The figure is not attached. So, I have attached it from the link- brainly.com/question/4198293
Answer:
![\tan(62)=1.875](https://tex.z-dn.net/?f=%5Ctan%2862%29%3D1.875)
Step-by-step explanation:
Label the triangle ABC as shown below.
Given:
AB = 8, BC = 15, AC = 17, m∠ABC = 90°, m∠ACB = 28°, m∠BAC = 62°
The tangent of a given angle is given as the ratio of the opposite side and the adjacent side. The opposite side is the side opposite to the angle. The adjacent side is the other leg of the right angled triangle.
Here, the opposite side to angle A is BC and adjacent side is AB.
Therefore, the tan ratio of angle A is given as:
![\tan A=\frac{BC}{AB}\\\tan (62)=\frac{15}{8}=1.875](https://tex.z-dn.net/?f=%5Ctan%20A%3D%5Cfrac%7BBC%7D%7BAB%7D%5C%5C%5Ctan%20%2862%29%3D%5Cfrac%7B15%7D%7B8%7D%3D1.875)
Hence, tan 62 = 1.875.
One reason that negative numbers would not make sense for values of the variables is that the solution having a negative value is not valid. It might be that the expression represents a real word problem and a negative value will not make any sense. Hope this helps.
Answer:
120 into a third and divide and the answer
Step-by-step explanation:
160
Answer:
![y = 2x^2 + 1](https://tex.z-dn.net/?f=y%20%3D%202x%5E2%20%2B%201)
Step-by-step explanation:
The graph you see there is called a parabola. The general equation for the graph is as below
![y = a*x^2 + b](https://tex.z-dn.net/?f=y%20%3D%20a%2Ax%5E2%20%2B%20b)
To find the equation we need to find the constants a and b. The constant b is just how much we're lifting the parabola by. Notice it's lifted by 1 on the y axis.
To find a it's a little more tricky. Let's use the graph to find a value for a by plugging in values we know. We know that b is 1 from the previous step, and we know that when x=1, y=3. Let's use that!
![3 = a * (1)^2 + 1\\2 = a](https://tex.z-dn.net/?f=3%20%3D%20a%20%2A%20%281%29%5E2%20%2B%201%5C%5C2%20%3D%20a)
Awesome, we've found both values. And we can write the result.
![y = 2x^2 + 1](https://tex.z-dn.net/?f=y%20%3D%202x%5E2%20%2B%201)
I'll include a plotted graph with our equation just so you can verify it is indeed the same.
Answer:
Probability that deliberation will last between 12 and 15 hours is 0.1725.
Step-by-step explanation:
We are given that a recent study showed that the length of time that juries deliberate on a verdict for civil trials is normally distributed with a mean equal to 12.56 hours with a standard deviation of 6.7 hours.
<em>Let X = length of time that juries deliberate on a verdict for civil trials</em>
So, X ~ N(
)
The z score probability distribution is given by;
Z =
~ N(0,1)
where,
= mean time = 12.56 hours
= standard deviation = 6.7 hours
So, Probability that deliberation will last between 12 and 15 hours is given by = P(12 hours < X < 15 hours) = P(X < 15) - P(X
12)
P(X < 15) = P(
<
) = P(Z < 0.36) = 0.64058
P(X
12) = P(
) = P(Z
-0.08) = 1 - P(Z < 0.08)
= 1 - 0.53188 = 0.46812
<em>Therefore, P(12 hours < X < 15 hours) = 0.64058 - 0.46812 = 0.1725</em>
Hence, probability that deliberation will last between 12 and 15 hours is 0.1725.