The solution set is basically when are they equal. to figure this out we must set them equal. So so we will move some stuff around
x+y=5
y=5-x
y=x^2-25
we know that when they are equal their x and y values are equal. So so we know that their y values are the same so we can say:
y=y
this does not direarly help but looking above we know what both of the y's equal. so:
5-x = x^2-25
we want to set this equal to zero
0 = x^2 +x - 30
now we factor
0 = (x + 6) * (x - 5)
the only way to multiply 2 things together and get zero is for one of those things to equal 0. So so we know that to be zero one of the answers in parenthesis has to equal 0. so:
0 = (x + 6 =0) * (x - 5=0)
So now we solve for both parenthesis
x+6=0
x=-6
x-5=0
x=5
x=-6,5
Answer:
21
Step-by-step explanation:
The ratio of green bars to red bars is 44:33 which simplified is 4:3.
We can set up an equation to find number of red bars:
Since the ratio stays the same, # of green bars / # of red bars = 4/3,
so 200200/x = 4/3 where x = # of red bars.
Now solve for x:
200200/x = 4/3
(cross multiply)
200200*3 = 4*x
600600 = 4x
600600/4 = x
x = 150150
There 150150 red bars if there are 200200 green bars.
Hope this answers your question!
Answer:
For the function V(t)=24300(1.37)t, the rate of increase is 37%.
Step-by-step explanation:
The function represents the value (V) of the car over time (t). This type of function is exponential growth, which means for each year, the value of the vintage car will increase by a rate of 37%. Exponential growth functions are represented by the equation f(x)=ab^x, where 'a'=initial value, 'b'=the rate and 'x' represents time. In this case, our initial value of the car is $24,300 and the rate is 1.37. A rate of 1.37 indicates that the car will retain its initial value (1) as well as increase be an additional 37 percent (.37) over time.
Answer:
21.325 is the correct answer
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</h3><h3>please gimme brainliest :))!!</h3>
