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4 years ago

How to solve question 15 and 16

Mathematics

1 answer:

Svet_ta [14]4 years ago

5 0

Answer:

Step-by-step explanation:

16 is especially important, so start with it.

F = 5/9 * C + 32 Subtract 32 from both sides.

F - 32 = 5/9 C + 32 - 32 Combine

F - 32 = 5/9 C Multiply both sides by 9/5

9/5(F - 32) = 9/5 * 5/9 C Combine

9/5(F - 32) = C

Fifteen

V = pi * r^2 * h / 3 Multiply both sides by 3

3V = 3*pi * r^2 * h/ 3 Combine

3V = pi * r^2 * h Divide by pi

3V/(pi ) = r^2 * h Divide by r^2

3V / (pi * r^2) = r^2 * h / r^2 Combine

3V / (pi * r^2) = h

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3 years ago

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3 years ago

The number of flaws in a certain type of lumber follows a Poisson distribution with a rate of 0.45 per linear meter. What is the

lbvjy [14]

Answer:

So, the probability is P=0.0097.

Step-by-step explanation:

We know that the number of flaws in a certain type of lumber follows a Poisson distribution with a rate of 0.45 per linear meter.

We conclude that λ=0.45.

We use the Poisson formula:

$\boxed{P(X=k)=\frac{\lambda^k\cdot e^{-\lambda}}{k!}}$

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4 years ago

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alexandr402 [8]

Answer:

Question 3: $4x^3+x^2-12x-3$

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Step-by-step explanation:

<u>Question 3</u>

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Also note the distributive property:

$(a+b)(n+p)=an+ap+bn+bp$

Now, lets multiply:

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<u>Question 4</u>

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This is the correct answer.

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If we put x = 0, the function is undefined. So x CANNOT be 0.

Third answer choice is right.

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3 years ago

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