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avanturin [10]
2 years ago
12

Decide if the expression is positive or negative. Explain in words how you know, please.

Mathematics
1 answer:
AysviL [449]2 years ago
7 0

Step-by-step explanation:

The first expression is :

-11\times \dfrac{2}{3}

Numerator = -11×2 = -22

Denominator = 3

So, answer will be :

-11\times \dfrac{2}{3}=\dfrac{-22}{3} (negative)

The second expression is:

-11\times \dfrac{-2}{3}

Numerator = -11×-2 = 22

Denominator = 3

So, the answer will be :

-11\times \dfrac{-2}{3}=\dfrac{22}{3} (positive)

Hence, this is the required solution.

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A computer repairman charges $30 to come to a home or office , plus $22 per hour of work.During one week, he visits 15 homes or
timofeeve [1]
31 hours.
first I times $30 by 15, an I got 450, then I got 1132 and took away 450 and I got 682, finally I divide 682 by 22 and got 31
3 0
3 years ago
+
viva [34]

Answer:

(x - 1) (x + 2) (x + 4)

Step-by-step explanation:

Factor the following:

x^3 + 5 x^2 + 2 x - 8

The possible rational roots of x^3 + 5 x^2 + 2 x - 8 are x = ± 1, x = ± 2, x = ± 4, x = ± 8. Of these, x = 1, x = -2 and x = -4 are roots. This gives x - 1, x + 2 and x + 4 as all factors:

Answer: (x - 1) (x + 2) (x + 4)

6 0
3 years ago
Read 2 more answers
Amy and Fraser walk inside a circular lawn. Point O is the center of the lawn, as shown below: A circle is drawn. The center of
Assoli18 [71]

Answer:

Both Amy and Fraser walk distances equal to the radius of the lawn.

Step-by-step explanation:

The radius of a circle is a line segment from the center to the outside edge (circumference).

Amy walks from O, the center, to A, along the outside edge, using segment OA.  This is a radius of the circle.

Fraser walks from O, the center, to B, along the outside edge, using segment OB.  This is a radius of the circle.  

Thus the correct answer is that both Amy and Fraser walk distances equal to the radius of the lawn.

6 0
3 years ago
Read 2 more answers
Which expression is same as 5 divided 4
Y_Kistochka [10]

Answer: 1.25*4

Step-by-step explanation: 1.25 multiplied by 4

5 0
3 years ago
(50 POINTS! HELP!)
aniked [119]

Answer:

The roots of the given equation is x=4,3i,-3i

Step-by-step explanation:

The given cubic equation is

y=x^3-4x^2+9x-36

To find the roots we have to equate the equation to zero

ie, x^3-4x^2+9x-36=0

It can be done by using Synthetic division method

Therfore [tex](x-1) is not a factor or root

now put x=-1

Therfore [tex](x-1) is not a factor or root

similarly let x=2,-2,3,-3 all not equal to zero so the are not roots.

let x-4 is a factor of given equation

then it satifies the equation ie (x-4) is a root

And it may be written as

[tex](x-4)(x^2+9)

7 0
3 years ago
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