Computer keyboard failures can be attributed to electrical defects or mechanical defects. A repair facility currently has 25 failed keyboards, 12 of which have electrical defects and 13 of which have mechanical defects. (a) How many ways are there to randomly select 6 of these keyboards for a thorough inspection (without regard to order)

Answer:

40 dollars

Step-by-step explanation:

25% of 16 minutes is 4 mins. 16+4=20 mins.

so 20*2=40 dollars

Answer:

F

Step-by-step explanation:

Answer:

(X)      0        1          2          3         4

P(X)   0.17   0.23    0.27    0.24    0.09

F(x)    0.17    0.04    0.65    0.91      1      

Step-by-step explanation:  

Given that;

(X)      0        1          2          3         4

P(X)   0.17   0.23    0.27    0.24    0.09

cumulative distribution function can be calculated by;  be cumulatively up the value of p(x) with the values before it;

so

x      F(x)

0     P(X = 0) = 0.17

1       P(X = 0) + P(X = 1) = 0.17 + 0.23 = 0.4

2      P(X = 0) + P(X = 1) + P(X = 2) = 0.17 + 0.23 + 0.27 = 0.65

3      P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.17 + 0.23 + 0.27 + 0.24 = 0.91

4      P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) = 0.17 + 0.23 + 0.27 + 0.24 + 0.09 = 1

Therefore, cumulative distribution function f(x) is;

(X)      0        1          2          3         4

P(X)   0.17   0.23    0.27    0.24    0.09

F(x)    0.17    0.04    0.65    0.91      1      

Answer: we multiply the second equation by -2. This property is the multiplication property of equality (1).  

Then, we add the two equations generated. (2) addition property of inequality.

Next, we divide both sides of the equation by 13. That is division property of inequality.  

Moreover, we substitute the value obtained for y in the first equation. This is substitution property of equality.  

Then, we simplify

Next, we add +3 to both sides of the equation in order to have an equation with only one side having a variable. That is addition property of equality.  

Lastly, we divide both sides of the equation by 4. This is division property of equality.

Step-by-step explanation:

Answer:

[tex] \frac{1}{2} {x}^{2} + 10 + \frac{1}{4} x[/tex]

Step-by-step explanation:

[tex] \frac{1}{2} {x}^{2} + 2 + \frac{1}{4} x + 8[/tex]

[tex]2 + 8 = 10[/tex]

[tex] \frac{1}{2} {x}^{2} + 10 + \frac{1}{4} x[/tex]

The answer that you are looking for is A. 40 to 27

Answer:

1/4 of a pound

Answer: one fourth of a pound

Step-by-step explanation:

so first you have to use a calulator last type = then u guet your answer 1/4 of a pound

Answer:

it is 100000000 i think i am not sure either

Answer:

C.

Step-by-step explanation

shes pulling RANDOM names. key word random, hope this helped

Answer:

30x - 28

Step-by-step explanation:

distribute

5(2x) - 5(4) -4(2) - 4(-5x)

10x - 20 - 8 + 20x

30x - 28

Answer: 98 meter below

15.24 meters below

122 meters above

1629 meters above

Step-by-step explanation:

Answer:

36

Step-by-step explanation:

It would only be 36 if they split the amount though

Based on a linear equation, we will see that they sold a total of 288 cookies.

An equation is an expression that shows the relationship between two or more numbers and variables.

A mathematical equation is a statement with two equal sides and an equal sign in between. An equation is, for instance, 4 + 6 = 10. Both 4 + 6 and 10 can be seen on the left and right sides of the equal sign, respectively.

We have been given that Phil and Matt sell cookies for $0.25 each,

Thus, if they sell x cookies, the total revenue is:

R(x) = $0.25x

Now, we know that they made a total of $72.00,

Therefore, we need to solve the linear equation:

$0.25x = $72.00x

= $72.00/$0.25 = 288

Hence, they sold 288 cookies.

Learn more about linear equations:

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Answer:

1/7

one over seven

Step-by-step explanation:

Answer:

c.

Step-by-step explanation:

4/3 pi r²

4/3 × 3.142 or 22/7 × 3.5²

Answer:

C. (1, 2)

Step-by-step explanation:

3x + 4y = 12

3(1) + 4(2) = 12

3 + 8 = 12

12 = 12

Answer:

I'm pretty sure the answer is B.

Step-by-step explanation:

Hope this helps u out!

Answer:

2 - v

Easy method: plug in v with some other number and see how it rolls out

Answer:

Hi how are you doing today Jasmine

Answer:

400> 360

Step-by-step explanation:

1/10 X 500 = 50

500 - 50 = 450

10% = 450/ 10 = 45

20% = 45 x 2 = 90

450 - 90 = 360

Chris does have enough 400> 360

Answer:

76.8

Step-by-step explanation:

Answer:

21 2121212121212121212121

Answer:

The literary magazine must pay $ 10 if poem is written by Gil, $ 20 if poem is written by Holly and $ 30 if poem is written by Ivan.

Step-by-step explanation:

The wage indicate the amount of money earned in hour for production of poems. If a literary magazine needs just one poem, then the cost will be the wage multiplied by time taken for the creation of the poem. There are three possibilities:

Gil

[tex]C = \left(10\,\frac{USD}{h})\cdot (1\,h)[/tex]

[tex]C = 10\,USD[/tex]

Holly

[tex]C = \left(10\,\frac{USD}{h}\right)\cdot (2\,h)[/tex]

[tex]C = 20\,USD[/tex]

Ivan

[tex]C = \left(10\,\frac{USD}{h}\right)\cdot (3\,h)[/tex]

[tex]C = 30\,USD[/tex]

The literary magazine must pay $ 10 if poem is written by Gil, $ 20 if poem is written by Holly and $ 30 if poem is written by Ivan.

Answer: Here's what I got:

Step-by-step explanation:

I don't know if this what you wanted:

The value of 4ˣ for x = -2  and x = 3 is 0.0625 and 64 respectively.

The formula for an exponential function is f (x) = aˣ, where x is a variable and a is a constant that serves as the function's base and must be bigger than 0. The transcendental number e, or roughly 2.71828, is the most often used exponential function basis.

Given function 4ˣ

when x = -2

4ˣ = 4⁻²

using a⁻ⁿ = 1/aⁿ

4⁻² = 1/4² = 1/16

4⁻² = 0.0625

and x = 3

4ˣ = 4³

4³ = 4 x 4 x 4 = 64

Hence the values are 0.0625 and 64 for x = -2 and 3.

Learn more about exponential function;

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Answer:

a toxin or other foreign substance which induces an immune response in the body, especially the production of antibodies.

Answer:

$27 is left over.

Step-by-step explanation:

If you divide 36 by 4, you can find out what 1/4 of 36 is. 36/4 = 9

This $9 is how much he gave away to his brother. In order to find out how much he has leftover for himself, subtract the $9 from the $36.

36-9 = 27.

Therefore, Aaron has $27 leftover for himself.

Answer:

12 months

Step-by-step explanation:

Set up a formula; 75 + 15x = 255

Now, solve for x, which is number of months.

subtract 75 from both sides.

15x = 180

divide both sides by 15.

x = 12

x is equal to 12 - she would have had to have the subscription for 12 months to spend 255$.