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Deffense [45]
3 years ago
9

Can someone plz help this is hard plz

Mathematics
2 answers:
Assoli18 [71]3 years ago
7 0
The second answer, 9 = 1 + 2n
Alika [10]3 years ago
3 0

Answer:

B. 9=1+2n

Step-by-step explanation:

Read it aloud to write it out correctly

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Find the number of subset and number of proper subset from A=(5,6,7,8)
dezoksy [38]

Step-by-step explanation:

The number of subsets=2ⁿ where n=4 members

2ⁿ=2⁴=16

Number of proper subsets=2ⁿ-1

16-1=15

3 0
3 years ago
What number is 20% of 80? HELPPP!
blondinia [14]

Answer:

16

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Hope this helps!!!!!!!!

Step-by-step explanation:

Remember 20% = 0.20 or 0.2

so 20% x 80 = 0.2 x 80 = 16

7 0
3 years ago
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Beverly drove from the Atlantic City to New York she drove 284 miles at a constant speed of 58 mph how long did it take Beverly
lubasha [3.4K]

Answer:

4.9 hours = 4 hours 54 minutes

Step-by-step explanation:

speed = distance/time

time * speed = distance

time = distance/speed

time = (284 miles)/(58 mph) = 4.9 hours

4.9 hours - 4 hours = 0.9 hours

0.9 hours * (60 minutes)/(1 hour) = 54 minutes

4.9 hours = 4 hours 54 minutes

8 0
3 years ago
What is the volume, in cubic centimeters, of a right rectangular prism that has a lenght of 4 centimeters, a width of 9 centimet
Temka [501]

Answer:

The volume of the prism is 360 cm^3.

Step-by-step explanation:

The rectangular prism is a three dimensional figure formed by six rectangular faces. It's volume is given by the product of it's three dimensions. The calculation for the volume of this prism is shown bellow:

volume = width*height*length

volume = 9*10*4

volume = 360 cm^3

The volume of the prism is 360 cm^3.

7 0
3 years ago
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The spray from a spinning lawn sprinkler covers an area of 625pi square feet.
kari74 [83]
<span>x/900(pi) = 135/360

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Hope this helps!
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3 years ago
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