Answer:
I believe its 3.4-?
Step-by-step explanation:
Double of 50 is 100, so 28*100=2800, now half of the answer is 2800/2=1400
The three inside angles of a triangle equal 180 degrees.
All the 3 given angles together to equal 180 to solve for x, then calculate angle A.
x + (x-8) +(3x+13) = 180
Simplify the left side by combing like terms:
5x +5 = 180
Subtract 5 from each side:
5x = 175
Divide both sides by 5:
x = 175/5
x = 35
Now x is known, replace x in the equation for angle A:
3x+13 =
3(35) +13 =
105+13 = 118
Angle A = 118 degrees.
The distance in scientific notation is 5.6x10^5 miles. ^ is to the power of. Start from the right of a number and count the number of spaces till you get between the first two numbers, and that is how you get your exponent. It would be a different case if you had a decimal number though. For example the scientific notation of 0.00000256 would be 2.5x10^-6. You would count the number of spaces from the left to right and the exponent would be a negative.
Imagine a rectangular area that represents the garden. Then, add a uniform margin of 2 ft around it. So, the length and width dimensions of the bigger outer rectangle would be added with 4 ft each, accounting for two 2-ft marginal distances on both ends. This would be the perimeter:
2(L+4) +2(W+4) = 46
Since L = 2W
2(2W +4) + 2(W+4) = 46
4W + 8 +2W + 8 = 46
W = 5 ft
L = 2(5) = 10 ft
Therefore, the dimensions of the garden is 10 ft in length and 5 ft in width. The area, consequently, is calculated as:
A = LW
A = (10 ft)(5 ft)
A = 50 ft²
Thus, the area of the garden is 50 ft².