9514 1404 393
Answer:
64.6
Step-by-step explanation:
One standard deviation is 4.3. Then +2 standard deviations is ...
(+2)(4.3) = +8.6
This amount added to the mean gives ...
56 +8.6 = 64.6 . . . . +2σ from the mean
Answer:
To solve the equation, you have to to isolate the variable. So, first you subtract both sides by 7.
x +7 - 7 = -2 - 7
When you simplify further,
x = -9.
Hope this helps! :)
Answer:
3
Step-by-step explanation:
Hey!
Hope this helps...
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
x + y = 3
x = 3 - y
y = 2x - 15
y = 2(3 - y) - 15
y = 6 - 2y - 15
y = -2y - 9
3y = -9
y = -3
y = 2x - 15
-3 = 2x - 15
-2x = -12
x = 6
So...
The answer is: (6, -3)
The measure of angle RML is of 130º.
<h3>What is the value of x?</h3>
Angle NML is the sum of angles NMR and RML, hence:
NML = NMR + RML.
The given measures of the angles are:
Hence we can solve the equation for RML to find the measure of angle RML, as follows:
NML = NMR + RML
156 = 26 + RML
RML = 130º.
The measure of angle RML is of 130º.
A similar problem, in which the measures of the angles are calculated, is given at brainly.com/question/25716982
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