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inna [77]
3 years ago
11

Find the 25th term of the sequence -1, 2, 5, 8​

Mathematics
1 answer:
Scilla [17]3 years ago
8 0

Answer:

71

Step-by-step explanation:

This is an arithmetic sequence with n th term

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

here d = 2 - (- 1) = 5 - 2 = 8 - 5 = 3 and a₁ = - 1, so

a_{25} = - 1 + (24 × 3) = - 1 + 72 = 71

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The equation 3x – 2y = 18 is in slope intercept
Gnoma [55]

Given:

The equation is:

3x-2y=18

To find:

The slope intercept form of the given equation.

Solution:

Slope intercept form of a line is:

y=mx+b

Where, m is slope and b is y-intercept.

We have,

3x-2y=18

It is not in the slope intercept form.

We need to isolate variable y to get the slope intercept form.

The given equation can be rewritten as:

-2y=-3x+18

y=\dfrac{-3x+18}{-2}

y=\dfrac{-3x}{-2}+\dfrac{18}{-2}

y=\dfrac{3}{2}x-9

Therefore, the slope intercept form of the given equation is y=\dfrac{3}{2}x-9.

4 0
3 years ago
18) The ratio of the number of boys to the number of girls in the class is 1:6. Which statement must describe the class? A) Ther
Firdavs [7]

Answer:

B. There is one boy for every 6 girls in class.

Step-by-step explanation:

When you have a ratio, it compares two numbers. When you have a ratio 1:6 the colon (:) there can be read as "is to" or "for every".

That means that ratio can be read as 1 is to 6 or "there is 1 for every 6."

In this case 1:6 represents the number of boys to the number of girls to class. This means that there is 1 boy for every 6 girls in class.

3 0
3 years ago
Ingrid walked her dog and washed her car. The time she spent walking her dog was one-half the time it took her to wash her car.
Inessa [10]

Answer:

24m+24m=48m

Ingrid spent 48 minutes washing her car

Step-by-step explanation:

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6 0
3 years ago
Rodrigo can carpet a hous in twelve hours, working by himself. DaShawn can carpet the same house in ten hours . Working togehter
hjlf

Answer:

55/11 hrs

Step-by-step explanation:

rodrigo 12hrs

DaShawn 10hrs

1/12+1/10=11/60

then reciprocate

60/11=5 5/11 hrs

3 0
3 years ago
Wht Is a fraction equivalent to 0.4 repeating its self
Talja [164]
4/10 ...................
3 0
4 years ago
Read 2 more answers
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