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Naily [24]
3 years ago
8

The data value x exists in two data sets: A and B. The mean is equal for both data sets. If the standard deviation for set A is

greater than the standard deviation for set B, which is true for zx for set A?
Mathematics
1 answer:
liubo4ka [24]3 years ago
7 0

Answer:

answer is B

it is less than Zx for set B

Step-by-step explanation:

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Sean bought 68 3/4 inches of rope . How many 15-inches ropes can he make from it
choli [55]
Length of rope bought by Sean = 68 3/4 inches
                                                   = 275/4 inches
Then
The number of 15 inch rope that can be made by Sean = (275/4)/15
                                                                                         = 275/(4 * 15)
                                                                                         = 275/60
                                                                                         = 4.58
So we can see from the above deduction that Sean can make 4 complete 15 inches ropes and there will be 0.58 inches of rope excess. <span>I hope the procedure and the method of solving is absolutely clear to you. This is the easiest way to get to the solution for such problems.</span>



6 0
3 years ago
Read 2 more answers
I need help with this as well ty lol
Pie
so you use the formula a^2 + b^2 = c^2
so C will be JL
13m^2 + 17m^2 = c^2
458 m = c^2

to leave C alone you need to square root it

√458m = √c^2
21.4 = C
4 0
3 years ago
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Meg conducted a survey of four school cafeterias to find the number of students who like sandwiches for lunch. The results of he
Natasha_Volkova [10]
C. 38.46%       To get your answer you divide the number of students who liked sandwiches by total number of students in the cafeteria.   Example:  10/26=.3846 which is 38.46%
6 0
3 years ago
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Solve for x and y 1/(x+yi) + 2/(x-yi) = 1+i
aliina [53]

Answer:

Step-by-step explanation:

x+i*y≠0 ==> x≠0 and y≠0

x-i*y≠0 ==> x≠0 and y≠0

We must exclude (0,0) as solution.

\dfrac{1}{x+i*y} +\dfrac{2}{x-i*y} =1+i\\\\\dfrac{1*(x-i*y)}{(x+i*y)(x-i*y)} +\dfrac{2*(x+i*y)}{(x-i*y)(x+i*y)} =1+i\\\\\\\dfrac{x-i*y+2x+2i*y}{x^2+y^2} =1+i\\\\3x+i*y=(1+i)(x^2+y^2)\\\\3x+i*y=(x^2+y^2)+i(x^2+y^2+i*(x^2+y^2)\\\\\left\{\begin{array}{ccc}3x&=&x^2+y^2\\y&=&x^2+y^2\\\end {array}\right.\\\\\\\left\{\begin{array}{ccc}y&=&3x\\3x&=&x^2+9x^2\\\end {array}\right.\\\\\\\left\{\begin{array}{ccc}y&=&3x\\x(10x-3)&=&0\\\end {array}\right.\\\\

\left\{\begin{array}{ccc}x&=&0\\y&=&0\\\end {array}\right.\ (to\ exclude) \ or \ \left\{\begin{array}{ccc}x&=&\dfrac{3}{10}\\\\y&=&\dfrac{9}{10}\\\end {array}\right.\\\\Sol=\{(\dfrac{3}{10},\dfrac{9}{10})\}\\

4 0
3 years ago
♡Complete the equation of this circle:
Lady_Fox [76]

The equation of the given circle is :

(x -  2)  {}^{2} + (y - ( - 2)) {}^{2}  = 9

So the value in the blanks will be :

  • 1st = 2

  • 2nd = -2

  • 3rd = 9

6 0
3 years ago
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