Answer:
radius is half of the diameter
42/2= 21
the radius is 21 cm
Step-by-step explanation:
Step-by-step explanation:
Draw a right triangle with one leg value is 4 and the other leg value is 3
The triangle is attached below
To find hypotenuse , use Pythagorean theorem

opposite side = 4, adjacent side =3 and hypotenuse = 5
Apply trigonometric ratios






Answer:
Your answer is <u>B.</u><u> </u><u>4</u><u>.</u><u>5</u><u>0</u><u>r</u><u> </u><u>+</u><u> </u><u>1</u><u>2</u><u>.</u><u>5</u><u>0</u><u> </u><u>=</u><u> </u><u>7</u><u>1</u><u>.</u>
The answer is 19y – 9.
First, distribute the -3 to ( -4y + 3 ). So:
= ( 12y – 9 ) + 7y
Then, combine like terms. In this case, the like terms are 12y and 7y. So:
= 12y – 9 + 7y
= 19y – 9