Answer:
a. it has no solution
b. you can only substitute by making either the 'x' or 'y' the subject of either of the two equations.
Step-by-step explanation:
3x - 9y = -13.............. eqn 1
x - 3y = -7................... eqn 2
from eqn 2
x - 3y = -7, substitute by making 'x' the subject
x = -7 + 3y.................. eqn 3
put eqn 3 into eqn 1
3x - 9y = -13
3( -7 + 3y) - 9y = -13
-21 + 9y - 9y = -13
9y - 9y = -13 + 21
0 = 8, which is not possible.
Ok so first multiply .36 (decimal notation ) by 75.
You will get 27. That is it.
Answer:
1.25 x 10⁷ km
Step-by-step explanation:
Distance QR = √(3.5 x 10⁶)² + (1.2 x 10⁷)²
= √12.25 x 10¹² + 1.44 x 10¹⁴
= √10¹² (12.25 + 144)
= 10⁶ x 12.5
= 1.25 x 10⁷ km
Values that can makes an inequality a true statement are called the solution set. It <span> is the </span>set<span> of values that satisfy a given </span>set of equations or inequalities. Hope this answers the question. Have a nice day. Feel free to ask more questions.
I guarantee that B and C are the correct answers because in D the 4 (sine it is common)could be placed in front of the brackets and after simplifying in A the answer doesn’t work
