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Brrunno [24]
3 years ago
7

Please help me im in online summer school and i need to pass this and exam HELP

Mathematics
1 answer:
Mars2501 [29]3 years ago
8 0

Answer:

I think the correct answer is letter a.

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In an arithmetic sequence, if a2= 5 and a10= 19 find a6
OLEGan [10]

Answer:

a₆ = 12

Step-by-step explanation:

The nth term of an arithmetic sequence is

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given a₂ = 5 and a₁₀ = 19 , then

a₁ + d = 5 → (1)

a₁ + 9d = 19 → (2)

Subtract (1) from (2) term by term to eliminate a₁

8d = 14 ( divide both sides by 8 )

d = 1.75

Substitute d = 1.75 into (1)

a₁ + 1.75 = 5 ( subtract 1.75 from both sides )

a₁ = 3.25

Then

a₆ = 3.25 + 5(1.75) = 3.25 + 8.75 = 12

6 0
2 years ago
Andy wrote the equation of a line that has a slope of Step 2: y plus 2 equals StartFraction 3 Over 4 EndFraction x minus StartFr
nlexa [21]

answer is C

He made an error in Step 3. He should have subtracted 2 from both sides.

4 0
3 years ago
Read 2 more answers
The graph below represents the dimensions of a rectangle. What type of variation do the adjacent side lengths exhibit?
schepotkina [342]
The answer is b because if you look there is no Direct variation
4 0
3 years ago
Read 2 more answers
I need help <br>I need help fast​
german

Answer:

<STP=105°

Step-by-step explanation:

two interior angles equal one opposite exterior angle therefore

7x+6+7x+1=15x

group like terms

6+1=15x-7-7

7=15x-14x

7=x

for 15x

15 will multiply 7 and that is 105

6 0
3 years ago
Help me with this please
Viefleur [7K]

Answer:

how did you take the screenshot

Step-by-step explanation:

7 0
2 years ago
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