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
IrinaK [193]
1 year ago
12

(2) The scores obtained by a class of

Mathematics
1 answer:
SVETLANKA909090 [29]1 year ago
5 0

Answer:

Below.

Step-by-step explanation:

2)

(a) Prob(exactly 6 marks) =  2/10 = 1/5

(b) Prob(At least 6 marks) = 5/10 = 1/2.

3)

Prob ( Queen of hearts) = 1/52

4)

Probability of a 6 in one throw = 1/6.

So expected number of 6's in 300 throws

= 1/6 * 300

= 50.

You might be interested in
Please help me with this
eduard

Answer:

x = -3/2 or x= sqareroot41/2

Step-by-step explanation:

4 0
2 years ago
A public swimming pool that holds 45,000 gallons of water is going to be drained for maintenance at a rate of 100 gallons per mi
crimeas [40]

Answer:

450 minutes

Step-by-step explanation:

Given

w = 45000 - 100t

Required

Determine how long it'll take to empty the pool

Being empty means there's no water in the pool.

So, we have to set w to 0 to get the value of t

i.e w = 0

Substitute 0 for w in w = 45000 - 100t

0 = 45000 - 100t

Collect Like Terms

100t = 45000

Divide through by 100.

t = 450

Hence, it'll take 450 minutes to empty the pool

8 0
2 years ago
7 5/16 as a decimal​
larisa [96]

Answer:

7.3

Step-by-step explanation:

7 5/16 as a decimal is 7.3125 which can be rounded to 7.3.

5 0
2 years ago
Read 2 more answers
Solve i + j + t (3i - j) = -i + s (j)<br> In the context of Vector Equations of a Line
Oksana_A [137]

Answer:

r = i + j + (-2/3)(3i - j)

Step-by-step explanation:

Vector Equation of a line - r = a + kb ; where r is the resultant vector of adding vector a and vector b and k is a constant

if a = i + j ; b = t(3i - j) and r = -i +s(j)

for this to be true all the vector components must be equal

summing i 's

i + 3ti  = -i; then t = -2/3

j - tj = sj; then s = 1-t; substitue t; s=1+2/3 = 5/3

so r = i + j + (-2/3)(3i - j) which will symplify to -i + 5/3j

3 0
2 years ago
Help out omggggg !!!!!!
Alex17521 [72]

Answer:

sorry the diagram is not clear......

3 0
2 years ago
Other questions:
  • Write the fraction as a percent: 11/50. (Simplify your Answer.)
    11·1 answer
  • 6(y + 5) − 3y simplify
    12·1 answer
  • You are feeding your dog Mick’s Dog Food. It costs $12.95 for a 30-pound bag. You feed a very large dog 3.5 cups of food per day
    10·1 answer
  • Which expression results from using the Distributive Property to rewrite -9.1 (−4) − 9.1 (12)?
    14·1 answer
  • What is the value of T?
    15·1 answer
  • Drag
    5·1 answer
  • The beachfront path was 5,942 feet long.
    14·1 answer
  • If you help me I'll make as brilliant​
    14·1 answer
  • Please help me what are the coordinates of P the scale factor is 3
    6·1 answer
  • a bag contains Stephanie five marbles, some red some blue. The ratio of red marbles to blue ones is 3:2. how many red marbles ar
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!