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marshall27 [118]
3 years ago
5

What is the square root of 789?

Mathematics
1 answer:
Alexeev081 [22]3 years ago
5 0
No even square
28.089
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Two gongs strike at intervals of 24 and 40minutes respectively. At twist time will they strike together again if they start simu
solmaris [256]

Answer:

They will sound together at 2pm

Step-by-step explanation:

Now, the first thing we need to calculate is , in how many minutes will the two gongs strike together.

To be able to do this, we need to calculate the least common multiple of the two numbers 24 and 40

The lowest common multiple between both is 120

This means that the two gongs will sound together at exactly 120 minutes

Now since 1 hour is 60 minutes, this means that 120 minutes will be = 120/60 = 2 hours

Since they both sounded together at 12 noon and the next time they will be sounding is next two hours, their sounding time will thus be 12 noon + 2 hours = 2 pm

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3 years ago
Which of the following are true statements?
nasty-shy [4]

Answer:

I think the answer is B I guessed it.

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1 year ago
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there are 30 students in mr. Holland music class. If 30% of the students play in the school band, how many students in the class
MA_775_DIABLO [31]
9 students 30% ends up being .3%, multiply .3% by 30 students which equals 9.
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3 years ago
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You call the pizza store and find out that each
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The correct answer is 4
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If $-2 < x \le 3,$ then find all possible values of $5x + 1.$ Give your answer in interval notation.
kotegsom [21]

Answer: (-9, 16]

This is the interval from -9 to 16. Exclude -9 but include 16.

=====================================================

Work Shown:

The idea is to multiply all sides by 5, then add 1 to all sides

-2 < x \le 3

5(-2) < 5x \le 5(3)

-10 < 5x \le 15

-10+1 < 5x+1 \le 15+1

-9 < 5x+1 \le 16

This converts to the interval notation  (-9, 16]

note: a curved parenthesis means "do not include this value in the solution set"; while a square bracket has us include the value. So we exclude -9 and include 16.

3 0
3 years ago
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