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Tanya [424]
3 years ago
12

I need help. Please help me with this

Mathematics
1 answer:
In-s [12.5K]3 years ago
5 0

Answer:

c not sure tho

Step-by-step explanation:

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HELP PLZ!! Convert 80 mph (miles per hour) to feet per second.
marin [14]

Answer:

117.33333 feet per second

Step-by-step explanation:

6 0
2 years ago
Find the 13th term of the arithmetic sequence -3x – 1,42 + 4,112 + 9, ...
Strike441 [17]

Answer:

The 13th term is 81<em>x</em> + 59.

Step-by-step explanation:

We are given the arithmetic sequence:

\displaystle -3x -1, \, 4x +4, \, 11x  + 9 \dots

And we want to find the 13th term.

Recall that for an arithmetic sequence, each subsequent term only differ by a common difference <em>d</em>. In other words:

\displaystyle \underbrace{-3x - 1}_{x_1} + d = \underbrace{4x + 4} _ {x_2}

Find the common difference by subtracting the first term from the second:

d = (4x+4) - (-3x - 1)

Distribute:

d = (4x + 4) + (3x + 1)

Combine like terms. Hence:

d = 7x + 5

The common difference is (7<em>x</em> + 5).

To find the 13th term, we can write a direct formula. The direct formula for an arithmetic sequence has the form:

\displaystyle x_n = a + d(n-1)

Where <em>a</em> is the initial term and <em>d</em> is the common difference.

The initial term is (-3<em>x</em> - 1) and the common difference is (7<em>x</em> + 5). Hence:

\displaystyle x_n = (-3x - 1) + (7x+5)(n-1)

To find the 13th term, let <em>n</em> = 13. Hence:

\displaystyle x_{13} = (-3x - 1) + (7x + 5)((13)-1)

Simplify:

\displaystyle \begin{aligned}x_{13} &= (-3x-1) + (7x+5)(12) \\ &= (-3x - 1) +(84x + 60) \\ &= 81x + 59 \end{aligned}

The 13th term is 81<em>x</em> + 59.

3 0
3 years ago
Solve for m: 2m² + 16 = 2m
Goshia [24]

Answer: m = 16

Step-by-step explanation:

2m² + 16 = 2m

2m² - 2m = 16

m = 16

5 0
3 years ago
(PLEASE HELP ME WITH THIS QUESTION)
Romashka [77]

Answer:

B is your answer

Step-by-step explanation:

have a great day!

mark me brainliest to be happy

5 0
2 years ago
Data from the sequence of amino acids in proteins are used to infer how living things are related through evolution. The chart s
Stolb23 [73]

Chicken and turkey on Ap3x

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