answer.
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
Lera25 [3.4K]
2 years ago
7

mr. Chiang announced the grade distribution weeks book reports. Of the 20 students in class, 8 received A's for their book repor

ts,11 receive b's, and 5 receive C's. when is student is chosen at random to be the first one to read his or her book to report to the class, what is the probability that the student choose that has received an A for the book report?
Mathematics
1 answer:
vampirchik [111]2 years ago
3 0

Answer:

yes

Step-by-step explanation:

You might be interested in
You are a pharmacy technician. You need to prepare a 0.85-gram dose of a liquid antibiotic. The medicine is concentrated at 250
Xelga [282]

Answer:

17mL

Step-by-step explanation:

Convert 0.85 gr to miligrams

If 100 mg is 1 gr. Then, 0.85 gr is 850 mg

So, 850 multiply for 5ml and divide for 250 ml

or 850mg  \frac{5ml}{250mg}

So all mg is gone and the amount of mililiters is 17

5 0
2 years ago
Read 2 more answers
In 2009, a city with a population of 796,000 had 2,388 births. What is the number of births per 10,000 in the city?
Tom [10]
796,000/2388=10,000/x
796,000x= (2388*10,000)
796,000x/796,000=23,880,000/796,000
x=30 births
7 0
2 years ago
The scores of eighth-grade students in a math test are normally distributed with a mean of 57.5 and a standard deviation of 6.5.
Anna11 [10]
Approximately 68% of a normal distribution lies within one standard deviation of the mean, so this corresponds to students with scores between (57.5 - 6.5, 57.5 + 6.5) = (51, 64)
8 0
2 years ago
Read 2 more answers
Use the drawing tool(s) to form the correct answers on the provided graph.
anastassius [24]

Answer:

See below in bold.

Step-by-step explanation:

This is the vertex form of a parabola which opens upwards.

To find the x intercept put h(x) = 0:

(x + 1)^2 - 4 = 0

(x + 1)^2 = 4

x + 1 = +/- 2

x = (-3, 0) an (1, 0) are the x-intercepts.

For the y-intercept we put x = 0

y = (0+1)^2 - 4 = -3

y-intercept =  (0, -3).

The vertex  is (-1, -4).

Axis of symmetry is x = -1.

4 0
2 years ago
Read 2 more answers
An airline charges an extra fee if a suitcase weighs more than 50 pounds. After packing, Li’s suitcase weighs 47.75 pounds. Whic
hichkok12 [17]

Answer:

2.25lbs

Step-by-step explanation:

50-47.75=2.25

5 0
2 years ago
Read 2 more answers
Other questions:
  • {(–9, 1), (–5, 2), (0, 7), (1, 3), (6, –10)} Josiah claims that the ordered pair (6, –10) can be replaced with any ordered pair
    14·1 answer
  • Line AB and BC for a right angle at point B. If A(-3,4) and B(4,4) what is the equation of line BC?
    12·2 answers
  • Round 3,872.3155 to the nearest hundred
    11·1 answer
  • Which figure is similar to the parallelogram? (Figures may not be drawn to scale.) A parallelogram has side lengths of 8 and 5.8
    7·2 answers
  • Write the ratio as a fraction in simplest form: 2.35 to 5.25.
    12·1 answer
  • What is the measure of Angle D F E?
    10·1 answer
  • Ainsley works for the owners of a bookstore. Her starting salary was 24,500, and she gets a 3% raise each year. Write an equatio
    6·1 answer
  • Given: EL- tangent, EK- secant <br> Prove: EJ·LK = EL·LJ
    13·1 answer
  • Ashad is rewriting the expression 28 a + 36 a b as a product. Which statements about the expression are accurate and relevant to
    7·1 answer
  • HELPP ASAP NEEDED MATH
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!