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2 years ago

K(x) = X +-6 k(3) =

Mathematics

2 answers:

mina [271]2 years ago

7 0

Answer:

-3

Step-by-step explanation:

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vampirchik [111]2 years ago

3 0

Answer:

$x=-\frac{18k}{k-1};\quad \:k\ne \:1$

Step-by-step explanation:

$\mathrm{Divide\:both\:sides\:by\:}k-1;\quad \:k\ne \:1$

$\frac{x\left(k-1\right)}{k-1}=\frac{-18k}{k-1};\quad \:k\ne \:1$

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P(4 and C) I need help asap

Nina [5.8K]

Answer:

1/48

Step-by-step explanation:

P(4 and C) = P(4) × P(C)

= ⅛ × ⅙

= 1/48

3 0

2 years ago

A restaurant owner is interested in the proportion of his customers who order dessert. He looks at 65 randomly selected receipts

xxTIMURxx [149]

Answer:

c. Population

Step-by-step explanation:

All customers who come to the restaurant are the population.

The 65 randomly selected customers are the sample.

The correct answer is:

c. Population

4 0

3 years ago

Add: (3x2 - 5x + 6) + (9 - 8x - 4x2) A) 12x2 - 13x + 2 B) 7x2 + 3x - 3 C) 7x2 - 13x + 15 D) -x2 - 13x + 15

kati45 [8]

Answer:

Step-by-step explanation:

So we have the expression:

$(3x^2-5x+6)+(9-8x-4x^2)$

Combine like terms:

$=(3x^2-4x^2)+(-5x-8x)+(6+9)$

Add or subtract:

$=(-1x^2)+(-13x)+(15)$

Simplify:

$=-x^2-13x+15$

Our answer is D

4 0

2 years ago

A sociologist recently conducted a survey of senior citizens who have net worths too high to qualify for Medicaid but have no pr

hjlf

Answer:

a) $s= 9.74$

D. 9.74

b) $Median= 74$

B. 74

Step-by-step explanation:

Part a

We have the following dataset given:

69 74 75 62 70 93 64 69 61 88 67 77 87 90 66 91 77 63 82 82 71 74 76 65 83

We can begin calculating the sample mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X = 75.04$

Now we can calculate the sample deviation with the following formula:

$s =\sqrt{\frac{\sum_{i=1}^n (X_i-\bar X)^2}{n-1}}$

And after replace we got:

$s= 9.74$

Part b

For this case we need to sort the value on increasing way:

[1] 61 62 63 64 65 66 67 69 69 70 71 74 74 75 76 77 77 82 82 83 87 88 90 91 93

And the median would be the value in the position 13 and we got:

$Median= 74$

6 0

2 years ago

Five times my age 4 years ago is the same as 3 times my age in 2 years." How old is Elmo now?

zheka24 [161]

Answer:

elmo is 3 right now

Step-by-step explanation:

5x -4 = 3x+2

2x= 6

x= 3

7 0

2 years ago

Read 2 more answers