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timurjin [86]
3 years ago
13

The table shows the relationship between the number of pens that are in given numbers of boxes. There is the same number of pens

Mathematics
1 answer:
Lorico [155]3 years ago
8 0
Oooof lol wyd lol ooof
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What proportion of the first 10,000 natural numbers contain a 3
Sergeeva-Olga [200]
In the first 10 -> 10 - 9 = 1 (contain a 3).
In the first 100 -> 100 - 9 * 9 = 19 (contain a 3).
In the first 10^n -> 10^n - 9^n  (contain a 3).




So for 10^4 -> 10^4 - 9^4 = 10.000 - 6.561 = 3.439 


<u>The answer is 3.439 numbers contain a 3 in the first 10.000</u>

3 0
3 years ago
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Find the measure of each angle in the isosceles trapezoid.
Scrat [10]

Answer:

Below in bold.

Step-by-step explanation:

m < C = m < D = 64 degrees

m <A + m < D = 180

m < A + 64 = 180

m<A =  180 - 64 = 116 degrees.

m < B = m< A = 116 degrees.

4 0
2 years ago
Rewrite f(x) into vertex form by completing the square f(x)=−x2+8x+9​
GalinKa [24]

Answer:

vertex  = ( 4  ,  25 )

Step-by-step explanation:

given a parabola in  standard form  y =  a x 2 + b x + c x ; a ≠ 0

then the x-coordinate of the vertex is

X vertex=-b/2a

y=-x2+8x+9 with a=-1 b=8 c=9

X vertex= -8/-2=4

substitute the value on the equation

Y vertex = -(4)squared+8(4)+9=25

3 0
3 years ago
Esme buys jacketsfor 500 each and prices them for 700 each.If the selling price is reduced by 20%. how much profitdoes Esme make
Blababa [14]

Answer:

($) 60 is the profit per item when the selling price is reduced by 20%

Step-by-step explanation: 20% of 700 is 140.

The original profit is 700 - 500 = 200. The selling price is 140 less, Subtract 140 from 200. That leaves a profit of 60. (Not necessarily dollars, as the currency was not given in the question.)

7 0
3 years ago
The owner of a home cleaning company provides her customers with?
BartSMP [9]

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Step-by-step explanation:

services

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