Answer: (6, 9), (3, 13)
<u>Step-by-step explanation:</u>
Left picture:
opposite side of parallelograms are congruent (equal)
3x = 18 3y - 1 = 26
<u>÷3 </u> <u>÷3 </u> <u> +1 </u> <u>+1 </u>
x = 6 3y = 27
<u> ÷3 </u> <u>÷3 </u>
y = 9
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Right picture:
diagonals of a parallelogram bisect each other so the left side and right sides of each diagonal are congruent
20 = y + 7
<u>-7 </u> <u> -7 </u>
13 = y
16 = x + y
16 = x + 13
<u> -13 </u> <u> -13 </u>
3 = x
Answer:
Rate of change = 9
Step-by-step explanation:
m= (y2 - y1) / (x2 - x1)
= (25 - 7) / (4 - 2)
= 18 / 2
= 9
Answer:
320 cubic feet
Step-by-step explanation:
The volume is proportional to the product of the area of the base and the height of the pyramid. When the dimensions of the base are doubled, the area is multiplied by 2² = 4, hence the volume of the pyramid will be multiplied by 4.
4 × (80 ft³) = 320 ft³
The new volume of the pyramid is 320 cubic feet.
ANSWER

EXPLANATION
The given equation is:

Group similar terms to obtain:

Simplify similar terms,

Divide both sides by -2.5


If
x+y=-4
y-3x=16 or we cn write as
x+y=-4
-3x+y=16
i multiply the first equation by 3
3x+3y=-12
-3x+ y=16
4y=4
y=1
x+1=-4
x=-5