Use the commutative and/or associative property of addition and then simplify.4 + y + 6
A. y + 24
B. 6y + 4
C. y + 10
D. 10
Answer: C
Mathematics
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Find the exact value of the trigonometric expression without the use of a calculator.cos 35° cos 25° - sin 35° sin 25°
A. 
B. 
C. 
D. 
Mathematics
For the problem below, ? is a central angle in a circle of radius r. Find the length of arc s cut off by ?. ? ?= 30°, r = 2 mm. ? If the answer needs rounding, round it to three significant digits. ? s = __________ mm
What will be an ideal response?
Mathematics
Determine the five-number summary of the given data.The test scores of 15 students are listed below.41?45?48?52?5962?64?69?72?778587909495
A. 41, 51.00, 70.5, 85.5, 95 B. 41, 51.00, 69, 85.5, 95 C. 41, 52, 69, 87, 95 D. 41, 52, 70.5, 87, 95
Mathematics
Divide. Simplify if possible.(x + 10) ÷ 
A. -(x - 10)(x + 10)
B. - 
C. - 
D. -1
Mathematics