Substitute - 3 for a and 8 for b in the given equations. Tell whether each
statement is true or false after substituting for a and b.*
5 points
The equation 5x - 7(x - 1) = ax
+ b has exactly one solution.
0
The equation 3(5 - x) - 7 = ax
+ b has no solution
0
The equation 2 - 7x + 3 + 4x =
ax + b has no solution.
0
The equation-3(x - 3) - 1 = ax
+ b has infinitely many
solutions
0
The equation -5x + 2 + 2x + 4
= ax + b has infinitely many
solutions.
0

the answer is 96 degrees

step-by-step explanation:

you have to realize that a line equals 180 degrees

the value of v.w= -12.

step-by-step explanation:

we are given three vector r,v and w as:

r = < 5, -5, -2> ; v = < 2, -8, -8> ; w = < -2, 6, -5>

we know that r,v and w could also be represented as:

r=5i-5j-2k

v=2i-8j-8k

and w= -2i+6j-5k

where i,j and k are the unit vectors of x,y and z-axis respectively.

also we know that it has the following property:

i.i=1 ; j.j=1; k.k=1

and i.=j.i=i.k=k.i=j.k=k.j=0

i.e. when we multiply two vectors or we find it's dot product we need to only multiply the components of x coordinates with each other; y with each other and z with each other.

hence, v.w= (2i-8j- -2i+6j-5k)

                  = 2×(-2)+(-8)×(6)+(-8)×(-5)

                  = -4-48+40

                  = -12

hence, v.w= -12

.there can be infinite values of m and n that can satisfy the above equation. for each value of m of m or n. there maybe infinite sets of solution for the above

step-by-step explanation: