- y=2x²+6x+1
- y=-4x²+1
Make the equations equal and solve for x
- 2x²+6x+1=-4x²+1
- 6x²+6x=0
- 6x(x+1)=0
- 6x=0 or x+1=0
- x=0 or x=-1
For x=0
- y=-4(0)+1=1
For x=-1
- y=-4(1)+1=-3
The solutions are
- (0,1) and (-1,-3)
Graph attached
Abril earned a total of $60 mowing lawns around her neighborhood. she charges $8 an hour and received $20 in tips .use the equat
1 answer:
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Solution:
When two number cubes are rolled,
Sample space= Total Possible outcome {11,22,33,44,55,66,12,21,13,31,14,41,15,51,16,61,23,32,24,42,25,52,26,62,34,43,35,53,36,63,45,54,46,64,56,65}=36
Probability of an event =
Sum of 4 is obtained when ={13,31,22}=3
Probability of getting 4 when 2 number cubes are rolled=
Sum of the numbers is greater than 9= 10, 11,12={55,64,46,56,65,66}=6
Probability of getting(Sum of the numbers is greater than 9)=
Answer:
2) 2x = y + 13
Step-by-step explanation:
We have to translate the given information into an equation. We don't know what the numbers are yet, so let the first number be represented by the variable x and the second number be represented by the variable y.
Start by breaking the sentence apart. "2 times the first number" gives us . The "is" in the sentence means that
equals something, bringing us to
. Finally, it says "13 more than the second number." 13 more would mean you have to add to the second number, represented by y, so this gives us
. Put it all together and it is
.