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Gennadij [26K]
3 years ago
8

How do you multiply and divide equations?

Mathematics
2 answers:
elixir [45]3 years ago
8 0
Equations are 

-5 and +6 etc.

Here is an example:

-3 x +2 = -6

Two different signs (-,+) means negative.

Hope this helped!


mote1985 [20]3 years ago
3 0
You never multiply or divide equations.

When you think it'll help you get closer to the solution, you might
multiply or divide ONE SIDE of an equation by something. But as
soon as you do that, you <u>absolutely must</u> do the same thing to the
other side of it.
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vagabundo [1.1K]

Answer:

25

Step-by-step explanation:

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3 years ago
Which transformation from the graph of a function f(x) describes the graph of g(x) =10f(x)
Elanso [62]
Multiplying a function by a constant factor (10 in this example) stretches the graph relative to the x-axis. If f(x) would be a sine, you would blow up the amplitude from -1..+1 to -10..+10.


8 0
4 years ago
In testing a certain kind of missile, target accuracy is measured by the average distance X at which the missile explodes. The d
3241004551 [841]

Answer:

The answer is c) 761.0

Step-by-step explanation:

Mathematical hope (also known as hope, expected value, population means or simply means) expresses the average value of a random phenomenon and is denoted as E (x). Hope is the sum of the product of the probability of each event by the value of that event. It is then defined as shown in the image, Where x is the value of the event, P the probability of its occurrence, "i" the period in which said event occurs and N the total number of periods or observations.

 The variance of a random variable provides an idea of the dispersion of the random variable with respect to its hope. It is then defined as shown in the image.

Then you first calculate E [x] and E [x^{2}], and then be able to calculate the variance.

E[x]=0*\frac{1}{40} +10*\frac{1}{20} +50*\frac{1}{10} +100*\frac{33}{40}

E[x]=0+\frac{1}{2} +5+\frac{165}{2}

E[X]=88

So <em>E[X]²=88²=7744</em>

On the other hand

E[x^{2} ]=0^{2} *\frac{1}{40} +10^{2} *\frac{1}{20} +50^{2} *\frac{1}{10} +100^{2} *\frac{33}{40}

E[x²]=0+5+250+8250

<em>E[x²]=8505 </em>

Then the variance will be:

Var[x]=8505-7744

<u><em>Var[x]=761 </em></u>

5 0
3 years ago
How do i find the area of a semicircle
Alex17521 [72]
Find the area of the circle using A=pi * r^2 and then divide that answer by 2 and that will get you the area of the semicircle.
3 0
3 years ago
Read 2 more answers
A 10 2/3 -inch long pipe is cut into 8 equal length pieces. How long is each piece?
ch4aika [34]

Answer:

Each peice is 1 1/3 (4/3) long.

Step by step explanation:

10 2/3 divided by 8

10 2/3 = 32/3

32/3 divided by 8 = 32/3 x 1/8

32 times 1 = 32, 3 times 8 = 24 =32/24

32/24 in simplest form is 4/3 (aka 1 1/3)

Hope this helped! :)

3 0
3 years ago
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