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evablogger [386]
2 years ago
11

Add -51 + (-16) - a : - 67 b : 35 C : 67 D : - 35

Mathematics
1 answer:
musickatia [10]2 years ago
6 0
The ANSWER: is
A : -67

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The playing life of a Sunshine radio is normally distributed with mean LaTeX: \muμ = 600 hours and standard deviation LaTeX: \si
Hitman42 [59]

Answer:

The probability that a radio selected at random will last from 600 to 700 hours is 0.3413

Step-by-step explanation:

The playing life of a Sunshine radio is normally distributed

Mean =\mu = 600 hours

Standard deviation =\sigma = 100 hours

We are supposed to find the probability that a radio selected at random will last from 600 to 700 hours i.e.P(600<x<700)

Formula:Z= \frac{x-\mu}{\sigma}

At x = 600

Z= \frac{600-600}{100}

Z=0

P(X

At x = 700

Z= \frac{700-600}{100}

Z=1

P(X

P(600

Hence the probability that a radio selected at random will last from 600 to 700 hours is 0.3413

8 0
3 years ago
Write the slope-intercept form of the equation of each line. X-3y=6
Alecsey [184]
<span>x -3y=6
3y = x - 6
  y = x/3 - 2

answer
</span>slope-intercept form of the equation:  y = x/3 - 2
4 0
3 years ago
Write a system<br> of linear inequalities represented by the graph.
Helga [31]
2,3 or 4,1 either one
6 0
2 years ago
Which equation shows the result of substituting and expression for y from the first equation into the second equation for the gi
krek1111 [17]

Answer:

x-2x = -3 and x = 3

Step-by-step explanation:

Given the expression

y=x+5.... 1

y-2x=2.... 2

Substituting the first equation into the second we will have;

From 2;

y -2x = 2

x+5-2x = 2

x-2x +5 = 2

x-2x = 2-5

x-2x = -3

-x =-3

x =3

Hence the required equation is x-2x = -3 and x = 3

7 0
2 years ago
Read 2 more answers
How does the volume of an oblique cylinder change if the radius is reduced to 2/9 of its original size and the height is quadrup
nordsb [41]
For the answer to the question above, 
Let's use the formula for finding the volume.

(pi) x 2/9 x 2/9 x r^2 

(pi) x <u>2</u> x <u>2</u> x r^ 2 x 4h
         9    9

simplify and solve.

The the will be
<u>16 </u>(pi) r^2h
81

I hope I helped you in my answer

4 0
2 years ago
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