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4 years ago

Evaluate the following expression. (-3)-2

1 answer:

3 0

Integers are whole numbers that are either positive or negative. Operation of signs is important when dealing with integers.
In this case, -3 and -2 are integers that are being added.
if we add -3 by -2 we get -6 because when a negative number is added to a negative number the negative sign does not change
thus, (-3)-2 = -5

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A rectangle has a length of 17 less than 6 times it's width. If the area of the rectangle is 7585 square feet find the length of

anzhelika [568]

9514 1404 393

Answer:

205 ft

Step-by-step explanation:

Let w represent the width of the rectangle. Then the length is (6w-17) and the area is ...

A = LW

7585 = (6w-17)(w)

6w² -17w -7585 = 0

Perhaps most straightforward is using the quadratic formula to solve this.

For ax² +bx +c = 0, the solution is x = (-b±√(b²-4ac))/(2a). For the above quadratic, the solution is ...

$x=\dfrac{-(-17)\pm\sqrt{(-17)^2-4\cdot6\cdot(-7585)}}{2\cdot6}=\dfrac{17\pm\sqrt{182329}}{12}\\\\x=\dfrac{17\pm427}{12}=\{-34\frac{1}{6},37\}$

The width is 37 feet, so the length is ...

6(37) -17 = 205 . . . feet

The length of the rectangle is 205 feet.

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3 years ago

Given P(A) = 0.6 and P(B) = 0.8, do the following. If A and B are independent events, compute P(A and B)

DochEvi [55]

Answer:

0.48

Step-by-step explanation:

$0.6*0.8 = 0.48$

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3 years ago

hey guys if u can look exercises page with this ill be thankful i just wanna have an a in my test they are like these -8y+12y=3-

blagie [28]

Answer:

okay I'll check then let you know

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3 years ago

The volume of 10 drops of liquid is 0.1 fl oz. What is the volume of 1000 drops

Angelina_Jolie [31]

Good Evening.

We have the following:

10 drops → 0.1 fl oz
1000 drops → V

We multiply in cross:

10V = 1000 * 0.1

10V = 100

V = 100 / 10

V = 10 fl oz.

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4 years ago

Which characteristic is correct for the function

JulijaS [17]

Answer:

Even function

Step-by-step explanation:

Both powers of x in f(x) = -3x^4 + 7x^2 are even, so f(x) = -3x^4 + 7x^2 is an even function.

4 0

3 years ago

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