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inysia [295]
3 years ago
11

7+8r+10r pls help me im failing

Mathematics
1 answer:
Umnica [9.8K]3 years ago
4 0

Final Answer: 7 + 18r

Steps/Reasons/Explanation:

Question: Solve 7 + 8r + 10r.

<u>Step 1</u>: Collect like terms.

7 + (8r + 10r)

<u>Step 2</u>: Simplify.

7 + 18r

~I hope I helped you :)~

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What determines whether or not you have a function?
seropon [69]

Answer:

Vertical line test

Step-by-step explanation:

8 0
3 years ago
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The Highway Safety Department wants to study the driving habits of individuals. A sample of 41 cars traveling on the highway rev
PolarNik [594]

Answer:

58,21    ≤   μ  ≤   61,79

Step-by-step explanation:

Normal Distribution

Poputation size        n = 41

Population mean         X  = 60

Population standard deviation    σ = 7

Question is: Confidence Interval 90 % ??

As Confidence Interval is 90 %   then  α  = 10 %

And as we are dealing with a two tail test

α/2  = 0,05

We look in Z table for values for  α/2  = 0,05  and find

z(α/2)  =  - 1,64      and    z(α/2) =  1,64

Then

Confidence Interval is

X - Zα/2 * σ/√n   ≤  μ  ≤  X + Zα/2 * σ/√n

60 - ( 1,64 ) * 7/√41  ≤   μ  ≤  60 + ( 1,64 ) * 7/√41

60 -  1,64 * 1,09375   ≤   μ  ≤  60 +  1,64 * 1,09375

60 - 1,79375    ≤   μ  ≤  60 +  1,79375

58,21    ≤   μ  ≤   61,79

4 0
4 years ago
GIVING BRAINLIEST<br> What is the solution to the system of linear equations graphed below?
dolphi86 [110]

Answer:

The first option so (3\frac{1}{2}, -4) is the answer

<u>Skills required: Graphing Knowledge, Systems Knowledge</u>

Step-by-step explanation:

1) The solution to any system is the intersection between any 2 lines or functions. In this case, we are given two functions on a graph, and need to find the solution to them. That is the intersection.

2) We can see the intersection and see that the x-axis value for the coordinate point is around 3 1/2 (or 3.5 -- whatever you prefer), and that the y-axis value for the point is -4.

Therefore, the coordinate point is: (3\frac{1}{2}, -4) since this answer best matches the coordinate values of that point.

==================================================================

Select the first option, have a nice day! :D

7 0
3 years ago
I need more help....sorry haha
kozerog [31]
Number 7:   11/12-9/10 = 110/120-108/120=2/120= 1/60

number 8:     5/18-1/3=15/54-5/54=10/54 =5/27
5 0
4 years ago
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ASAP PLEASE!
ruslelena [56]

Answer:

173,740

Step-by-step explanation:

no need explanation

8 0
3 years ago
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