<span><span><span><span>2a</span>−9</span>+<span>2a</span></span>=<span><span><span>−<span>2a</span></span>+15</span>+<span>2a</span></span></span><span><span><span>4a</span>−9</span>=<span>15
</span></span>Step 2: Add 9 to both sides.<span><span><span><span>4a</span>−9</span>+9</span>=<span>15+9</span></span><span><span>4a</span>=<span>24
</span></span>Divide both sides by 4.<span><span><span><span><span>4a/</span>4</span></span></span>=<span><span>24/<span>4
</span></span></span></span>Answer:<span>a=<span>6</span></span>
Answer:
The answer is C.
Step-by-step explanation:
Remember, to find the mean of some scores, you must add all the scores together, then you must divide by the number of scores you added. In this case, you would divide by four, because you had four numbers you added to gether.
They are complementary and adjacent angles (Brainliest please)
Answer:
c. There is a vertical asymptote at x = pie
d. f(x) is undefined when sin x=0
Step-by-step explanation:
The given function is 
.
This is the reciprocal of the sine function;
This function is not defined when
This implies that there is a vertical asymptote at 
because 
.
Answer:
Step-by-step explanation:
Given
Represent the size with n and the probability with p
Required
Determine the expected value; E(x)
<em>Hence, the expected value is 7.86</em>
