The area of an equilateral triangle is (1/2)bh. The base is 5, so using the Pythagorean theorem we get h by:
5² = (5/2)² +h²
h = √18.75
h = 4.33
So the area of one face is (1/2)(5)(4.33) = 10.825m²
The total area is 4(10.825m²) = 43.3m²
Answer:
-6m-54, and y-x
Step-by-step explanation:
1: if m is less than 9, and 9•6 is 54, then 6m -54 will be less than 54
that means it will be negative. so you take |6m-54| out of absolute value, and make it negative: -6m-54
2: for this one, y is greater than x, so the overall answer must be positive. remove the absolute value sign, but don't change the equation.
|y-x|=y-x
Mean = (3+7+4+6+5)/5= 5
Median(middle value) = 3, 4, 5, 6, 7= 5
She ate 7 yards. This is because 3 feet=1 yard, so you can say that she ate 1 yard per day, for 7 days, so that makes it 7 yards.