What is one root of this equation? 2x^-4x+9=0
1 answer:
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Answer:
The estimate of the product is about 35 answer C
Step-by-step explanation:
- We use rounding to estimate the product of two fractions
- The mixed number has whole number and fraction
- To round the mixed number we look to the fraction
- If the numerator is half or greater than half the denominator, then we
add the whole number by 1 and cancel the fraction
- If the numerator is less than half the denominator, then we keep the
whole number as it and cancel the fraction
- Ex: If the mixed number is , 3 is more than
half 4 then we will add 2 by 1 and cancel the fraction part, the
mixed number after rounding is 3
- Ex: If the mixed number is , 1 is less than
half 4 then we will keep 5 as it and cancel the fraction part, the
mixed number after rounding is 5
* Lets solve the problem
∵ In the part 3 is more than half 4
∴ The rounding value of is 5
∵ In the part 2 is less than half 17
∴ The rounding value of is 7
∴
* <em>The estimate of the product is about 35</em>
y = slope (x) + y - intercept
To find the slope we need to find out how much the x's and y's increase or decrease...
To find the y - intercept if any, simply look for coordinates ( 0 , y ) or 0 and a #.
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In this case, as time passes, the water level decreases therefore we have a negative slope.
Time is our x and amount (ft) is our y.
On the x side it increases by 2
On the y side it decreases by 10
Now do y over x ==> 10 over 2 and get 5 ==> m
-5 is our slope and 50 is our y - intercept
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The "rate of change" is another word for slope.
Well, slope is - 5ft is our slope.
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I hope that helps you out!!
Any more questions, please feel free to ask me and I will gladly help you out!!
~Zoey