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AlladinOne [14]
3 years ago
7

PLEASE HELP FIRST CORRECT ANSWER GETS BRAINLIEST!!!!!!!!!

Mathematics
1 answer:
andreev551 [17]3 years ago
7 0
1st calculate the hypotenuse of the right triangle with one side =|-7| and the second side = |-14|
(Hypotenuse)² = 7² + 14² = 625 & Hypotenuse = √625 = 25; now that we have the hypotenuse we can calculate all 6 trigo values:

a) sin Ф = (opposite side) / (hypotenuse) = -14/25  (the student gave a wrong answer).

b) cos Ф = (adjacent) /(hypotenuse) = -7/25 (Right answer)

c) tan Ф = (opposite side) / (adjacent) = -14/ -7 = 14/7 = 2 (the student gave a wrong answer)

d) csc Ф = 1/sin Ф = (1) : (-14/25) = - 25/14 (the student gave a wrong answer)

e) sec Ф = 1/cos Ф = -25/7 ( Right question)

f) cot Ф = 1/tan Ф = 1/2 (the student gave a wrong answer)
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If someone could help it would be greatly appreciated.
Alisiya [41]

Answer:

a) line segment

b) point

c) line

Step-by-step explanation:

A line segment is made up of 2 points.

No matter where the lines intersect (doesn't have to be perpendicular), it forms a point.

A line is straight, hence the 3 collinear points.

3 0
2 years ago
Teresa, Eric, and Ryan sent a total of 99 text messages over their cell phones during the weekend. Eric sent 3 times as
faust18 [17]

I'll use t for the messages Teresa sent, e for messages Eric sent, and r for messages Ryan sent.

Therefore we have, t+e+r=99.

From the text we also know:

e=3r ; r=t+6

If we substitute in the original equation we get:

t+3(t+6)+t+6=99; By simplifying it we get

5t=75 , therefore t=75/5=15.

Since Teresa send 15 messages,Ryan sent 6 more then here, so he send 21. Eric sent three times the

messages Ryan sent so he sent 63 messages. If we add them together 15+21+63, we get the total of 99 messages.

8 0
3 years ago
Miss Sarah only wants one half of a sandwich she says Mr. tom will need one 16th of a pound of cheese for her sandwich Mr. Tom s
ch4aika [34]
Miss Sarah will need the same amount as Mr. Tom if she divides 1/16 by 2 and get 1/8. So they will have the same amount of cheese as the other person does
6 0
3 years ago
Please write a equation for this table
Hitman42 [59]

Answer:

  y = 5x +2

Step-by-step explanation:

The point (0, 2) tells us the y-intercept is 2.

If we translate the table down 2 units by subtracting 2 from every y-value, it becomes ...

  6, 30

  -2, -10

  0, 0

  10, 50

We notice these values are all related by a factor of 5 (they are proportional). That means the equation will be a straight line with slope 5 and y-intercept 2.

  y = 5x +2

6 0
2 years ago
How do you work this out?
Ira Lisetskai [31]
I'm guessing you find the length of the hypotenuse using the pythagorean theorem. 

a² + b² = c²     a and b are the legs and c is the hypotenuse

15² + 8² = c²

225 + 64 = c²

289 = c²

√289 = √c²

17 = c

hope that helps, God bless!
3 0
3 years ago
Read 2 more answers
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