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jeka57 [31]
3 years ago
14

Someone please help me on this! ASAP please!! 25p

Mathematics
1 answer:
Vinil7 [7]3 years ago
7 0

Answer:

i think b

Step-by-step explanation:

yeah i think . ssnsnfhdbdhenebsjenbd

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Simply the rational expression.state any restrictions on the variable. k2-k-2/k2-4k-5
hjlf

We are given

\frac{k^2-k-2}{k^2-4k-5}

Firstly, we will factor numerator and denominator

\frac{k^2-k-2}{k^2-4k-5}=\frac{(k-2)(k+1)}{(k-5)(k+1)}

Restrictions:

we know that denominator can not be zero

so, we can set denominator =0

and solve for k to get restrictions

(k-5)(k+1)=0

k=-1,k=5

Simplification:

\frac{k^2-k-2}{k^2-4k-5}=\frac{(k-2)(k+1)}{(k-5)(k+1)}

we can see that k+1 gets cancelled

so, we get

\frac{k^2-k-2}{k^2-4k-5}=\frac{(k-2)}{(k-5)}..........Answer


5 0
3 years ago
Solve equation. -15 + (-8)=
Daniel [21]

Answer:

The answer is - 23

Step-by-step explanation:

- 15 + (-8) =

- <u>23</u>

8 0
3 years ago
Read 2 more answers
Write 7.75 x 10^-3 in standard notation​
Natasha_Volkova [10]

Answer:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

7.75 × 10^−3

4 0
4 years ago
Read 2 more answers
The cone shown has a volume of 12π in3. Find the volume of a cylinder with the same base and height as the cone.
scoundrel [369]
I think the answer is B
5 0
3 years ago
A right rectangular prism is 101/2 m wide, 15 1/2 m long and 3 m tall
gizmo_the_mogwai [7]

Answer:

2348.25 m or 2348 1/4

Step-by-step explanation:

101/2 x 15 1/2 x 3 = 2348.25

8 0
3 years ago
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