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3 years ago

I need help with this math questions

Mathematics

1 answer:

dmitriy555 [2]3 years ago

4 0

Answer:

Step-by-step explanation:

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What is the area of the square? Perimeter =108mi. 27 width

Leni [432]

Answer:

729 square units

Step-by-step explanation:

If the width of the square is 27, then the length is also 27. After all, this is a square with four equal sides.

The area of a square is A = s^2, where s is the length of one side.

Here, A = 27^2 = 729 square units.

4 0

4 years ago

Select the correct answer

White raven [17]

Answer:

Step-by-step explanation:

5 0

3 years ago

Use green’s theorem to evaluate

Georgia [21]

By Green's theorem (all the conditions are met), we have

$\displaystyle \int_C \sqrt y \, dx + \sqrt x \, dy = \iint_D \frac{\partial(\sqrt x)}{\partial x} - \frac{\partial(\sqrt y)}{\partial y} \, dx \, dy$

where D is the interior of the path C, or the set

$D = \left\{ (x, y) : 0 \le y \le \dfrac{x^2}2 \text{ and } 0 \le x \le 2 \right\}$

So, the line integral reduces to the double integral,

$\displaystyle \frac12 \int_0^2 \int_0^{\frac{x^2}2} x^{-\frac12} - y^{-\frac12} \, dy \, dx$

$\displaystyle = \frac12 \int_0^2 x^{-\frac12}\left(\frac{x^2}2\right) - 2\left(\frac{x^2}2\right)^{\frac12} \, dx$

$\displaystyle = \frac12 \int_0^2 \frac12 x^{\frac32} - \sqrt 2 \, x \, dx$

$\displaystyle = \frac14 \int_0^2 x^{\frac32} - 2\sqrt 2 \, x \, dx$

$\displaystyle = \frac14 \left(\frac25\cdot2^{\frac52} - \sqrt2\cdot2^2\right) = \boxed{-\frac{3\sqrt2}5}$

5 0

2 years ago

A total of 644 tickets were sold for the school play. They were either adult tickets or student tickets. There were 56 fewer stu

DochEvi [55]

Create formulas!

x=number of adult tickets

y=number of student tickets

x+y=644 <em>total sold</em>

56+y=x <em>student was 56 less than adult</em>

Perform substitution

(56+y)+y=644

56+2y=644

2y=588

y=294

Substitute y into the formula we created

x+294=644

x=350

350 adult tickets were sold.

3 0

4 years ago

Read 2 more answers

Can someone please help

Shalnov [3]

Answer:

I would say 0 if you add it all to be honest, but I’m not TOO aware- Hope this helps at least a bit!

Step-by-step explanation:

6 0

3 years ago