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
arlik [135]
3 years ago
11

Help me please ASAP

Mathematics
1 answer:
Mashutka [201]3 years ago
4 0

Answer: \frac{5}{35}

Step-by-step explanation:

Since, the total number of contestant = 7,

Thus, the probability that out of 3 contestant, me and my friend is chosen

= \frac{2_C_2\times 5_C_1}{7_C_3}

= \frac{\frac{2!}{2!0!}\times \frac{5!}{1!\times 4!}}{\frac{7!}{4!\times 3!}}

= \frac{1\times 5}{\frac{7\times 6\times 5\times 4!}{4!\times 6}}

=  \frac{5}{35}

⇒ Third Option is correct.

You might be interested in
The origin is the point _________ in the coordinate plane
Mekhanik [1.2K]

Answer:

0

Step-by-step explanation:

6 0
3 years ago
A. 55<br> b. 70<br> c. 110<br> d. 125
morpeh [17]

Answer:

b

Step-by-step explanation:

7 0
2 years ago
Can anyone help me find the (?,?) coordinates? The given shape is a parallelogram.
Sonja [21]

The missing coordinates of the parallelogram is (m + h, n).

Solution:

Given shape is a parallelogram.

Construction: Draw a line joining the diagonals.

<em>In parallelogram, diagonals bisect each other.</em>

Solve it using mid-point formula:

$\text{Midpoint} =\left( \frac{x_1+x_2}{2}, \frac{y_1+y_2}{2}\right  )

Here x_1=m, y_1=n, x_2=h, y_2=0

$\text{Midpoint} =\left( \frac{m+h}{2}, \frac{n+0}{2}\right  )

$\text{Midpoint} =\left( \frac{m+h}{2}, \frac{n}{2}\right  )

Using this midpoint find the missing coordinate.

$\text{Midpoint} =\left( \frac{x_1+x_2}{2}, \frac{y_1+y_2}{2}\right  )

Let the missing coordinates by x and y.

Here x_1=0, y_1=0, x_2=x,  y_2=y

$\text{Midpoint}=\left( \frac{0+x}{2}, \frac{0+y}{2}\right  )

$\left( \frac{m+h}{2}, \frac{n}{2}\right  )=\left( \frac{0+x}{2}, \frac{0+y}{2}\right  )

$\left( \frac{m+h}{2}, \frac{n}{2}\right  )=\left( \frac{x}{2}, \frac{y}{2}\right  )

Now equate the x-coordinates and y-coordinates.

$ \frac{m+h}{2}=\frac{x}{2}, \  \  \  \frac{n}{2} =  \frac{y}{2}

Multiply by 2 on both sides of the equation, we get

m + h = x, n = y

x = m + h and y = n

Hence the missing coordinates of the parallelogram is (m + h, n).

7 0
2 years ago
What is f(x)=4x^2+19<br> find f(-5)
katovenus [111]

Answer:

Step-by-step explanation:

f(x)=4x²+19

f(-5) = 4(-5)² + 19 = 4*25 + 19

= 100 + 19 = 119

7 0
3 years ago
Which numbers are rational?
Otrada [13]
All numbers except for the square root of 50
4 0
3 years ago
Other questions:
  • A person was monitoring how fast the
    14·1 answer
  • 96 ounces equals how many pounds
    12·1 answer
  • In 2010 polls indicated that 75% of Americans favored mandatory testing of students in public schools as a way to rate the schoo
    11·1 answer
  • 120 g lentils
    14·1 answer
  • a bag has a total of 120 notes in denominations of rs 2, rs. 5 and rs. 10. the total value of the notes in the bag is rs 760. if
    11·1 answer
  • 1. A breakfast cereal is made of oats, nuts, and raisins. The advertisements boast that 25% of the cereal in each box is almonds
    9·1 answer
  • Situation:
    5·1 answer
  • The auditorium where the spring musical will be performed has 10 seats in the 1st (front) row. Each row behind the Ist row has 4
    11·2 answers
  • If a hexagon is worth 5 and a triangle is worth 3, what is circle?
    12·1 answer
  • In a sports club 40% of the member are female. 20% of the female members are
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!