I’m so confused & I don’t get this at all. Can someone please help me. I’ll give brainliest!

9514 1404 393

Answer:

  240

Step-by-step explanation:

The generic k-th term of the expansion of the binomial ...

  (a +b)^n

is given by ...

  (nCk)a^(n-k)b^k . . . . . where nCk = n!/(k!(n-k)!) and 0 ≤ k ≤ n

For this problem, we have ...

  a=2x, b=y, n=6, k=2

Then the 2nd term (counting from 0) is ...

  6C2×(2x)^4×y^2 = (6·5)/(2·1)·16x^4·y^2

  = 240x^4y^2

The desired coefficient is 240.

_____

Additional comment

The coefficients for the expansion match the numbers in a row of Pascal's triangle. The row beginning with 1, n will have the coefficients for the expansion to the n-th power.

Answer:

it should be the 2nd one... 1625.

Answer:

1625 feet

Step-by-step explanation:

if 1 inch = 250 feet.

you must multiply 6.5 by 250.

250 x 6.5 = 1625

Answer:

1.66 pounds

Step-by-step explanation:

4.98 dollars divided by 3 pounds

Answer: i just need the points, sorry

Step-by-step explanation:

Answer:

(3)

Step-by-step explanation:

Answer:

You would have to have guess a number larger than 31500 and smaller than 38500

Step-by-step explanation:

The answer will look something like

35000 +/- 10% (35000)

What that means is that the attendance would be smaller than 35000 or larger than 35000.

10% * 35000 = 10/100 * 35000 = 350000 / 100 = 3500

So you would have to estimate

35000 - 3500 ≤ attendance ≤35000 + 3500

31500 ≤ attendance ≤ 38500

Answer:0.5

Step-by-step explanation:

1/2 devide by 3 = 0.16666666666

0.16666666666 times 3 = 0.5

Answer:

2. 20

3. 9

4. 24

2.4(7-2)^1=4(5)=20

3.2(8-1)^0 + 7= 2×1 + 7= 2+7=9

4. 3×4 + 12= 12 + 12= 24

Answer:

SA=390

Step-by-step explanation:

9*14=126

126+126=252

14*3=42

42+42=84

9*3=27

27+27=54

252+84+54=390

Answer:

Step-by-step explanation:

Find the m∠B:

a)

Find AC using law of cosines:

b)

Find m∠A using law of sines:

The bearing of C from A:

c)

Let the required distance is x:

Answer:

a) 16.4 km

b) 79 deegres.

c.10 km

Step-by-step explanation:

Find the m<B:

-m<B= 360 deegres -310 deegres) +50 deegres=100 deegres.

a)

Find AC using law of counsines:

-AC=( 8 to the second power + 13 to the second power - 28×13× cos 100 deegres.

16.4 km

Answer:

Yes. In order for a shape to be qualified as a parallelogram It has to have 4 main properties. Opposite sides are parallel. Opposite sides have to be congruent. The opposite angles are congruent. Consecutive angles are supplementary (adds to 180-degrees). A rectangle qualifies all of these properties for a parallelogram. Opposite sides are parallel which works for a rectangle since they never intersects with the oppposit line. Opposite sides are congruent or equal which is also true becuase when looking at any 2 opposite sides of a rectangle, its always gonna be equal. Opposite angles are congurent which is also true because their all 90 degrees all are equal. And finally consecutive angles add up to 180. Soncsuive int his case basically means the angle next to that angle but we don’t have to worry about that since all angles of a rectangle are 90 and 90+90=180 so it also DOES qualify for a parallelogram.

Answer:

Step-by-step explanation:

It might be A or D I’m not for sure which one it is.

Answer:

3 ft/s

Step-by-step explanation:

The rate or speed of the remote control car, v = distance/time

Now, the distance travelled by the remote control car = 4/5 of a foot = 4/5 × 1 ft = 4/5 ft and the time it takes to cover this distance is 4/15 of a second = 4/15 × 1 s = 4/15 s.

So, v = distance/time

= 4/5 ft ÷ 4/15 s

= 4/5 ft × 15/4 s

= 3 ft/s

Answer:

$250 and 50 mugs

Step-by-step explanation:

690-440 then 250÷5 if that helps

Answer:45,000,000,000 melons

Step-by-step explanation:

90,000,000,000-45,000,000,000=45,000,000,000

Answer:

Question 1= EFC and GFH

Question 2=60

I'm not sure but I think its right!

Pls let me know

Also pls mark me brailiest

Answer:

x = 73 °

Step-by-step explanation:

A pentagon has a collective degree of 540

So to find x, you have to set up an equation:

x + 127 + 112 + 108 + 120 = 540

To solve:

Combine like terms

x + 467 = 540

Subtract 467 on both sides:

x = 540 - 467

x = 73

Answer:

4

Step-by-step explanation:

Hope this can help you <33

GL!

Answer:

75.4 in. b. 7540 in. Find the diameter and radius of a circle with the.

Step-by-step explanation:

hope this helped !!!!!!

4x + 5y = -2

-5 -5

4x = -5y - 2

4x/4 = -5y -2/ 4

x = -5/4 y + -1/2

Answer:

17,280

formula is length times width times hight then you get the volume

Answer:

#4 angle 1 = 154 degrees

#4 angle 2 = 26 degrees

#5 angle 1 = 97 degrees

#5 angle 2 = 82 degrees

#5 angle 3 = 83 degrees

Step-by-step explanation:

The image displays which angles are the same on line equations like these using color coding.

In order to translate between the green angle and the pink angle you subtract it from 180.

Equation: 180 - angle type 1 = angle type 2

Ex: 180 - 154 = 26

Answer:

2

Step-by-step explanation:

Answer:

-2,3

Step-by-step explanation:

Answer:

I don't know I am a babysitter too :)

Answer:

The first and the second equation is flipped... meaning you have to switch their places

Step-by-step explanation:

I think I did this before so good luck...

Answer:

a

Step-by-step explanation:

Answer:

Step-by-step explanation:

base = 7 units

height = 12 unit

Area of triangle = [tex]\frac{1}{2}*base * height\\[/tex]

                          [tex]= \frac{1}{2}*12*7\\\\=6 * 7 \\= 42 unit^{2}[/tex]