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3 years ago

A 5-inch, f/6 telescope has a 2-inch eyepiece focal. Its magnifying power is:

Computers and Technology

1 answer:

exis [7]3 years ago

3 0

C. 15x <span>A 2-inch, f/6 telescope has a 3-inch eyepiece focal.

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Find the equation of a line which has 10 points the following two coordinates: (4, 0) and (3, 4)

alex41 [277]

Answer:

The equation of the line is y = -4·x + 16

10 points on the line include;

(0, 16), (1, 12), (2, 8), (3, 4), (4, 0), (5, -4), (6, -8), (7, 12), (8, -16), (9, -20), and (10, -24)

Explanation:

The given points through which the line passes are;

(4, 0) and (3, 4)

The slope, 'm', of the line is given as follows;

$Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Therefore, the slope of the line is (4 - 0)/(3 - 4) = -4

In point and slope form we can get;

$\dfrac{y-0}{x-4} = -4$

The equation of the line in point and slope form is therefore;

y = -4·(x - 4) = -4·x + 16

The equation of the line in slope and intercept form is

y = -4·x + 16

10 points on the line are obtained using the equation of the line and the desired x-values input into cells on MS Excel and presented here as follows;

(0, 16), (1, 12), (2, 8), (3, 4), (4, 0), (5, -4), (6, -8), (7, 12), (8, -16), (9, -20), and (10, -24)

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2 years ago

Create a trigger that prevents anychange(insert, update, or delete)to the grade attribute of the takesrelation that would change

Alchen [17]

Answer:

The trigger code is given below

create trigger F1_Del

after delete on Friend

for each row

when exists (select * from Friend

where ID1 = Old.ID2 and ID2 = Old.ID1)

begin

delete from Friend

where (ID1 = Old.ID2 and ID2 = Old.ID1);

end

create trigger F1_Insert

after insert on Friend

for each row

when not exists (select * from Friend

where ID1 = New.ID2 and ID2 = New.ID1)

begin

insert into Friend values (New.ID2, New.ID1);

end

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3 years ago

Which of the following scenarios might indicate that you have been a victim of identity theft?A)Your credit report displays acco

victus00 [196]

Answer:

Option A is the correct answer for the above question.

Explanation:

A Victim is a person, who faces the problem of a criminal person. Here in the question, the scenario is that a user is a victim of the identity of being theft by some other person. So the user can get known by the help of option a, which suggests that the user's credit card report display something which is not done by him then it can be the scenario, where the user can understand that he is a victim. hence option a is the correct answer where the other option is not because--

Option B suggests the user does not pay the bill on time but it is a general case because the bill is paid by the user is in every month not a single time.
Option C suggests both options (A and B) are correct, but option b is not the correct.
Option D suggests that no option is valid from the above but option A is the correct.

7 0

3 years ago

________ software helps run the computer and coordinates instructions between other software and the hardware devices. recovery

madam [21]

Your answer is System Software. Hope this helps.

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3 years ago

What is the main difference between EDBAC and EDNIAC......

lawyer [7]

Answer:

EDVAC (Electronic Discrete Variable Automatic Computer) was the successor to ENIAC, was binary based, and used stored programs, and was also designed by Eckert and Mauchly, UNIVAC I (UNIVersal Automatic Computer I) was the first commercial computer. It was designed by the same two men who designed ENIAC and EDVAC.

Explanation:

6 0

3 years ago

Read 2 more answers