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3 years ago

Tap A can fill 8 pails of the exact capacity in 5 minutes.

Mathematics

1 answer:

AfilCa [17]3 years ago

7 0

Answer:

4min 47 seconds

Step-by-step explanation:

Together

8pails/5min + 7pails/4min = x

Use common denominator of 20

32/20 + 35/20 = 67pails/20min = 3.35pails/min

16/3.35 = 4.776119403 minutes

4min 60*0.776119403sec

4min 47 seconds

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Determine the mean absolute deviation of the data.9, 7, 11, 10, 8

Darya [45]

Answer:

mean=average which means you add all of the numbers and divide by the number of numbers there are, which sounds pretty confusing, but i'll show you! 9+7+11+10+8=45, now you divide 45 by 5, which is how many numbers there are that we had to add. 45 divided by 5 is 9, which means the MEAN/average is 9!

Step-by-step explanation:

hope this helps!

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2 years ago

2) Which statement is correct?

prohojiy [21]

Answer = a

Explanation- A cube is a 3D figure and each face would be a square since it is a cube. Since each side is a square all the sides are the same Width, Length, and height. Therefor you would be multiplying whatever number your have by itself 3 times because the formula would be Length x Width x Height

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2 years ago

Jesseie competes in hot dog eating contest.he can eat 32 hot dogs in 8 minutes . How many hotdogs can he eat in 12 minutes

Allushta [10]

48 since he eats 4 a minute and 4 times 12 equals 48.

3 0

2 years ago

Read 2 more answers

What is a cubic polynomial function with zeros 3,3 and -3? show your work.

Brums [2.3K]

Answer:

Cubic polynomial function with zeros 3,3 and -3 is $\mathbf{x^3-3x^2-9x+27=0}$

Step-by-step explanation:

We need to find a cubic polynomial function with zeros 3,3 and -3.

If zeros of polynomial are: 3,3,and -3

we can write:

x=3, x=3, x=-3

We can write:

x-3=0, x-3=0, x+3=0

Now, we can write them as:

(x-3)(x-3)(x+3)=0

Multiplying the terms, we can find the polynomial:

$(x-3)(x-3)(x+3)=0\\(x(x-3)-3(x-3))(x+3)=0\\(x^2-3x-3x+9)(x+3)=0\\(x^2-6x+9)(x+3)=0\\x(x^2-6x+9)+3(x^2-6x+9)=0\\x^3-6x^2+9x+3x^2-18x+27=0\\x^3-6x^2+3x^2+9x-18x+27=0\\x^3-3x^2-9x+27=0$

So, cubic polynomial function with zeros 3,3 and -3 is $\mathbf{x^3-3x^2-9x+27=0}$

4 0

2 years ago

Answer this quickly plx

Natalija [7]

Answer:

10x+200 $\leq$ 375

Step-by-step explanation:

subtract 200 from both sides

10x $\leq$ 175

divide both sides by 10

x $\leq$ 17.5 cars

Jesse must wash atleast 17.5 cars to afford the bike.

5 0

2 years ago