(3x ^3 + 4x^2)+(3x3-4x^2-9x)=

Mathematics

1 answer:

strojnjashka [21]3 years ago

6 0

Answer:=6x3−9c

Step-by-step explanation:

3x3+4x2+3x3−4x2−9c

=3x3+4x2+3x3+−4x2+−9c

Combine Like Terms:

=3x3+4x2+3x3+−4x2+−9c

=(3x3+3x3)+(4x2+−4x2)+(−9c)

=6x3+−9c

You might be interested in

WILL GIVE BRAINLEIST : A party hat is in the shape of a cone. What is the volume of the hat in cubic centimeters?

Brut [27]

36xpi or 113.1 cm^3
hope that helped!! :)

7 0

3 years ago

Can someone help me and explain step by step

Shkiper50 [21]

Answer: 5) r = 5, 8th term = -78,125

6) r = 5, 8th term = -312,500

7) r = 5, {1, 5, 25, 125, 625}

8) r = 5, {-4, -20, -100, -500, -2500}

<u>Step-by-step explanation:</u>

The explicit formula of a geometric sequence is: $a_n=a_1\cdot r^{n-1}$ , where;

n is the number of the term
a₁ is the first term
r is the common ratio

$5)\ a_n=-5^{n-1}\\.\qquad =-1\cdot 5^{n-1}\quad \rightarrow \quad a_1=-1\ and\ r=5\\\\a_8=-5^{8-1}\\.\quad =-5^7\\.\quad =-78,125\\\\\\6)\ a_n=-4\cdot 5^{n-1}\quad \rightarrow \quad a_1=-4\ and\ r=5\\\\a_8=-4\cdot 5^{8-1}\\.\quad =-4\cdot 78,125\\.\quad =-312,500$

$7)\ a_1=1\ and\ r=5\\.\quad a_2=1\cdot 5=\boxed{5}\\.\quad a_3=5\cdot 5=\boxed{25}\\.\quad a_4=25\cdot 5=\boxed{125}\\.\quad a_5=125\cdot 5=\boxed{625}\\\\\\\\8)\ a_1=-4\ and\ r=5\\.\quad a_2=-4\cdot 5=\boxed{-20}\\.\quad a_3=-20\cdot 5=\boxed{-100}\\.\quad a_4=-100\cdot 5=\boxed{-500}\\.\quad a_5=-500\cdot 5=\boxed{-2500}\\\\\\$

8 0

2 years ago

A pool measures 100 meters by 100 meters. A toddler, inside the pool, throws a ball and it lands 60 centimeters from one edge of

ratelena [41]

We need to covert 100 m to cm
1m=100 cm
100m=10000cm
so if he threw it and it landed 60 from on end, the pool is still same width/legnth so
it depends on whether it landed in the pool 60 cm away from edge or outside of the pool, 60 cm from edge
if in go to AAAAAAAAAA
if out got to BBBBBBB

AAAAAAAAAAAAAAAA
60+distance to other edge=width of pool=10000
60+d=10,000
subtract 60
9940 cm

BBBBBBBBBB
60+width=distance
60+10,000
10,060 cm

if it landed IN the pool 60 cm away from edge, answer is 9940cm
if it landed OUTSIDE of the pool, 60 cm from edge, answer is 10,060 cm

4 0

2 years ago

Read 2 more answers

Drag each tile to the correct location on the table. Match each sentence to the term it’s describing.

Butoxors [25]

Answer:

see below

Step-by-step explanation:

The premium is your cost for the insurance, paid to the insurance company.

The deductible is your cost for a claim, paid to settle your liability.

The limit is the maximum the insurance will pay for a given incident.