Answer:
1
Step-by-step explanation:
Let x represent the number. The given relation is ...
x² +(x+3)² = 17
2x² +6x +9 = 17 . . . . simplify
x² +3x -4 = 0 . . . . . . subtract 17 and divide by 2
(x +4)(x -1) = 0 . . . . . factor
The solutions make these factors zero: -4 and +1. The positive solution is 1.
The number is 1.
It is "D" because the equation is 2*3.14*25=157m
Hope That helps!
Answer:
4x + 15y = 12
Step-by-step explanation:
The standard form of a linear equation is Ax + By = C where A and B cannot be fractions and A is not negative. To write in standard form, move -5/2y to the other side of the equal sign. Then clear the denominators by multiplying the equation by 6.
2/3x=-5/2y+2
2/3x + 5/2y = 2
6(2/3x + 5/2y = 2)
4x + 15y = 12
Answer:
X= -15 is the correct answer