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asambeis [7]
3 years ago
12

Let a, b, and c be integers. Consider the following conditional statement:

Mathematics
1 answer:
Andrew [12]3 years ago
6 0

Step-by-step explanation:

Given that the logical statement is

<em>"If a divides bc, then a divides b or a divides c"</em>

we can see that a must divide one either b or c from the statement above

A) If a does not divide b or a does not divide c, then a does not divide bc.

This is False because a can divide b or c

 B) If a does not divide b and a does not divide c, then a does not divide bc.

this is True for a to divide bc it must divide b or c (either b or c)

C) If a divides bc and a does not divide c, then a divides b.

This is True since a can divide bc and it cannot divide c, it must definitely divide b

D) If a divides bc or a does not divide b, then a divides c.

This is True since a can divide bc and it cannot divide b, it must definitely divide c

E) a divides bc, a does not divide b, and a does not divide c.

This is False for a to divide bc it must divide one of  b or c

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If 4 students share 30 ft.² wall equally how many square feet of the wall will be painted by each student
Brut [27]

Answer:

7.5 ft²/student

Step-by-step explanation:

This is a "unit rate" problem.

30 ft²

------------------ = 7.5 ft²/student

 4 students

Each student will  paint 7.5 ft² of the wall.

3 0
3 years ago
What are the x- and y-intercepts of g(x) = 4 – x??
olya-2409 [2.1K]

Answer:

See below in bold.

Step-by-step explanation:

The y -intercept is when x = 0 so

it is 4 - 0 = 4

That is (0, 4)

For the x intercept g(x) = 0 so

4 - x = 0

x = 4.

x -intercept is at  (4,0).

8 0
4 years ago
(143(5) + 67)5 __________
Rainbow [258]
Hey mate!

1st up, we must use the (Order of operations) If you don't know what that is, then it is better known as PEMDAS.

(143(5) + 67)(5)
143 x 5 =715
(715 + 67)(5)
782 x 5 = 3910

The end product is 3,910

Hope this helps!

6 0
3 years ago
Read 2 more answers
The scores of fourth grade students on a mathematics achievement test follow a normal distribution with a mean of 75 and standar
mamaluj [8]

Answer:

The appropriate solution is:

(a) 0.1056

(b) 0

(c) 0.9544

Step-by-step explanation:

The given values are:

Mean,

\mu = 75

Standard deviation,

\sigma = 4

(a)

⇒  P(x>80)=1-(x

                     =1-P[\frac{x-\mu}{\sigma}

                     =1-P[\frac{x-\mu}{\sigma}

                     =1-P(z

By using the table, we get

                     =1-0.8944

                     =0.1056

(b)

According to the question, the values are:

n = 64

\mu_\bar{x} = 75

Now,

⇒  \sigma_\bar{x} = \frac{\sigma}{\sqrt{n} }

         = \frac{4}{\sqrt{64} }

         = \frac{4}{8}

         = 0.5

⇒  P(\bar {x} >80 ) = 1 - P(\bar x

                      =1 - P[\frac{(\bar x-\mu_\bar x)}{\sigma \bar x} < \frac{80-75}{0.5}  ]

                      =1-P(z

By using the table, we get

                      =1-1

                      =0

(c)

As we know,

⇒ \sigma_\bar x = \frac{\sigma}{\sqrt{n} }

        = \frac{4}{\sqrt{64} }

        = \frac{4}{8}

        = 0.5

then,

= P(74< \bar x

= P[\frac{74-75}{0.5} < \frac{\bar x-\mu \bar x}{\sigma \bar x} < \frac{76-75}{0.5} ]

= P(-2

= P(z

By using the table, we get

= 0.9772-0.0228

= 0.9544

7 0
3 years ago
2|4x-1|=38 I need to solve this
umka21 [38]
First you have to have the absolute value isolated so the 2 has to be divided. Then set up the two cases and solve.

5 0
3 years ago
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