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maw [93]
4 years ago
13

Which of the following values is closest to the variance for the set of data shown below? 23, 32, 20, 43, 41, 66, 63, 59, 54, 36

, 45, 61, 55, 44, 47
A. 195.4
B. 197.7
C. 212.6
D. 225.9
Mathematics
1 answer:
Jobisdone [24]4 years ago
5 0
Sorry if I'm wrong but I think the answer is B
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Mark opens a bank account with $20. He plans to put in $5 each week.
lys-0071 [83]

Answer:

16 weeks

Step-by-step explanation:

So he has 20.

5 x 16 = 80

20 + 80 = $100

6 0
3 years ago
PLEASE HELP ME ,THIS IS HARD ,AND I DON’T UNDERSTAND MATH..
Tasya [4]

Answer:

Step-by-step explanation:

divide y by x

in a table and coordinate pair, which is something like (0,4), x always comes first. So, in this table x is the time in seconds and y is the distance in meters. 120/4=30 meters per second. For the second part of the table, since we know what the slope is, or the constant rate of change, 30, we can multiply 30 by 25 which is 750. You can also use the equation y=mx, m is the slope, and x is a point on the coordinate pair. For example, in the second table, y=30(25). For the last part of the table, you can use the same equation. 270=30x. We try to get x alone so we do, 270 divided by 30 which is 9. So a cheetah runs at 270 meters per 9 seconds.

4 0
3 years ago
Read 2 more answers
What value of x makes the equation true <br> 2 (6x-1) = -38
Anestetic [448]

Answer:

<h3>\boxed{\bold{\boxed{ \sf{x =  - 3}}}}</h3>

Step-by-step explanation:

\sf{2(6x - 1) =  - 38}

Distribute 2 through the parentheses

⇒\sf{12x - 2 =  - 38}

Move constant to right hand side and change it's sign

⇒\sf{12x =  - 38 + 2}

Calculate

⇒\sf{12x =  - 36}

Divide both sides of the equation by 12

⇒\sf{ \frac{12x}{12}  =  \frac{ - 36}{12} }

Calculate

⇒\sf{x =  - 3}

Hope I helped!

Best regards!!

5 0
3 years ago
Im so confused. :/ Anyone?
ArbitrLikvidat [17]
First one = 9x3=27

Second one 12x9=108

3rd one = 3x4=12
 
Idk what that last one is
7 0
3 years ago
4. Add<br> f(x)= 4x?+5x-1<br> g(x) = 2x2 + 5x+3
Maurinko [17]
<h3>Answer:</h3>

A. 3x² +6

<h3>Explanation:</h3>

(f-g)(x) = f(x) -g(x) = (4x²+1) -(x²-5) . . . . . substitute the function definitions

... = 4x² +1 -x² +5 . . . . . . . . . . . eliminate parentheses

... = (4-1)x² +(1+5) . . . . . . . . . . . collect like terms

... = 3x² +6

6 0
3 years ago
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