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BabaBlast [244]
1 year ago
11

Identify p, q, and r if necessary. Then translate each argument to symbals and use a truth table to decide if the argument is va

lid or invalid.

Mathematics
1 answer:
anzhelika [568]1 year ago
5 0
Answer:

Explanation:

Let p denote the statement "It snows", and q denote tthe statement "I can go snowboarding"

The we need to draw a table for

(p => q)v(-p => q)

p q -p -q p=>q -p => -q (p => q)v(-p => q)

T T F F T T T

T F F T F T T

F T T F T F T

F F T T T T T

The argument is valid, since the last column has truth all through.

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18. A secretary works a 40-hour week and is paid a basic rate of $22.50 per hour.
tensa zangetsu [6.8K]
40 hours at $22.50 is $900. The additional 12 hours at $33.75 is $405.
900+405= 1305 so the secretary’s total wage is $1305
8 0
2 years ago
How many meters below the surface of the water is the ring? LOOK AT THE PICTURE
insens350 [35]
It's exactly 4 meters because the question is asking how far below is it from the surface of the water.
4 0
3 years ago
Vivian is a salon owner. Yesterday she did 2 haircuts and colored the hair of 4 clients, charging a total of $422. Today, she di
harina [27]

Answer:

Haircuts cost $50.33

Hair Color costs $80.33

Step-by-step explanation:

Let haircut be cost "a"

coloring be cost "b"

2 haircut, 4 coloring equals 422, we can write:

2a + 4b = 422 {Equation 1}

5 haircut, 4 coloring, equals 573, we can write:

5a + 4b = 573 {Equation 2}

We now multiply equation 1 with -1 and add it with Equation 2 to get:

-1(2a + 4b = 422) = -2a - 4b = -422

Now,

-2a - 4b = -422

5a + 4b = 573

----------------------

3a = 151

a = 151/3 = $50.33

Now, to find b, we plug in this value into any equation and solve for b:

2a + 4b = 422

2(50.33) + 4b = 422

4b = 422 - 100.66

b = $80.33

Haircuts cost $50.33

Hair Color costs $80.33

4 0
3 years ago
Forty randomly selected students were asked the number of pairs of sneakers they owned. Let X = the number of pairs of sneakers
eimsori [14]

The mean of sample x is 5.83

The standard deviation is 5.63

<h3>What is standard deviation?</h3>

A standard deviation (or σ) is a measure of how dispersed the data is in relation to the mean. Low standard deviation means data are clustered around the mean, and high standard deviation indicates data are more spread out.

Given:

Frequency:  2 2 4 13 13 1

If x is the pair of sneakers owned of the frequency,

mean = 2+2+4+13+13+1/5

= 35/6

= 5.83

The  standard deviation is equal to 5.63.

Learn more about this concept here:

brainly.com/question/18119796

#SPJ1

8 0
2 years ago
I NEED HELP PLZZ, can someone help me out w/ this question plz?
Maslowich

Answer:

both of them are correct !

-1/1 = 0

and -1+1 = 0, and 0/-1 equals 0

Step-by-step explanation:

4 0
2 years ago
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