1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vesna [10]
3 years ago
15

Geometry please help

Mathematics
1 answer:
amid [387]3 years ago
6 0
Radius is 5 units, since CO is the radius.
SO, AO is also 5 units.

AD² = 5² - 3²
AD² = 16
AD = 4

Thus, AB = 8 (ie C)
You might be interested in
a bacteria triples it’s original population in 25 hours (A=3A0). How big will it’s population be in 100 hours
Maru [420]

Answer:

81 times the original size

Step-by-step explanation:

AA0ktA=3A0=?=?=25hours=A0ekt

Substitute the values in the formula.

3A0=A0ek⋅25

Solve for k. Divide each side by A0.

3A0A0=e25k

Take the natural log of each side.

ln3=lne25k

Use the power property.

ln3=25klne

Simplify.

ln3=25k

Divide each side by 25.

ln325=k

Approximate the answer.

k≈0.044

We use this rate of growth to predict the number of bacteria there will be in 100 hours.

AA0ktA=3A0=?=ln325=100hours=A0ekt

Substitute in the values.

A=A0eln325⋅100

Evaluate.

A=81A0

At this rate of growth, we can expect the population to be 81 times as large as the original population.

7 0
3 years ago
Nancy's 50-meter freestyle swim time was 28.004 seconds. Betty’s 50-meter freestyle swim time was 27.949 seconds. What was the d
loris [4]
The difference between the 2 times would be .055 seconds...
6 0
3 years ago
Read 2 more answers
"A consultant compiled the following data set that shows" the number of visits made to the National Museum of American History f
aalyn [17]

Answer:

Step-by-step explanation:

The best option is for the consultant to remove these data points because they are outliers.  Unusual data points which are located far from rest of the data points are known as outliers.

3 0
4 years ago
Solve the equations by elimination method
notsponge [240]

Answer: 1375

Step-by-step explanation:

70-2= 70

70/2=35 (x=35)

4x=140

x^35=1225

1225+140=1375

3 0
3 years ago
The library at school is organized by fiction and nonfiction books. There are 3 nonfiction books for every 7 fiction books. How
Andreas93 [3]

Answer:

There are 800 total books.

Step-by-step explanation:

In order to find this, we need to create a proportion that compares the number of non-fiction books to the total. First would be the scale factor and the second would be the total.

3/10 = 240/x

Now we can cross multiply to solve

240*10 = 3 * x

2400 = 3x

800 = x

8 0
4 years ago
Read 2 more answers
Other questions:
  • Write an equivalent equation that does not contain fractions.
    13·1 answer
  • et p ↔ q represent the statement "He is wearing a coat if and only if the temperature is below 30°F.” Which represents p ∧ q? He
    15·1 answer
  • 18 points were scored by one figure skating pair and that was 40% of their final score. What was the final score for that pair o
    13·1 answer
  • Help to part b please
    10·1 answer
  • What is 5.83095189 simplified as an integer
    6·1 answer
  • 2) There are 500 calories in 5 servings of Sour
    7·1 answer
  • What is the slope of a surface having a rise of 5 feet and a run of 0 feet
    8·1 answer
  • 14. Solve for x.<br> 110<br> (8x - 1)<br> (5x + 36)<br> (6x - 2)<br> (7x+19)<br> 116<br> 110
    8·2 answers
  • Is 0.2 a terminating or repeating decimal?
    9·2 answers
  • Pleas help, Enter an inequality that represents the graph in the box.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!