Cos 12 = sin (90 - 12) = sin 78
SYSTEMS OF EQUATIONS. A system of equations is a collection of two or more equations with a same set of unknowns. In solving a system of equations, we try to find values for each of the unknowns that will satisfy every equation in the system.
Okay, let's work this out.
<span><span><span>3x</span>+70</span>−<span>7x</span></span><span>=<span><span><span><span>3x</span>+70</span>+</span>−<span>7x
</span></span></span>Combine Like Terms:<span>=<span><span><span>3x</span>+70</span>+<span>−<span>7x</span></span></span></span><span>=<span><span>(<span><span>3x</span>+<span>−<span>7x</span></span></span>)</span>+<span>(70)</span></span></span><span>
=<span><span>−<span>4x</span></span>+<span>70
Answer -4x+70
I really don't understand what you mean by this, perhaps you wrote the question wrong, but it would be great than 18.
</span></span></span>
Answer:
0.549 or 54.9%
Step-by-step explanation:
This is a binomial distribution (Bernoulli's experiment), where the probability of “success” (selecting a battery with acceptable voltage) is 0.9 and the probability of “failure” is 0.1
So, the probability of selecting at least 14 acceptable batteries out of 15 is
where <em>C(n, m) are combinations of n elements taken m at a time</em>.
C(15,14) = 15
C(15,15) = 1
so, the probability we are looking for is
Y = mx + b
m = slope = rise/run = 1/1 = 1
b = y -intecept = where the line and line-y meet (0,2) = 2
y = 1x + 2 <-answer
y = x + 2
