
A negative power is equal to 1/that to the positive power.
Answer:
NO SOLUTION
Step-by-step explanation:
We can make this problem easier to understand if we write the system vertically:
2x-y=7
y=2x+3
and then rewrite the first problem in the form y = mx + b:
2x-y=7 ↔ y + 7 = 2x ↔ y = 2x + 7
y=2x+3
Note how these two equations have the same slope, but different y-intercepts. This tells us that the two lines are parallel, which in turn tells us that they never intercept one another.
Thus, this system has NO SOLUTION.
Answer:
27. (2x + 3)(x + 5)
Step-by-step explanation:
27.
Use the 'ac' method
a*c = 2 * 15 = 30
We need 2 numbers whose product is 30 and whose sum is 13.
3 and 10 look good so we write
2x^2 + 10x + 3x + 15
= 2x(x + 5) + 3(x + 5)
= (2x + 3)(x + 5) answer
Olivia ran 3.5 miles in Saturday and Sunday
Answer:
P - 4
Step-by-step explanation:
there are 12 collectors donating a total of 48 paintings.
48/12=4
each collector will donate 4 paintings.
Sergio has (p) paintings now, so after he donates 4 paintings, he will have p-4 paintings in his art collection.
Sergio will have p-4 paintings in his art collection after his donation