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lapo4ka [179]
3 years ago
7

A bag contains a total of 300 red chips and white chips. Suppose a student chooses a chip out of the bag, records the color, and

then places the chip back in the bag. The student has recorded 29 red chips and 21 white chips. Using this result, what is the BEST prediction for the number of red chips in the bag?
Mathematics
1 answer:
Jlenok [28]3 years ago
5 0

Answer: 174 red chips

Step-by-step explanation:

A bag contains a total of 300 red chips and white chips. A student chooses a chip out of the bag, then records the color, and places the chip back in the bag. By doing this, the student recorded 29 red chips and 21 white chips.

To predict the number of red chips in the bag using this method goes thus:

Number of red chips picked= 29

Number of white chips picked= 21

Total number of chips= 29+21 = 50

So, the student picked 29/50. Out of 300 chips, number of reds that will be picked will be:

= 29/50 × 300

= 29 × 6

= 174 red chips

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Define a polynomial that is a difference of squares. How do you know that it is the difference of squares? How is it factored?
yulyashka [42]

Answer:

When an expression can be viewed as the difference of two perfect squares, i.e. a²-b², then we can factor it as (a+b)(a-b). For example, x²-25 can be factored as (x+5)(x-5). This method is based on the pattern (a+b)(a-b)=a²-b², which can be verified by expanding the parentheses in (a+b)(a-b).

Step-by-step explanation:

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Here you go, your equation should look a lot like this:

x²-16 -----> (x+4)(x-4).

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3 years ago
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                                                           Part A)

Given

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  • Point (7, 2)

Using the point-slope form of the line equation

y-y_1=m\left(x-x_1\right)

where

m is the slope of the line

(x₁, y₁) is the point

In our case:

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substituting the values m = 6 and the point (x₁, y₁) = (7, 2) in the point-slope form of the line equation

y-y_1=m\left(x-x_1\right)

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Therefore, the equation in​ point-slope form for the line having the slope m = 6 and containing the points (7,2) will be:

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Given

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  • Point (3, 8)

Using the point-slope form of the line equation

y-y_1=m\left(x-x_1\right)

where

m is the slope of the line

(x₁, y₁) is the point

In our case:

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substituting the values m = -3 and the point (x₁, y₁) = (3, 8) in the point-slope form of the line equation

y-y_1=m\left(x-x_1\right)

y - 8 = -3(x-3)

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Answer:

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son:  4 + x years old

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