2 answers:
Answer:


Step-by-step explanation:
we have

Rewrite (Multiply by
both sides)

The formula to solve a quadratic equation of the form
is equal to

in this problem we have

so

substitute


remember that


Simplify




therefore there are no solutions in real numbers.
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Answer:
Step-by-step explanation:
60 -1 1/2 (8) 2
= 60 - 3/2 (8)(2)
= 60 - 3(8)
= 60 - 24
= 36
Answer:
4^2
Step-by-step explanation:
Order of operations:
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
Answer:
x=4,−3
Step-by-step explanation:
[tex] 3(x + 5) - 2(x + 2) = 20 \\
3x + 15 - 2x - 4 = 20\\
5x + 11 = 20\\
5x = 9\\
x = 1\frac{4}{5} [tex]
Diameter= 2 times the radius
2r=d
2r=10.2
R= 10.2/2
R=5.1
Therefore, the radius is 5.1 units which makes the answer choice C correct.
Hopefully, this helps!