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Annette [7]
3 years ago
12

Factorise the following: 9x^2+3x^3

Mathematics
1 answer:
Juliette [100K]3 years ago
8 0

Answer:

3(x+3)x²

Step-by-step explanation:

Factor out 3

3(x²+x³)

Factor out x²

x²(3+x)

Rewrite the complete factored expression

3x²(x+3)

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Harry's mother makes cakes for a local restaurant.She buys flour and sugar in large amounts.She has 157.86 pound of flour and 82
ElenaW [278]

Answer:

<em>The flour will last for about 11 days.</em>

Step-by-step explanation:

Suppose, the flour will last for  x days.

She uses 15 pounds of flour each day. So, <u>the total amount of flour used in x days</u> = 15x pounds.

Given that, she has 157.86 pound of flour. So, the equation will be......

15x= 157.86\\ \\ x= \frac{157.86}{15}=10.524 \approx 11

Thus, the flour will last for about 11 days.

4 0
3 years ago
Write down the multiples of each number vertically and horizontally
Rashid [163]

Answer:

1

6

4

10

14

18

8

16

12

4

6

8

10

12

14

16

18

26

Step-by-step explanation:

8 0
3 years ago
Let a = x2 + 4Rewrite the following equation in terms of a and set it equal to zero (x2+4)2+32=12x2+48
tester [92]

Answer:

x^4 - 4x^2 = 0

^.^

- Amanda

4 0
3 years ago
Olympic volleyball player Bev Oden averaged 3.42 "kills" (spikes that end a rally) per game. Predict her number of kills in a 5
damaskus [11]

Answer: 17.1

Step-by-step explanation:

If she averages 3.42 kills per game, she should average that for each of the 5 games. You need to multiply 3.42 times 5 for the total of 5 games.

3.42 x 5 = 17,1

7 0
4 years ago
50 POINTS!!!!!!!!!!!!!!!
hram777 [196]

Answer:

10.125

Step-by-step explanation:

Given the data :

28,45,12,34,36,45,19,20

The mean absolute deviation of the data is :

Σ|x - mean| / n

n = number of values = 8

Mean = Σx / n = 239 / 8

Mean = 29.875

Take the sum of the absolute value if the difference between each data value and the mean, then divide by the data size

Using a mean absolute deviation calculator ;

Mean absolute deviation = Σ|x - mean| / n = 10.125

6 0
3 years ago
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