30 times what equals 1280

Answer:

20 ways

Step-by-step explanation:

6C3 = 6!/(3! * (6-3)!)

       = (6*5*4*3*2*1)/(3*2*1*(3)!)

       = (6*5*4) / (3 * 2 * 1)

       = (6*5*4)/6

       = 5 *4

       = 20 ways

Final answer:

The number of ways to pick 3 items not to take out of a total of 6 is 20.

Explanation:

To find the number of ways to pick 3 items not to take out of a total of 6, we can use the combination formula. The formula for combinations is given by C(n, r) = n! / (r!(n-r)!), where n is the total number of items and r is the number of items to be chosen. In this case, n = 6 and r = 3. Plugging in these values, we get:

C(6, 3) = 6! / (3!(6-3)!) = 6! / (3!3!) = (6 * 5 * 4) / (3 * 2 * 1) = 20.

So, there are 20 different ways to pick 3 items not to take out of a total of 6.

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Answer:

128.86 square centimetres

Step-by-step explanation:

I will assume that the shaded region is the area in between the circle and the rectangle.

All we have to do is find the area of the circle and subtract it from the area of the rectangle.

Area of a circle is given as:

where r = radius

The radius of the circle is 1 cm, so, the area of the circle is therefore:

= 3.14 square centimetres

The area of a rectangle is given as:

A = L * B

The dimensions of the rectangle are 11 cm by 12 cm. The area of the rectangle is:

A = 11 * 12 = 132 square centimetres

The area of the shaded part is therefore:

A = 132 - 3.14 = 128.86 square centimetres

You have to save $439.50 each month to reach your goal if you cover closingcosts and the down payment.

What is the down payment?

A down payment is a sum of money that a buyer pays in the early stages of purchasing an expensive good or service.

You want to buy a house in 9 years.

The estimated cost is $175,800.00. You want to make a 20% down payment and closing costs are 7%.

The amount for the down payment:

175,800 x 20% = 35,160

The closing cost of house is;

175,800 x 7% = 12,306

Amount to save: 35,160 + 12,306 = 47,466

The monthlysavings is;

9 years x 12 months = 108 months

47,466 / 108 = 439.50 savings per month.

Hence, you have to save $439.50 each month to reach your goal if you cover closingcosts and the down payment.

Learn more about down payment here;

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