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bagirrra123 [75]
3 years ago
6

What is the missing term of the arithmetic sequence? 6, ______, 30

Mathematics
1 answer:
Andrei [34K]3 years ago
3 0

Let k = the constant amount added to the sequence since this is an arithmetic sequence

       x = missing number

You have to formulate an equation based on the sequence:

6 + k = x or k = x – 6

x + k = 30

Substitute the value of k to the second formula:

x + x – 6 = 30

2x = 36

x = 18

Therefore, the missing number is 18.

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|5x|+5=45<br><br> can you explain this absloute value equation <br> i have a midterm
Ymorist [56]
So first, you get the absolute value to one side:
|5x|+5=45\\&#10;|5x|=40

Next, set up two equations; One where the value inside the absolute value lines is positive, and another where it is negative, and solve both for the variable:
|5x|=40\\5x=40\\x=\frac{40}{5}=8\\\\-5x=40\\x=\frac{40}{-5}=-8

Your answers are 8 and -8, or +-8.
8 0
3 years ago
Read 2 more answers
(SAT Prep) In the given figure, the reflex angle ∠DOB has measure of 3.5y while the measure of ∠AOD is y. Find the measure of th
Flauer [41]

Answer:

252°

Step-by-step explanation:

In the figure attached, the diagram is shown. There, we can see that

∠DOB = ∠AOD + ∠AOC + ∠COB

Replacing with the equivalences: ∠DOB has a measure of 3.5y, the measure of ∠AOD is y, and ∠AOC + ∠COB measure 180°, we get:

3.5y = y + 180°

3.5y - y = 180°

2.5y = 180°

y = 180°/2.5

y = 72°

Therefore, ∠DOB = 3.5*72° = 252°

4 0
4 years ago
-7 + 3x = -10x +25<br> Show the work
Elanso [62]

Answer:

Step-by-step explanation:

Move -7 to the left, so make 7 positive and & move it next to 25

1. 3x = -10x +25+7

combine 25 & 7

2. 3x=-10x+32

move 10 to the side & combine with 3x

3.  3x+10x=+32

4. 13x = 32

lastly divide 32 from 13

<h2>x= 32/13 OR x= 2  6/13</h2><h2></h2>
5 0
3 years ago
Read 2 more answers
The square below has an area of x^2+10x+25 square meters. What expression represents the length of one side of the square?
Andre45 [30]

(x+5) represents each side of a square. Since all sides of a square are equal, we know that all sides are (x+5).

Base x height = (x+5)(x+5)

Which is x^2+10x+25!

8 0
4 years ago
WILL MARK BRAINLIEST
Zanzabum

Answer:

A.) (x + 2) and (2x - 1)

Step-by-step explanation:

So from the video i just watch this is how its done

3 (2x^2 + 3x - 2) = 0

4  and -1 gives you 3 and you divide them by a which is 2

4/2 (2/1) and -1/2 then you write them from the bottom to top

(x + 2) and (2x - 1)

Answer:

B.) 20 (x + 5) (x - 5) = 0

Step-by-step explanation:

20 (x^2 - 25) = 0

20 (x + 5) (x - 5) = 0

EZ

8 0
3 years ago
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