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pochemuha
3 years ago
6

Please help. Due in 30 minutes, whoever answers 1st I'll mark them brainlist

Mathematics
1 answer:
abruzzese [7]3 years ago
3 0

Answer:

the E is the same as the circles

Step-by-step explanation:

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Evaluate: 3x^2 + y when x=1 and y=-3 *
Sliva [168]

Answer:

0

Step-by-step explanation:

x=1 and y=-3

so 3x^2 + y = 3*1^2 + (-3)

= 3* 1 -3

=0

4 0
3 years ago
9. The probability of a child being born with light-colored eyes to two particular parents is 0.25.
slavikrds [6]

If X is a random variable representing the number of children that end up having light-colored eyes, then X follows a binomial distribution with success probability p = 0.25 and number of trials n = 5.

The variance of a binomial distribution with these parameters is n p (1 - p), so the variance in this case would be

5 • 0.25 • (1 - 0.25) = 0.9375 ≈ 0.9

4 0
2 years ago
The sum of reciprocals of rehman’s ages 3 years ago and 5 years from now is 1/3. Find his present age
Afina-wow [57]

Answer:

His age is 7 years.

Step-by-step explanation:

Let Rehman's  present age be x years.

1 / (x - 3) + 1 /(x + 5) = 1/3

Multiply through by the LCD 3(x - 3)(x + 5):

3(x + 5) + 3(x - 3) = (x + 5)(x - 3)

3x + 15 + 3x - 9 = x^2 + 2x - 15

x^2 + 2x - 6x - 30 + 9 = 0

x^2 - 4x - 21 = 0

(x - 7)(x + 3) = 0

x = 7  (answer).

6 0
3 years ago
What is the answer of This,this is is rational numbers 3.3(6)=
Svetach [21]

Answer:

19.8

Step-by-step explanation:

Since 3.3*6 is 19.8.

3 0
3 years ago
Read 2 more answers
(8,6) for 2 + y = x and -2y + 20 = x <br> Can someone help me please.
ehidna [41]

Answer:

3939π

Step-by-step explanation:

The new system is not the only one who thinks that he was a member of the American to the right of way of the most important things in life is to make sure the first half of an old friend who was in the the ↕️

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