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2 years ago

When using blocking to deal with extraneous factors in an experiment, a

Mathematics

1 answer:

astra-53 [7]2 years ago

3 0

Answer:

false

Step-by-step explanation:

i just took the test and guessed on it to help u ( i got it right) :p

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Dilbert invests a total of $33 000 in two accounts paying 6% and 10\% interest, respectively. How much was invested in each acco

vladimir1956 [14]

Answer:

In the 6% account, 13,000 was deposited

In the 10% account, 20,000 was deposited

Step-by-step explanation:

Here, we are interested in calculating how much invested in each account

Let the amount invested be $x and $y

Mathematically;

x + y = 33,000 ••••(i)

Now let’s work with interest

6% of x + 10% of y = 2780

6/100 * x + 10/100 * y = 2780

Multiply through by 100

6x + 10y = 278000 •••••••••(ii)

From i, x = 33,000 -y

Put this into ii

6(33,000 -y) + 10y = 278000

198,000-6y + 10y = 278000

4y = 80000

y = 80,000/4 = 20,000

But x = 33,000 -y = 33,000 -20,000 = 13,000

3 0

4 years ago

Convert the angle 17pi/12 radians to degrees.

Alexxandr [17]

Answer: 255°

Step-by-step explanation:

To convert an angle in radians to degree, we've to multiply it by 180/π. In this case, converting the angle 17pi/12 radians to degrees will be:

= 17π/12 × 180/π

= 17 × 15°

= 255°

The answer is 255°.

7 0

3 years ago

Suppose that the number of calls coming per minute into an airline reservation center follows a Poisson distribution. Assume tha

dusya [7]

Answer:

0.0497 is the required probability.

Step-by-step explanation:

We are given the following information in the question:

Mean number of calls = 3 calls per minute

The number of calls coming per minute is following a Poisson distribution.

Formula:

$P(X =k) = \displaystyle\frac{\lambda^k e^{-\lambda}}{k!}\\\\ \lambda \text{ is the mean of the distribution}$

We have to evaluate

$P( x =0) = \displaystyle\frac{\lambda^k e^{-\lambda}}{k!}\\\\P(x = 0) = \frac{3^0e^{-3}}{0!} = 0.0497$

0.0497 is the probability that no calls are received in a given one-minute period.

7 0

3 years ago

Solve for absolute value: 3(r+1)+2>-7

Dahasolnce [82]

Answer:

3(r+1)+2>|-7|

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

What is 89,659rounding to the nearest hundred thousand

algol [13]

89,659 rounded to the nearest hundred thousand = 100,000

3 0

3 years ago