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Charra [1.4K]
3 years ago
8

Which expression is equivalent to this polynomial expression?

Mathematics
1 answer:
Mandarinka [93]3 years ago
5 0
Answer:

(D) 8x^2y^2 - 15x^2y + xy^2 + 5y

Explanation:

Step one : open brackets
Step two: solve

#note
If there is a minus sign outside the bracket, all terms inside are multiplied by -1 when the bracket is opened.

Answered by GAUTHMATH
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The lifespan, in years, of a certain computer is exponentially distributed. The probability that its lifespan exceeds four years
kompoz [17]

Answer:

The correct answer is "0.300993e^{-0.300993x}".

Step-by-step explanation:

According to the question,

⇒ P(x>4)=0.3

We know that,

⇒ P(X > x) = e^{(-\lambda\times x)}

⇒     e^{(-\lambda\times 4)} = 0.3

∵ \lambda = 0.300993

Now,

⇒ f(x) = \lambda e^{-\lambda x}

By putting the value, we get

           =0.300993e^{-0.300993x}

3 0
3 years ago
Simplify the expression.<br><br><br><br> 9y^2−25/9y^2−30y+25
mezya [45]

Answer:

Step-by-step explanation:

56y^2/9-30y+25

4 0
3 years ago
Simplify. 32 + 16 + 8 A) 4 + 6 2 B) 6 + 4 2 C) 10 + 2 D) 10 2
Ann [662]

Answer:

its 56 if you simplify 32 + 16 + 8

6 0
4 years ago
How do you simplify -14/63
leonid [27]
14 = 7*2
63 = 7*9

14      7 * 2                                  2          2
---- =  -------    7/7 =1, so  = 1 * ------ =   ----
63      7 * 9                                  9          9
7 0
3 years ago
Select the statement that describes this expression: 10 + fraction 1 over 4x (5 + 3) − 3.
Valentin [98]

Answer:

10 more than fraction 1 over 4 of the sum of 5 and 3, then subtract 3

Step-by-step explanation:

Can't be the other ones

6 0
3 years ago
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