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kotykmax [81]
3 years ago
11

-15 π + 12 π - 5 π =

Mathematics
1 answer:
Ksju [112]3 years ago
8 0

Answer:

-8π or -25.13

Step-by-step explanation:

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In an experiment, the probability that event A occurs is
AnnZ [28]

Answer:

1/63

Step-by-step explanation:

Here is the complete question

In an experiment, the probability that event A occurs is  1 /7  and the probability that event B occurs is  1 /9 .

If A and B are independent events, what is the probability that A and B both occur?

Simplify any fractions.

Solution

the probability of independent events A and B occurring is P(A u B) = P(A)×P(B) where P(A) = probability that event A occurs =  1 /7 and P(B) = probability that event B occurs =  1 /9 .

So,  P(A u B) = P(A)×P(B) = 1/7 × 1/9 = 1/63

7 0
3 years ago
Read 2 more answers
A recently negotiated union contract allows workers in a shipping department 24 minutes for rest, 10 minutes for personal time,
Alik [6]

Answer:7.125 min

Step-by-step explanation:

Given

Resting time =24 min

Personal time=10 min

Delay=14 min

Observed Time=6min/cycle

Performance Rating=95%

Allowance Time=Rest time+Personal time+delay

Allowance time=24+10+14=48 min

Allowance %=\frac{Allowance Time}{Total Time}=\frac{48}{4\times 60}=20 \%

Allowance Factor=\frac{1}{1-0.20}=\frac{5}{4}

Calculate the Normal Time

Normal time=Observed time\timespersonal Time=6\times 0.95=5.7 min

Standard time=Normal time \times Allowance Factor

Standard time =NT\times Allowance factor=5.7\times 1.25=7.125 min

3 0
3 years ago
FIND THE EXACT AREA PLEASE HELPPPP ILL GIVE BRAINLIESTTTT
Ede4ka [16]

Answer:

555.94

Step-by-step explanation:

16 x 11 = 176/2

88

since there are two of the same triangle

88 x 2

176

11 is the radius

A = \pix^{2}

A = 3.14 ( pie is 3.14, if not then pi) x (11x11)

A = 3.14 x 121 (or 121\pi)

A = 379.94

379.94 + 176 (or 121pi + 176)

555.94

4 0
2 years ago
An artist made purple paint by mixing 1/2 quart of red paint and 3/4 quart of blue paint. What is the ration of red paint to blu
Orlov [11]

Answer:

(1/2)/(3/4) = (1/2)(4/3) = 2/3

Step-by-step explanation:

4 0
3 years ago
1 – 7k + 3k 2 + 10k + 7 – 5k 2
Katyanochek1 [597]

1) The variables are "k"

2) There are 4 terms

3) The coefficients are k

4) The constants are -7, 3, 10, -5

5) The like terms is -7k, 3k, 10k, -5k

The answers are pretty direct but, hope this answers your question.

Have a great day/night!

8 0
2 years ago
Read 2 more answers
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