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jasenka [17]
3 years ago
7

Find sin A. Please select the best answer from the choices provided

Mathematics
1 answer:
Phantasy [73]3 years ago
8 0

A key word to remember when doing this type of math is "SOHCAHTOA".

Sine =

Opposite over

Hypotenuse

Cosine =

Adjacent over

Hypotenuse

Tangent =

Opposite over

Adjacent


Since this is a 3, 4, 5 triangle, with the sides just multiplied by 7, the opposite of A which is 28 would be simplified to 4.

And the Hypotenuse would be simplified to 5.

So, the answer is 4 / 5!

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Please solve the math problem for me... I will mark you brainliest
natali 33 [55]

Answer:

x=34

Step-by-step explanation:

*it's kind of hard to read the number in parenthesis though but i think it's 5

both angles have to add up to 180º because they are co-exterior angles on parallel lines.

2(x+5)+102=180\\2(x+5)=78\\2x+10=78\\2x=68\\x=34

6 0
2 years ago
Use a graphing calculator to sketch the graph of the quadratic equation, and then state the domain and range. y=-5x^2+3x+10
Bond [772]

Answer:

The answer to your question is:

Domain: (-∞, ∞)

Range: [10, ∞)

Step-by-step explanation:

Data

Graph                                 y = 5x² + 3x + 10

Process

As it is suggested, let's use a graphing calculator. But we can sketch that because it is a quadratic equation, then the graph will be a parabola that opens upwards.

See the graph below.

Domain: are the possible values of the independent variable.

Range: are the reslunting values of the dependent variable.

Then

Domain : (- ∞, ∞)             It is an  open interval because -∞ and ∞ are

                                       not included.

Range : [10, ∞)                It is close because 10 is included.

3 0
3 years ago
Please help! Correct answer only, please!
MAXImum [283]

Answer:

B)

Step-by-step explanation:

If two square matrix, with same dimensions, are inverse of one another, their product will always be the identity matrix with the same dimensions.

The matrix A and B are 2x2, so the result of the product A * B is a 2x2 identity matrix, that is represented as follows:

I = [1 0 ; 0 1]

(First line: 1 0, second line: 0 1)

So the correct option is B)

7 0
3 years ago
PLEASE HELP!!!!
elixir [45]

The Answer is C 5/6


250/300 reduced and simplified is 5/6

7 0
3 years ago
Read 2 more answers
what is the smallest number of degrees needed to rotate a regular pentagon around its center onto itself
Serhud [2]
Since a pentagon has five identical sides, rotating it by (360 degrees/5) will result in the same image. 360/5=72 degrees
8 0
3 years ago
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