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2 years ago

You purchase 3 items for $4.23. About how much did you spend? $15 $10 $12 $13

Mathematics

1 answer:

anzhelika [568]2 years ago

7 0

Answer

Step-by-step explanation:

4+4+4=12+.23+.23+.23=12.69 and round up to 13

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Solve the system of equations.<br> y = -6x + 9<br> y = -3x + 3

Nady [450]

What do the directions tell you to do? also did you take notes? refer back to them to help you understand more.

4 0

2 years ago

What fraction equal to 1/2 with a denominator of 6 and a fraction equal to 1/3 with a denominator of 6. Then add the fractions.

horrorfan [7]

Answer:

5/6

Step-by-step explanation:

1/2 + 1/3 need a common denominator to add them up.

1/2 is the same as 3/6.

1/3 is the sane as 2/6.

3/6 + 2/6

Add the tops, but keep the same denominator.

3/6 + 2/6 = 5/6

5/6 cannot be simplified, so that's the answer. That's how you do it! Hope this helps!

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2 years ago

Find the mean, variance, and standard deviation of the binomial distribution with the given values of n and p. , The mean, ,

klemol [59]

Complete Question

Find the mean, variance, and standard deviation of the binomial distribution with the given values of n and p. , The mean, , is nothing. (Round to the nearest tenth as needed.)

p = 0.6 n = 18

Answer:

The mean $\mu = 10.5$

The standard deviation $\sigma = 2.08$

The variance $var = 4.32$

Step-by-step explanation:

From the question we are told that

The probability of success is $p = 0.6$

The sample size is $n = 18$

Generally given that the distribution is binomial, then the probability of failure is mathematically represented as

$q = 1- p$

substituting values

$q = 1- 0.6$

$q =0.4$

Generally the mean is mathematically evaluated as

$\mu = np$

substituting values

$\mu = 18 * 0.6$

$\mu = 10.5$

The standard deviation is evaluated as

$\sigma = \sqrt{npq}$

substituting values

$\sigma = \sqrt{18 * 0.6 * 0.4}$

$\sigma = 2.08$

The variance is evaluated as

$var = \sigma^2$

substituting value

$var = 2.08^2$

$var = 4.32$

4 0

3 years ago

Best answer gets brainliest

tankabanditka [31]

I hope this is helpful.

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2 years ago

The Height of a ramp is 11 inches and the length of its slanted side it 61 inches. What is the length of the base of the ramp?

o-na [289]

Triangle:

39 degrees, 33 degrees, 108 degrees

Side opposite the 108 degrees is 360 feet.

length asked for is d

Hope this helped you! Brainliest? :)

5 0

3 years ago