What is the question you need answered?!
Answer:
14
Step-by-step explanation:
It says 'Evaluate (y - 9) + (3 + x), when y = 15 and x = 5'.
So we'd put 15 in y's place. It'll look like this (15 - 9).
Then we'd put 5 in x's place. It'll look like this (3 + 5).
You subtract (15 - 9) which equals 6. And you'd add (3 +5) which equals 8. You add 6 + 8 together since those are your answer for the parentheses. Your final should be 14. Hopefully this helped!
Answer:
54.8 = total area+
Step-by-step explanation:
Start with the widest part near the middle. Three inches is taken away from 7 inches to give 4 inches.
4 inches must be divided by 2 since the triangles so formed are congruent and there are 4 of them.
Use the Pythagorean theorem to get the height of the triangles. Solve the height for just one of them.
height = ??
Base = 2
hypotenuse = 5
height^2 + 2^2 = 5^2
height^2 + 4 = 25
height^2 + 4 - 4 = 25 - 4
height^2 = 21
height = sqrt(21)
height = 4.58
<em>Area of 4 Trangles</em>
Area of the triangles = 4 * (1/2 * 2 * 4.58)
Area of the triangles = 18.32
<em>Area of the Middle Rectangle</em>
Area = l * w
length = 4.58 * 2 where did that 2 come from?
width = 3
Area = 3 * 2 * 4.58
Area = 27.48
<em>Area of the two End Squares</em>
The end squares measure 3 by 3
Area square = s*s
The area = 3*3 = 9
<em>Total Area</em>
Area = 9 + 27.48 + 18.32
Area = 54.8 units.
Simplifying
4+-7=8t+3
Reorder the Terms
-7+4=8t+3
Reorder The terms again
-7+4t=3+8t
Solving for the variable T
Move all terms containing t to the left, and all other terms to the right
Add -8t to each side of the equation
-7+4t+-8t=3+8t+-8t
Combine like terms
4t+-8t=-4t
7+-4t=3+8t+-8t
Combine like terms
8t+-8t=0
-7+-4t=3+0
-7+-4t=3
Add 7 to each side of the equation
-7+7+-4t=3+7
Combine like terms
0+-4t=3+7
-4t=3+7
Combine like terms 3+7=10
-4t+10
Divide each side by 4
t= -2.5
Simplifying
t= -25
