I need to know which question it is though
The mistake that Danielle made is from the final equation of the polynomial. She did not write the degree of polynomial correctly. It should be 6x⁶ +2x²+ 2x - 8.
<h3>What is polynomial?</h3>
A polynomial is defined as a mathematical expression that has a minimum of two terms containing variables or numbers. A polynomial can have more than one term.
To determine the sum of x³ + 5x²-7 and 5x³ - 3x² + 2x - 1
Danielle's Work :
(x³ + 5x² - 7) + (5x³ - 3x² + 2x - 1)
x³ + 5x³ + 5x² - 3x² + 2x - 7 - 1
6x⁶ +2x⁴ + 2x - 8
She did not write the degree of polynomial correctly
Correct Work :
(x³ + 5x² - 7) + (5x³ - 3x² + 2x - 1)
we have to open the brackets above
x³ + 5x² - 7 + 5x³ - 3x² + 2x - 1
x³ + 5x³ + 5x² - 3x² + 2x - 7 - 1
6x⁶ +2x²+ 2x - 8
Note that Danielle made the error in this step: 6x⁶ +2x⁴ + 2x - 8
The solution for the above is -2x² and not 2x⁴ as she wrote in her final equation.
Hence, the correct polynomial would be 6x⁶ +2x²+ 2x - 8
Learn more about polynomial here:
brainly.com/question/11536910
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<h3>
Answer: a = 37, b=2 and c=2.</h3>
Step-by-step explanation: Given expression 7 + 9/4.
Let us simplify given sum of fractions by taking common denominator, we get

Common denominator is 4.
Therefore, multiplying top and bottom of 7/1 by 4, we get
.
We got same denominators,
So, combining top numbers, we get

We can read 37/4 as 37 divided by 4.
Therefore, 37 ÷ 4.
Let us write 4 as the power of 2.

37 ÷ 
On comparing c÷a^b and 37 ÷ 2^2, we can see..
<h3>a = 37, b=2 and c=2.</h3>
You can put the 2points into a graph in your calculator and do the slope y1~mx1+b it will give you your equation which is y= 2x - 2
1 litre = 1000 ml
500 ml =0.5 litre
0.5 litre = $6
1.5 litre = X
X = 9 ÷ 0.5 = 18