Find the unit vector that has the same direction as the vector v.v = -4i - 3j
A. u = -20i - 15j
B. u = 
i + 
j
C. u = - 
i - 
j
D. u = - 
i - 
j
Answer: D
Mathematics
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Find 
.y = sec-1(4x + 7)
A. 
B. 
C. 
D. 
Mathematics
c = 17, a = 6. Find b.
Mathematics
Write the best-fit linear model for the data.The paired data below consist of the temperatures on randomly chosen days and the amount a certain kind of plant grew (in millimeters). Find a linear function that approximates a plant's growth as a function of temperature. 
A. y = 7.30 + 0.122x B. y = -14.6 - 0.211x C. y = 7.30 - 0.112x D. y = 14.6 + 0.211x
Mathematics
Solve the problem.
Damien Wood has a 15-year home mortgage of $68,500 at 7.00% interest and will pay $334 annual insurance premium. His annual property tax will be $1258. Find her monthly PITI payment.
A. $663.54 B. $748.48 C. $615.82 D. $767.66
Mathematics