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3 years ago

Lol help What is 3.5 × 1.2 =

Mathematics

2 answers:

Aleks04 [339]3 years ago

7 0

Answer:

4.2

Step-by-step explanation:

3.5 x 1.2 = 4.2

Ksenya-84 [330]3 years ago

3 0

Answer:

3.5 x 1.2 = 4.2

Step-by-step explanation:

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PLEASE ANSWER THIS QUESTION

EleoNora [17]

Answer:

-1

Step-by-step explanation:

because when y is 2, x is -1

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3 years ago

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Is 9.22222 a irrational number

jonny [76]

Answer:

Step-by-step explanation:

9.222222 is not a irrational number.

Hope this helps plz hit the crown :D

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3 years ago

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Find the perimeter of a rectangle 12.5 cm. long and 3.5 cm wide

Anna [14]

12.5+3.5+12.5+3.5=32

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3 years ago

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The following integral requires a preliminary step such as long division or a change of variables before using the method of par

shtirl [24]

Division yields

$\dfrac{x^4+7}{x^3+2x} = x-\dfrac{2x^2-7}{x^3+2x}$

Now for partial fractions: you're looking for constants a, b, and c such that

$\dfrac{2x^2-7}{x(x^2+2)} = \dfrac ax + \dfrac{bx+c}{x^2+2}$

$\implies 2x^2 - 7 = a(x^2+2) + (bx+c)x = (a+b)x^2+cx + 2a$

which gives a + b = 2, c = 0, and 2a = -7, so that a = -7/2 and b = 11/2. Then

$\dfrac{2x^2-7}{x(x^2+2)} = -\dfrac7{2x} + \dfrac{11x}{2(x^2+2)}$

Now, in the integral we get

$\displaystyle\int\frac{x^4+7}{x^3+2x}\,\mathrm dx = \int\left(x+\frac7{2x} - \frac{11x}{2(x^2+2)}\right)\,\mathrm dx$

The first two terms are trivial to integrate. For the third, substitute y = x ² + 2 and dy = 2x dx to get

$\displaystyle \int x\,\mathrm dx + \frac72\int\frac{\mathrm dx}x - \frac{11}4 \int\frac{\mathrm dy}y \\\\ =\displaystyle \frac{x^2}2+\frac72\ln|x|-\frac{11}4\ln|y| + C \\\\ =\displaystyle \boxed{\frac{x^2}2 + \frac72\ln|x| - \frac{11}4 \ln(x^2+2) + C}$

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2 years ago

How many 1/8s are there in 3/4

natka813 [3]

Answer:

there are 6/8 in 3/4

Step-by-step explanation:

if you want to change the denominator of the fraction, you must find the multiple of it,

(3/4) x 2 is 6/8

so you have 6 x (1/8) thats the same 6/8

3/4 is the minimum simplification, if you want to find the same fraction but with other denominator, you have to multiply 3/4 for any number, to do this you have to multiply the numerator and the denominator

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3 years ago

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