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DerKrebs [107]
2 years ago
13

Complete each statement

Mathematics
1 answer:
gtnhenbr [62]2 years ago
3 0
2 x 2 = 4
2 x 2 x 2 = 6
2 x 2 x 2 x 2 = 8
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There are 25 towns in a certain country, and every pair of them is connected by a train route. How many train routes are there?
7nadin3 [17]

Answer:

13

Step-by-step explanation:

a pair=2

so 25/each pair of towns

25/2=12+1=13

5 0
3 years ago
A square sheet of rubber has sides that are 20 cm long. What is the area of the square of rubber in cm squared?
adoni [48]

Answer:

area \:  = side \times side \\ area = 20 \times 20 \\ area = 400 \:  {cm}^{2}

8 0
2 years ago
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At noon, Bradley began steadily increasing the
barxatty [35]

Answer:

25.5 mph

Step-by-step explanation:

So Bradley's speed can be modeled by the equation y=2x+40 where y=speed, x=time in hours after noon, and b=initial speed

So 12:15 is 15 minutes after noon, which is also 0.25 or 1/4 of an hour after noon. This is the x-value. Plug this into the equation to get his speed at 12:15

y=2(0.25)+40

y=0.5+40

y=40.5

So his speed was 40.5 at the time and since he was going 15 miles over the speed limit, the speed limit is 15 less than his speed

40.5 - 15 = 25.5

8 0
1 year ago
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Shape B is an enlargement of shape A by scale factor -2.
irinina [24]

Answer: Scale factor of -1/2

Step-by-step explanation:

B=A*(-2)

A=B/(-2)

A=-(B/2)

A=B*(-1/2)

Scale factor of -1/2

7 0
1 year ago
An online retailer offers next-day shipping for an extra fee. The retailer says that 95% of customers who pay for
alekssr [168]

Answer:

Step-by-step explanation:

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2 years ago
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