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1 year ago

Photo Necessities produces camera

Mathematics

1 answer:

Readme [11.4K]1 year ago

7 0

Answer:

A graphing calculator can do quadratic regression on the given points. It tells you the cost function is

.. c(x) = (1/2)x^2 +8x +10

Then c(12) = 178

The cost function predicts the total cost of producing 12 camera cases is $178.

Step-by-step explanation:

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Solve the equation: only write the number is the box <br> 2( 5x+2)=54

Black_prince [1.1K]

Answer:

x = 5

Step-by-step explanation:

Step 1:

2 (5x + 2) = 54

Step 2:

10x + 4 = 54

Step 3:

10x = 50

Answer:

x = 5

Hope This Helps :)

7 0

2 years ago

Read 2 more answers

3) Keith took a ferry to a nearby island that lasted for 82 minutes. Although he forgot to check the

adell [148]

Answer:

Step-by-step explanation:

so if he arrived at 11:22 AM.....and it took him 82 minutes....

82 minutes = 1 hr and 22 minutes

then he departed at :

11:22 - 1 hr and 22 minutes = 10:00 AM <==

6 0

3 years ago

A circle is centered at (−4, −6) and has a radius of 3. Which of the following is the equation for this circle? (6 points)

ANTONII [103]

$\bf \textit{equation of a circle}\\\\ 
(x- h)^2+(y- k)^2= r^2
\qquad 
center~~(\stackrel{-4}{ h},\stackrel{-6}{ k})\qquad \qquad 
radius=\stackrel{3}{ r}
\\\\\\\
[x-(-4)]^2+[y-(-6)]^2=3^2\implies (x+4)^2+(y+6)^2=9$

6 0

3 years ago

Read 2 more answers

The amounts of time employees of a telecommunications company have worked for the company are normally distributed with a mean o

Fynjy0 [20]

Answer:

a) 5.6 years

b) 0.4478

Step-by-step explanation:

We are given the following in the question:

Mean, μ = 5.6 years

Standard Deviation, σ = 1.9 years

Sample size, n = 18

We are given that the distribution of amounts of time is a bell shaped distribution that is a normal distribution.

a) Mean of each sample.

The best estimator of the sample mean is the population mean itself. Thus, we have:

$\mu_{x} = \mu = 5.6$

Thus, the sample mean is 5.6 years.

b) Standard error

Formula:

$S.E = \dfrac{\sigma}{\sqrt{n}}$

Putting values, we have.

$S.E = \dfrac{1.9}{\sqrt{18}} = 0.4478$

Thus, the standard error is 0.4478.

7 0

2 years ago

I need help please help me

Misha Larkins [42]

12P3
= 12 x 11 x 10 x 9! / 9!
= 12 x 11 x 10
= 1320

3 0

2 years ago

Read 2 more answers