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stiv31 [10]
3 years ago
5

What is the answer for thi problem 6×(7+13)-50

Mathematics
2 answers:
mash [69]3 years ago
7 0

Answer:

70

Explanation:

[Assuming 'x' means to multiply]

6(7 + 13) - 50

Follow order of P.E.M.D.A.S.

7 + 13 = 20

6 · 20 = 120

120 - 50 = 70

<u>Therefore your answer is 70</u>

vesna_86 [32]3 years ago
5 0

Answer:

6×(7+13)-50= <u>70</u>

Step-by-step explanation:

First, solve the problem inside the parenthesis.

6×20-50

Now, multiply 6 times 20.

120-50

Subtract to get the final answer.

120-50= 70

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-3x

Step-by-step explanation:

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3 years ago
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The rate of change of a bacteria (N) with respect to time is directly proportional to itself. When t=0, N=500. When t=4, N=3000.
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Fine the average rate of change by the difference in N over the difference in T:

3000 - 500 / 4-0 = 2500 / 4 = 625

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The decay rate can be found by dividing -ln(2) by the half life.

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Part 1. Please show work. Please assist me with these math problems. ​
Vitek1552 [10]

Answer: 1) 2, 3, 4, 9, 32, 279, 8896, 2481705, 22077238784

              2) 2,490,924

              3) Neither

<u>Step-by-step explanation:</u>

S_n=S_{n-2}\cdot (S_{n-1}-1)\quad \\\\S_1=2\quad given\\S_2=3\quad given\\S_3=S_1(S_2-1)\quad =2(3-1)\quad =4\\S_4=S_2(S_3-1)\quad =3(4-1)\quad =9\\S_5=S_3(S_4-1)\quad =4(9-1)\quad =32\\S_6=S_4(S_5-1)\quad =9(32-1)\quad =279\\S_7=S_5(S_6-1)\quad =32(279-1)\quad =8,896\\S_8=S_6(S_7-1)\quad =279(8896-1)\quad =2,481,705\\S_9=S_7(S_8-1)\quad =8896(2481705-1)\quad =22,077,238,784

\sum^8_{k=1}S_k\\\\=S_1+S_2+S_3+S_4+S_5+S_6+S_7+S_8\\\\= 2,490,924\\

Neither

Not arithmetic because the difference between each of the terms is not the same.            

                        S₂ - S₁          S₃ - S₂           S₄ - S₃      

                      3 - 2 = 1       4 - 3 = 1          9 - 4 = 5

Not geometric because the ratios between each of the terms is not the same.                

                       \dfrac{S_2}{S_1}=\dfrac{S_3}{S_2}\qquad \rightarrow \dfrac{3}{2}=\dfrac{4}{3}\qquad \rightarrow \text{cross multiply to get}: 9\neq 8

8 0
3 years ago
Randy and Sandy have a total of 20 books between them. After Sandy loses three by leaving them on the bus, and some birthday gif
Xelga [282]
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3(5b+1)(5b-1)
hope it helps
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