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3 years ago

9

What is the probability of only 2 answers being false, in a 4-question T/F quiz?

1 answer:

Y_Kistochka [10]3 years ago

8 0

After my thorough researching, the probability of only two answers being false, in a 4-question T/F quiz is 1/2 or .5. Then, the correct answer to the following given statement or question stated above is the probability of 1/2 or 0.5.

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Need help on this question. The first and second dropdown box has the numbers 1, 2, 3, and 4. I believe that the 3rd box is y-ax

ELEN [110]

I think it is two up and two right lol if that answers your question

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4 years ago

The length and width of a rectangle are measured as 55 cm and 49 cm, respectively, with an error in measurement of at most 0.1 c

valentina_108 [34]

Answer:

The maximum error in the calculated area of the rectangle is $10.4 \:cm^2$

Step-by-step explanation:

The area of a rectangle with length $L$ and width $W$ is $A= L\cdot W$ so the differential of <em>A</em> is

$dA=\frac{\partial A}{\partial L} \Delta L+\frac{\partial A}{\partial W} \Delta W$

$\frac{\partial A}{\partial L} = W\\\frac{\partial A}{\partial W}=L$ so

$dA=W\Delta L+L \Delta W$

We know that each error is at most 0.1 cm, we have $|\Delta L|\leq 0.1$ , $|\Delta W|\leq 0.1$ . To find the maximum error in the calculated area of the rectangle we take $\Delta L = 0.1$ , $\Delta W = 0.1$ and $L=55$ , $W=49$ . This gives

$dA=49\cdot 0.1+55 \cdot 0.1$

$dA=10.4$

Thus the maximum error in the calculated area of the rectangle is $10.4 \:cm^2$

4 0

3 years ago

A TV is selling at a discount<br> of 25% off the orginal prive?

KonstantinChe [14]

Answer:

What you do is you take the original price of the TV and times by 25% then divide by 100.-

Step-by-step explanation:

5 0

3 years ago

The following function represents exponential growth or decay.

Lerok [7]

Answer:

a) The initial quantity is 2.9.

b) The initial quantity is 2.9.

c) The multiplier is 1.05 > 1, and thus, the quantity is growing.

Step-by-step explanation:

Exponential equations:

Have the following format:

$A(t) = A(0)(k)^t$

In which A(0) is the initial amount and k is the multiplier.

If k > 0, the quantity is growing.

If k < 0, the quintity is decaying.

In this question:

$P(t) = 2.9(1.05)^t$

a, b. The initial quantity is

P(0). So

$P(0) = 2.9(1.05)^0 = 2.9*1 = 2.9$

The initial quantity is 2.9.

c. Is the quantity growing or decaying?

The multiplier is 1.05 > 1, and thus, the quantity is growing.

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3 years ago

Lesson Practice question Preston adopt a cat from a rescue shelter he needs to buy some cat litter so he compares prices at diff

Fittoniya [83]

Answer:

0.43

Step-by-step explanation:

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3 years ago

Read 2 more answers