Ask question

Ask question

All categories

4 years ago

11

There are 7 people on a cycling team. Their coach mush pick two of them to be Co - Captain. How many different pairs can the cou

ch choose?

1 answer:

garik1379 [7]4 years ago

4 0

21, because 7 choose 2 = 21

You might be interested in

Segment BD is an altitude of triangle ABC. Find the area of the triangle.

Sever21 [200]

Answer: The correct option is A, i.e., 7.5.

Explanation:

It is given that ABC is a triangle and BD is an altitude.

Since BD is an altitude, therefore the height of the triangle is BD and the base of the triangle is AC.

The distance formula to find the distance between two points is,

$D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

First, we find BD, where B(-1,4) and D(2,4).

$BD=\sqrt{(2+1)^2+(4-4)^2}=\sqrt{9} =3$

So, the height of the triangle is 3.

Now, we find the value of AC, where A(2,1) and C(2,6).

$AC=\sqrt{(6-1)^2+(2-2)^2}=\sqrt{25} =5$

So, the base of the triangle is 5.

The formula to find the area of a triangle is,

$A=\frac{1}{2}\times {\text{base}}\times {\text{height}}$

$A=\frac{1}{2}\times 5\times 3=\frac{15}{2}=7.5$

Therefore, the area of the triangle is 7.5 unit square and the correct option is A.

6 0

3 years ago

Read 2 more answers

Sorting numbers prime or composite

murzikaleks [220]

prime: 11, 13, 29

composite: 10, 15, 21

7 0

4 years ago

Simplify the expressions:

mestny [16]

Answer:

-1v

0.6y+2.1

3w-p+4

1-6x

0

-5x+10y+z-25

Step-by-step explanation:

Combine like terms

8 0

3 years ago

Pls answer this . I need help

madreJ [45]

Answer:

The ans is -14 if you use desmos and start "finger counting" the slope of -3, y will equal -14 once it reaches (3,y)

3 0

3 years ago

slava [35]

Gxdsudusujssuduydtehd

4 0

3 years ago