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3 years ago

At Farmer Jones Market, bananas cost $.80 per pound. At Farmer Garcia's

Mathematics

1 answer:

e-lub [12.9K]3 years ago

4 0

divide $4.50 by 5 .......

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A test consists of 100 multiple choice questions, each with five possible answers, only one of which is correct. Find the mean a

TEA [102]

Answer: Mean = 20 and standard deviation = 4

Step-by-step explanation:

Let x represents the success of getting the correct answer.

Here, the total number of trials(n) = 100

The probability of getting the correct answer, p = 1/5

Thus, the mean of the number of correct answer,

$\mu_x= np$

$\mu_x= 100\times 1/5$

$\mu_x= 20$

Now, the standard deviation, $\sigma_x= \sqrt{n\times p\times (1-p)}$

$\sigma_x= \sqrt{100\times 1/5\times 4/5}$

$\sigma_x= \sqrt{16}$

$\sigma_x= 4$

Thus, First option is correct.

6 0

4 years ago

Indicate below whether the equation in the box is true or false 1/6 = to 6/12

Vitek1552 [10]

Answer: 1/6 is not equal to 6/12 because 6/12 is 1/2 and 1/6 is less

Step-by-step explanation:

6 0

3 years ago

Find f(x) and g(x) so that the function can be described as y = f(g(x)). (1 point) y = Four divided by x squared. + 9

wlad13 [49]

Answer:

ind f(x) and g(x) so that the function can be described as y = f(g(x)). (1 point) y = Four divided by x squared. + 9

8 0

2 years ago

HELP PLEASE!!!!!!!!

Luba_88 [7]

Answer:

AOB = 40 degrees

Step-by-step explanation:

The two smaller angles, AOB and BOC, add up to form AOC. That means that the angles of AOB and BOC sum up to the angle of AOC

$3x+4+8x-28=108\\11x=132\\x = 12\\\\3(12)+4=AOB\\AOB = 40 degrees$

8 0

3 years ago

Read 2 more answers

Find the slope in (-2,8) and (1,6)

Salsk061 [2.6K]

Formula for slope: $\frac{y2 - y1}{x2 - x1}$

y₂: 6

y₁: 8

x₂: 1

x₁: -2

Plug them into the slope equation:

$\frac{6 - 8}{1 - (-2)}$

--> $\frac{-2}{1 + 2}$

---> $-\frac{2}{3}$

The slope is $-\frac{2}{3}$ .

8 0

3 years ago

Read 2 more answers