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3 years ago

PLEASE HELP!!!

Mathematics

2 answers:

Naddika [18.5K]3 years ago

8 0

Answer:

Step-by-step explanation:

To answer this question, we have to define to bisect an angle:

To bisect an angle is to divide it into two equal parts, we can call those as congruent parts because these have the same area.

So it is crucial: we need to keep it proportionally divided when we start to construct an angle bisector.

Examining the alternatives, there is only one correct:

D. So now let's place the compass needle on the vertex of the angle, and draw an arc across both legs of the angle. True

The reason to proceed this way as our first step is the proportional division made by the inner line that bisects the angle. Thus in the first step, we pave the way to trace another arc in the middle of the inside area. Done with the same width and compass needle on the marks. Finally, the line to vertex crossing the mark.

(Check the 3rd picture to Final Construction)

kvasek [131]3 years ago

7 0

Answer:

Step-by-step explanation:

Then you find the intersection and get the bisector without a protractor :)

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Find the area of the shaded sector.

Vladimir [108]

Given that,

Radius of the circle, r = 8.91 cm

Angle, $\theta=81^{\circ}$

To find,

The area of minor sector.

Solution,

The formula for the area of minor sector is given by the formula as follows :

$A=\dfrac{\theta}{360}\times \pi r^2\\\\A=\dfrac{81}{360}\times \pi \times (8.91)^2\\\\A=56.11\ \text{cm}^2$

So, the area of the shaded sector is $56.11\ \text{cm}^2$ .

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3 years ago

Trinity is opening a bakery. She plans to start by selling cakes. It costs her $5

suter [353]

Answer:

D. C= 6.43n + 1075. Hope this helps!

Step-by-step explanation:

The cost of her cakes (each cake, box, and bag) equals 6.43 per cake(n).

The cost of everything else (rent, electricity, and advertising) equals 1075.

4 0

3 years ago

Help with explanation please

Dennis_Churaev [7]

Answer:

MBC=FTTHSGUSJHHUYYVSVHEJSJEVEJDJDHB=**?!1235849

Step-by-step explanation:

M is dead so B is going to collect money. thanks for the update and for some of my friends and for some reason and t and I will get you the information you requested and for your and your and I have a lot going to get you a copy of my CV and I have to be there by and pick it up tomorrow if the update I was just going to text you but the information I need to text me if the is no longer a part y to be y to be y to text or to be there by and pick up tomorrow at noon so we will be able or to be y be able or willing and for the first week of my e to text you and I hope to hear back from the guy I was telling you but you are not a good time to text or to be there by to pick up tomorrow if the update and the update I was just wondering if everything goes well and that the information you have a good ii

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3 years ago

Paint manufacturer uses a machine to fill 1- gallon cans with paint- they want to estimate the mean volume of paint the machine

Triss [41]

Answer:

$n=(\frac{1.64(0.85)}{0.25})^2 =31.09$

So the answer for this case would be n=32 rounded up to the nearest integer

Step-by-step explanation:

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

$\bar X$ represent the sample mean for the sample

$\mu$ population mean (variable of interest)

$\sigma=0.85$ represent the sample standard deviation

n represent the sample size (variable of interest)

The confidence interval for the mean is given by the following formula:

$\bar X \pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$

The margin of error is given by this formula:

$ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (1)

And on this case we have that ME =0.25 and we are interested in order to find the value of n, if we solve n from equation (1) we got:

$n=(\frac{z_{\alpha/2} s}{ME})^2$ (2)

The critical value for 90% of confidence interval now can be founded using the normal distribution. And in excel we can use this formla to find it:"=-NORM.INV(0.05,0,1)", and we got $z_{\alpha/2}=1.64$ , replacing into formula (2) we got:

$n=(\frac{1.64(0.85)}{0.25})^2 =31.09$

So the answer for this case would be n=32 rounded up to the nearest integer

5 0

4 years ago

Exxon manufacturing produces chips for computers the cost of producing X chips is given by c(x)=15x + 12000. the company sells e

valkas [14]

For this case we have the following equation:
 $c (x) = 15x + 12000
$
 Where,
x: number of chips
c (x): total cost
To find the fixed cost, we must find the intersection with the y axis of the given equation.
So we have that for x = 0:
 $c (0) = 15 (0) + 12000

c (0) = 12000$ 
Therefore, the fixed production cost is given by:
 $c (0) = 12000
$
 Answer:
The fixed cost of producing the chips is:
c (0) = 12000

6 0

4 years ago

Read 2 more answers