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
dezoksy [38]
2 years ago
8

Can someone help me on this ?

Mathematics
1 answer:
goblinko [34]2 years ago
4 0

Answer: b

Step-by-step explanation:

You might be interested in
Sin 31 / 2 cos 59<br>evatuate with out using table​
xxTIMURxx [149]

Answer:

Find the exact value using trigonometric identities.

0.13763793

8 0
3 years ago
Bobby can run a mile in 7 minutes. Use the ratio table to help determine how
meriva

Answer:

4 miles

Step-by-step explanation:

In 7 minutes he runs 1 mile

So in 28 minutes he runs 4 miles

<u>How did I get this answer?</u>

7×4=28

So 1×4=4

In ratios, when you times anything by something, you must do the same to the other part of the ratio.

7 0
2 years ago
Read 2 more answers
The two perpendicular lines of a coordinate plane that intersect at the origin (singular: axis)
Svetach [21]
3. Axes
That’s what it should be
3 0
2 years ago
Read 2 more answers
A sock drawer contains eight navy blue socks and five black socks with no other socks. If you reach in the drawer and take two s
Rzqust [24]

Answer:

a. the probability of picking a navy sock and a black sock = P (A & B)

= (8/13 ) * (5/12) = 40/156 = 0.256

b. the probability of picking two navy or two black is

= 56/156 + 20/156 = 76/156 = 0.487

c. the probability of either 2 navy socks is picked or one black  & one navy socks.

= 40/156 + 56/156 = 96/156 = 0.615

Step-by-step explanation:

A sock drawer contains 8 navy blue socks and 5 black socks with no other socks.

If you reach in the drawer and take two socks without looking and without replacement, what is the probability that:  

Solution:

total socks = N = 8 + 5 + 0 = 13

a) you will pick a navy sock and a black sock?

Let A be the probability of picking a navy socks first.

Then P (A) = 8/13

without replacing the navy sock, will pick the black sock, total number of socks left is 12.

Let B be the probability of picking a black sock again.

 P (B) = 5/12.

Then, the probability of picking a navy sock and a black sock = P (A & B)

= (8/13 ) * (5/12) = 40/156 = 0.256

b) the colors of the two socks will match?

Let A be the probability of picking a navy socks first.

Then P (A) = 8/13

without replacing the navy sock, will pick another navy sock, total number of socks left is 12.

Let B be the probability of another navy sock again.

 P (B) = 7/12.

Then, the probability of picking 2 navy sock = P (A & B)

= (8/13 ) * (7/12) = 56/156 = 0.359

Let D be the probability of picking a black socks first.

Then P (D) = 5/13

without replacing the black sock, will pick another black sock, total number of socks left is 12.

Let E be the probability of another black sock again.

 P (E) = 4/12.

Then, the probability of picking 2 black sock = P (D & E)

= (5/13 ) * (4/12) = 5/39 = 0.128

Now, the probability of picking two navy or two black is

= 56/156 + 20/156 = 76/156 = 0.487

c) at least one navy sock will be selected?

this means, is either you pick one navy sock and one black or two navy socks.

so, if you will pick a navy sock and a black sock, the probability of picking a navy sock and a black sock = P (A & B)

= (8/13 ) * (5/12) = 40/156 = 0.256

also, if you will pick 2 navy sock, Then, the probability of picking 2 navy sock = P (A & B)

= (8/13 ) * (7/12) = 56/156 = 0.359

now either 2 navy socks is picked or one black  one navy socks.

= 40/156 + 56/156 = 96/156 = 0.615

4 0
3 years ago
Can someone please help me on 20 and 21
Feliz [49]
For number 20 x = 4
3 0
3 years ago
Other questions:
  • A quarter is 1/4 dollar. Nanny has 28 quarters. How much money does she have?
    5·2 answers
  • A battery was charged. When the changing began, it was 23 percent full. After 30 minutes of charging, the battery was 89 percent
    10·1 answer
  • Write the first four terms of the sequence<br><br><br> the rule is: start at 3 1/8, subtract 3/4
    6·1 answer
  • 4 7/12 - 2 1/6 simplified
    12·2 answers
  • A cone and a cylinder have the same size base. The cones height is 6 times the height of the cylinder. How much greater is the v
    7·1 answer
  • 3 pizzas are shared equally between 10 people. What fraction of a pizza does each person receive?
    15·1 answer
  • The measures of the angles of a triangle are shown in the figure below. Solve for x.
    11·2 answers
  • Lucas started off with $10.00. he gave away 20% of his money to his sister, and 30% of the remainder of his money to his brother
    8·2 answers
  • HELP ASAP (POLYNOMIALS)<br><br> True or False:<br><br> 2x2 + 3x - 4 is equivalent to 4 + 3x - 2x2
    5·1 answer
  • #1 need help asap plzzzzzzzzzzzz
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!