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2 years ago

Find the domain of the function f(x)=2x^3+6x^2

Mathematics

1 answer:

dybincka [34]2 years ago

6 0

All real numbers for the domain

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What is the value of x in the figure? (2x+15)°

Deffense [45]

Answer:

(2x + 15)° = 180°

2x = 180 - 15

2x = 165

x = 165/2

x = 82.5

6 0

2 years ago

Find the least number when divided by 75,125 and 225 Leaves a remainder 6 in each case.

exis [7]

Answer:

676,131

Step-by-step explanation:

L.C.M of 75,125 and 225,

=>676,125

Leaves a remainder 6 means,

=>676,125 + 6

=>676,131

That means,

When you divide 676,131 by 75,125 or 225,

You get remainder 6 .

That is why we add 6 to the L.C.M

6 0

2 years ago

Define a sequence by a1=3 and an=3an−1. Find the first four terms of the sequence. Give a simplified integer answer.

aalyn [17]

Answer:

The first four terms are 3,9,27,81

Step-by-step explanation:

Given first term of sequence is $a_{1} = 3$

Given 'n' t h term is $a_{n} = 3 a_{n-1}$ .............(1)

here we put n = 2 in equation (1)

$a_{2} = 3a_{2-1}$

$a_{2} = 3 a_{1}$ ..............2

put $a_{1} = 3$ in equation (2)

$a_{2} = 3(3)$

$a_{2} = 9$

put n=3 in equation (1)

$a_{3} = 3 a_{3-1}$

$a_{3} = 3a_{2}$

$a_{3} = 3 (9) = 27$

put n= 4 in equation (1)

$a_{4} = 3 a_{4-1}$

$a_{4} = 3 a_{3}$

$a_{4} = 3(27) = 81$

The first four terms of the sequence is

3 , 9, 27 , 81 ....this is geometric sequence

a =3 and ratio term is r =3

6 0

2 years ago

Help and explain I can't get this wrong

Alexxandr [17]

I'm assuming we're solving for x.

One property of a straight line is that the angles that make a straight line have to add up to 180 degrees.

Given this information, we know that 4x + 5 + 41 = 180
4x + 46 = 180
4x = 134

x = 134/4 = 33.5

4 0

3 years ago

What doesThe mathematical expression 2 ∈ V means

sergiy2304 [10]

It means 2 is an element of set V

7 0

3 years ago