Answer:
15
Step-by-step explanation:
12 x 0.25= 3
12+3=15
The unknown measurements of the triangle are C = 28°, c = 3.76 and b = 7.06.
<h3>Sine rule</h3>
Sine rule is used to show the relationship between sides of a triangle and the angles. It is given by:
Where a, b, c are the sides and the angles opposite the sides are A, B, C respectively.
- A + B + C = 180° (angles in a triangle)
- 62 + 90 + C = 180
- C = 28°
The unknown measurements of the triangle are C = 28°, c = 3.76 and b = 7.06.
Find out more on sine rule at: brainly.com/question/2264443
This student is incorrect because there is no number that you can multiply by 2 to get 5. Therefore, the proper point would be (1, 5) as the equation is setup as x+2y=5, so x must equal 1, and y must equal 2. Now to check if its correct:
1+2(2)=5
2x2=4
1+4=5
It is correct, so the answer is (1, 5)
Answer:
4 inches should be turned up on both sides.
Step-by-step explanation:
In order to find this, create a situation in which we give the amount turned up on each side as x. Then give the amount that isn't turned up as 16 - 2x (since 2x is the amount turned up). Now we can find the area by multiplying the 3 measurements.
100 * x * (16 - 2x) = MAX
100 * (16x - 2x^2) = MAX
-200x^2 + 1600x = MAX
Now that we have a quadratic function, we can find the maximum value of x by using the vertex formula for x values (-b/2a).
x = -b/2a
x = -1600/2(-200)
x = -1600/-400
x = 4
It is a triangle being classified right, since it has 3 angles? So, you would add 58 and 32 which is 90. Then, you would subtract 90 from 180. That would equal 90 degrees. C=90 degrees. It is a right triangle.