54cm is equivalent to 0.59 yards
The best method to measure the thickness of a quarter is (C) Centimeters.
This is because the thickness of a quarter is very small and thus bigger units such as meters and kilometers will not be convenient. Centimeters is the best unit.
Answer:
A) 8x + 9y = −3
B) 6x + 7y = 1
We multiply A) by -(6/8)
A) -6x -6.75y = 2.25 then we add this to equation B
B) 6x + 7y = 1
.25y = 3.25
y = 13
and x = -15
Step-by-step explanation:
Answer:
115°
Step-by-step explanation:
The angles of elevation and depression are supplementary, thus
angle of depression = 180° - 65° = 115°
Answer:
NO, It’s not a right triangle
Explanation:
Using the converse of Pythagoras’ theorem if the triangle is right then
Square on longest side = sum of square of the other sides
70^2= 4900
55^2 + 42^2 = 4789
Since 4900 ≠ 4789 not a right triangle
