The volume is 13*7*5. Therefore, the answer is 455 in^3
The way you solve 26 is by taking the amount the companies earned and dividing it by their subscribers.
26 A: True 119/3.12 is $38, that is about $40
26 B: False 126/2.45 is $51, that is $9 less than $60.
26 C: False 108/2.83 is $38, that is $8 more than $30.
The way you solve 27 is by adding all of his rounds up and then dividing it by the total number of rounds. Otherwise known as mean
27: 94.4/8 is 11.8
W + c < = 41....because wheat and corn added together is less then or equal to 41 acres
c < 28...because corn will be less then 28 acres
so ur 2 inequalities are : w + c < = 41 and c < 28
x + 2y = 9
x + 3y = 13
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Solve for x in the first equation. Subtract 2y from both sides.
x = 9 - 2y
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Plug x into the second equation.
(9 - 2y) + 3y = 13
Combine like terms.
9 + y = 13
Subtract 9 from both sides.
y = 4
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Plug y back into the first equation.
x + 2(4) = 9
x + 8 = 9
Subtract 8 from both sides.
x = 1
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x = 1
y = 4
Find an equation of the plane that passes through the points p, q, and r. p(7, 2, 1), q(6, 3, 0), r(0, 0, 0)
Alona [7]
Answer:
x - 2y - 3z = 0
Step-by-step explanation:
The cross product of vectors rp and rq will give a vector that is normal to the plane:
... rp × rq = (-3, 6, 9)
Dividing this by -3 (to reduce it and make the x-coefficient positive) gives a normal vector to the plane of (1, -2, -3). Usint point r as a point on the plane, we find the constant in the formula to be zero. Hence, your equation can be written ...
... x -2y -3z = 0
