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3 years ago

How do you integrate 7xe^-5x²?

1 answer:

3 0

Making assumptions about where parentheses should be,
Let u = -7x 
du = -7dx 
dv = e^(2x) dx 
v = e^(2x)/2 
∫ -7xe^(2x) dx = 
-7xe^(2x)/2 - ∫ e^(2x)/2 (-7) dx = 
-7xe^(2x)/2 + 7e^(2x)/4 + c

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Plz Help Only 1 question 24 POINTS

SOVA2 [1]

Dog No dog Total
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3 years ago

Use the rational zero theorem to create a list of all possible rational zeros of the function f(x)=14x7-4x2+2

frosja888 [35]

Answer:

Factor this polynomial:

F(x)=x^3-x^2-4x+4

Try to find the rational roots. If p/q is a root (p and q having no factors in common), then p must divide 4 and q must divide 1 (the coefficient of x^3).

The rational roots can thuis be +/1, +/2 and +/4. If you insert these values you find that the roots are at

x = 1, x = 2 and x = -2. This means that

x^3-x^2-4x+4 = A(x - 1)(x - 2)(x + 2)

A = 1, as you can see from equation the coefficient of x^3 on both sides.

Typo:

The rational roots can be

+/-1, +/-2 and +/-4

Step-by-step explanation:

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3 years ago

What is a formula for the nth term of the given sequence? 15, 24, 33

KatRina [158]

Answer:

The nth terms: 15,24,33,42,51,60,69,78,87,96,105...

Step-by-step explanation:

The nth term of an arithmetic sequence is given by an = a + (n – 1)d. So, to find the nth term, substitute the given values a = 2 and d = 3 into the formula

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2 years ago

Find the point-slope form of the equation of the line that passes through the given point and has the indicated slope. Point: (-

zzz [600]

Answer:

slope : 3

y + 3 = 3(x + 5)

y + 3 = 3x + 15

y = 3x + 12

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3 years ago

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Alisiya [41]

We are given the following conversion factor:

$10\text{ miles=}16\text{ km}$

We are asked to determine how many miles are 140 km. To do that we use the quotient of the conversion factor where the unit we want to convert to is in the numerator and the given unit in the denominator. Since we want to find miles we use the following quotient:

$\frac{10\text{ miles}}{16\text{ km}}\times140\operatorname{km}$

Solving the operations we get:

$\frac{10\text{ miles}}{16\text{ km}}\times140\text{ km=87.5 miles}$

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1 year ago