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3 years ago

I need answer to question

Mathematics

1 answer:

Mice21 [21]3 years ago

7 0

Answer:

5620.892145

first you just factor the problem then subtract and then get the answer.

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Factorize: -4x squared - 12x

Triss [41]

Answer:

-4x(x +3)

Step-by-step explanation:

Factor out common factors from both terms.

Divide -4 & x from both terms.

(-4x²)/(-4x) = x

(-12x)/(-4x) = 3

x + 3 is the remainder, so keep together.

-4x(x + 3) is your answer

6 0

3 years ago

Please help fast!! thanks

LuckyWell [14K]

D i think hopfully im right

6 0

3 years ago

Calculate the total surface area and the volume of a cone of base diameter 9cm and slant height of 12cm

Paul [167]

Answer:

T.S.A = 233.29 cm²

volume of the cone = 235.84 cm³

Step-by-step explanation:

Given;

diameter of the cone, d = 9 cm

radius of the cone, r = 4.5 cm

slant height of the cone, l = 12 cm

The total surface of the cone is calculated as;

T.S.A = πr² + πrl

T.S.A = πr(r + l)

T.S.A = 3.142 x 4.5(4.5 + 12)

T.S.A = 233.29 cm²

The volume of the cone is calculated as;

$V = \frac{1}{3} \pi r^2h$

Where;

h is height of the cone

h² = 12² - 4.5²

h² = 123.75

h = √123.75

h = 11.12 cm

$V = \frac{1}{3} \pi \times (4.5)^2 \times 11.12\\\\V = 235.84 \ cm^3$

7 0

3 years ago

How do you distinguish between multiples and factors of a number, and justify your evaluation of the LCM & GCF of a set of n

Reil [10]

Answer:

Look to the explanation

Step-by-step explanation:

- Multiples of a number are the numbers after multiplying the number

by an integer

- Ex: The multiples of 2 are 2 , 4 , 6 , 8 , .......... because 2 × 1 = 2 ,

2 × 4 = 4 , 2 × 3 = 6 and 2 × 4 = 8

- Factors of a number are the number multiplied together to get the

number

- Ex: The factors of 6 are 1 , 2 , 3 , 6 because 1 × 6 = 6 and 2 × 3 = 6

- Lowest common multiple of the set of numbers (LCM) is the

smallest number divisible by these numbers

- Ex: The lowest common multiple of 2 and 3 is 6 because 6 is divisible

by 2 and 3 and there is no number before it divisible by both

- Greatest common factor of the set of numbers (GCF) is the highest

common factor of these numbers

- Ex: The greatest common factor of 12 and 18 is 6 because

→ The factors of 12 are 1 , 2 , 3, 4, 6, 12

→ The factors of 18 are 1 , 2 , 3 , 6 , 9 , 18

→ The greatest common factor on both numbers is 6

3 0

4 years ago

11) A recipe for cookies calls

Tom [10]

Answer:

12-x cups

Step-by-step explanation:

A recipe of cookies calls for 12 cups of sugar if amy has put in x cups of sugar then she needs to put 12-x more cups of sugar.

x=1,2,3,..........,12

3 0

3 years ago