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allsm [11]
4 years ago
5

Explain the diffrences between +8,-8,{8}.

Mathematics
2 answers:
lesantik [10]4 years ago
4 0
+8 means that it is a positive number
-8 means that it is a negative number
I think what you mean by: {8}, is |8| which is absolute value which means no matter the answer it is the absolute value from 0 so it’s always +
Mademuasel [1]4 years ago
3 0

Hello!

First of all, +8 is a positive number. It is a whole number, or a positive integer.

Next, -8 is a negative number. It is an integer but not a whole number.

Finally, {8} is a positive number. It would still be positive if a -8 was put inside of it. The absolute value is the distance from 0 in units, which is always positive.

I hope this helps!

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Explain the differnce between -3^4 and (-3)^4​
Nikitich [7]

Answer:

{ - 3}^{4}  =  - (3 \times 3 \times 3 \times 3) \\  {( - 3)}^{4}  = ( - 3 \times  - 3 \times  - 3 \times  - 3)

7 0
3 years ago
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What is .072 divided by 345.00
nadya68 [22]

Answer:

Step-by-step explanation: if its .072

or if it 0.72/345.00

0.00208695652

7 0
3 years ago
Wall posters are usually sold curled up in cylindrical cardboard tubes. if the length of the tube is 84.5 cm, and the diameter o
LekaFEV [45]
Length of the cylinder = 84.5 cm
Diameter of the cylinder = 2.40 cm

The circumference is
π(2.40 cm) = 2.4π cm.
The area is
A = (2.4π cm)*(84.5 cm) = 637.1 cm²

Answer: a. 637 cm²
8 0
3 years ago
Sofie makes and sells scarves. Her profit depends on what price she charges for a scarf
Mamont248 [21]

Answer:

a) 5<x<25

b) x≤5 or x≥25

c) x≥5 and x≤25

Step-by-step explanation:

Given the expression the

(x - 5) (50 - 2x) to represent sofie profit based on the price per scarf, x.

a) If Sofie's profit is increasing, them the expression for her profit must be greater than zero as shown.

(x - 5) (50 - 2x)> 0

Solving the inequality:

x-5>0 and 50-2x>0

If x-5>0

x > 5 or 5<x... (1)

Similarly when 50-2x>0

50-2x>0

50>2x

Dividing both sides by 2:

50/2>2x/2

25>x or x<25 ...(2)

Combining 1 and 2

5<x<25

b) if Sofie's profit is decreasing, the profit function must be less than or equal to zero as shown;

(x - 5) (50 - 2x)≤0

Solving the inequality

x-5≤0 and 50-2x≤0

x≤5 and 50≤2x

x≤5 or 25≤x

x≤5 or x≥25

c) If Sofia is not making profit then, the function (x - 5) (50 - 2x) is equal to zero i.e

(x - 5) (50 - 2x) = 0

x - 5 = 0 or 50-2x =0

x = 5 and 50 = 2x

x = 5 and x = 25

x≥5 and x≤25

5 0
3 years ago
A diver starts at 5 m and changes -16 m?
Ymorist [56]

Answer:

if your looking for displacment it is 11 meters.

Step-by-step explanation:

you start at 5 then you end up at 16 just subtract 16-5 and there you go\

hope it helped

bye have a buetyfull day

3 0
3 years ago
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