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serious [3.7K]
3 years ago
6

Evaluate if r = 7 need helpppp

Mathematics
2 answers:
Ira Lisetskai [31]3 years ago
7 0

Answer:

-5

Step-by-step explanation:

if r was 7 it would be 7-12 so 7 - 12 is -5

Fofino [41]3 years ago
6 0

Answer:

-5

Step-by-step explanation:

if r is 7

7-12=-5

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What is the solution to the equation = 25?<br><br> x = 5<br> x = 10<br> x = 25<br> x = 125
Brilliant_brown [7]

Answer:

x=125

Step-by-step explanation:

To solve we must find a number that when divided by 5 equals 25.

To do this we can either...

Take each answer choice and plug in the value into the x spot and see if it works...

5/5=25  WRONG

10/5=25 WRONG

25/5=25 WRONG

125/5=25 CORRECT!

ORRR... we can set the equation so that the x is alone on one side.

To do this we can multiply both sides by 5

\frac{x}{5}=25 ---> x=25×5

x=125

7 0
2 years ago
What is the common difference for this arithmetic sequence?
OverLord2011 [107]

Answer:

B. -6

Step-by-step explanation:

The common difference here is the difference between each term. Since it is an arithmetic sequence the difference between each term will be the same value.

So, from 45 (the 1st term) to 39 (the 2nd term), the difference is -6

From 39(the 2nd term) to 33, the difference is also -6.

Therefore, we know that the common difference fro this arithmetic sequence is -6.

Hope this helps and ask me any question if it does not :)

8 0
3 years ago
Read 2 more answers
Find the sum of the first 12 terms of the geometric sequence - 2,6,-18,54,-162....​
nekit [7.7K]

Answer:

Sure, the common difference is -3, but like you have to multiple it and stuff, so it goes like this: -2,6,-18,54,-162,486,-1458,4374,-13122,39366,-118,098,354294.

So then, add all of the 12 terms I stated, and that will equal to 265,720

Therefore, the sum of the first 12 terms of that geometric sequence is 265,720.

Step-by-step explanation:

6 0
3 years ago
Station A and Station B are 120 miles apart. A train traveling from station A to station B travels exactly 1/3 of the distance w
vodomira [7]

Answer:

60

Step-by-step explanation:

60

7 0
2 years ago
I need help with box and whisker plots ASAP
bonufazy [111]
Box and whiskers plots use five number summaries. The first number is:
1:Minimum
2.Quartile 1
3.Mean
4.Quartile 2
5.maximum

Quartile are simple to get.
If your set of numbers is:
2,3,3,6,8,8,11
Then find the mean
2 3 3 |6| 8 8 11
Find the mean of the left side of of mean.
2 |3| 3 3 =Quartile 1
Then the right side
8 |8| 11 8 =Quartile 2
-----------------------------------------------
Your 5 number summary is 2,3,6,8,11
Plot them on the number line, but put a line above where the dot would go. take the 3 middle lines and connect to make a box. The lines on the outside of the box are the whiskers, AKA distributed data.
8 0
3 years ago
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