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pentagon [3]
3 years ago
8

I need help on this math

Mathematics
1 answer:
zubka84 [21]3 years ago
7 0
Area = 20x5=100
Perimeter = 10+10+20+20=60
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Twelve members of a band purchase one beverage each during a break at practice. Exactly 5 of the 12 members bought bottled water
Hoochie [10]

Answer:

70

Step-by-step explanation:

You have to use ratios.  If 5 of 12 members bought water, then x of 168 members will buy water.

\frac{5}{12}  = \frac{x}{168}\\12x = 840\\x = 70

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8 0
3 years ago
A circle centered at (-2,3) and contains point (5,9) which represents the equation
SIZIF [17.4K]
The standard form of the equation of a circle is (x-h)^2 + (y-k)^2 = r^2, where (h,k) is the center of the circle, (x,y) is a point of the circle, and r is the length of the radius of the circle. When the equation of a circle is written, h,k, and r are numbers, while x and y are still variables. (x-2)^2 + (y-k)^2 = 16 is an example of a circle. The problem gives us two of the three things that a circle has, a point (5,9) and the center (-2,3). We need to find the radius in order to write the equation. We substitute -2 for h, 3 for k, 5 for x, and 9 for y to get (5 - (-2))^2 + (9 - 3)^2 = r^2 We simplify: 49 + 36 = r^2, r^2 = 85. We only need to know r^2 because the equation of a circle has r^2. We now have all the information to write the equation of a circle. (x + 2)^2 + (y - 3)^2 = 85.
8 0
3 years ago
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AlladinOne [14]

Answer:

x^2 - 11x + 24

Step-by-step explanation:

Foil the equation

x^2 - 3x - 8x + 24

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8 0
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Leni [432]

answer:

17,060 is the answer

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Lilit [14]
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2 thirty-sixes = 2•36 = 72
6 0
3 years ago
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