Answer:
2x^2+14x-240=0
Step-by-step explanation:
Remember Pythagoras's theorem?
a^2+b^2=c^2
So over here,
x^2+ (x+7)^2= 17^2 [ we need to now simplify (x+7)^2 --> (x+7) (x+7) ]
x^2+ x^2+7x+7x+49= 289
2x^2+ 14x+49= 289
2x^2+14x+49=0 [ we need to make the right side zero coz thats
the rule for ]
2x^2+14x-240=0
(idk, but i think the "show that x^2.....) is wrong)
The answer is D. If you take the number he had yesterday and divide it by 3 and subtract 1 you will get what he had today.
308 is greater than 215.06
Solution:
Given data: 215.6 ÷ 0.7
Let us first convert the fraction without decimal.
To remove a decimal point multiply and divide the fraction by 10.
If we divide 2156 by 7, we get quotient as 308.
Now, to compare the quotient with the number 215.06.
308 > 215.06
Hence, 308 is greater than 215.06.
28 is the "100%" in this equation so all you need to do is take the number that is not the 100% and divide it by the 100% number. so
21/28
comment for more help if you need it for future problems
Answer:
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