3 years ago

do you agree that not all quadratic equations can be solved by factoring? justify your answer by giving examples.

1 answer:

5 0

In some cases, there are better solutions than factoring. Consider, for example the quadratic equation x^2+x+1, which is much easier to solve using the quadratic formula than by factoring.

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The ages of three siblings are consecutive integers. The sum of their ages is 42. Calculate their ages. *

stealth61 [152]

Answer:

13, 14, 15

Step-by-step explanation:

Let x = age of one of the siblings

Since the age of the siblings are consecutive integers, the age of the next sibling would be x + 1 and the age of the third sibling would be x + 2

x +( x +1) + (x +2) = 42

3x + 3 = 42

collect like terms and solve for x

x = 13

The age of the first sibling is 13

The age of the second sibling is x + 1 = 13 + 1 = 14

The age of the third sibling is x + 2 = 13 + 2 = 15

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3 years ago

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I am Lyosha [343]

Answer:

Your answer to the problem is D

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4 years ago

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1. Determine the value of y, if x is 5 for the function y = x2 -9.

user100 [1]

Sub in 5 for x
y=(5)2 -9
y= 10-9
y= 1

4 0

3 years ago

30 points: 5 star and best answer and thanks. you can leave answers in. A B C or D ty ty ty.

nalin [4]

1, B 2, C 3, C 4, C 5, a 6, b 7, b 8, C 9, a I think. Hoped this helps.

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3 years ago

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Write the standerd form for thirty thousand,four hundred five and three thousandths.

sveta [45]

30 Thousand: 30,000
4 Hundred and Five: 405
3 Thousandths: 3/1000
Final Answer; 30,405 $\frac{3}{1000}$

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3 years ago

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