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Ghella [55]
3 years ago
12

Can someone help me with the question in the image. if correct i will mark as brainliest

Mathematics
1 answer:
Andrews [41]3 years ago
5 0

Answer: i think its B

Step-by-step explanation:

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15 points for someone who can answer & explain this to me thanks
iris [78.8K]

Answer:

see explanation

Step-by-step explanation:

Given

\frac{9}{a^2+9a+20} , \frac{7a}{a^2+11a+28}

Factor the denominators of both fractions

\frac{9}{(a+4)(a+5)} , \frac{7a}{(a+4)(a+7)}

The lowest common denominator of both fractions is (a + 4)(a + 5)(a + 7)

Multiply numerator/denominator of first fraction by (a + 7)

Multiply numerator/denominator of second fraction by (a + 5 )

\frac{9(a+7)}{(a+4)(a+5)(a+7)} , \frac{7a(a+5)}{(a+4)(a+5)(a+7)} , then

\frac{9a+63}{(a+4)(a+5)(a+7)} , \frac{7a^2+35a}{(a+4)(a+5)(a+7)}

8 0
3 years ago
Solve the inequality for x. Show each step of the solution. 12 x>9(2x-3)-15 (I'm having trouble with this one spefically)
PSYCHO15rus [73]
Download photomath and it will give u step by step instructions
6 0
3 years ago
Read 2 more answers
How many times does blood culirculate in an hour
wariber [46]
Your blood circulates a total of 128 times a hour, or 3 times a minute.
-hope this helps
@FauxGeoDuck
6 0
4 years ago
3.
sergeinik [125]

Answer:

14.11

Step-by-step explanation:

.83*16.5=14.11

8 0
3 years ago
Read 2 more answers
Your friend has $100 when he goes to the fair. He spends $10 to enter the fair and $20 on food. Rides at the fair cost $2.00 per
zysi [14]
You could use the function: 

f(x)=30+2x
100=30+2x 

In which lets say he rode 3 rides. Plug in 3 for x.

100=30+2(3)

Then Multiply 
100=30+6

Then combine 30 and 6 to get 36.
Then you can subtract 36 from 100 to get 
$64 left over. 
5 0
3 years ago
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