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tatiyna
3 years ago
5

I don't get how to solve it

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
8 0
I don't know for a fact but I think k=1.125
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Factor the polynomial. <br> 25 – x²
katovenus [111]

Answer:

(5 + x)(5 - x)

Step-by-step explanation:

Hope this helps!

7 0
3 years ago
Read 2 more answers
[18].Simplify (TTE): x(2x+y+5) - 2(x²+xy+5) + y(x + y) <br>​
Dovator [93]

Answer:

x(2x+y+5) - 2(x\²+xy+5) + y(x + y) = 5x -10  + y\²

Step-by-step explanation:

Given

x(2x+y+5) - 2(x\²+xy+5) + y(x + y)

Required

Simplify

We have:

x(2x+y+5) - 2(x\²+xy+5) + y(x + y)

Open brackets

x(2x+y+5) - 2(x\²+xy+5) + y(x + y) = 2x\²+xy+5x - 2x\²-2xy-10 + xy + y\²

Collect like terms

x(2x+y+5) - 2(x\²+xy+5) + y(x + y) = 2x\²- 2x\²+xy-2xy+ xy+5x -10  + y\²

x(2x+y+5) - 2(x\²+xy+5) + y(x + y) = 5x -10  + y\²

4 0
3 years ago
A pair of dice are rolled. What is the probability of rolling 4 or greater?
skelet666 [1.2K]
Answer: option D: 11/12

Explanation:

1) The sample space is formed by 36 pairs: 6×6 = 36.

2) Roolling 4 or more is the same that not rolling 3 or less

3) Rolling 3 or less are (1,1), (1,2), and (2,1). Those are 3 outcomes out of 36.

4) Therefore, not rolling 3 or less (the same that rolling 4 or more) has 36 - 3 = 33 outcomes out of 36.

5) The probability of 33 out of 36 is 33/36

6) Simplify the fraction 33/36 = 11/12

And that is the answer.


6 0
4 years ago
A square has side length (7x-2) in. What is the area of the square?
Elza [17]
Because the square has similar lengths, the equation would be
(7x-2)(7x-2)
We can use FOIL to solve this:
The area is 49x^2 - 28x + 4 in^2.
4 0
3 years ago
What is the value of y?
Ket [755]

I would guess it would be letter B. Let me know if I’m right.

8 0
3 years ago
Read 2 more answers
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