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Sati [7]
3 years ago
9

If f(x)=cosx, then f(x+ pi/2) is equal to

Mathematics
1 answer:
weqwewe [10]3 years ago
8 0
The answer must be - cospi/2 which is not available in the option
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Evaluate the expression for a = 3, b =12, and c = 4. <br><br> 8ab/2bc<br><br> PLZ I NEED HELP!!!
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8(3)(12) is 288. 2(12)(4) is 96. 288/96 is 3. Answer is 3
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Amy drove her car 253 Miles. The car used 10.07 gallons of gasoline on the drive. Estimate the cars gasoline mileage in miles pe
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Suppose that each child born is equally likely to be a boy or a girl. Consider a family with exactly three children. Let BBG ind
Gemiola [76]

Answer:

(a)

S = \{GGG, GGB, GBG, GBB, BBG, BGB, BGG, BBB\}

(b)

i.

1\ girl = \{GBB, BBG, BGB\}

P(1\ girl) = 0.375

ii.

Atleast\ 2 \ girls = \{GGG, GGB, GBG, BGG\}

P(Atleast\ 2 \ girls) = 0.5

iii.

No\ girl = \{BBB\}

P(No\ girl) = 0.125

Step-by-step explanation:

Given

Children = 3

B = Boys

G = Girls

Solving (a): List all possible elements using set-roster notation.

The possible elements are:

S = \{GGG, GGB, GBG, GBB, BBG, BGB, BGG, BBB\}

And the number of elements are:

n(S) = 8

Solving (bi) Exactly 1 girl

From the list of possible elements, we have:

1\ girl = \{GBB, BBG, BGB\}

And the number of the list is;

n(1\ girl) = 3

The probability is calculated as;

P(1\ girl) = \frac{n(1\ girl)}{n(S)}

P(1\ girl) = \frac{3}{8}

P(1\ girl) = 0.375

Solving (bi) At least 2 are girls

From the list of possible elements, we have:

Atleast\ 2 \ girls = \{GGG, GGB, GBG, BGG\}

And the number of the list is;

n(Atleast\ 2 \ girls) = 4

The probability is calculated as;

P(Atleast\ 2 \ girls) = \frac{n(Atleast\ 2 \ girls)}{n(S)}

P(Atleast\ 2 \ girls) = \frac{4}{8}

P(Atleast\ 2 \ girls) = 0.5

Solving (biii) No girl

From the list of possible elements, we have:

No\ girl = \{BBB\}

And the number of the list is;

n(No\ girl) = 1

The probability is calculated as;

P(No\ girl) = \frac{n(No\ girl)}{n(S)}

P(No\ girl) = \frac{1}{8}

P(No\ girl) = 0.125

7 0
3 years ago
What steps are used to solve this equation?<br> X/2 = 7
Luda [366]

Answer:

14 because 2×7 is 14 and 14 can go into 2 7times

3 0
3 years ago
Please help ASAP!!!!!
belka [17]
I think the answer is the one in the bottom right. 
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3 years ago
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