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Lelu [443]
3 years ago
6

1. Find the LCM of 12 and 9NEED HELP ASAP​

Mathematics
1 answer:
kondaur [170]3 years ago
7 0

Answer:

its 36

Step-by-step explanation:

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If y=15 and x=-9 what is the new value of y
zalisa [80]

Answer:

15

Step-by-step explanation:

You seem to say that y=15, so, wouldn't that be the new value?

5 0
3 years ago
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A test has a 50 questions. Two are essay and the remaining are multiple choice and fill in the blank at a 5:1 ratio respectively
o-na [289]

Answer:If the ratio is 5:1 doesn’t mean that it will be in order but there will be 8 fill in the blank and 40 multiple choice

Step-by-step explanation:

8 0
3 years ago
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Calculate the approximate probability that at least 2 children have been diagnosed with ASD among the 200 selected children.
mixas84 [53]

Answer:

The approximate probability that at least 2 children have been diagnosed with ASD among the 200 selected children is

0.01 or 1%.

Step-by-step explanation:

Number of selected children = 200

The probability of no child been diagnosed with ASD = P(None) = 198/200 = 0.99

Therefore, the probability of at least two children been diagnosed with ASD = 1 - 0.99 = 0.01.

This is the same as:

If 2 children have been diagnosed with ASD,

therefore, the approximate probability that at least 2 children have been diagnosed is:

2/200 = 0.01.  This value is equal to 1%.

The above are summed up in:

The probability of at least one = 1/200 = 0.05

Therefore, the probability of at least two = 0.05 * 2 = 0.01

b) Generally, to find the probability of at least one event happening, we calculate the probability of none and then subtract that result from 1. That is, P(at least one) = 1 – P(none).  For two events happening, the sum of the probability of at least one in two places is deducted from 1 to get the probability of at least two.

4 0
3 years ago
Which expression is equivalent to x² + 2x + 2?
melisa1 [442]

Answer:

(x+1-i)(x+1+i)

Step-by-step explanation:

(x+1-i)(x+1+i)\\\\=(x+1)^2 -i^2~~~~~~~~~~~~~;[a^2 -b^2 = (a+b)(a-b)]\\\\=x^2 +2x +1 -(-1)\\\\=x^2 +2x +1+1\\\\=x^2 +2x +2

4 0
2 years ago
What is the volume of the cuboid (the box) in this figure? (no need to enter the units)
poizon [28]

Answer:

220 cm

Step-by-step explanation:

Multiply length x width x height

22 x 5 x 2

110 x 2

220 cm

6 0
3 years ago
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