The equation based on the information given will be 2x⁴ + 9x³ - x⁴ - 36x - 16 = 0
<h3>How to illustrate the error?</h3>
It should be noted that the information is simply to compute the value properly. This will go thus:
(x + 4)(x + 2)(2x + 1)(x - 2) = 0.
She multiplied (x + 2)(x - 2) correctly and got x² - 4.
She then made a mistake in multiplying (x + 4)(2x ,+ 1).
Therefore, the second step should be (x² - 4)(2x² + 9x + 4).
The next step will be:
2x⁴ + 9x³ + 4x² - 8x⁴ - 36x - 16 = 0
Therefore, the equation based on the information given will be 2x⁴ + 9x³ - x⁴ - 36x - 16 = 0
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Answer:
The answer is B
Step-by-step explanation:
The max for a percentage is 100%, so if you think that 87/100 is a percent, that would be 87%, or b
That is a parallelogram and the area is 75 cm squared.
Answer:
A and D
Step-by-step explanation:
Total ice cream bars sold = sum of chocolate sold , vanilla and strawberry ice-creams sold.
=(1/2)x2 + (6/11)x + 8 + (5/9)x2 + (2/3) +(1/3)x2 + 4x +(4/3) (Given in the question)
=(25/18)x2 + (50/11)x + 10 (Adding terms corresponding to x2,x ,constant respectively)
Difference in chocolate and strawberry bars =[ (1/2)x2 + (6/11)x + 8] - [(1/3)x2 + 4x +(4/3)]
= (1/6)x2 - (38/11)x +(20/3)
So, the correct options are A and D