Answer:
22
Step-by-step explanation:
Answer: No
Step-by-step explanation:
Replace x for 5 and -7 separately.
Answer:
E) 166
Step-by-step explanation:
Standard deviation is 10
Margin error for the problem is 2
Probability 99%, that means thet the siginficance level α is 1 – p
α = 1 – 0.99 = 0.01
margin of error (ME) can be defined as follows
ME = Z(α/2) * standard deviation/ √n
Where n is the sample size
Z(0.01/2) = Z(0.005)
Using a z table Z = 2.576
Now, replacing in the equation and find n
2 = 2.576 * 10/ √n
2 = 25.76 /√n
√n = 25.76 /2
√n = 12.88
n = 12.88^2
n = 165.89 ≈166
Answer:
x=9
And 2x-5 = 13 is considered an algebraic equation
Step-by-step explanation:
Solve the equation:
2x - 5 = 13
2x = 18
x = 9
Algebraic Equations:
Algebraic equations are equations having variables and require variety of arithmetic functionalities and solutions.
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