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nasty-shy [4]
4 years ago
13

Someone please help me!!!!!

Mathematics
1 answer:
Serggg [28]4 years ago
8 0
(3a-7)^2= (3a)^2 - 2*3a*7 + 7^2= 9a^2- 42a+ 49
You might be interested in
Answer fast plz sjsjzjz​
Finger [1]

Answer:

104

Step-by-step explanation:

Just separate the whole thing into two shapes. Multiply the first shape: 12 x 7 = 84

Multiply the second shape: 5 x 4 = 20

7 0
3 years ago
Read 2 more answers
Rachel, Mario and Sanjit share some money in the ratios 4:3:9
Hoochie [10]

Answer:

£160.

Step-by-step explanation:

Mario receives 3 / (4+3+9) = 3/16 of the money.

So by proportion the total amount of money

=  96 * 16/3 = £512

So Rachel receives  4/16 = 1/4

= 512 / 4

= £128.

- and Sanjit receives 9/16

= 512 * 9/16

= £288

The difference is 288 - 128 = £160.

8 0
3 years ago
If you start with Malvin’s age, take half of it, increase that result by 5, then divide by 3, and finally double that, you get 8
Kisachek [45]

Answer:

24 years old

Step-by-step explanation:

Let Malvin's age be x.

  • x / 2
  • x / 2 + 5 = 5x / 10  [ By taking the L.C.M.]
  • ( 5x / 10 ) * ( 1 / 3 ) = 5x / 30   [ Multiply with the reciprocal of 3 ]
  • ( 5x / 30 ) * 2 = 5x / 15

Now let's solve the equation,

5x / 15 = 8

       5x = 8 * 15

       5x = 120

         x = 120 / 5

         x = 24

Therefore, Malvin is 24 years old.

Hope yo liked the answer!!

If you found it helpful, please mark it as the Brainliest!!

3 0
3 years ago
Question Help
Sergeeva-Olga [200]

Answer:

if u divide it then slop  it u will get your answer

3 0
3 years ago
Larry said 5% of 300 us 30 <br> True or False
Digiron [165]

Answer:

False

Step-by-step explanation:

5% of 300 = 15

Carlos

Virtuoso Helper

7 0
3 years ago
Read 2 more answers
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