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Lana71 [14]
3 years ago
9

What is the value of the expression shown below?

Mathematics
2 answers:
n200080 [17]3 years ago
8 0
3rd awnser igot u❤️ I had this too
adelina 88 [10]3 years ago
6 0

Answer:

It would be the 3rd option.

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Question 6 Multiple Choice Worth 1 points)
Elza [17]

Answer:

Step-by-step explanation:

5 - (x + 5) > -2(x + 4)

5 - x - 5 > -2x - 8

-x > -2x - 8

-x + 2x > -8

x > -8

6 0
3 years ago
Read 2 more answers
In this problem, we explore the effect on the standard deviation of adding the same constant to each data value in a data set. C
aliya0001 [1]

Answer:

3.6661

3.6661

A, Adding a constant does nothing to the standard deviation

Step-by-step explanation:

I'm gonna assume s=standard deviation

The standard deviation is just the square root of the second moment minus the first moment squared

Because we were not told otherwise I think it's pretty safe to assume that all events are equally likely

Let's start by calculating the first moment (AKA The mean)

1/5(8+16+14+8+16)= 12.4

Let's then find the second moment

1/5(8²+16²+14²+8²+16²)= 167.2

√(167.2-12.4²)=3.6661

b.

While I could just tell you that adding something to the standard deviation (and the variane as well) doesn't do anything let's calculate it for fun

same process

.2(16+24+22+16+24)= 20.4

.2(16²+24²+22²+16²+24²)=429.6

√(429.6-20.4²)= 3.6661

6 0
3 years ago
Which equation is equivalent to log3(x+5)=2
Lisa [10]
In exponential form: 10^2=3(x+5)
If we were to solve, x=85/3
7 0
3 years ago
Read 2 more answers
Simplify (3x − 8) + (2x + 5) − (4x − 8).<br> A) x − 11 <br> B) x + 5 <br> C) x + 21 <br> D) 9x + 5
lozanna [386]

Answer:

B

Step-by-step explanation:

3x-8+2x+5-4x+8

3x+2x-4x    -8+5+8

     x        +        5      

x+5

6 0
3 years ago
Read 2 more answers
Rearrange the equation so w is the independent variable.<br> u-5=-4(w-1)
exis [7]

u-5=-4(w-1) \\u=5-4(w-1)\\u=5-4w+4\\u=-4w+9

5 0
3 years ago
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