Provide an appropriate response.Explain why the decimal points must be lined up vertically when adding decimal numbers.
What will be an ideal response?
Digits in different place values cannot be combined.
Mathematics
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Provide an appropriate response. How many successive 10% discounts are necessary to lower the price of an item to below 50% of its original price? Justify your answer.
What will be an ideal response?
Mathematics
Multiply.5x6(-6x + 7)
A. -30x7 + 7 B. -30x + 35 C. -30x7 + 35x6 D. 5x6
Mathematics
Suppose ABC is a right triangle with sides of lengths a, b, and c and right angle at C. Find the unknown side length using the Pythagorean theorem and then find the value of the indicated trigonometric function of the given angle. Rationalize the denominator if applicable.Find cos A when a = 
and c = 6.
A. 
B. 
C. 
D. 
Mathematics
Express the rational expression in lowest terms.
A. 
B. - 
C. 
D. 
Mathematics