2 years ago

I have a question here.

Mathematics

1 answer:

aniked [119]2 years ago

5 0

Answer:

3 ways

Step-by-step explanation:

n = 3; r = 2

$nC_{r}=\dfrac{n!}{r!(n-r)!}\\\\3C_{2}=\dfrac{3!}{2!1!}=\dfrac{3*2*1}{2*1}=3$

You might be interested in

The question is in the picture

Snezhnost [94]

Answer:

my bro from another mo it x=10

7 0

3 years ago

Gary's car travel 30 miles on 1 1/5 gallon of gas. Gary wants to travel 90 miles. How many gallons of gas will his car use?

3241004551 [841]

Gary car will use 18 miles/gallons

7 0

3 years ago

What is 4 (x-y) - 3 (x-y) ?

Anettt [7]

Answer: x+y

Step-by-step explanation: 4x-4y-3x-3y

4x-3x is x

4y-3y is y

7 0

3 years ago

Read 2 more answers

two trains leaves stations 320miles apart at the same time and travel toward eachother. One train travels at 110 miles per hour

I am Lyosha [343]

x/110 = (320-x)/90

<span> Cross multiply</span>

90x = 35200-110x

200x=35200

X = 35200/200 = 176 (distance traveled by train going 110 mph

176/110 = 1.6 hours = 1 hour and 36 minutes

Check: 110*1.6 = 176, 90*1.6 = 144

176+144 = 320

it will take 1.6 hours ( 1 hour 36 minutes) for the trains to meet

4 0

3 years ago

A line is defined by the equation y=2/3x-6. The line passes through a point whose y-coordinate is 0. What is the x- coordinate o

NISA [10]

Answer: Its 9

Thats the answer

5 0

3 years ago

I have a question here. ​

I have a question here.