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Licemer1 [7]
3 years ago
6

Find the Greatest Common Factor of 3a^2+9

Mathematics
2 answers:
AlladinOne [14]3 years ago
7 0

Answer:

3

Step-by-step explanation:

We are given that an expression

3a^2+9

We have to find the greatest common factor of 3a^2+9

In order to find the GCF we will find the factor of each term

3a^2=3\times a\times a

9=3\times 3

The common factor in both terms is 3.

Hence, greatest common factor of 3a^2+9 is 3.

Answer: 3

Nataly [62]3 years ago
6 0
The GCF of 3a^2 + 9 is 3.

Factor for 3a^2 + 9
3a^2 + 9 = 3(a2 + 3)

Answer:<span>3<span>(<span><span>a2</span>+3</span><span>)</span></span></span>
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Please help me answer this question.
GaryK [48]

Answer:

The answers are in the attachment

7 0
2 years ago
A tortoise makes a journey in two parts; it can either walk at 4cm/s or crawl at 3cm/s. If the tottoise walks the first part and
Ugo [173]

Answer:

120

240

Step-by-step explanation:

We call the length of first part x

Length of second part = y

In the first scenario, it took the tortoise 110 sec to walk the first part and crawl the second.

So,

We have this equation,

x/4 + y/3 = 110

We take the LCM

(3x + 4y)/12 = 110

When we cross multiply

3x + 4y = 110x12

3x + 4y = 1320 ----- equation 1

For scenario 2

x/3 + y/4 = 100

When we take the LCM

(4x + 3y)/12 = 100

We cross multiply

4x + 3y = 100x12

4x + 3y = 1200 ------ equation 2

We now have two equations and we will solve for x and y using simultaneous linear equation.

3x + 4y = 1320 ----- 1

4x + 3y = 1200 ----- 2

We subtract equation 2 from 1 to get

- x + y = 120

We make y subject

y = x + 120 ----- 3

We put the value of y in equation 3 into equation 1

3x + 4(x + 120) = 1320

3x + 4x + 480 = 1320

7x + 480 = 1320

7x = 1320-480

7x = 840

We divide through by 7

x = 840/7

x = 120

We put value of x in equation 3

y = x + 120

y = 120 + 120

y = 240

120 and 240 are the lengths of the 2 parts of the journey.

Thanks

5 0
3 years ago
What temperature is 15 degrees lower than 7 degrees celsius
VikaD [51]
7-15= -8
so -8 degrees celsius

8 0
3 years ago
0x + 8 = 5x - 3 What is X?
Gennadij [26K]

Answer:

x= 11/5 OR 2.2

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is 3 5/6 - 7 1/2
-Dominant- [34]
<span>-3.66666666667 is da answer

</span>
5 0
3 years ago
Read 2 more answers
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