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seraphim [82]
3 years ago
6

Find the vertex y=5x^2-10x-13

Mathematics
1 answer:
Travka [436]3 years ago
6 0
X=1 and y=8
 there u go 
hahahahahahahah
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WHAT IS QUARTER OF 74?
kondaur [170]

Answer:

18.5

Step-by-step explanation:

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3 0
3 years ago
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I need it as a linear function thank you
Alisiya [41]

5~~,~~\stackrel{5(6)}{30}~~,~~\stackrel{30(6)}{180}~~,~~\stackrel{180(6)}{1080}~~,~~\stackrel{1080(6)}{6480}~\hfill \boxed{f(x)=x_{n-1}(6)}

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3 0
2 years ago
(d) A drinks machine dispenses coffee into cups. A sign on the machine indicates that each cup contains 100ml of coffee. The mac
Marysya12 [62]

Answer:

The standard deviation of the amount of coffee dispensed per cup in ml is 3.91.

Step-by-step explanation:

Let the random variable <em>X</em> denote the amount of coffee dispensed by the machine.

It is provided that the random variable, <em>X</em> is normally distributed with mean, <em>μ</em> = 105 ml/cup and standard deviation, <em>σ</em>.

It is also provided that a sign on the machine indicates that each cup contains 100 ml of coffee.

And 10% of the cups contain less than the amount stated on the sign.

To compute the probabilities of a normally distributed random variable, first convert the raw score to a <em>z</em>-score,

z=\frac{X-\mu}{\sigma}

This implies that:

P (X < 100) = 0.10

⇒ P (Z < z) = 0.10

The value of <em>z</em> for the above probability is, <em>z</em> = -1.28.

*Use a <em>z</em>-table

Compute the value of standard deviation as follows:

      z=\frac{X-\mu}{\sigma}

-1.28=\frac{100-105}{\sigma}

     \sigma=\frac{-5}{-1.28}

        =3.90625\\\\\approx 3.91

Thus, the standard deviation of the amount of coffee dispensed per cup in ml is 3.91.

8 0
3 years ago
To find a segment parallel to another segment and through a given point using paper folding techniques requires two steps, The f
valkas [14]
The answer is true. Line segments can be able to intersect or be parallel to each other. 

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6 0
4 years ago
Read 2 more answers
This is correct right?
meriva

No, you have to distribute before adding

You distribute it like: 5x3 5x4, to get 15 and 20, then add it together

hope that helps :)

4 0
3 years ago
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