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vodka [1.7K]
4 years ago
9

How do you model -9-(-4) with interger chips

Mathematics
1 answer:
Sloan [31]4 years ago
8 0

Explanation:

Start with 9 negative chips, for a value of -9.

Take away (subtract) 4 of the negative chips. This is modeling - (-4).

You will be left with 5 negative chips.

  -9 - (-4) = -5

__

Each negative chip in this scenario models -1. The actions you're doing with the chips are full equivalent to the actions you would do for the subtraction problem 9 - 4 = 5, except that the numbers (chips) are negative, not positive.

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Whats the value of x?
Nutka1998 [239]

Answer:

x = 8 units, measure of angle AFE = 60 degrees, measure of angle CFD = 60 degrees

Step-by-step explanation:

Finding x:

You know all three of the given measures add up to 180 because they are on the same side of the line. Write an equation and solve for x.

6x + 2 + 8x + 6 + 7x + 4 = 180

21x = 168 --> x = 8

Angle AFE:

Substitute the value of x in the given measure.

7x + 4 = 7*8 + 4 = 56 + 4 = 60

Measure of angle CFD:

Angle AFE is it's vertical angle, so their measures (60 degrees) are equal.

7 0
3 years ago
Evaluate the function f (x)= x squared -4x+1 at the given values of the independent variable and simplify.
Ivan
<h3>Given</h3>

... f(x) = x² -4x +1

<h3>Find</h3>

... a) f(-8)

... b) f(x+9)

... c) f(-x)

<h3>Solution</h3>

In each case, put the function argument where x is, then simplify.

a) f(-8) = (-8)² -4(-8) +1 = 64 +32 + 1 = 97

b) f(x+9) = (x+9)² -4(x+9) +1

... = x² +18x +81 -4x -36 +1

... f(x+9) = x² +14x +46

c) f(-x) = (-x)² -4(-x) +1

... f(-x) = x² +4x +1

8 0
3 years ago
A textbook store sold a combined total of 294 physics and psychology textbooks in a week. The number of psychology textbooks sol
miv72 [106K]

Answer:

105 psychology textbooks. 189 physics textbooks.

5 0
3 years ago
Can someone please explain how to do c i thank you
maksim [4K]

i) first you combine the like terms; 3x² and x², then 4x and -8x, then -7n and -1.

Then you would get 4x²-4x-8.

You then cannot simplify further. so your answer would be 4x²-4x-8.

4 0
4 years ago
Read 2 more answers
Someone help i’m taking a test!
Ulleksa [173]

Answer:

the answer is d

Step-by-step explanation:

The graph is increasing by a distance of 35 each hour, showing that the bear is running 35 mph

hope this helps, have a wonderful day :))

5 0
3 years ago
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