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Blizzard [7]
3 years ago
6

Estimate 32 to the nearest tenth

Mathematics
2 answers:
vlada-n [284]3 years ago
8 0
Nearest ten would be 30
Katena32 [7]3 years ago
7 0

Answer:

Step-by-step explanation:

5.1

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Y = 1/2x + 4
Mademuasel [1]

no solution.

The two lines are parallel

(same slope but different y intercepts)

6 0
2 years ago
A trough is 10 ft long and its ends have the shape of isosceles triangles that are 4 ft across at the top and have a height of 1
Anna11 [10]

Answer:

7.5 ft³/min

Step-by-step explanation:

Let x be the depth below the surface of the water. The height, h of the water is thus h = 10 - x.

Now, the volume of water V = Ah where A = area of isosceles base of trough = 1/2bh' where b = base of triangle = 4 ft and h' = height of triangle = 1 ft. So, A = 1/2 × 4 ft × 1 ft = 2 ft²

So, V = Ah = 2h = 2(10 - x)

The rate of change of volume is thus

dV/dt = d[2(10 - x)]/dt = -2dx/dt

Since dV/dt = 15 ft³/min,

dx/dt = -(dV/dt)/2 = -15 ft³/min ÷ 2 = -7.5 ft³/min

Since the height of the water is h = 10 - x, the rate at which the water level is rising is dh/dt = d[10 - x]/dt

= -dx/dt

= -(-7.5 ft³/min)

= 7.5 ft³/min

And the height at this point when x = 8 inches = 8 in × 1 ft/12 in  = 0.67 ft is h = (10 - 0.67) ft = 9.33 ft

7 0
2 years ago
What is give an example of a unit rate used in a real world situation? Plz I'm literally so confused lol.
nignag [31]

Answer:

Miles per hour. (mph)

Step-by-step explanation:

This can be used in almost everyday, since most people today drive around in cars, and use mph to see how fast they are going per hour.

#teamtrees #WAP (Water And Plant)

8 0
3 years ago
Read 2 more answers
What is the world made of and how do you know?
ivann1987 [24]

Answer:

the world is made of elements like gas and solid and more stuff

7 0
3 years ago
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Maria puts $2,500.00 in her money market account earning 8% interest annually. How much interest and how much money would she ha
Gnom [1K]
The correct answer: total interest = $1,784.56 and she would have $4,284.56 after 7 years
7 0
3 years ago
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