O Explain "set"

Mathematics

1 answer:

Vlada [557]2 years ago

5 0

Answer:

3) A circle Is a locus of a moving point which moves from equal distance in q fixed path.

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I need help plz I do not really understand this if you can help me I’d highly appreciate

svlad2 [7]

Answer:

Angle YXW=Angle VXZ that is 36.6°

Step-by-step explanation:

Vertically opposite angles are equal.

5 0

2 years ago

X(15-x)=50 quadratic equations

meriva

Answer:

$15x - {x}^{2} =50 \\ {x }^{2} - 15x + 50 = 0 \\ {x}^{2} - 10x - 5x + 50 = 0 \\ x(x - 10) - 2(x - 10) = 0 \\ (x - 2)(x - 10) = 0 \\ x = 2 \: and \: x = 10$

3 0

2 years ago

Recently, a random sample of 25–34 year olds was asked, "How much do you currently have in savings, not including retirement sav

lidiya [134]

Answer:

You forgot to put the data

Step-by-step explanation:

Because we don't have the data that represent the responses to the survery I can show you how to can get the mean and the standard deviation.

The mean is the average of the numbers. We use it to get a representative value of the data we are manipulating. We calculate it by adding all the numbers and then divide the sum by how many numbers we have.

The formule we use is:

∑ $\frac{(the data we have)}{of the data}$

The standard deviation is a measure of the variation or dispersion of the data we have. A low deviation indicates that our data is few disperced, on the other hand a big deviation indicates a high dispersion of the data.

The formule we use is:

$\sqrt{\frac{{∑(x-mean)^{2}}}{{number of data - 1} } }$