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
Ne4ueva [31]
3 years ago
9

Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest

Mathematics
2 answers:
Galina-37 [17]3 years ago
8 0

Answer:

1/21

Step-by-step explanation:

lana [24]3 years ago
4 0

Answer:

1/21

Step-by-step explanation:

Cards: 2,3,4,5,6,7,8      7 cards

1st card :5

P(5) = number of 5's / total

       = 1/7

Then we keep the card

Cards: 2,3,4,6,7,8   only 6 cards left

card less than 4: 2,3

P (card less than 4)  = number of cards less than 4/ total cards

                                  = 2/6 = 1/3

P (5, no replacement, card less than 4) = P(5) * P( less than 4)

                                                                 = 1/7 * 1/3

                                                                  =1/21

You might be interested in
Find an equation of the sphere that passes through the point (6, -2, 3) and has center (-1, 2, 1). Find the curve in which the s
svet-max [94.6K]

Answer:

A)  x^2 + 2x+ y^2 - 4y + z^2 - 2z - 63 = 0

B) radius = 5

center  = (4,-1,-3)

Step-by-step explanation:

x^2 + y^2 + z^2 - 8x + 2y + 6z + 1 = 0

A ) Determine the curve in which the sphere intersects the yz-plane

determine the radius ( r ) =  √((6-(-1))2+(-2-2)2+(3-1)2) = √69

next the equation of the sphere ( curve in which the sphere intersects the yz-plane )

x^2+2x+y^2-4y+z^2-2z-63 = 0

B) determine the center and radius of the sphere

X^2 + y^2 + z^2 -8x + 2y +6z + 1 = 0

(x-4)2+(y+1)2+(z+3)2 = 25 = 52

radius = 5

center  = (4,-1,-3)

5 0
3 years ago
sally had 21 marbles her friendgave her some more.she then had 35 marbles. write an expression that shows how many marbles she h
Marina86 [1]

Answer:

21 + x = 35

x = 14

Hope this helps :)

3 0
3 years ago
Help meeeeeeeeeeeeeeeeeeee
Yanka [14]
I think the interquartile range is 13. Hope it help!
7 0
3 years ago
0.9x + 2.3x = -6.4<br>I don't understand this lol​
marissa [1.9K]

Answer:

-2

Step-by-step explanation:

0.9x + 2.3x = -6.4

3.2x = -6.4

x = -2

3 0
3 years ago
Read 2 more answers
Line AB is Perpendicular to line BC. A=(-3,2) and C=(2,7). Which of the following could be the coordinates of B? Select all that
Llana [10]

Answer:

The answer would be Choice F; (-3,7)

Step-by-step explanation:

  1. Plot the two guaranteed given points
  2. A, (-3,2) and C, (2,7)
  3. Find the point where the x and y would share and then form a right angle. This is called being Perpendicular.
  4. So, take the <em>x</em> of A, and the <em>y</em> of C and you have the coordinates of B.

(-3,7)

6 0
3 years ago
Read 2 more answers
Other questions:
  • This autobiography takes place in Antarctica Australia Alaska
    6·2 answers
  • Heather and her family are going to the grand opening of an amusement park. There is a special price on tickets this weekend. Ti
    6·1 answer
  • What is the multiplicative inverse of 1.5
    14·1 answer
  • 949-400-4464. Be my friend??
    10·2 answers
  • fifty students are trying to raise at least $12,500 for a school trip they have already raised $1,250 how much should each stude
    9·1 answer
  • Shereena made the following table she can’t decide if it’s arithmetic or geometric sequence look at the picture bellow and answe
    14·1 answer
  • HELP ASAP !!!Simplify.<br> (-2)^4(-2) -
    14·2 answers
  • A computer gererates 80 integers from 1 to 5 at random. The results are recrded in the table. What is the experimental probabili
    12·1 answer
  • We have 500 mice and want to determine how effective a given cure for a virus. 10 mice are taken from the group and injected wit
    13·1 answer
  • Could someone please answer this before the end of the day? I'll give brainliest but explain your answer, or I won't give you th
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!