Solve the system.y = 
x + 4y = 7
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.A bullet is fired with a muzzle velocity of 1,236 ft/sec from a gun aimed at an angle of 6° above the horizontal. Find the horizontal component of the velocity.
A. 1,187 ft/sec B. 1,229 ft/sec C. 129.2 ft/sec D. 129.9 ft/sec
Mathematics
Find the exact value of the product.cos 135° cos 45°
A. - 
B. 1
C. 
D. 2
Mathematics
Use technology to calculate det A.A = 
A. 48 B. 31 C. 364 D. 4
Mathematics
Factor the expression completely.48 - 58x - 8x2
A. (8 + x)(6 - 8x) B. (8 + x)(6 + 8x) C. (8 - x)(6 - 8x) D. (8 - x)(6 + 8x)
Mathematics