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Ivanshal [37]
2 years ago
5

2. Evaluate each expression: a.-1.2.3 - b.-1. (-2) 3 C. -1 • (-2).(-3)

Mathematics
1 answer:
rodikova [14]2 years ago
3 0

Answer:

a. -6

b. +6

c. -6

Step-by-step explanation:

minus times plus times plus = -

minus times minus times plus = +

minus times minus times minus = -

1 times 2 times 3 = 6

so:

-1 times 2 times 3 = -6

-1 times -2 times 3 = +6

-1 times -2 times -3 = -6

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You have 24 feet of fencing that you are using to make a rectangular dog pen. You want the dog pen to enclose 150 square feet. I
melamori03 [73]

Answer:

Not possible

Step-by-step explanation:

Given that

The area of the pen is 150 ft²

Assuming that the length of the pen is x, then the breadth of the pen will be 24 - x

Area = length * breadth

Area = x (24 - x)

Area = 24x - x²

24x - x² = 150

x² - 24x + 150 = 0

Using general quadratic formula, we have

[-b ± √(b² - 4ac)]/ 2a

Where

a = 1

b = -24

c = 150

On solving the equation, we get a number in the complex form of "i", and not a real number. As such, it's not possible for the 24 feet to enclose the area

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3 years ago
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Andru [333]
The correct answer is 5 cents. The coat of the bat is $1.05
6 0
3 years ago
Help please! I need help with this two step equations
kykrilka [37]

Answer:

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7 0
2 years ago
Read 2 more answers
Can you please tell me what’s wrong in this plot?<br><br> I can’t see what.
Readme [11.4K]

Answer:

The Upper Quartile would not be 59.  It would be 60.5.

Step-by-step explanation:

The Upper Quartile would not be 59.  It would be 60.5.

7 0
2 years ago
Write the simplest polynomial function for each set of zeros<br><br> Zeros = -2, 5, -1
deff fn [24]

Answer:

The polynomial is ;

x^3 -2x^2 -13x - 10

Step-by-step explanation:

Given the zeros, we set them to equal zero so as to get the linear factors

Mathematically, that will be as follows;

x = -2

x + 2

x = 5

x-5

x = -1

x + 1

So we have the polynomial as;

(x + 1)(x + 2)(x-5)

= (x -5)(x^2 + 3x + 2)

= x^3+ 3x^2 + 2x -5x^2 -15x - 10

= x^3 -2x^2 -13x - 10

5 0
3 years ago
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