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velikii [3]
3 years ago
9

Please answer I’ll rate brainlyest

Mathematics
1 answer:
elixir [45]3 years ago
6 0

Answer:

The third choice is correct

Step-by-step explanation:

The given expression is

2^n-1

when n=7, we substitute into the formula to obtain;

2^7-1

Note that;

2^7=2\times 2\times 2\times 2\times 2\times 2\times 2=128

2^7-1=128-1=127

The third choice is correct

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If 1/4 = 1ft and the fence is 40 ft long how long would the wall appear in inches on the scaled drawing
kolezko [41]

Answer:

480

Step-by-step explanation:

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3 years ago
Graph the inequality.
LuckyWell [14K]

Answer:

x<=5

Step-by-step explanation:

Two things

  • direction its pointing is always how the sign will look like
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3 years ago
A parking lot has ten parking spaces. There are the same number of cars parked in the parking lot as there are empty parking spa
Karolina [17]

Answer:

0.5

Step-by-step explanation:

Total space in the parking lot = 10

number of cars parked = p

number of empty parking spaces = e

There are the same number of cars parked in the parking lot as there are empty parking spaces.

This means,

Number of parked cars = number of empty parking spaces

p = e

If the number of parked cars and number of empty parking spaces = 10

p + e = 10

If p = 5

Then,

p + e = 10

5 + 5 = 10

Write a decimal to show the part of the parking lot that has empty parking spaces.

Empty parking space/total parking space

= 5/10

= 1/2

= 0.5

part of the parking lot that has empty parking spaces = 0.5

8 0
3 years ago
105.6% in decimal form
anastassius [24]

To turn 105.6% into a decimal, we can remove the percent sign and divide by 100.

105.6 ÷ 100 = 1.056

Therefore, 105.6% can be written as the decimal 1.056.

3 0
3 years ago
Read 2 more answers
Can someone help with this please
zepelin [54]
Https://www.google.com/?sa=X&ved=0ahUKEwjNk_Sj3v_dAhVfJTQIHW01DQgQOwgC https://www.google.com/?sa=X&ved=0ahUKEwjNk_Sj3v_dAhVfJTQIHW01DQgQOwgC https://www.google.com/?sa=X&ved=0ahUKEwjNk_Sj3v_dAhVfJTQIHW01DQgQOwgC

4 0
3 years ago
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