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Nitella [24]
4 years ago
14

NEED HELP ASAP.

Mathematics
1 answer:
Vlad1618 [11]4 years ago
5 0
I found the answer is 400mm
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What is the perimeter of a rectangular pentagon with side lengths of 15 inches
borishaifa [10]
5 sides

each side is 15

perimiter is distance around the shape or the legnth of the sides added up

5 of them
15
5 times 15=75


75 inches
8 0
3 years ago
George is twice the age of Mike minus 5. The sum of George and Mike's ages is 31. How old is George and write an equation to rep
Temka [501]

Answer:

  • George is 19

Step-by-step explanation:

George is g and Mike is m

  • g = 2m - 5
  • g + m = 31

Substitute g in the second equation

  • 2m - 5 + m = 31
  • 3m - 5 = 31
  • 3m = 36
  • m = 12

Finding g

  • g = 2*12 - 5 = 24 - 5 = 19
6 0
3 years ago
The value of a collector’s item is expected to increase exponentially each year. The item is purchased for $500. After 2 years,
Andreyy89
Y = 500(1 + r)^x; where r is the rate and x is the number of years.
500(1 + r)^2 = 551.25
(1 + r)^2 = 551.25/500 = 1.1025
1 + r = sqrt(1.1025) = 1.05

Therefore, the equation that represents y, the value of the item after x years is
y = 500(1.05)^x
7 0
4 years ago
Multiply and simplify: –5gh4 • (–2g3h5)
Natasha_Volkova [10]
A. 10g4h9

-5gh4(-2g3h5)
(-5 x -2)= 10
(g x g3)=g4
(h4 x h5)= h9
 = 10g4h9
8 0
3 years ago
Expressions equivelant to 64^x
Lana71 [14]

64^{\text{x}} = (8^2)^{\text{x}} = 8^{2\text{x}}

The rule used is that (a^b)^c = a^{bc} we multiply the exponents b and c.

Or we could say this

64^{\text{x}} = (4^3)^{\text{x}} = 4^{3\text{x}}

Or,

64^{\text{x}} = (2^6)^{\text{x}} = 2^{6\text{x}}

Therefore, we have multiple possible answers.

4 0
2 years ago
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