Answer:
∠C = 80 ° ; ∠ T = 40°.
Step-by-step explanation:
Triangle CRS is isosceles because it has two sides of equal length. (CR and CS are radii).
An isosceles triangle has also two equal angles, which means that ∠CRS= ∠CSR.
Therefore, ∠C = 80 ° (180° – 50° - 50°) because the sum of angles in a triangle is 180 degrees.
∠C is the central angle of the arc RS.
∠ T is the inscribed angle of the arc RS.
An inscribed angle is half of a central angle that subtends the same arc on the circle, so the inscribed angle ∠ T is half of the central angle ∠C. Since ∠C = 80 °, we can easily determine the measure of ∠ T:
80° divided by 2 is 40°.
Answer:
The only fraction i can think of is 2/9
Step-by-step explanation:
The correct answer would be 8
Answer:
(- 1, 1 )
Step-by-step explanation:
Given the 2 equations
2x - y = - 3 → (1)
x + y = 0 → (2)
Adding the 2 equations term by term will eliminate the term in y, that is
3x = - 3 ( divide both sides by 3 )
x = - 1
Substitute x = - 1 into either of the 2 equations and solve for y
Substituting into (2)
- 1 + y = 0 ( add 1 to both sides )
y = 1
Solution is (- 1, 1 )
Answer:
8
Step-by-step explanation:
8% is the annual interest rate. Since, only 3 month has been passed in the year end so, interest accrue of only 3 months.
8% is the interest of 12 months. So, 8%/12 is the interest rate of 1 month. But we want 3 month of interest rate. Multiplying (8%/12)*3, we will get 3 month interest rate.
Note, that we have substituted x with 8. Because, we need interest rate of 3 month, and 8 is the interest rate of 12 months.
