Answer:
7x2-1 = 0
Step-by-step explanation:
Add 1 to both sides of the equation :
7x2 = 1
Divide both sides of the equation by 7:
x2 = 1/7 = 0.143
When two things are equal, their square roots are equal. Taking the square root of the two sides of the equation we get:
x = ± √ 1/7
I think that the answer for question 6 is D. Hope this helps!
Answer:
r = -17
Step-by-step explanation:
Slope = -5
Slope =
3-r = (-5)*(-4)
3 - r = 20
-r = 20 - 3
-r = 17
r = -17
Volume of a cylinder = πr²h
Volume of the cylinder = π (2 3/16)² (3)
Volume of the cylinder= 45.10 in³
Answer: 45.10 in³
Answer:
r = 24
Step-by-step explanation:
3(r+2)+5(2−r)=−32
Step 1: Simplify both sides of the equation.
3(r+2)+5(2−r)=−32
(3)(r)+(3)(2)+(5)(2)+(5)(−r)=−32(Distribute)
3r+6+10+−5r=−32
(3r+−5r)+(6+10)=−32(Combine Like Terms)
−2r+16=−32
−2r+16=−32
Step 2: Subtract 16 from both sides.
−2r+16−16=−32−16
−2r=−48
Step 3: Divide both sides by -2.
−2r/-2 = -48/-2
r = 24