Answer:
Simply search for surface area formula for pyramid on goole and plug the numbers into the formula!! Thank you so much!!
Step-by-step explanation:
Answer:
97 minutes
Step-by-step explanation:
Starting at 6:05, it will take 55 minutes to get to 7:00. Then you can add the 42 minutes to the 55 to get a total amount. This results in 97 minutes in total for your answer.
Answer:
(9-9x) - (3-x)
Step-by-step explanation:
(4x2 -9x +1) - (5x2 -x -7)
4x2+1= 9. 5x2-7= 3
(9-9x) - ( 3-x)
Problem 10
<h3>Answer: (x+5)^2+(y-3)^2=25</h3>
------------
Work Shown:
All we're doing really is replacing the original 'y' with 'y-3' to shift the center up 3 units. This shifts every point on the circle the same as well.
This new circle has center (-5,3) and radius 5. The old center was (-5,0). The radius stayed the same.
===========================================================
Problem 11
<h3>Answer: (x-8)^2+(y-15)^2 = 9</h3>
------------
Work Shown:
x^2+y^2-16x-30y+280 = 0
(x^2-16x)+(y^2-30y)+280 = 0
(x^2-16x+64)-64+(y^2-30y+225)-225+280 = 0
(x-8)^2+(y-15)^2-9 = 0
(x-8)^2+(y-15)^2 = 9
This circle has center (8,15) and radius 3.
===========================================================
Problem 12
<h3>Answer: (x+6)^2+(y-11)^2 = 20</h3>
------------
Work Shown:
x^2+y^2+12x-22y+137 = 0
(x^2+12x)+(y^2-22y)+137 = 0
(x^2+12x+36)-36+(y^2-22y+121)-121+137 = 0
(x+6)^2+(y-11)^2-20 = 0
(x+6)^2+(y-11)^2 = 20
This circle has center (-6,11) and radius sqrt(20) = 2*sqrt(5).
