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Sever21 [200]
3 years ago
5

What are thoes answers

Mathematics
1 answer:
lina2011 [118]3 years ago
3 0
1) (-5)(-3) is 15

2) 24/-4  is -6

3) 36(0.5) is 18

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PLS HELP
LiRa [457]
There is 3600 seconds per hour.
 Multiply the speed per second by 3600 to get the speed in miles per hour then convert to kilometer/hour.

4.9 * 3600 = 17,640 miles per hour

17,640 x 1.6 = 28,224 kilometers per hour

8 0
2 years ago
There were 20 boys and 26 girls in a chess club last year. This year the number of boys increased by 30% but the number of girls
Readme [11.4K]

Step-by-step explanation:

Boys

20 + (20 \div 100)30 = \\  = 20 + 0.2 \times 30  =   \\  = 20 + 6 = \\26

Girls

26 - (26 \div 100)15 = \\  = 26 - 0.26 \times 15 =  \\  = 26 - 3.9 = \\  = 22

Total last year 46

Total this year 48

Increase

5 0
2 years ago
A marketing firm would like to test-market the name of a new energy drink targeted at 18- to 29-year-olds via social media. A st
Anon25 [30]

Answer:

(a) The probability that a randomly selected U.S. adult uses social media is 0.35.

(b) The probability that a randomly selected U.S. adult is aged 18–29 is 0.22.

(c) The probability that a randomly selected U.S. adult is 18–29 and a user of social media is 0.198.

Step-by-step explanation:

Denote the events as follows:

<em>X</em> = an US adult who does not uses social media.

<em>Y</em> = an US adult between the ages 18 and 29.

<em>Z</em> = an US adult between the ages 30 and above.

The information provided is:

P (X) = 0.35

P (Z) = 0.78

P (Y ∪ X') = 0.672

(a)

Compute the probability that a randomly selected U.S. adult uses social media as follows:

P (US adult uses social media (<em>X'</em><em>)</em>) = 1 - P (US adult so not use social media)

                                                   =1-P(X)\\=1-0.35\\=0.65

Thus, the probability that a randomly selected U.S. adult uses social media is 0.35.

(b)

Compute the probability that a randomly selected U.S. adult is aged 18–29 as follows:

P (Adults between 18 - 29 (<em>Y</em>)) = 1 - P (Adults 30 or above)

                                            =1-P(Z)\\=1-0.78\\=0.22

Thus, the probability that a randomly selected U.S. adult is aged 18–29 is 0.22.

(c)

Compute the probability that a randomly selected U.S. adult is 18–29 and a user of social media as follows:

P (Y ∩ X') = P (Y) + P (X') - P (Y ∪ X')

                =0.22+0.65-0.672\\=0.198

Thus, the probability that a randomly selected U.S. adult is 18–29 and a user of social media is 0.198.

6 0
2 years ago
QUESTION: The area of a base of a cylinder is represented by , where d is the diameter. A function representing the area of the
MakcuM [25]

Answer:

c

Step-by-step explanation:

5 0
3 years ago
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A car’s original price was $26,500. Mr. Thomas paid $18,815. What percent discount did Mr. Thomas receive on the car?
Grace [21]
B. He received 29% discount on the car.<span />
6 0
3 years ago
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