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zhenek [66]
3 years ago
10

If two perpendicular then they intersect to form _____angles.

Mathematics
1 answer:
muminat3 years ago
4 0

right angles or 90º angles

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For this set of data,<br> 89, 88, 84, 87, 89, 84, 84, 83, 85, 89, 84<br> Find the standard deviation
Ilia_Sergeevich [38]

Answer: 2.2962419891482

Step-by-step explanation: First get the mean of the numbers or the average

the mean in this case is 86

then subtract each number by the mean of 86

the numbers then become : 3, 2, -2, 1, 3, -2, -2, -3, -1, 3, -2

then square all the numbers to get : 9, 4, 4, 1, 9, 4, -4, 9, 1, 9, 4

then find the mean of those numbers which is 5.2727272727273

then find the square root of this number to find the standard deviation

2.2962419891482 is the standard deviation

hope this helps mark me brainliest if it helped

6 0
3 years ago
Enter the value of p so the expression 5/6 - 1/3n is equivalent to p(5-2n)
Karo-lina-s [1.5K]

Answer:

I guess it's 1/6

Step-by-step explanation:

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4 0
2 years ago
I NEED THIS ASAP Are two regular hexagons always congruent? Explain your answer
Scorpion4ik [409]
The two regular hexagons could have different side lengths, so they will not necessarily always be congruent, but they will always be similar.
8 0
3 years ago
Read 2 more answers
Find the derivative of the function given by f(x)=(√(x^2+1))/x
True [87]

Answer:

Find the derivative of the function given by f(x)=(√(x^2+1))/x

Step-by-step explanation:

7 0
2 years ago
One bricklayer can build a wall in 6 hours. Another bricklayer could build the same wall in 4 hours. If they work together, how
Natasha2012 [34]

Answer:

they work together, it will take 2.4 hours to build the wall.

Step-by-step explanation:

One bricklayer can build a wall in 6 hours.

One hour work = \frac{1}{6}

Another bricklayer can build the same wall in 4 hours.

One hour work = \frac{1}{4}

They can together, how long will take them to build the wall.

Let's take "t" the time taken to build the wall.

The sum of their work rate = 1 (To build the wall)

\frac{t}{6} + \frac{t}{4} = 1

Now we have to solve this equation. Take LCD of 6 and 4.

The LCD (least common divisor) of 6 and 4 is 12.

\frac{2t + 3t}{12} = 1

5t = 12*1

5t = 12

Dividing both sides by 5, we get

t = \frac{12}{5}

t = 2.4 hours.

So, they work together, it will take 2.4 hours to build the wall.

6 0
3 years ago
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