1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lilavasa [31]
3 years ago
12

Suppose each of the following statements is true. Laura is in the seventh grade. Laura got an A on the mathematics test or Sarah

got an A on the mathematics test. If Sarah got an A on the mathematics test, then Laura is not in the seventh grade. If possible, determine the truth value of each of the following statements. Carefully explain your reasoning. (a) Laura got an A on the mathematics test. (b) Sarah got an A on the mathematics test. (c) Either Laura or Sarah did not get an A on the mathematics test

Mathematics
1 answer:
stellarik [79]3 years ago
3 0

Answer:

a) is TRUE

b) is FALSE

c) is TRUE

Step-by-step explanation:

Let's call the propositions

<em>P: Laura is in the seventh grade </em>

<em>Q: Laura got an A on the mathematics test </em>

<em>R:Sarah got an A on the mathematics test </em>

Then we have that the following propositions are true

P, Q v R (Q or R) and R---> ~P (if R then not P)

By watching at the truth table attached, we can see that the only row that satisfies all that conditions is the second one highlighted.

From there we can deduct that,

a) is TRUE

b) is FALSE

c) is TRUE

You might be interested in
I need a answer fast please!
Paladinen [302]
Rewrite it without stem-and-leaf:

16,18,23,26,26,34,37,37,40,41,46

MEAN =∑(16,18,23,26,26,34,37,37,40,41,46)/11
MEAN =(16+18+23+25+26+34+37+37+40+41+46)/11 =343/11 = 31.18

MEDIAN (CENTRAL VALUE) = 34 (EQUIDISTANT FROM THE 2 EXTRENITIES)

MODE = THE HIGHEST FREQUENCY OF A NUMBER: only 34 appear twice, then the MODE is 34 that appears 2 times

4 0
2 years ago
Help me please...........
mrs_skeptik [129]

Answer:

6/19

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A right triangle has legs measuring 18 in. and 26 in. What is the length of the hypotenuse? Round to the nearest tenth. A) 18.8
Evgen [1.6K]

Answer:

a

Step-by-step explanation:

3 0
3 years ago
Luke wants to reduce the area of his rectangular garden by one-fourth. The expression 1/4 lw can be used to represent this chang
Leya [2.2K]

Answer:

lw/4

Step-by-step explanation:

Area of a rectangle = length × width

= l × w

Area of a rectangle = let

reduce the area of his rectangular garden by one-fourth

= 1/4 * lw

= 1/4lw

What is another way to write this expression?

Another way to write the expression is

= 1/4 * lw

= lw / 4

3 0
2 years ago
Graph this function: y =3/4x - 4 (you can just put the cordinants)​
Aloiza [94]
I’m assuming 3/4x is a fraction
the coordinates are (0,-4) and (4,-1)
5 0
2 years ago
Other questions:
  • What is the measure of angle K? (5x+10) (6x-1)
    15·1 answer
  • Your friend just purchased a new sports car for $32,000. He received $6,000 for his trade in and he used that money as a down pa
    15·2 answers
  • Find the surface area and volume of the composite figure.
    7·1 answer
  • The entire stock of backpacks at hats and packs is on sale for 30% off Marybeth purchase a backpack that regularly cost $25 her
    13·1 answer
  • Hailey has a 5 foot long extension cords .she wants to know its length in inches.how many inches long is the cord?
    9·2 answers
  • One positive number exceeds another by 4, and their product is 77. find the numbers.
    8·1 answer
  • How many vertices does the following shape have?
    11·2 answers
  • Some one please click on my profile and answer my two questions they are about circles than you
    13·2 answers
  • What is the greatest common factor (GCF) of 28 and 36
    7·1 answer
  • Please take a look at the picture for the question
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!