Answer:
The correct ordered pair is (7,1)
Step-by-step explanation:
The given system has equations:


We make x the subject in the first equation to get:

Put equation 3 into equation 2 to get:

Expand:




Put y=1 into equation 3 and solve for x.

The correct ordered pair is (7,1)
Answer:
This is for Sine Cosine and Tangent: triangle ABC, B is a right angle, the length of side AB is 12, the length of side BC is 5, the length of side AC is 13.
Find Sin of A, Cos of A, Tan A, Sin of C, Cos of C, and Tan of C.
Triangle XYZ, Y is a right angle, the length of XY is 20, the length of YZ is x, the length of XZ is 29.
Find Sin of D, Cos of D, Tan of D, Sin of E, Cos of E, and Tan of E.
Step-by-step explanation:
Answer:
1.x^1=1.73205,x^2=1.73205 2. x^1=-2.5,x^2=-3/2 3.x=74
Step-by-step explanation:
Answer:
The first 3 installments of Mr. X were $ 180.
Step-by-step explanation:
Since Mr X arranges to pay off a Debt of $ 9600 in 48 annual installments which form an AP, and when 40 of these installments are paid, Mr X become insolvent, and he still owe his creditor $ 2400, to find the value of each of the first three installments of Mr X the following calculation must be performed:
((9,600 - 2,400) / 40) = X
7,200 / 40 = X
180 = X
Therefore, the first 3 installments of Mr. X were $ 180.