Domain is th enumbers you can use and not cause conflict (like dividing by 0 or something)
actually, the domain is all real numbers
there is no real value of x that will make us divide by 0 or take the square root of a negative number
domain is all real numbers
Answer:
KEEP the sign of the first number the same.
CHANGE subtraction to addition.
CHANGE the sign of the second number to the opposite, positive becomes negative, negative becomes positive.
Answer: 7,040 yards
Step-by-step explanation: In this problem, we are asked to convert 4 miles into yards. Unfortunately, we don't have a conversion factor for miles and yards but we do have conversion factors we can work with.
<em><u>Conversion factors</u></em>
5,280 feet = 1 mile
3 feet = 1 yard
We can convert 4 miles into yards by using both of these conversion factors.
Let's first convert 4 miles into feet. Remember that when we go from a larger unit "miles" to a smaller unit "feet" we multiply. We can convert 4 miles into feet by multiplying 4 by the conversion factor which is 5,280 and we will get 21,120 feet.
Next, we convert feet to yards. When we convert feet to yards we are now going from a smaller unit to a larger unit so we divide 21,120 by the conversion factor which is 3 to get 7,040 yards.
Therefore, 8 miles = 7,040 yards.
Answer:
x=6 y=7
(6,7)
Step-by-step explanation:
y=x+1 5x+3y=51
to solve this you can use the substitution method or anotherone i forgot the name of. so in with that being said, the substitution method is the wa to go.
start with the first equasion
5x+3y=51
substitute
5x+3(x+1)=51
distribute
5x+3x+3=51
add like terms
8x+3=51
solve equasion
8x=48
x=6
now onto the next equasion
y=x+1
substitute
y=6+1
add like terms
y=7
