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Kobotan [32]
3 years ago
13

A speedboat traveling at a constant speed arrives at its destination in 35 minutes. If it travels 70 miles, then what was the sp

eedboat’s speed?
Mathematics
1 answer:
My name is Ann [436]3 years ago
6 0

Answer:

120 mph

Step-by-step explanation:

Distance = rate * time

D = 70 miles

t = 35 minutes

So that gives us:

70 mi = r(35 min)

Divide both sides by 35 min:

70/35 mi/min = r

simplify:

2 mi/min = r

If you wish to convert to miles per hour, remember that there are 60 minutes in an hour:

2 * 60 = 120

120 mph = r

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Learning goal: to understand the rules for computing dot products. let vectors a=(2,1,−4), b=(−3,0,1), and c=(−1,−1,2). part a -
miv72 [106K]
For this case we have the following vectors:
 a = (2,1, -4)

b = (- 3,0,1)

c = (- 1, -1,2)
 The dot product of two vectors is a scalar.
 The point product consists of multiplying component by component and then adding the result of the multiplication of each component.
 For the product point of the vectors a and b we have:
 a.b = (2,1, -4). (- 3,0,1)

a.b = (2) (- 3) + (1) (0) + (-4) (1)

a.b = - 6 + 0 - 4

a.b = - 10
 Answer:
 
The product point of the vectors a and b is: 
 
a.b = - 10
3 0
3 years ago
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vovikov84 [41]

Answer:

25a^2-49

Step-by-step explanation:

1)use FOIL

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O=out

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25a^2-49

Hope this helps!

5 0
3 years ago
Read 2 more answers
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Kryger [21]

Answer:

Ratio is 1:5; there are 5 times more blue marbles so there should be 10 blue marbles

Step-by-step explanation:

7:35 creates a 1 green marble to every 5 blue marbles ratio. So for every green marble there are 5 blue marbles. If you have 2 green marbles then you have 5+5 blue marbles

4 0
2 years ago
The home for sale is listed at $150,000.00. They have $30,000.00 for a down payment and are qualified for a fixed rate 30-year m
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Answer:

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Step-by-step explanation:

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2 years ago
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Step-by-step explanation:

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