All categories

2 years ago

Find the values of sine cosine and tangent for angle A

Mathematics

1 answer:

Pachacha [2.7K]2 years ago

3 0

Answer:

Option A

Step-by-step explanation:

<u>Find the length of AB:</u>

AB = $\sqrt{7^2+4^2} =\sqrt{65}$

sine = opposite / hypotenuse

sin A = 4/ $\sqrt{65}$ = 4 $\sqrt{65}$ /65

cosine = adjacent / hypotenuse

cos A = 7/ $\sqrt{65}$ = 7 $\sqrt{65}$ /65

tangent = opposite / adjacent

tan A = 4 / 7

Correct choice is A

You might be interested in

If 9(x - 9) = -11, then x = ?

balu736 [363]

Answer:

70/9

Step-by-step explanation:

9x-81= -11

9x=-11+81

9x= 70

x= 70/9

4 0

3 years ago

Read 2 more answers

1) write the equation of the

Helen [10]

Answer:

y=3/2x-2

Step-by-step explanation:

Find the slope first:

$m=\frac{y_{2-y_{1} } }{x_{2}-x_{1} } =\frac{1-(-2)}{2-0}=\frac{3}{2}$

Then solve for y-intercept:

$y=\frac{3}{2}x+b\\-2=\frac{3}{2}(0)+b\\-2=b$

Now, write out your complete equation:

y=3/2x-2

6 0

4 years ago

Lana runs a business where she fixes bikes. She charges $15.75 per hour for her labor as well as a $25 flat fee for any parts sh

Masja [62]

Answer:

y = 15.75x + 25 is the linear equation

$88 would be the total cost

Step-by-step explanation:

First, create the equation using y = mx + b, where x is the number of hours:

y = 15.75x + 25 will be the equation, since the charge is $15.75 per hour and the flat fee is $25

There are 4 hours in between 8:30 AM and 12:30 PM, so to find the cost, plug in 4 as x and simplify:

y = 15.75x + 25

Plug in 4 as x:

y = 15.75(4) + 25

y = 63 + 25

y = 88

So, the total cost would be $88

8 0

3 years ago

Patty wants a triangle garden in her backyard for all of her vegetables. She

otez555 [7]

Answer:

Step-by-step explanation:

the hypothenuse is the largest side in the right triangle

we have 2 side, 7,8

in a right triangle, c^2= a^2+b^2

where c is the hypothenuse

c^2=49+64=113

c=sqrt113=aprox 10.6

so, the answer is no if it has to be exactly 10 ft the hypotenuse

5 0

3 years ago

Whats the difference between a sequence and a series?

snow_tiger [21]

Answer:

A sequence is defined as an arrangement of numbers in a particular order. On the other hand a series is defiend as the sum of the elements of a sequence!

3 0

3 years ago