Answer:
<h3>

</h3>
Step-by-step explanation:

Distribute 2 through the parentheses
⇒
Collect like terms
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Move 8 to right hand side and change it's sign
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Add the numbers
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Divide both sides of the equation by 11
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Calculate
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Answer:
The volume of the pyramid is 33.33 cubic inches
Step-by-step explanation:
we know that
The volume of the rectangular bases pyramid is given by the formula

where
B is the area of the rectangular base of pyramid
h is the height of pyramid
we have

substitute

Answer:
x=2, y=2
Step-by-step explanation:
3x + y = 8
2x + 4y = 12
Multiply the first equation by -4
-12x -4y = -32
Then add to the second equation
-12x -4y = -32
2x + 4y = 12
------------------------
-10x + 0y = -20
-10x = -20
Divide by -10
-10x/-10 = -20/-10
x =2
Now find y
3x+y = 8
3(2)+y = 8
6+y = 8
y = 8-6
y =2
Answer:To find out the Area of a scalene triangle whose three sides are given, first find out the half perimeter
s = (a+b+c)/2
where a, b, and c are the length of the three sides of a triangle
s = (35 + 45 + 50) / 2
= 130 / 2
= 65 cm
Area of scalene triangle is given by
A = sqrt (s (s - a) (s - b) (s - c))
= sqrt (65 * (65 - 35) ( 65 - 45) (65 - 50))
= sqrt (65 * 30 * 20 * 15)
= sqrt (585000)
= 764.853 sq cm
Step-by-step explanation:
Answer:
72.5
Step-by-step explanation: