To 3 significant figures:
19.3 cm
Answer:
z = 1, z = 9
Step-by-step explanation:
Given
z² + 9 = 10z ( subtract 10z from both sides )
z² - 10z + 9 = 0
Consider the factors of the constant term (+ 9) which sum to give the coefficient of the z- term (- 10)
The factors are - 1 and - 9, since
- 1 × - 9 = 9 and - 1 - 9 = - 10, thus
(z - 1)(z - 9) = 0 ← in factored form
Equate each factor to zero and solve for z
z - 1 = 0 ⇒ z = 1
z - 9 = 0 ⇒ z = 9
So triangles degrees always adds until 180.
so if two angles add to more than 90 then the last angle is less than 90
there are three types of triangles
Right Triangle = one angle is 90 degrees
Acute = all angles less than 90 degrees
Obtuse = One angle is greater than 90 degrees
so this triangles must be acute
the answer is B
Answer:
Multiple both sides of equation by a common multiple
Step-by-step explanation:
12(5x/6 + 11/4) = (17/3)(12)
