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Afina-wow [57]
3 years ago
14

Please help me with the answer ASAP

Mathematics
1 answer:
Gnom [1K]3 years ago
6 0

Answer:

105/5 i believe

Step-by-step explanation:

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Solve and check <br> please please help i will mark u as a brill it is easy please
Lesechka [4]

Answer:

B=25

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
2 3/5 ×5/6 = what does it equel
wolverine [178]
Your answer is 2 and 1/6

6 0
3 years ago
The sum of reciprocals of rehman’s ages 3 years ago and 5 years from now is 1/3. Find his present age
Afina-wow [57]

Answer:

His age is 7 years.

Step-by-step explanation:

Let Rehman's  present age be x years.

1 / (x - 3) + 1 /(x + 5) = 1/3

Multiply through by the LCD 3(x - 3)(x + 5):

3(x + 5) + 3(x - 3) = (x + 5)(x - 3)

3x + 15 + 3x - 9 = x^2 + 2x - 15

x^2 + 2x - 6x - 30 + 9 = 0

x^2 - 4x - 21 = 0

(x - 7)(x + 3) = 0

x = 7  (answer).

6 0
3 years ago
Help me with this please!
zepelin [54]

Answer: -x - 3√x + 4

(1 - √x)(√x + 4)

= √x + 4 - √x.√x - 4√x

= -x - 3√x + 4

Step-by-step explanation:

3 0
2 years ago
I need help with this duhhh
liubo4ka [24]

Answer:

Step-by-step explanation:

4. (6^10)^-7 is when the exponents should be multiplied

   answer is B

5. (7^3)^-2 = (7^-6)

     1/7^6 = 1/(7x7x7x7x7x7)

answer is A

2. 11^-4/11^8= 1/11^(8+4) = 1/11^12

   answer is A

3. (2^5/3^2)^4= 2^20/3^8

   answer is A

4 0
3 years ago
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