Answer:
What exactly is your question?
Step-by-step explanation:
<span><span>−1/</span>3</span>m−7=5Add 7 to both sides.<span><span><span><span><span><span><span>−1/</span>3</span></span>m</span>−7</span>+7</span>=<span>5+<span>7</span></span></span><span><span><span>
<span><span>−1/</span>3</span></span>m</span>=12</span>Multiply both sides by 3/(-1).<span><span><span>(<span><span><span>3/<span>−1</span></span></span></span>)</span>*<span>(<span><span><span><span>−1/</span>3</span></span>m</span>)</span></span>=<span><span>(<span><span><span>3/<span>−1</span></span></span></span>)</span>*<span>(12)</span></span></span><span>m=<span>−36</span></span>Answer:<span>m=<span>−36</span></span>
Answer:
x=14√3 and y=28
Step-by-step explanation:
This is a 30, 60, 90 triangle. We have to multiply 14 by 2 to get the hypotenuse. In this case, the hypotenuse is y. 14x2 is equal to 28. Therefore, y=18. The long side is equal to the small side times the √3. Therefore, x is equal to 14√3. Therefore, x=14√3 and y=28.
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Answer:
The number is -1/2
Step-by-step explanation:
Let x be the number
2x+8 = 7
Subtract 8 from each side
2x+8-8 = 7-8
2x = -1
Divide each side by 2
2x/2 =-1/2
x = -1/2
The number is -1/2
Answer:
or 0.2 or 20%
Step-by-step explanation:
For only two tests to be needed this means that the first test would need to come back as negative and the second test would be to come back as positive. Therefore, to find the probability of this happening we first need to find the probability of each individual test and multiply them together.
The first test needs to come back negative, there are four negative individuals out of the total 5 that are in the group. Therefore, the probability of the first test is 4/5.
Now we remove the individual that has just been tested and we are left with 4 total subjects in the group, of which only 1 is positive. Therefore, the probability of the second test is 1/4. Now we need to multiply these two probabilities together to get the probability of only needing two tests.
or 0.2 or 20%
