First you solve for y.
5x+ y= 12 so Y= 12-5x
And plug it into the next equation
3x- 3(12-5x) = 18
Distribute
3x-36+15x=18
Add 36 to both sides
3x+ 15x= 54
18x= 54 ... divide
x= 3
And you can plug in x to solve for Y
5(3) + y = 12
15+ y = 12 ...subtract 15 from both sides
y= -3
Answer:
g= 60°
i= 70°
h= 50°
Step-by-step explanation:
g=180-120 = 60°
i= 180-110 = 70°
h=180-60-70 = 50°
hope this helps =)
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Answer:
Step-by-step explanation:
The given equation is ![\sqrt[3]{x+8}=-4](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7Bx%2B8%7D%3D-4)
.
We cube both sides of this equation to obtain;
![(\sqrt[3]{x+8})^3=(-4)^3](https://tex.z-dn.net/?f=%28%5Csqrt%5B3%5D%7Bx%2B8%7D%29%5E3%3D%28-4%29%5E3)
.
This implies that;
We group similar terms to obtain;
We simplify the right hand side of the equation to obtain;
Therefore x=-72 is the solution of the given equation.
Answer:
Approx. 11 ft. See below.
Step-by-step explanation:
The tangent function is the easiest tool to use here. tan 24 degrees = opp / adj = (5 ft) / x. We are to find x. Multiplying both sides of this equation by x, we get x * tan 24 degrees = 5 ft. Thus, x = (5 ft) / (tan 24 degrees) = 11.23 ft, or approx. 11 ft.
Volume of a sphere = 4/3(3.14)(2.6)^3
Raise 2.6 to the third power and substitute it in the equation
Multiply that number by 3.14
Whatever your answer is, times it by 4
Then divide that answer by 3
Hope this helps !
