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VikaD [51]
3 years ago
10

Solve the equation: (-11) + [9] =

Mathematics
2 answers:
Arada [10]3 years ago
7 0
Negative two is the answer
Sidana [21]3 years ago
5 0

Answer:

-2

Step-by-step explanation:

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Select the sets that are not functions.
Kaylis [27]

Answer:

D,E are not functions

Step-by-step explanation:

A function is a relation in which every  input has not more than one output.But the output of the inputs may be same.Here in D the input 1 has 4 different outputs as 1,2,3,4.So its not a function.Similarly in E 6 has 2 outputs as 2 and -1.For remaining sets the inputs has only one output.so they are functions.

7 0
3 years ago
Plz help me for 14. A and B it is 93 points
AVprozaik [17]
A. Stiles. For Melendez, each family member uses about 390 kilowatts of electricity. For Barton, each family member uses about 355 kilowatts of energy. Stiles uses 745 kilowatts per family member. 745 divided by 355 rounds up to 2 while 745 divided by 390 rounds up to 2. This means that the Stiles family uses twice the amount of electricity per person than the other families.

b. The Melendez family. The Melendez family uses 875 gallons per family member. The Barton family uses about 1067 gallons of water while the Stiles family uses about 1250 gallons. 875< 1067< 1250. This means that the Melendez family uses the least amount of water per family member.
6 0
3 years ago
Read 2 more answers
Someone answer this please (6)
postnew [5]
7+ (-5) = 2.
Therefor, 4^2 would be the right answer.
7 0
2 years ago
6x - 2 ( x + 4 )= 12
ElenaW [278]

Answer:

x = 5

Step-by-step explanation:

5 0
2 years ago
A mole of 1 gallon cans of paint could cover every square inch of the surface of how many planets the size of the earth?
Nady [450]

Answer:

The answer is 4.4*10^1^0 planets

Step-by-step explanation:

We ll have to find more information first to solve this question.

1. One mole = 6.022 x 10^23

Assuming one gallon of paint covers the 400 sq ft of area.

Thus total area which can be covered by 1 mole of gallon is

=6.022*10^2^3 * 400\\=2.40*10^2^6

2. Now we will find the surface area of earth

Area = 4\pi R^2

The radius of earth is 2.1 x 10^7 Feet

substituting values

Area = 4*3.14*(2.1*10^7)^2\\Area = 5.5*10^1^5ft^2

3. Now we will find out the number of planets of earth size which can be covered by mole of gallon of paint

= Total area one mole of gallon can cover / area of earth

= 2.40 * 10^2^6/5.5*10^1^5\\=4.4*10^1^0 planets

6 0
3 years ago
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