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3 years ago

7

38 minus 14, divided by 8

1 answer:

Anarel [89]3 years ago

5 0

Answer: the answer to your question is 36.25

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The number of typographical errors in a document follows a Poisson distribution with a mean of 3 errors per page. Let X represen

n200080 [17]

Answer:

probability of x is 0.22 correct to two decimal places

Step-by-step explanation:

step 1. use the poisson formula given as

p(x) = (λˣe∧-λ) ÷x! where λ is the mean and it called lambda,λ = 3, e is mathematical constant and it approximately = 2.7183, x is the chosen value which is equal to 2, Λ is raise to power, ! is factorial sign

p(x=2) =( 3² x 2.7183⁻³) ÷ 2! = 0.22

3 0

3 years ago

5. Mis the midpoint of CD. C has coordinates (-1,-1) and

lana66690 [7]

Answer/Step-by-step Explanation:

4. Midpoint (M) of AB, for A(-2, -3) and B(1, 2) is given as:

$M(\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2})$

Let $A(-2, -3) = (x_1, y_1)$

$B(1, 2) = (x_2, y_2)$

Thus:

$M(\frac{-2 + 1}{2}, \frac{-3 + 2}{2})$

$M(\frac{-1}{2}, \frac{-1}{2})$

5. Given M(3, 5) as midpoint of CD, and C(-1, -1),

let $C(-1, -1) = (x_2, y_2)$

$D(?, ?) = (x_1, y_1)$

$M(3, 5) = (\frac{x_1 +(-1)}{2}, \frac{y_1 +(-1)}{2})$

Rewrite the equation to find the coordinates of D

$3 = \frac{x_1 - 1}{2}$ and $5 = \frac{y_1 - 1}{2}$

Solve for each:

$3 = \frac{x_1 - 1}{2}$

$3*2 = \frac{x_1 - 1}{2}*2$

$6 = x_1 - 1$

$6 + 1= x_1 - 1 + 1$

$7 = x_1$

$x_1 = 7$

$5 = \frac{y_1 - 1}{2}$

$5*2 = \frac{y_1 - 1}{2}*2$

$10 = y_1 - 1$

$10 + 1= y_1 - 1 + 1$

$11 = y_1$

$y_1 = 11$

Coordinates of D is (7, 11)

7 0

3 years ago

Help me please:(((((

MariettaO [177]

Answer:

• Consider points (2, 0) and (0, 6) spotted from the graph.

${ \boxed{ \rm{slope = \frac{y _{2} - y _{1} }{x _{2} - x _{1} } }}}$

• substitute:

${ \rm{slope = \frac{6 - 0}{0 - 2} }} \\ \\ { \rm{ = \frac{6}{ - 2} }} \\ \\ { \boxed{ \boxed{ \tt{ \: \: slope = - 3 \: \: }}}}$

5 0

3 years ago

A car travels at a rate of 45 miles per hour for 5 hours. Let y be the distance, in miles, the car travels for a given amount of

marissa [1.9K]

Answer:

the car is very slow

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

!!!URGENT!!! Read Image Below.

KIM [24]

Answer:

$x = \frac{6 \pm \sqrt{(-6)^2 - 4(3)(8)}}{2(3)}$

Step-by-step explanation:

Given the equation, $3x^2 - 6x + 8 = 0$ , the quadratic formula for solving this equation is given as:

$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$

Where,

a = 3

b = -6

c = 8

Plug in the above values into the quadratic formula.

$x = \frac{-(-6) \pm \sqrt{(-6)^2 - 4(3)(8)}}{2(3)}$

$x = \frac{6 \pm \sqrt{(-6)^2 - 4(3)(8)}}{2(3)}$

4 0

3 years ago