What is the missing constant term in the perfect square that starts with x2+18xx^2+18xx2+18xx, squared, plus, 18, x ?
2 answers:
Answer:
81
Step-by-step explanation:
Given the expression:
To make it a perfect square, we follow the following steps.
Divide the coefficient of x by 2
- Coefficient of x=18, 18/2=9
Square It
- 9 X 9=81
Add it to the expression
This is written as a perfect square as:
The constant term required therefore is 81.
Answer:
This is written as a perfect square as
The constant term required therefore is 81.
Step-by-step explanation:
Given that;
The expression
we follow the following steps.
Divide the coefficient of x by 2
Coefficient of
Square 9
9² = 81
The expression goes
This is written as a perfect square as
The constant term required therefore is 81.
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Answer: 90 visitors per hour
Explanation: "Per hour" means in 1 hour, so we can rewrite the given statement using fractions as <em>450 visitors/5 hours = __visitors/1 hour</em>.
To find out what goes in the bank, notice that we
have a 1 in the denominator of our second fraction.
So we want to find a fraction that is equivalent
to 450/5 that has a 1 in the denominator.
If we divide the numerator and denominator of 450/5 by 5,
we get the equivalent fraction 90/1 or <em>90 visitors/1 hour</em>.
So now we have <em>90 visitors/1 hour = __visitors/1 hour</em>.
So a 90 must go in the blank.
This means that the museum sees 90 visitors per hour.
