Answer:
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Step-by-step explanation:
7-2x= 1-5x+2
Combine like terms
7-2x= 3-5x
Add 5x to both sides
7+3x= 3
Subtract both sides by 7
3x= -4
Divide both sides by 3
x= -4/3
Final answer: -4/3
Answer:
B: 81π inches
Step-by-step explanation:
The formula for the circumference of a circle is C = πd and the formula for the area of a circle is A = πr²
- The formula for the circumference of a circle can also be written as C = 2πr since the diameter is equal to double the radius (d = 2r)
- So we need to solve for r since that is the variable we are missing in order to solve for the area
Plugging in our known values to the circumference formula we have:
- 18π = 2πr
- Then dividing both sides by 2π we have 9 = r
Now that we have solved for the radius, we can plug in this value to the area formula:
Given mean μ = 7.6 and standard deviation σ =3.1
The z score value for x= 5 is given by
Z = 
Z = 
Z = -0.8387
The Z- score value rounded to nearest tenth is -0.8
The correct answer choice is A. -0.8
Answer:
i think it is .64
Step-by-step explanation: