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ollegr [7]
3 years ago
5

18 take away negative 10 is wha

Mathematics
2 answers:
Elodia [21]3 years ago
5 0
The question 18-(-10)=28

Ilya [14]3 years ago
3 0
18--10= 
the two negative signs make a plus so you simply have 18 + 10 which is 28
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Please help me with this! Will give Brainliest for quickest answer!
riadik2000 [5.3K]
1. A geometric sequence has a common ratio. You can find the ratio by dividing every number by its previous one. If it is consistent, then the series is geometric.
a: 8/1=8, 27/8=3.375
b: (-3/2)/3=-1/2, (3/4)/(-3/2)=-1/2
c. 7/4=1.75, 10/7=1.429
d. 20/25=0.8, 14/20=0.7

Choice b is the only one that has a common ratio, so it is a geometric series.

2. Every term is multiplied by 1/3, so the common ratio is 1/3. d is the answer.
7 0
3 years ago
You want to change your cell phone service. The new company charges $40 per month for cell phone use. There is a one-time start-
faltersainse [42]
25+40*t=c
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4 0
3 years ago
Read 2 more answers
What number was added to 8 to get a sum of -4?
solong [7]

Answer:

-12

Step-by-step explanation:

8+(-12)=-4

6 0
2 years ago
HELP ASAP<br><br><br><br> GEOMETRY<br> .<br> .<br> .<br> .<br> .<br> .
lukranit [14]

Answer:

1.  y = -(2/5)x - (1/5)

2. y = -(9/5)x - 4

Step-by-step explanation:

For 1:

Step 1:  rewrite the equation of the given line in to slop-intercept form by solving for y

 2x + 5y = 15    

     5y = -2x + 15               (subtract 2x from both sides)

        y = -(2/5)x + 3           (divide both side by 5)

Step 2:  Our line is parallel to this line, so it has the same slope, but a different  y-intercept, so set up the equation...

  y = -(2/5)x + b      

We are given a  point (x, y) of (2, -1), so plug that in and solve for b.

 -1 = -(2/5)(2) + b

    -1 = -4/5 + b      (simplify)

        4/5 -1 = b      (add 4/5 to both sides to isolate b)

        4/5 - 5/5 = b

             -1/5 = b            

So the equation of our line is  y = -(2/5)x - (1/5)

For 2:  

Step 1:  Perpendicular lines have slopes that are opposite reciprocals of each other.  That means you take the slope, flip the fraction, and change the sign.

Here our given line is y = (5/9)x - 4 so the slope 5/9

The opposite reciprocal of 5/9 is -9/5

We set up the equation

y = -(9/5)x + b      

  we are given a point (x, y) of (-5, 5), so plug that in and solve for b

5 = -(9/5)(-5) + b

    5 = 9 + b

     -4 = b  

So our equations is  y = -(9/5)x - 4

       

6 0
3 years ago
Someone please explain the following theorems. I don't quite understand them. Whoever has the best answer will be given Brainlie
quester [9]

Answer:

https://www.mathsisfun.com/geometry/circle-theorems.html

visit that site it breaks down all the theorems in a understandable way

Step-by-step explanation:

8 0
3 years ago
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