Answer
x=-5/2
Step-by-step explanation:
2×2+2x+1=0
4+2x+1=0(2×2=4)
4+1+2x=0
5+2x=0
2x=-5
x=-5/2
Answer:
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Step-by-step explanation:
your function is not very clear but I'm assuming it's 2 multiplied by 7^x
first let y be equal to the function
to find the range interchange x and y and make the subject
at some point you'll have to use logarithm to get rid of the exponent
only log of positive numbers numbers exist hence y must be greater than 0
Answer:
honestly I just need likes on this sorry i couldn't help.
Step-by-step explanation:
Answer:
Grant's weekly allowance is $20.
Step-by-step explanation:
We know that Grant ended with $15. We can say that Grant's weekly allowance is x.
x/2 + 5 = 15
Now to solve:
x/2 + 5 - 5 = 15 - 5 (subtract 5 from both sides to isolate the x/2)
x/2 = 10
x/2 * 2 = 10 * 2 (multiply both sides by 2 to isolate the x)
x = 20
Grant's weekly allowance is $20.
Answer is 426,700
Because the tens place is 4 and unless it’s 5 or above the hundreds place doesn’t go up (hopefully that makes sense)
