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3 years ago

Help w algebra problem!!!

Mathematics

1 answer:

Fantom [35]3 years ago

6 0

Answer:

Step-by-step explanation:

If the circumference of the circle is x cm the perimeter of the square will be 38-x cm.

The area of the square = (38-x)^2.

The radius r of the circle = circumference /2π = x / 2π.

The area of the circle = πr^2 = π * (x / 2π)^2

= x^2/ 4π.

So total area A = (38 - x)^2 + x^2/4π

A = 1444 - 76x + x^2 + x^2/ 4π

A = x^2 - 76x + 0.07958x^2 + 1444

A = 1.07958x^2 - 76x + 1444

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Susan has 50% more books than Michael. Michael has 40 books. If Michael buys 8 more books, will Susan have more or less books th

ololo11 [35]

Answer:

Susan has more books than Michael.

Step-by-step explanation:

If Susan has 50% more books and Michael has 40 books, that means Susan has 1.5 times 40 = 60

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3 years ago

Least to greatest -2, -3/4, -0.45, 3%, 0.36

Crank

Answer:

$\large\boxed{-2,\ -\dfrac{3}{4},\ -0.45,\ 3\%,\ 0.36}$

Step-by-step explanation:

We convert some numbers to decimal fractions:

-2 = -2.00

-3/4 = -0.75

-0.45

3% = 0.03

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We order

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$\dfrac{3}{4}=\dfrac{3\cdot25}{4\cdot25}=\frac{75}{100}=0.75$

other method

$\dfrac{3}{4}=3:4=0.75$ (use a calculator)

$p\%=\dfrac{p}{100}\to 3\%=\dfrac{3}{100}=0.03$

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3 years ago

In the standard (x, y) coordinate plane which equation represents a line through the point (6, 1) and perpendicular to the line

Nata [24]

Answer:

d. -2/3x+5

Step-by-step explanation:

Because the line is perpendicular, the slope must be the inverse of the original slope. The inverse of 3/2 is -2/3. To find the b value, you plug (6,1) into the equation y=-2/3x+b

1=-2/3(6)+b

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The final equation is y=-2/3x+5

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