Find the product using the formula for multiplying the sum and difference of two terms. Check the answer using the FOIL method.(11x + 1)(11x - 1)
A. 121x2 - 22x - 1
B. x2 - 1
C. 121x2 - 1
D. 121x2 + 22x - 1
Answer: C
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Solve the problem.Use the formula s = r? to determine the value of r in the figure. Round to two decimal places.
A. 1.27 ft B. 0.02 ft C. 28.27 ft D. 0.79 ft
Provide an appropriate response.A student was asked to find ordered pairs that solve the system of equations x + 2y = 3 -2x - 4y = -6.The student claims that (1, 1) and (-1, 2) are the only solutions. Is the student correct?
A. Yes B. No
Solve the problem.A cashier has a total of 123 bills made up of fives and tens. The total value of the money is $715. How many ten-dollar bills does the cashier have?
A. 103 ten-dollar bills B. 30 ten-dollar bills C. 10 ten-dollar bills D. 20 ten-dollar bills
In the following group of computations, one answer is wrong. Use estimation to explain which answer is incorrect.
?
?
?
?
?
/>2.538 5.19 296.3894 What will be an ideal response?