In order to make this equation true you would have to add to it if you want w to equal 12. As it stands the equation would work out as follows...
7w = 87
w = 87/7
w = 12 3/7
As you can see 12 3/7 does not equal 12. The answer is 12 with 3 left over, so to make the equation true with w remaining 12, we have to take those 3 extras away by changing the problem...
7w + 3 = 87
7w = 87 - 3
7w = 84
w = 84/7 = 12
Answer:
The answer is 754.4 cm²
Step-by-step explanation:
a = r²π
a = (31/2)²π
a ≈ 754.4
Answer:
B) 9 square units
Step-by-step explanation:
Split the shape into a right triangle and a rectangle.
The rectangle is 2 by 3, so multiply 2 x 3 for the area: 6.
The triangle has a height of 3 and a base of 2. Multiply to get 6. Then divide by 2 to get: 3.
Add 6 + 3 to get 9 square units.
Hope it helps!
Unfortunately though, we are not given with the dimensions of the perfect triangle and perfect rectangle which would compose Nevada. The square miles that Nevada cover may be calculated by adding the areas of the rectangle and triangle which are calculated by the equations below.
Area of triangle = bh/2
Area of rectangle = bh
Step-by-step explanation:
x^2 -14x + 45 =0
look for two numbers that their :
sum= - 14 (-5 & -9)
products = 45 (-5 & -9)
so,
(x-5)(x-9)=0
thus,
x=5, x=9 (ANS)