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2 years ago

15

Help me wit dis question I’ll give you brainliest

2 answers:

Mice21 [21]2 years ago

4 0

Answer:

She'll find 6 items in 3/4 of an hour.

Step-by-step explanation:

First, change 3/4 to 6/8. Then, do you 6/8 divided by 1/8 to get your answer of 6 items in 3/4 of an hour.

Vedmedyk [2.9K]2 years ago

3 0

Answer:

6

Step-by-step explanation:

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What is equivalent to the square root of -27

lions [1.4K]

For the square root of a negative number, you would have to get into imaginary numbers. If you haven't learned about it yet, then the answer would be no real solutions. But if you have, here's how to solve it:

First, identify that 9 x 3 = 27. To after taking the square root, you will get 3√3 (Since the square root of 9 is 3 and there's no square root of 3, so leave it in the √)

However, since it is a negative number, you will have to include the letter i in the answer. i represents the imaginary part of it since you can't have a negative number in the square root.

So your answer will look like 3i√3.

3 0

2 years ago

With direct variation, if you increase the input, the output

sladkih [1.3K]

Increases proportionally. (C)

4 0

3 years ago

3 times the sum of a number and 2

kompoz [17]

Answer:

is this actually a question

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

There are 9 balls in a hat .The balls are numbered 1-9 you need to choose 3 of the balls . How many possible combinations are th

Virty [35]

Answer:

84

Step-by-step explanation:

Combinations

nCr

n (objects) = 9

r (sample) = 3

9C3

n! / r! (n – r)!

9! / 3! (9 – 3)!=

9! / (3! * 6!)=

9*8*7*6!/ (3! * 6!)=

6! cancels out

9*8*7/3*2*1=

3*4*7=

12*7=

84

3 0

1 year ago

ten selected students took a. altitude test out of the total score of 100 these students scored 60,50,50,70,40,80,65,55,50 and 9

ira [324]

<u>Answer:</u>

• mean = 61

• mode = 50

• median = 57.5

<u>Step-by-step explanation:</u>

• The mean is calculated by adding all the values together, and dividing the result by the number of values.

∴ mean = $\frac{60 + 50 + 50 + 70 + 40 + 80 + 65 + 55 + 50 + 90}{10}$

⇒ mean = $\frac{610}{10}$

⇒ mean = 61

• The mode of a set of values is the value that is the most common (has highest frequency) among them.

50 is the most common value.

∴ mode = 50

• The median is the middle-value of a set of ordered values.

∴ We have to first rearrange the set:

⇒ 40, 50, 50, 50, 55, 60, 65, 70, 80, 90

Now we need to find the middlemost value:

Since we have 10 values, which is an even number, we have to use the formula:

median = $\frac{(n/2)^{th} \space\ term \space\ + \space\ [(n/2) + 1]^{th} \space\ term }{2}$

where n is the number of values.

∴ median = $\frac{(10/2)^{th} \space\ term \space\ + \space\ [(10/2) + 1]^{th} \space\ term }{2}$

⇒ median = $\frac{5^{th} \space\ term \space\ + \space\ 6^{th} \space\ term }{2}$

The 5th and 6th terms in our ordered series are 55 and 60 respectively.

∴ median = $\frac{55 + 60}{2}$

⇒ median = 57.5

5 0

1 year ago