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vlada-n [284]
3 years ago
11

Please help me this is very important:

Mathematics
1 answer:
zubka84 [21]3 years ago
8 0
Is this for English it makes no sense at all if anything it should be for math dose not make sense at all........................................................................................................................................
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Use the associative property of addition to rewrite (20 + 11) + 5. Which expression is equivalent? O A. 5(20 + 11) B. (10 + 10 +
Alex

Answer:

i also needed help on this qustion and the awnser is

Step-by-step explanation:

C.

its the same problem and nothing changed besides the order↑≠≈

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3 years ago
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Find the perimeter of a regular octagon if one side has a measure of 8cm A) 16 cm B) 56cm C) 64cm D) 72cm
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C. 64cm 
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3 years ago
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One of the children bought their teacher a mathematical plant for the classroom windowsill. At the end of the first day it had i
Vlad [161]

Answer:

  18 days

Step-by-step explanation:

Here's a short table of heights:

  day 0: height = 1

  day 1: height = 1 + (1/2)(1) = 3/2

  day 2: height = (3/2) + (1/3)(3/2) = 3/2 + 1/2 = 2

The pattern of heights is ...

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  h = 1 + d/2

We want to find the number of days (d) that result in a height of 10 (ten times the original height).

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It took 18 days for the plant to grow to 10 times its original height.

5 0
3 years ago
Who c is the value of the expression [(10^4)(5^2)/10^3)(5^3)]^3 1 2 8 10
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Answer:

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6 0
3 years ago
What is the solution to the equation One-fourth x minus one-eighth = StartFraction 7 Over 8 EndFraction + one-half x?
snow_tiger [21]

Answer:

The solution to the equation is

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Step-by-step explanation:

We want to find the solution to the equation

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[1/4 - 1/2]x = 7/8 + 1/8

x(1 - 2)/4 = (7 + 1)/8

-(1/4)x = 8/8

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Multiply both sides by -4

x = -4

3 0
3 years ago
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