How many ways can a gymnastics team of 4 be chosen from 9 gymnasts?

Answers

Answer 1
Answer: You have 9 gymnasts and want to make a team of 4. Say one out of the nine is chosen; eight are left. Take one, then seven, and two more can be chosen. Keep doing this and your team is full. So, it's 9*8*7*6 which equals 3,024, since order doesn't matter.
Answer 2
Answer:

Answer:

3,024 in not correct...it's 126

Step-by-step explanation:


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Wat does y2-y1 / x2-x1 have to do with sequences??!!

Help please I dunuuuuuuuuuu

Answers

Step-by-step explanation:

-2/xy is it

The race begins at a rate of 1.5 meters per second. what distance, d, is covered after, t, seconds

Answers

The required distance after time t is given as 1.5t.

Given that,
Speed in the race is given as  1.5 meters per second, to determine distance, d, is covered after, t, seconds.

What is Distance?

Distance is defined as the object traveling at a particular speed in time from one point to another.

What is speed?

Speed is defined as when an object is subjected to movement, the distance covered by the object in a certain time interval is the speed of that object.

Here,
Speed = 1.5 m/s
Distance = speed × time
Distance = 1.5 × t
Distance(d) = 1.5t

Thus, the required distance after time t is given as 1.5t.

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Well if 1.5 m is covered in 1 second, the distance would be calculated as d=1.5t.

Angle b measures 60°. what is the measure of angle that is complementary to angle B?

Answers

Solutions 

Complementary angle are two angles whose sum is 90°. We know that 
Angle b measures 60°. 

60
° + (X) = 90° 

90
° - 60° = (X) 

90
° - 60° = 30° 

(X) = 30
° 

30
° complementary to Angle B
Since a complementary angle is two angles that equal 90 degrees the compliment of angle B would be 30 degrees since 60+30 = 90.

Anyone know it’s middle school work

Answers

Answer:

B

Step-by-step explanation:

Using the conversion

1 Kg = 1000 g , then

3745 ÷ 1000 = 3.745 Kg

Let f(x) = 12 over the quantity of 4 x + 2. Find f(−1).

Answers

The value of f(-1) is -6

what is function?

A function is defined as a relation between a set of inputs having one output each. In simple words, a function is a relationship between inputs where each input is related to exactly one output.

Given:

f(x) = 12/ (4x +2)

for x=-1

then,

f(-1) = 12/ ( 4(-1) + 2)

f(-1) = 12/ (-4 + 2)

f(-1) = 12/(-2)

f(-1) = -12/2

f(-1) = -6

Hence, the value of f(-1) is -6

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f(x)= 12 / (4x+2 )
f(-1) mean to replace x by (-1) 
so, f(-1) = 12 /(-4+2) 
f(-1)= 12/-2 
f(-1) = -6 

What are the roots of the equation x^2+4x-16=0

Answers

x^2+4x+16=0 \n \n \Delta=b^2-4ac \n \Delta=4^2-4*1*16 \n \Delta = 16-64 \n \Delta=-48 \n \Delta \ \textless \ 0 =\ \textgreater \ \text{we don't have REAL solutions} \n \n \text{but it can solve with the multitude of complex numbers }\mathbb{C}