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Natalija [7]
3 years ago
9

Which set of sides will make a triangle

Mathematics
1 answer:
ale4655 [162]3 years ago
4 0
A triangle is made of letter A
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Please answer this ASAP LINKS WILL BE BANNED !!!
Karo-lina-s [1.5K]

Answer:

p = - 10

Step-by-step explanation:

I hope this helps. Good luck

5 0
3 years ago
If the maximum acceleration that is tolerable for passengers in a subway train is 1.74 m/s2 and subway stations are located 930
Free_Kalibri [48]
Given that the subway stations are 930 m apart, the train have to be accerelated for half the distance and then decerelated for the rest of the distance.

Recall that the distance travelled by an object with an initial velocity, u, for a period of time, t, at an accereration, a, is given by
s=ut+ \frac{1}{2} at^2

But, we assume that the train accelerates from rest, thus
s=\frac{1}{2} at^2 \\  \\ \Rightarrow465=\frac{1}{2}(1.74)t^2 \\  \\ \Rightarrow t^2=534.48 \\  \\  \Rightarrow t=\sqrt{534.48}=23.12

The maximum speed is attained at half the center of the distance between subway stations (i.e. at distance = 465 m).

Thus, maximum speed = distance / time = 465 / 23.12 = 20.11 m/s.
6 0
3 years ago
12. If a manufacturer conducted a survey among randomly selected target market households and wanted to be 95% confident that th
atroni [7]

Answer:

n=\frac{0.5(1-0.5)}{(\frac{0.03}{1.96})^2}=1067.11  

And rounded up we have that n=1068

Step-by-step explanation:

We have the following info given:

Confidence= 0.95 the confidence level desired

ME =0.03 represent the margin of error desired

The margin of error for the proportion interval is given by this formula:  

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}    (a)  

The confidence level is 95% or 0.95, the significance is \alpha=0.05 and the critical value for this case using the normal standard distribution would be z_{\alpha/2}=1.96

Since we don't have prior information we can use \hat p= 0.5 as an unbiased estimator

Also we know that ME =\pm 0.03 and we are interested in order to find the value of n, if we solve n from equation (a) we got:  

n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}   (b)  

And replacing into equation (b) the values from part a we got:

n=\frac{0.5(1-0.5)}{(\frac{0.03}{1.96})^2}=1067.11  

And rounded up we have that n=1068

6 0
3 years ago
Which product of prime polynomials is equivalent to 4x5 – 6x4 + 4x3 – 6x2?
Sedbober [7]

Answer:

4 x^5 - 6 x^4 + 4 x³ - 6 x² =  

Answer:  1 ) 2 x² ( x² - 1 ) ( 2 x - 3 )

6 0
3 years ago
Select all that apply. (PLEASE HELP!!)
AlexFokin [52]
A and B are the answers.

If you need proof, just ask in the comments, and I’ll get back to you.

I hope this helps!
5 0
3 years ago
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