Answer:
y=17
Step-by-step explanation:
subtract 3 from both sides.
Step-by-step explanation:
80+60+x+51= 180
191+x= 180
x= -11
Answer:
Step-by-step explanation:
Given
See attachment for illustration
Required
Find x
To do this, we apply Pythagoras theorem.
From the attachment, the length of the hypotenuse is 16.7ft
While the length of the opposite/adjacent is 8.9ft
Length x is calculated using:
Take square roots
44.
1. Given
2. Vertical angles are congruent
3. angle 1 congruent to angle 5
4. Def congruence
Let x be the length of the edge of the original cube. When increased to twice its original size it becomes 2 x which gives a volume of
2x × 2x × 2x = 8x³
The volume is known. Hence
8x³ = 64,000
x³ = 8,000 which gives x = 20
<span>The area of one face of the original (before the increase) is given by x2</span>
x² = 20² = 400 square centimeters
