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andrey2020 [161]
3 years ago
8

Evaluate 6x ÷ 3y - 4, if x = 20 and y = 2

Mathematics
2 answers:
FrozenT [24]3 years ago
8 0
 I solved it and i think the answer is 20 :)
mezya [45]3 years ago
5 0
6x ÷ 3y - 4

6(20) ÷ 3(2) - 4

120 ÷ 6 - 4

20 - 4

= 16. The answer is 16.
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If f(x)=3x^2-2x+4 and g(x)=5x^2+6x-8,find (f-g) (x)
lawyer [7]

Answer:

-2x^2-8x+12

Step-by-step explanation:

f(x)=3x^2-2x+4

g(x)=5x^2+6x-8

(f-g) (x)= 3x^2-2x+4 - (5x^2+6x-8)

Distribute the minus sign

(f-g) (x)= 3x^2-2x+4 - 5x^2-6x+8

Combine like terms

          =-2x^2-8x+12

4 0
3 years ago
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Wanda bought 4 plastic discs. Each disc weighs 0.7 ounces. How much do the 4 plastic discs weigh in all?
Lady_Fox [76]

Answer:2.8 oz

Step-by-step explanation:

0.7 oz per disk

So you multiply.7 by the amount of disks which is 4 and you get 2.8

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3 years ago
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Rus_ich [418]

Answer:

C. k is greater than zero.

Step-by-step explanation:

We know that graph is obtained from the function of the form f(x) = a\cdot (x+k)^{1/n} + c. According to the graph and if x + k = 0, we find that:

x = -k (1)

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By (1) and (2):

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6 0
3 years ago
What is 14 times 13 divided by 9 plus 8
AleksandrR [38]

As there are no parenthesis, Follow PEMDAS and go from left to right


14 x 13 = 182

182/9 = 20.22

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28.22 is your answer


hope this helps

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mart [117]

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Nothing too simplified in this. That's in its most simplified form.

Step-by-step explanation:

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