Answer:
Step 1) She should have added 25 to each side
Step-by-step explanation:
Since there is a -25 in the original equation, to properly cancel it out, she should have added it to both side, not subtracted. This would ensure that the -25 on the left of the = is cancelled out.
I found the image that should have accompanied this problem.
Given:
equilateral triangle with sides that measures 7cm.
hexagonal shape meaning 6 sides or 6 equilateral triangles used.
Area of an equilateral triangle = √3/4 * a²
A = √3 /4 * (7cm)²
A = 1.73/4 * 49cm²
A = 21.20 cm²
21.20 cm² * 6 tiles = 127.20 cm² ARea of the hexagon.
Answer:
0.3491rad
Step-by-step explanation:
We are asked to convert 20° to radians.
#We know that 1° is equal to π/180 or 0.01745rad.
To convert any angle degrees to radians, we multiply it by π/180:
Hence, 20° converted to radians is 0.3491rad
Th answer would be 12% 250-220=30 and 30 is 12% of 250
Answer: 24.6 m
Step-by-step explanation:
The shape described is that of a right-angled triangle.
This means that the height of the pole can be calculated using the Pythagorean rule.
c² = a² + b²
c = hypothenuse which is the length of the cable to the ground = 33m
a = base = distance from base of pole to cable point on ground = 22m
b = height of pole
33² = 22² + b²
1,089 = 484 + b²
b² = 1,089 - 484
b² = 605
b = √605
b = 24.6 m
