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3 years ago

11

PLEASE I JUS NEED HELP PLEASE

1 answer:

nika2105 [10]3 years ago

4 0

Answer:

I am sorry

Step-by-step explanation:

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A sequence is constructed according to the following rule: its first term is 7, and each next term is one more than the sum of t

Iteru [2.4K]

Answer:

5

Step-by-step explanation:

According to the described rule, we have

$a_1=7\\ \\a_1^2=7^2=49\Rightarrow a_2=4+9+1=14\\ \\a_2^2=14^2=196\Rightarrow a_3=1+9+6+1=17\\ \\a_3^2=17^2=289\Rightarrow a_4=2+8+9+1=20\\ \\a_4^2=20^2=400\Rightarrow a_5=4+0+0+1=5\\ \\a_5^2=5^2=25\Rightarrow a_6=2+5+1=8\\ \\a_6^2=8^2=64\Rightarrow a_7=6+4+1=11\\ \\a_7^2=11^2=121\Rightarrow a_8=1+2+1+1=5\\ \\\text{and so on...}$

We can see the pattern

$a_5=a_8=a_{11}=a_{14}=...=5\\ \\a_6=a_9=a_{12}=a_{15}=...=8\\ \\a_7=a_{10}=a_{13}=a_{16}=...=11$

In other words, for all $k\ge 2$

$a_{3k-1}=5\\ \\a_{3k}=8\\ \\a_{3k+1}=11$

Now,

$a_{2018}=a_{3\cdot 673-1}=5$

7 0

4 years ago

DESPERATELY NEED HELP ON THIS QUESTION

Triss [41]

Angle aed has to be 80 since the two triangles share two of the same angles

5 0

3 years ago

Chen’s house is 53 years old. This is 5 more than twice the age of Sunny’s house, h.

tankabanditka [31]

Answer:

The Equation which shows the equality is 53 = 2 h + 5 ,

The age of Sunny's house is 24 years old

Step-by-step explanation:

Given as ;

The age of the house of Chen's is 53 years old

Let the age of of the house of sunny = h years old

So, according to question

Chen's house age is 5 years more than twice the age of sunny's house

I.e Chen's house age = 2 × sunny's house age + 5

Or, 53 = 2 × h + 5

or, 2 × h = 53 - 5

so . 2 × h = 48

∴ h = $\frac{48}{2}$ = 24 years

Hence The Equation which shows the equality is 53 = 2 h + 5 , And The age of Sunny's house is 24 years old . Answer

5 0

4 years ago

Solve-<br>29-(20-18)×(58×74)

serious [3.7K]

Answer: -4790

Step-by-step explanation:

$= 29 - (20 - 18) \times (58 \times 74) \\ = 29 - 2 \times 4592 \\ = 29 - 4819 \\ \ = - 4790$

8 0

3 years ago

Read 2 more answers

What is the slope of the line that passes through the points (1, 1) and (9,7)?

Zarrin [17]

The answer is 3/4.

Step-By-Step Explanation

Slope Formula:m=y2-y1/x2-x1
Substitute: 7-1/9-1
Answer: 3/4

5 0

3 years ago