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ivanzaharov [21]
3 years ago
8

A school has 320 girls and 250 boys.

Mathematics
1 answer:
miss Akunina [59]3 years ago
4 0
320 girls x 0.2 lh probability = 64 lhg
250 boys x 0.1 lh probability = 25 lhb
Total is the sum of the two 64+25 = 89
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G(x)= l2xl +2<br><br> find domain and range
Romashka [77]

The domain of the function g(x)=l2xl +2 is all real numbers and the range is from (0,∞).

Given g(x)= l2xl +2

First of all we know that modulas gives two values for x<0 and x>=0.

The function g(x) if opened gives two values.

for x>=0 g(x)=2x+2

for x<0 g(x)=-2x+2

because we have not told about the description about x so we can put any value in the function.

So the domain is all real numbers.

Now when we take g(x)=2x+2 for x>=0

putting x=0 we get 2 and rest are positive values so the value of g(x) keeps increasing as we increase the value of x. So here range is [2,∞).

Now take g(x)=-2x+2 for x<0

putting smallest number starting from zero but not 0 we will get a number near to 0 but not zero and because when a negative number multiplies with -2 it becomes positive and increase the value of g(x) so here the range becomes (0,∞).

When we talk about overall range it will be [2,∞) ∪(0,∞)

it will be (0,∞).

Hence the domain of the function g(x) is all real numbers and range is from 0 to infinity.

Learn more about domain and range at brainly.com/question/2264373

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Answer:

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Step-by-step explanation:


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Snezhnost [94]

Answer:

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now by factorization;

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Now, x+12 = 0 and x-2 = 0

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x= -12, 2

Thus the values for x is -12 and 2.

8 0
4 years ago
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