All categories

2 years ago

AB=25 , BD=4, Solve for the radius? Please help!!!!!

Mathematics

1 answer:

Alex787 [66]2 years ago

4 0

9514 1404 393

Answer:

r = 14.5

Step-by-step explanation:

AD is the perpendicular bisector of chord EC, so is the diameter of the circle. The radius is half the diameter.

r = AD/2 = (AB +BD)/2 = (25 +4)/2 = 29/2

r = 14.5

Segments BE and BC are 10 = √(25·4)

You might be interested in

A person is running a distance race at a constant rate. What time will they finish the race what information would you need to b

Zinaida [17]

Answer:

you need the distance they're running and the pace they are running at.

3 0

2 years ago

Read 2 more answers

Lin ran 2 3/4 miles in 2/5 of an hour, Noah ran 8 2/3 miles in 4/3 of an hour, how far would Lin run in 1 hour?

Marizza181 [45]

Answer:

$6\frac{7}{8}\ miles$

Step-by-step explanation:

Given that Lil's distance in 2/5 hrs is 2 3/4hrs

-Let x be the distance ran in 1 hr.

#We equate and cross multiply to solve for x as follows:

$\frac{2}{5}\ hrs=2\frac{3}{4}\\1\ hr=x\\\\\therefore x=2\frac{3}{4}/\frac{2}{5}\\\\=6\frac{7}{8}\ miles$

Hence, Lil can run 6 7/8 miles in 1 hr.

5 0

2 years ago

HELP IM ON A TIME LIMIT AND IDK THE ANSWER

aleksandrvk [35]

Answer:

Check step-by-step explanation

Step-by-step explanation:

A = $\frac{1}{2}$ $d_{1} d_{2}$

to solve for $d_{1}$ :

$d_{1}$ = $\frac{2A}{d_{2}}$

to solve for $d_{2}$ :

$d_{2}$ = $\frac{2A}{d_{1}}$

4 0

2 years ago

Please please please

lapo4ka [179]

The answer is y= 3/4x - 4.

6 0

3 years ago

9.1 x 10-31 kg.

Reptile [31]

1 electron has a mass of 9.1 X 10-31 kg. How many electrons n does it take to make 1 kg?

(1 e)/(9.1 X 10-31 kg) = n/(1 kg)

So, n = 1.10 X 1030 electrons

Each electron has a charge of 1.6 X 10-19 C, where C stands for Coulombs. So, the n electrons have a charge of q = ne = (1.10 X 1030 electrons) X (1.6 X 10-19 C/electron) = 1.76 X 1011 C.

7 0

2 years ago