3 years ago

What is the value of x?

1 answer:

8 0

The external angle is equal to the sum of the opposite internal angles.
.. 6x +1 = (2x +10) +79
.. 4x = 88 . . . . . . . . . . . . . subtract 2x+1
.. x = 22

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Timed Test Please Help.

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Answer:

6.5 × 10¹¹

Step-by-step explanation:

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3 years ago

The molarity of a solute in solution is defined to be the number of moles of solute per liter of solution (1 mole = 6.02 × 1023

KengaRu [80]

Answer:

a) 0.65

b) 0.1581

Step-by-step explanation:

We are given the following in the question:

Distribution of X:

Mean = 0.125

Standard deviation = 0.05

Distribution of Y:

Mean = 0.350

Standard deviation = 0.10

Solution:

$M = X + 1.5Y$

a) mean of M

$\mu_M = \mu_X + 1.5(\mu_Y) = 0.125 + 1.5(0.350) = 0.65$

b) standard deviation of M

If X and Y are independent then,

$Var(X+Y) = Var(X) + Var(Y)\\Var)aX) = a^2Var(X)$

$Var(M) = Var(X+1.5Y)\\Var(M) =Var(X) + (1.5)^2Var(Y)\\Var(M) = (0.05)^2 + (1.5)^2(0.10)^2 = 0.025$

Standard deviation of M =

$=\sqrt{Var(M)} = \sqrt{0.025} = 0.1581$

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3 years ago

Can you check my answers to math?

Dominik [7]

Yes this is correct you go u have the right answer as far as i know and i see

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Answer:

Answer is in the attachment

Step-by-step explanation:

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ANSWER:
1. b
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3. d
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