3 years ago

When using the Elimination

Mathematics

2 answers:

slava [35]3 years ago

6 0

I believe you’re corrext

Svetradugi [14.3K]3 years ago

4 0

Yes i think ur answer is correct

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Mr wicks designs houses. He uses grid paper to plan a new house design. The kitchen will have an area between 70 sq ft and 85sq

s344n2d4d5 [400]

2*4 =8 +18*4=72...............................................................................

5 0

3 years ago

How do I evaluate this integral?<img src="https://tex.z-dn.net/?f=%20%5Cint%5Climits%20%7B%20%5Cfrac%7Bx%7D%7Bx%5E4%2B1%7D%20%7D

inessss [21]

One thing you could try is to set $x=\sqrt y$ . This makes $y=x^2$ , so that $\mathrm dy=2x\,\mathrm dx$ , and $y^2=x^4$ . So the integral is

$\displaystyle\int\frac x{x^4+1}\,\mathrm dx=\frac12\int\frac{\mathrm dy}{y^2+1}=\frac12\arctan y+C=\frac12\arctan(x^2)+C$

A "trickier" way to do it is to write

$x^4+1=(x^2+\sqrt2x+1)(x^2-\sqrt2x+1)$

so you could decompose the integrand into partial fractions. But that's more work than needed.

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4 years ago

For any two nonzero integers the product and quotient have the same sign

tatiyna

Truer words are seldom if ever written.

7 0

3 years ago

A recipe for pizza sauce calls for 7 cans of tomatoes and 21 teaspoons of oregano. How many teaspoons of oregano would you need

Schach [20]

Answer:

Step-by-step explanation:

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3 years ago

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The formula for the area of a triangle is A=bh/2. The area of a triangle is 26 cm squared and its base is 12cm. Using algrebra,

Fed [463]

Answer:

Step-by-step explanation:

Consider the following;

$A = 1 / 2 * Base * Height,\\26 cm^2 = 1 / 2 * ( 12 cm ) * Height$

Let us say that Height = x. If that is so, through algebra, let us solve for x;

$26 cm^2 = 1 / 2 * ( 12 cm ) * x,\\26 cm^2 = 6 cm * x,\\26 cm^2 / 6 cm = x,\\\\x = 26 cm^2 / 6 cm,\\x = 4 and 1 / 3\\\\Conclusion, Height = 4 and 1 / 3 ( cm )$

<em>Solution ⇒ 4 and 1 / 3 cm</em>

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3 years ago