Ask question

Ask question

All categories

3 years ago

10

Given tan A =7/24, find the cos B. A. 7/25 B. 24/7 C. 24/25 D. 7/24

2 answers:

mestny [16]3 years ago

6 0

I would think c.
Hope this helps

kap26 [50]3 years ago

5 0

C-solve for hypotenuse which is 25 if tan A is 7/24 meaning the opposite is 7 and the adjacent is 24 then cos which is adjacent/hypotenuse would be 24/25

You might be interested in

Prove that the triangle EDF is isosceles. Give reasons for your answer.

Gekata [30.6K]

Answer:

$\triangle EDF$ is isosceles.

Step-by-step explanation:

Please have a look at the attached figure.

We are <u>given</u> the following things:

$\angle EDF = y$

$\text{External }\angle DFG = 90 +\dfrac{y}{2}$

Let us try to find out $\angle E$ and $\angle DFE$ . After that we will compare them.

<u>Finding </u> $\angle DFE$ <u>:</u>

Side EG is a straight line so $\angle GFE = 180$

$\angle GFE$ is sum of internal $\angle DFE$ and external $\angle DFG$

$\angle GFE = 180 = \angle DFE + \angle DFG\\\Rightarrow 180 = \angle DFE + (90+\dfrac{y}{2})\\\Rightarrow \angle DFE = 180 - 90 - \dfrac{y}{2}\\\Rightarrow \angle DFE = 90 - \dfrac{y}{2} ....... (1)$

<u>Finding </u> $\angle E$ <u>:</u>

<u>Property of external angle:</u> External angle in a triangle is equal to the sum of two opposite internal angles of a triangle.

i.e. external $\angle DFG$ = $\angle E + \angle EDF$

$\Rightarrow 90+\dfrac{y}{2} = \angle E + y\\\Rightarrow \angle E = 90+\dfrac{y}{2} -y\\\Rightarrow \angle E = 90-\dfrac{y}{2} ....... (2)$

Comparing equations (1) and (2):

It can be clearly seen that:

$\angle DFE = \angle E =90-\dfrac{y}{2}$

The two angles of $\triangle EDF$ are equal hence $\triangle EDF$ is isosceles.

8 0

3 years ago

Vocabulary Choose the example of an inverse relationship.

natulia [17]

Answer:

which statement is equivalent to the inequality 14x-14>-7x+7

x>21

x>1

x<

x=1which statement is equivalent to the inequality 14x-14>-7x+7

x>21

x>1

x<

x=1which statement is equivalent to the inequality 14x-14>-7x+7

x>21

x>1

x<

x=1which statement is equivalent to the inequality 14x-14>-7x+7

x>21

x>1

x<

x=1which statement is equivalent to the inequality 14x-14>-7x+7

x>21

x>1

x<

x=1which statement is equivalent to the inequality 14x-14>-7x+7

x>21

x>1

x<

x=1which statement is equivalent to the inequality 14x-14>-7x+7

x>21

x>1

x<

x=1

4 0

3 years ago

Solve<br><br> PLEASE HELP AND HURRY!

Luda [366]

Answer:

it's -7 1/3 because since the equation is all negative you would just simply add the -5 and -2 1/3

3 0

2 years ago

Which equation is equivalent to StartRoot x EndRoot + 11 = 15?

Lerok [7]

The equivalent expression of $\sqrt x + 11 = 15$ is $\sqrt x = 15 - 11$

<h3>How to determine the equivalent expression?</h3>

The complete question is in the attached image

The expression is given as:

$\sqrt x + 11 = 15$

Subtract 11 from both sides of the equation

$\sqrt x + 11 - 11= 15 - 11$

This gives

$\sqrt x = 15 - 11$

Hence, the equivalent expression of $\sqrt x + 11 = 15$ is $\sqrt x = 15 - 11$

Read more about equivalent expression at:

brainly.com/question/4344214

#SPJ1

5 0

2 years ago

37-0 = 37. what is the property used forr this sum?

denis23 [38]

O is the property for the question.

8 0

3 years ago