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Irina18 [472]
3 years ago
12

Help !!! Pleaseeeeeeeeee

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
8 0
Answer is 49
Formula is b^2-4(ac)
3^2-4(2*-5) while a=2, b=3, c=-5
9-4(2*-5)
9-4(-10)
9+40
49

Hope this helps!
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Step-by-step explanation:

The difference between the numbers on the calculators is reduced by 10 with each key press. After 10 key presses, the initial difference of 100 will be zero. After 10 key presses of (-7), the calculator starting at 100 will be ...

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