope-intercept form:

$y=mx+b$

m - slope

b - y-intercept

We have m = 3 and b = -5.

Substitute:

$y=3x-5$ subtract 3x from both sides

$-3x+y=-5$ change the signs

$3x-y=5$

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3 years ago

In 1 1/2 hours john can walk 4 1/2 miles find his average speed in miles per hour.

mezya [45]

John can walk 4 miles per hour

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3 years ago

What is y-4=3(x+3)<br><img src="https://tex.z-dn.net/?f=y%20-%204%20%3D%203%28x%20%2B%203%29" id="TexFormula1" title="y - 4 = 3(

aleksandr82 [10.1K]

Answer:

y-4=3(x+3)

y-4=3x+9

y-4+4=3x+9+4

y=3x+13

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3 years ago

Apply Newton’s method to estimate the solution of x3 − x − 1 = 0 by taking x1 = 1 and finding the least n such that xn and xn +

ss7ja [257]

Solution :

Given

$f(x)=x^3-x-1, x_1=1$

$f'(x)=3x^2-1$

Let the initial approximation is $x_1 =1$

So by Newton's method, we get

$x_{n+1}=x_n-\frac{f(x_n)}{f'(x_n)},n=1,2,...$

$x_2=x_1-\frac{f(x_1)}{f'(x_1)}=1-\frac{1^3-1-1}{3(1)^2-1}=1.5$

$x_3=1.5-\frac{(1.5)^3-1.5-1}{3(1.5)^2-1}=1.34782608$

$x_4=1.34782608-\frac{(1.34782608)^3-1.34782608-1}{3(1.34782608)^2-1}=1.32520039$

$x_5=1.32520039-\frac{(1.32520039)^3-1.32520039-1}{3(1.32520039)^2-1}=1.32471817$

$x_6=1.32471817-\frac{(1.32471817)^3-1.32471817-1}{3(1.32471817)^2-1}=1.32471795$

$x_5 \approx x_6$ are identical up to eight decimal places.

The approximate real root is x ≈ 1.32471795

∴ x = 1.32471795

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3 years ago

over the summer steven"s tutor told him he needed to complete 15 total workbook pages. he finished 5 workbook pages the first we

Eduardwww [97]

He has 2/3 left to complete.
He did 5 out of 15 which is 5/15 or 1/3. Therefore he has 1-1/3 or 2/3 left.

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3 years ago