Answer:
b. y = -7x + 4
1. y = -7(-5)+ 4 = 35+4= 39
2. -24= -7x + 4
-28 = -7x
4 = x
3. y = -7(0)+4= 4
4. 0 = -7x+4
-4= -7x
4/7 = x
c. 3y - 5x = 15
1. 3y - 5(6)
3y-30=15
3y=45
y = 15
2. 3(-10)-5x=15
-30-5x=15
-5x = 45
x = -9
3. 3y-5(0)=15
3y=15
y=5
4. 3(0)-5x=15
0-5x=15
-5x=15
x=-3
Step-by-step explanation:
If you have an iphone look up the app photo math its free on the app store what you do is take a picture of the problem using the app no matter how many problems use that i guarantee you will get it right.When you take the pic wit will show you step by step how to do it show your work
Answer:
6) y = -7x +11
8) y = -1/3x -1
10) y = 5/4x -2
Step-by-step explanation:
It is convenient to start with a point-slope form of the equation.
y = m(x -h) +k . . . . . line with slope m through point (h, k)
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6) m = -7, (h, k) = (2, -3)
y = -7(x -2) -3 = -7x +14 -3
y = -7x +11
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8) m = -1/3, (h, k) = (-3, 0)
y = (-1/3)(x -(-3)) +0
y = -1/3x -1
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10) m = 5/4, (h, k) = (4, 3)
y = 5/4(x -4) +3 = 5/4x -5 +3
y = 5/4x -2
Answer:
The voume of the cylinder is (pi)(x^2)(y)
Voulne of the cone is (1/3)(pi)(3x)^2(h). H is the unknown height of the con2
Since the volumes are equal
(pi)(x^2)y = (1/3)(pi)(9x^2)h
h= y/3
Step-by-step explanation:
First you find 10% by dividing by 10, to get 65, and then you can multiply 65 by 3 to get 195, which is 30%. If you have a calculator, you can just do 650 × 0.3 to get the same answer. Hope this helps!
