A teacher is having three students take care of 28 goldfish during the summer. He gave some of them to Alaina. Then he gave twice as many Miguel. He gave twice as many to Kira as he gave to Miguel. How many fish did each student get?

Answer:

C: tan 60 = √3

Step-by-step explanation:

Let the adjacent part of the triangle be x and let the opposite side be y.

Thus, from trigonometric ratios;

x/10 = cos 60

We are given cos 60 = ½

Thus;

x/10 = ½

x = ½ × 10

x = 5

Similarly;

y/10 = sin 60

Now,from trigonometric relationship we know that; sin 60 = cos 30. Thus;

y/10 = cos 30

We are given cos 30 = (√3)/2

Thus;

y/10 = (√3)/2

y = 10 × (√3)/2

y = 5√3

Since it is a right angle triangle with one angle being 60°, it means the other one is 30° since sum of angles in a triangle is 180°.

Thus;

5/(5√3) = tan 30°

1/√3 = tan 30

Similarly;

5/10 = sin 60°

sin 60° = ½

Also;

tan 60 = (5√3)/5

tan 60 = √3

Also;

sin 30 = 5/10

sin 30 = ½

Looking at the options, the only correct one is Option C

Answer: ok so what youll do is ad both sides

Step-by-step explanation:

ad a and b then d

Answer:

175/11 or 165 and 10/11

Step-by-step explanation:

7x-5+4x+10=180

11x+5=180

11x=175

x=175/11

The value of the expression  3-3x6+2 is -13.

What is Expression?

An expression is combination of variables, numbers and operators.

The given expression is 3-3x6+2

Three minus three times of six plus two.

The operators in the expression are plus and minus which are of addition , subtraction and multiplication.

To solve this equation, we need to first multiply 3 and 6, 3×6

which is 18.

we subtract 18 from 3, which is -15.

3-18+2

5-18

When eighteen is subtracted from 5 we get minus thirteen.

-13

Hence, the value of the expression  3-3x6+2 is -13.

To learn more on Expressions click:

brainly.com/question/14083225

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