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melisa1 [442]
3 years ago
13

Evaluate the expression. StartFraction 9 factorial Over 3 factorial EndFraction

Mathematics
2 answers:
Kaylis [27]3 years ago
7 0

Answer:

The answer is C

Step-by-step explanation:

I just did it and got it right.

Verizon [17]3 years ago
5 0

Answer:

The answer you should get is 9:3

Step-by-step explanation:

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Use the synthetic division to find the real zeros of f(x)=2x3 +7x2+2x-3
Dimas [21]

Answer:

f(x) =  {2x}^{3}  +  {7x}^{2}  + 2x - 3 \\ f( \frac{1}{2} ) = 0 \\ f( - 3) = 0 \\ zeros \:  =  > 0 \:  \: and \:  \:  - 3

6 0
3 years ago
Is 5x-7y=2x-7 a linear equation?
Alexandra [31]
Yes. 5x-7y=2x-7
3x-7y=-7-3x
y=1+3/7x
y is the equation of the line where the y-intercept is (0,1) and the slope is 3/7.
3 0
3 years ago
MATRECIES: Suppose ={u,v,w}⊆R3 is linearly independent. Determine if the set 4 ={u, v, v−w, u+v+w} is linearly independent or li
AlladinOne [14]

The set is linearly dependent.

To explicitly prove this, we need to show there is at least one choice of constants c_1,c_2,c_3,c_3\in\Bbb R such that

c_1 u + c_2 v + c_3(v-w) + c_4(u+v+w) = 0

or equivalently,

(c_1 + c_4) u + (c_2 + c_3 + c_4) v + (-c_3 + c_4) w = 0

which is the same as solving the system of equations

\begin{cases} c_1 + c_4 = 0 \\ c_2 + c_3 + c_4 = 0 \\ -c_3 + c_4 = 0 \end{cases}

From the first and last equations, we have c_1=-c_4 and c_3=c_4. Substituting these into the second equation leaves us with c_2-2c_1=0, and so the overall solution set is

c_1 = \dfrac12 c_2 = -c_3 = -c_4

for which there are infinitely many not-all-zero solutions.

3 0
2 years ago
A plane flies 910 miles with the wind in the same time it can go 660 miles against the wind. The speed of the plane is still air
lorasvet [3.4K]

Answer:

The speed of the wind is 48.56

Step-by-step explanation:

We can use the following formula to calculate the distance:

distance = speed x time

Let w represent the speed of the wind.

If the plane flies with the wind, the speed will be the speed of the plane + the speed of wind. Since it can fly 910 miles, and the speed of the plane is 305

910 = (305 + w) x time (1)

If the plane flies against the wind, the speed will be the speed of the plane - the speed of wind. Since it can fly 660 miles, and the speed of the plane is 305

660 = (305 - w) x time (2)

Since the time is equal for both equation in 1 and 2:

\frac{910}{305+w} = \frac{660}{305-w}

→ 910(305-w) = 660(305+w)

→ 277550 - 910 w = 201300 + 660w

→ 1570w = 76250

→ w = 48.56

6 0
3 years ago
WORTH 20 POINTS PLEASE HELP ME
horrorfan [7]
The answer is C.........

5 0
4 years ago
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