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hammer [34]
3 years ago
12

Choose the definition for the function.

Mathematics
1 answer:
nikdorinn [45]3 years ago
5 0

Answer:

B

Step-by-step explanation:

For x<=0, the equation is 2x+2 and hence option B is the answer.

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Find the sum of the first 6 terms of the following series, to the nearest integer.
natka813 [3]

Answer:

1008

Step-by-step explanation:

geometric sequence:

a=16

r=32/16=2

Sum of GS:

s=a(1-r^n)/(1-r)

S(6)=16(1-2^6)/(1-2)

=1008

8 0
3 years ago
What 2+2 pleas help emergeacny
saveliy_v [14]

Answer:4

Step-by-step explanation:

i think?

maybe 5

5 0
2 years ago
Read 2 more answers
Reverse the two digits of my age, divide by three, add 20, and the result is my age. How many years old am I
lapo4ka [179]

Answer:

  • 48 years old.

Step-by-step explanation:

Let the age be xy or 10x + y.

Reverse the two digits of my age, divide by three, add 20, and the result is my age, convert this to equation:

  • (10y + x)/3 + 20 = 10x + y
  • (10y + x)/3 = 10x + y - 20
  • 10y + x = 3(10x + y - 20)
  • 10y + x = 30x + 3y - 60
  • 30x - x + 3y - 10y = 60
  • 29x - 7y = 60

We should consider both x and y are between 1 and 9 since both the age and its reverse are 2-digit numbers.

Possible options for x are:

  • 29x ≥ 7*1 + 60 = 67 ⇒ x > 2, at minimum value of y,

and

  • 29x ≤ 7*9 + 60 = 123 ⇒ x < 5, at maximum value of y.

So x can be 3 or 4.

<h3>If x = 3</h3>

  • 29*3 - 7y = 60
  • 87 - 7y = 60
  • 7y = 27
  • y = 27/7, discarded as fraction.

<h3>If x = 4</h3>

  • 29*4 - 7y = 60
  • 116 - 7y = 60
  • 7y = 56
  • y = 8

So the age is 48.

6 0
1 year ago
(14x-5)-(-3x+2)<br><br>A. 11x-3<br>B. 17x-7<br>C. 17x-3<br>D. 11x-7
Vladimir [108]
The answer would be B) 17x-7
4 0
3 years ago
12-8÷2=8 but, (12-8)÷2=2<br><br>​
Aneli [31]

Answer:

hope it helps you to understand

6 0
3 years ago
Read 2 more answers
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