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Elena L [17]
3 years ago
6

Solve for X (15x-23)

Mathematics
1 answer:
Stells [14]3 years ago
3 0

Answer:

15 ^2 − 2 3

Step-by-step explanation:

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Suppose that replacement times for washing machines are normally distributed with a mean of 9.3 years and a standard deviation o
Ad libitum [116K]
The probability will be found as follows:
z-score is given by:
z=(x-μ)/σ
where:
mean-μ=9.3
standard deviation-σ=1.1 
but
σ/√n=1.1/√70=0.1315
thus the z-score will be:
z=(9.1-9.3)/0.1315
z=-1.5209
thus:
P(x<9.1)=P(z<-1.5209)=0.0643
7 0
3 years ago
The point A(-3, -2) is translated using T: (x,y) → (x + 5, y - 3). What is the distance from A to A'?
Degger [83]

Answer:

d=5.39 units

Step-by-step explanation:

Given A (-3, -2)  

T= (x+5, y-3)

T= (-3+5, -2-3)

T=(2,-5)

Applying the translation on;

A( -3,-2)

A' (-3+2, -2+ -5)

A'= (-1, -7)

Distance

d= \sqrt { X2-X1)^2 + (Y2-Y1)^2

A = (-3,-2)     and  A'(-1, -7)

d=√ (-1--3)² + (-7--2)²

d=√ (2)²+(-5)²

d=√4+25

d=√29

d=5.39 units

4 0
3 years ago
Express 0.19494 as a fraction
valentina_108 [34]
19.494
19 <span>247⁄500</span>

Improper fraction:
<span>9747⁄500</span><span>
</span>
3 0
3 years ago
A piece of string is 42 meters long. It is cut into three pieces so that one piece is 15 meters longer than the other two, which
Semmy [17]
To start this problem, we know that one of the three pieces that the string is cut into is 15 meters longer than the others. Subtract 15 from 42 to get 27.
Then, from there, you can cut that number (<em>divide</em>) by three to get the length of the two shorter strings. Simply add the 15 meters you didn't use yet to one of the pieces to find the longer string, and you have your lengths.

Hope this helps!
-refrac532
4 0
3 years ago
What is the central idea of Langston Hughes’s poem "Mother to Son"?
MariettaO [177]

Answer:

B

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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