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tiny-mole [99]
3 years ago
11

The second term of an arithmetic sequence is -39. The rule a, = a -1 + 12 can be used to find the next term of the

Mathematics
2 answers:
siniylev [52]3 years ago
4 0

Step-by-step explanation:

the first one is the correct one

a, = -51+12(n-1)

a(2) = -51+12(2-1)=-39

I hope this helps

Im sure from the answer

but I couldnt explain it exactly

Lubov Fominskaja [6]3 years ago
4 0

Answer:

A. an = -51+12(n-1)

Step-by-step explanation:

edge quiz

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Is this correct for number 3.
pashok25 [27]
The answer would be correct. hope that helped
7 0
3 years ago
A sector of a circle makes a 127° angle at its centre. If the arc of the sector has length 36 mm, find
Veseljchak [2.6K]

Answer:

Approximately 68.5\; \rm mm.

Step-by-step explanation:

Convert the angle of this sector to radians:

\begin{aligned}\theta &= 127^{\circ} \\ &= 127^{\circ} \times \frac{2\pi}{360^{\circ}} \\ &\approx 2.22\end{aligned}.

The formula s = r\, \theta relates the arc length s of a sector of angle \theta (in radians) to the radius r of this sector.

In this question, it is given that the arc length of this sector is s = 36\; \rm mm. It was found that \theta = 2.22 radians. Rearrange the equation s = r\, \theta to find the radius r of this sector:

\begin{aligned} r&= \frac{s}{\theta} \\ &\approx \frac{36\; \rm mm}{2.22} \\ &\approx 16.2\; \rm mm\end{aligned}.

The perimeter of this sector would be:

\begin{aligned}& 2\, r + s \\ =\; & 2 \times 16.2\; {\rm mm} + 36\; {\rm mm} \\ =\; & 68.5\; \rm mm\end{aligned}.

8 0
2 years ago
150 calories and 30 grams how many calories are in 7 grams
exis [7]

Answer:

35 calories

Step-by-step explanation:

create a proportion and solve.

30/150= 7/x

7 0
2 years ago
If it takes six men six days to dig six holes, how long will it take one man to dig half a hole?
irakobra [83]
6x/6y=6z
X/?Y=1/2Z
36=6
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3 0
3 years ago
Solve pls!!!!!! Asap
zloy xaker [14]

Answer:

23

Step-by-step explanation:

7^2=a^2+4^2

49-16=a^2

√23=a

6 0
2 years ago
Read 2 more answers
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