All categories

3 years ago

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)

You might be interested in

X = {(2, 3), (2, 4), (2, 5), (2, 6)} is x a function and why? no, each ordered pair in this list has the same first element. yes

Vesnalui [34]

For every input, there is one output
for every x there is one y
(x,y)

if x repeats with a differnt y, it's not a function
we see
(2,3) and (2,4) and all of them

no, not a function
no, each ordered pair in this list has the same first element
answer is first one

6 0

3 years ago

Simplify the numerical expression 5.75 - 1/2 (20÷2.5) ÷ 2+6

svet-max [94.6K]

Answer:

5.75 - 1/2 times 8 divided by 2 + 6

Step-by-step explanation:

3 0

3 years ago

Given the points A(-6,16) B(2,-4)

pantera1 [17]

Neither… bc the lines are going the same direction or crossing each other

4 0

3 years ago

Find an equation of the circle that has center (-2, 6) and passes through (-6, 1).

Darya [45]

Answer:

(x+2)^2 + (y-6)^2 = 41

Step-by-step explanation:

The equation for a circle is (x-h)^2+(y-k)^2=r^2

So first, it is known that the circle's center is at (-2,6), Therefore, this can be filled in:

(x+2)^2+(y-6)^2=r^2

Next, we need to find the radius, and one of the points is already known, being (-6, 1)

With this, find the distance between these two points by doing the Pythagorean Theorem, a^2+b^2=c^2. The a^2 would be the x value changed and the b^2 would be the y value changed between the two numbers. Note that this is interchangeable.

To find a:

-2 to -6 = change of 4

To find b:

6 to 1 = change of 5

Next, write out the equation for this:

4^2+5^2=c^2

16+25=c^2

41=c^2

c = √41

The radius would be √41, so the equation can now be completed. Since c will be brought to the second power, this will cancel out the square root.

(x+2)^2 + (y-6)^2 = 41

Hope that helps.

8 0

3 years ago

Find the difference in the volume and total area of a cylinder with both a radius and height of 1. R = 1, h = 1 The number of sq

Vikentia [17]

Answer:

The difference in the volume of cylinder and total surface area of cylinder =.

The number of sq units of total area exceeds the number of cu.units in the volume .

Step-by-step explanation:

Given radius of cylinder =1 unit

Height of cylinder= 1 unit

We know that formula of volume of cylinder =

Where r= Radius of the cylinder

h= Height of the cylinder

By using this formula we can find the volume of cylinder

volume of cylinder = =

By using this formula we can find total surface area of cylinder

Total surface area of cylinder = sq units .

Difference between volume of cylinder and total surface area of cylinde= =

Total surface area of cylinder - volume of cylinder=

Total surface area of cylinder = + volume of cylinder

Hence, the number of sq units of total surface area exceed the number of cu.units in the volume by .

3 0

2 years ago