Answer:
(15, 11).
Step-by-step explanation:
Given the system of equation;
X=2y-7 ..... 1
4x+y=71 ....2
Substitute 1 into2;
4(2y-7) + y = 71
8y - 28 + y = 71
9y - 28 = 71
9y = 71 + 28
9y = 99
y = 11
Substitute y = 11 into 1;
x = 2y - 7
x = 2(11)-7
x = 22-7
x = 15
hence the solution to the equation is (15, 11).
Answer:
dy/dx= 7- 3x^-1/2
when X=1
dy/dx = 4
as it is a tangent M1=M2=4
now,
at gradient 4 and point (1,1)
equation of curve is ,
y-y1= m(x-x1)
or, y-1=4(x-1)
or, y-1=4x-4
or, y-4x= -3
or, 4x-y=3
Uh oh, this is a problem right ok whta is thus
The goal is to put the equation in the simplest form to solve:
2x²+17=179
Subtract both sides by 17.
179-17= 162
2x²=162
Square root 162.
√162 = 12.7 (rounded)
2x=12.7
Divide both sides by 2.
12.7/2= 6.4 (rounded)
x=6.4
The variable x is 6.4, rounded to the nearest tenth for simple purposes.
Hope this was helpful.
