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Gennadij [26K]
3 years ago
14

Expand and simplify the following polynomial. be sure to write it in standard form. -6y(3y^2-2y-7)

Mathematics
1 answer:
nikitadnepr [17]3 years ago
8 0

Answer:

−18y^3 + 12y^2 + 42y

Step-by-step explanation:

Hope this helps

You might be interested in
A circle has a radius of 3. An arc in this circle has a central angle of 20°
Alla [95]

Answer:

The length of the arc is 1.0467

Step-by-step explanation:

First of all to solve this problem we need to use the circumferenc formula of a circle:

c = circumference

r = radius = 3

π = 3.14

c = 2π * r

we replace with the known values

c = 2 * 3.14 * 3

c = 18.84

The length of the circumference is 18.84

Now we have to divide the 20° by the 360​​° that a circle has, to know what part of the circle it represents

20° / 360° = 1/18

Now we multiply this fraction by the circumference and obtain the length of the arc

1/18 * 18.84 = 1.0467

The length of the arc is 1.0467

4 0
2 years ago
How much water do you need to add to make each concentration?<br> 1% sugar syrup using 12 g sugar
yulyashka [42]

Answer:

1188 grams of water

Step-by-step explanation:

x is the grams of water

so total is 12+x grams

sugar/total is 12/12+x

and 1% ratio is 12/12+x=1/100

so x would be 1188 grams of water.

6 0
2 years ago
What is the area, in square centimeters, of the figure below? question 2 of 10
boyakko [2]

Answer:

area = 1/2× base×height

<u>1</u>×5.8×2.4

2

<u>1</u><u>3</u><u>.</u><u>9</u><u>2</u>

2

=6.96cm²

7 0
3 years ago
Brand X Pizza is having a special coupon offer. If you buy two large pizzas, you get $2.00 off the price. A large pizza normally
Olegator [25]

Very handy question to know the answer to. I know of no place on the planet that does not have a tax of some sort.

The tax only applies when money changes hands. It does not apply to any discounts

So if you take the deal, the cost is

Cost of 2 pizzas = normal price - the discount.

Cost of 2 pizzas = 2*10.50 - 2.00

Cost of 2 pizzas = 21 - 2

Cost of 2 pizzas = 19.00 dollars.

Not you add on the sales tax. You can do this one of two ways, the long way or the short way.

<u>Long way</u>

Find the sales tax

Tax = % * cost

Tax = (7.5/100) * 19

Tax = 1.425 don't round yet.

Total Cost = purchase + tax

Total Cost = 19.00 + 1.425 = 20.425 Now round. This is a real problem. It depends on what you have been told to do about rounding when 5 is the last digit. I round up. So my answer would be 20.43 <<<<< Answer.

<u>Short Way</u>

Cost = (Price - discount)*(1 + %/100)

Cost = (21 - 2)*(1+ 7.5/100)

Cost = 19 * (1.075)

Cost = 20.425 = 20.43

6 0
3 years ago
The student council orders 12 sandwhiches for the school dance. each sandwich is 6 feet long cut into sections that are 4 inches
Setler [38]

The school council will have 216 small sandwiches.

Step-by-step explanation:

Sandwiches ordered = 12

Length of one sandwich = 6 feet

1 foot = 12 inch

6 feet = 12*6 = 72 inches

Length of one sandwich in inches = 72 inches

As one small sandwich is 4 inches,

Number of small sandwiches in one sandwich = \frac{72}{4}=18

One sandwich = 18 small sandwiches

12 sandwiches = 18*12 = 216 small sandwiches

The school council will have 216 small sandwiches.

Keywords: multiplication, division

Learn more about multiplication at:

  • brainly.com/question/10710410
  • brainly.com/question/10717746

#LearnwithBrainly

3 0
3 years ago
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