7x5 - 33x4 – 4x2 + 3x + 52 = 0

1 answer:

4 0

Hi there! Don’t forget your order of operations when doing problems like these. You can remember it by the phrase PEMDAS= parentheses, exponents, multiplication/division, addition/subtraction.

The answer I got was 53/3, or in standard for 3x=53z

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Translate each phrase into a variable expression. use n for the variable

gayaneshka [121]

N + 2 that is correct

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4 years ago

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SashulF [63]

The two dinosaurs probably crossed paths at estimated coordinates (- 1, 2.5).

To find where the two equations actually intersect, set them equal to each other.

- 1/2x + 3 = 2x + 4

Subtract 4 from both sides, and add 1/2x to both sides to combine like terms.

2 1/2x = - 1 --> 5/2x = - 1

Multiply by 2/5 on both sides to isolate x

x = - 1(2/5)
x = - 2/5

Now plug in to either of the two equations. I used 2x + 4

- 1/2(- 2/5) + 3 = y
1/5 + 3 = y
y = 3 1/5

The actual coordinates where the dinosaurs crossed paths was (- 2/5, 3 and 1/5).

My original estimate was (- 1, 2 1/2) because based on the graph drawn above the point of interest (the intersection) appears to be below the third unit on the y-axis as well as in between the negative two unit and origin on the x-axis. My estimate was also off because the x-axis is counting by twos which does not necessarily allow for an accurate estimate strictly based on the naked eye.

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4 years ago

For a party in kindergarten balloons of three colors were bought: red, green, and yellow. There were 40 red balloons, the number

marta [7]

Answer: Total number of balloons are 100

and part of balloon is blown up is $\frac{1}{20}$ .