All categories

3 years ago

What is the radius of the circle?

Mathematics

2 answers:

Flauer [41]3 years ago

7 0

Answer:

$\frac{ae}{be} = \frac{ce}{de} = \frac{bc - be}{ad - ae} \\ \\ = > \frac{8}{3} = \frac{15 - 3}{ad - 8} \\ \\ < = > \frac{8}{3} = \frac{12}{ad - 8} \\ \\ = > ad - 8 = \frac{12 \times 3}{8} = 4.5 \\ \\ < = > ad = 4.5 + 8 = 12.5 \\ \\ = > r = 12.5 \div 2 = 6.25$

Stolb23 [73]3 years ago

3 0

Answer:

8×ED=3×15

ED=45/8

the radius is the half of the diameter

so its 45/16

You might be interested in

A box of 36 chocolates was shared amongst Anne, Mark and Sue in the ratio 3: 4: 5. How many chocolate will each get?

user100 [1]

Answer:

A will get 9, B will get 12 and C will get15 chocolates

:-)

6 0

3 years ago

Read 2 more answers

Mrs. Bowman designed the rug shown . If it costs 22$ per square footage to make, how much will Mrs. Bowman pay for the rug?

vazorg [7]

Just multiply 22 by the number it says.

7 0

3 years ago

Read 2 more answers

Out of the 800 students enrolled in a recreational

aliya0001 [1]

256 is the answer to this question.
800x.32 equals 256 seventh graders

6 0

3 years ago

Sherry has a standard deck of cards. The deck has 52 total cards and contains 4 suits: hearts, clubs, diamonds, and spades. Each

tatyana61 [14]

Answer:

c) Events A and B are independent events.

The outcomes of events A and B are dependent on each other.

P(A and B)=P(A)•P(B)

Step-by-step explanation:

Given:

Total number, n = 52

Each suit contains 13 cards: 2 to 10, a jack, a queen, a king, and an ace.

Since there are 4 suits, it means the number of each card is four.

P(A) = event of picking a king

P(B) = event of picking a 3

Therefore the probability of picking a king = $P(A) = \frac{4}{52}$

Probability of picking a 3 = $P(B) = \frac{4}{52}$

Since only a card is picked, the probability a king is picked after picking a 3 is 0.

i.e P(A|B) = 0 ≠ $P(A) = \frac{4}{52}$

option A is wrong

The probability a 3 is picked after picking a king is 0.

i.e P(B | A) = 0 ≠ $P(B) = \frac{4}{52}$

option B is wrong

Events A and B are independent events.

The outcomes of events A and B are dependent on each other.

P(A and B)=P(A)•P(B)

Option C is correct.

7 0

3 years ago

Plutonium-240 decays according to the function Q(t)=Q(subscripto)e^(-kt) where Q represents the quantity remaining after t years

svetoff [14.1K]

<span>The answer is 9,990 years. Using the exponential decay question, we can figure out how long it will take Plutonium-240 to decay from 27 grams to 9 grams. Setting the equation up looks like this, 9 = 27 e^ (-0.00011 t). From this you get, 0.333333 = e ^(-0.00011 t). Next, you simplify by dividing both sides by the natural log, -1.0986 = -0.00011 t. Finally, you solve by dividing both sides by -0.00011, giving 9,987 years for t, rounded up to 9,990 years.</span>

7 0

3 years ago

Read 2 more answers