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Flauer [41]
3 years ago
7

1. A small company has just bought two software packages to do statistical analysis of marketing data. They are called Blue and

Steel. On first trials, Blue crashes 3% of the time and Steel crashes 9% of the time. Of 10 employees, 2 are assigned Blue and 8 are assigned Steel. Francesca was assigned a program at random. It crashed on the first trial. What are the odds that she was assigned Blue
Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
5 0

Answer:

3

Step-by-step explanation:

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PLSSSS HELP ASSAP 50 POINTS FPR FIRST PERSON TO ANSWER ​
Dafna1 [17]

Answer:

a. 2/3 or 0.6666...

b. AB = 6cm and AD = 3cm

Step-by-step explanation:

28/42 = 2/3

14/21 = 2/3

42*1/7 = 6

21*1/7 = 3

6 0
4 years ago
The diameter of a circleis 170inches. The circle has two chords of length 26 inches. What is the distance from each chord to the
vivado [14]

Answer:

Hence the Distance from each other chord to center  is 84 inches.

Step-by-step explanation:

Given:

Diameter =170 inches

2 chords with each length =26 inches.

To Find:

Distance of each chord from the circle.

Solution:

Consider a circle with center as O ,

And OA as Radius

(Refer the attachment)

So as chord be BC and DE respectively with each of 26 length

They have both same length so they should located at same distance from center but as mirror images of each other opposite side of the diameter as shown in fig.

Hence we can calculate for one chord as follows:

Radius =diameter/2=170/2=85

r=85 inches.

Let distance from center t o chord be 'x'

Now draw perpendicular to chord BC with F as midpoint for chord and join endpoints  of chord to the center which forms triangle OFC as right angled triangle,

By using pythagorus Theorem

OC^2=FC^2+OF^2

Here OC=85 inches , FC=26/2=13 inches.

So

85^2=13^2+OF^2

OF^2=85^2 -13^2

OF^2=7225-169

OF^2=7056

OF=84 inches

Hence the Distance from each other chord to center  is 84 inches.

7 0
4 years ago
BRAINLIST AND A THANK YOU AND 5 stars WILL BE REWARDED PLS ANSER
vichka [17]

Answer:

The first picture's answer would be (6, 21)

Step-by-step explanation:

You have to find the points on the 8th and the 9th day, and then you would add them together, and then divide by two finding the average, which would be 24 and 18, so when added, you get 42, divided by 2 you get 21. You look on the graph for the point with 21, and you find it is on 6.

3 0
3 years ago
Given sin(−θ)=1/5 and tanθ=√6/12 .
Natasha_Volkova [10]

Answer:

B). −2√6/5

Step-by-step explanation:

tan theta = sin theta/ cos theta

Multiply each side by cos theta

tan theta * cos theta = sin theta

Divide each side by tan theta

cos theta = sin theta/ tan theta

We know that the sin (- theta) = - sin theta  since sin is and odd function

sin theta  = - (  sin (-theta))

Putting this into the above equation,

cos theta =  - (  sin (-theta)) / tan theta

cos theta = - 1/5 / (sqrt(6)/12)

Remember when dividing fractions, we use copy dot flip

cos theta =   -1/5  * 12/ sqrt(6)

cos theta = -12/ (5 sqrt(6))

We cannot leave a sqrt in the denominator, so multiply the top and bottom by sqrt(6)/sqrt(6)

cos theta = -12/ (5 sqrt(6))  * sqrt(6)/sqrt(6)

cos theta = -12 sqrt(6) / 5*6

Simplify the fraction.

cos theta = -2 sqrt(60/5



3 0
3 years ago
Factor the linear expression 15x – 10 using the greatest common factor of the terms.
Citrus2011 [14]

Answer:

The answer is D.

Step-by-step explanation:

hope that helps

Solutions:

A. 5(3x + 2)

= 15x+10

B. 5(3x – 10)

= 15x-50

C. 15(x – 2)

= 15x-30

D. 5(3x – 2)

=15x-10

4 0
3 years ago
Read 2 more answers
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