Answer:
C) -1
Step-by-step explanation:
(ax+3)²=36
<em>Square root both sides</em>
ax+3=6
<em>Subtract 3 from both sides</em>
ax=3
<em>Put x in</em>
-3a=3
a= -1
C) -1 would work.
Answer:
5.) b = -2/5 (or -0.4 in decimal form)
6.) 20.5
Answer: Your answer would be friction.
Step-by-step explanation:
Friction produces heat because it causes the molecules on rubbing surfaces to move faster and develop more energy.
Hope this helps!
Answer: 20 = right triangle 21 = acute 22 = obtuse
Step-by-step explanation:
20 - Because there is a right angle/ 90 degree angle
21 - Because all the angles are less that 90 degrees which makes them acute.
22 - Because all the angles are more than 90 which makes them obtuse.
Answer:
Then the probability that exactly 6 bridges in the sample are structurally deficient is 0.1063 or 10.63%
Step-by-step explanation:
Let X the random variable of interest "number of bridges in the sample are structurally deficient", on this case we now that:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
And we want to find this probability:

And if we use the probability mass function and we replace we got:
Then the probability that exactly 6 bridges in the sample are structurally deficient is 0.1063 or 10.63%