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3 years ago

Elizabeth rolls a die 108 times. How many times can she expect to roll a 2? A. 54 B. 18 C. 36 D. 24

Mathematics

2 answers:

gregori [183]3 years ago

6 0

As there are 6 numbers on a die you would expect to 2 roll about 108/6 = 18 times

B

Gala2k [10]3 years ago

5 0

Answer is B. 54 times

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o-na [289]

It’s the second one. Pick the 2nd one

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2 years ago

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Please try to give me the answers

gladu [14]

Answer:

a = 1, b = 2, c = 3

Step-by-step explanation:

$a + \frac{1}{b + \frac{1}{c} } = \frac{10}{7} \\ \\ a + \frac{1}{b + \frac{1}{c} } = 1 + \frac{3}{7} \\ \\ a + \frac{1}{b + \frac{1}{c} } = 1 + \frac{1}{\frac{7}{3} } \\ \\ a + \frac{1}{b + \frac{1}{c} } = 1 + \frac{1}{2 + \frac{1}{3} } \\ \\ equating \: like \: terms \: on \: both \: sides \\ \\ a = 1 \\ \\ b = 2 \\ \\ c = 3$

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2 years ago

Peter has 3200 yards of fencing to enclose a rectangular area. Find the dimensions of the rectangle that maximize the enclosed a

salantis [7]

Answer:

$A = 640000\,yd^{2}$

Step-by-step explanation:

Expression for the rectangular area and perimeter are, respectively:

$A (x,y) = x\cdot y$

$3200\,yd = 2\cdot (x+y)$

After some algebraic manipulation, area expression can be reduce to an one-variable form:

$y = 1600 -x$

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The first derivative of the previous equation is:

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The second derivative is:

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According to the Second Derivative Test, the critical value found in previous steps is a maximum. Then:

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3 years ago

Read 2 more answers

Janet borrowed $5,500 from the bank at an interest rate of 7.5% for one year Assuming she pays it back on time how much interest

Dominik [7]

$5912.50. To work out one percent of 5500 you divide it by 100 which makes 55. You then times that by 7.5 which makes 412.50. Add that onto 5500 and you get the answer.

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3 years ago

I HAVE A MATH TEST PLZ HELP I'M GIVING OUT 50 POINTS PLZ S.O.S I HAVE MATH

Nady [450]

Answer:

Graph included as picture

Step-by-step explanation:

To solve this, plot the given points on the graph

Draw a line through them.

Now select two of those values and we'll find the rate of change.

We'll be using (1,-1) and (3,3)

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Just substitute for the variables we know

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To solve for b we can plug in the values we do have which would be (x,y) of (3,6)

6 = 2(3) + b

Now solve

6 = 6 + b

6 (-6) = 6 (-6) + b

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b = 0

This mean that the y-intercept will be on (0,0)

Plot that point

Now we finish the formula

y = 2x + 0

Connect the dots, make sure the line continues on both of them past the dots and now you have your graph!

I've included a picture of the graph for your reference. I hope this helps, don't be afraid to reach out with further questions!

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