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Stella [2.4K]
3 years ago
5

Please help me complete 8 and 9

Mathematics
1 answer:
Tresset [83]3 years ago
5 0
8: B(-4,3)
9: B -5 2/3
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A rectangle has an area of x^3 + 5x^2 + 5x – 2 square meters and a width of x + 2 meters. Find its length.
musickatia [10]

Answer: x^2 + 3x - 1.

Step-by-step explanation: We need to divide x^3 + 5x^2 +5x-2 by x+2. This is dividing polynomials. Divide each number by x and multiply the quotient by 2 and subtract the answer.

5 0
3 years ago
On monday five students make up a rumor. on each of the next two days, every student that knows the rumor tells five other stude
Travka [436]

Answer: 5¹ + 5² + 5³, 130 students

<u>Step-by-step explanation:</u>

  Monday:         1          1           1           1            1        =      5   ⇒ 5¹

+ Tuesday:      1(5)     1(5)       1(5)       1(5)         1(5)     = + 25   ⇒ 5²

+ Wednesday:5(5)    5(5)      5(5)      5(5)        5(5)     = <u>+125   </u>⇒ 5³

                                                                                          130

Extra Credit:   How many students will know the rumor on Thursday?            5¹ + 5² + 5³ + 5⁴


8 0
3 years ago
Pls answer my question please correctly
WINSTONCH [101]

Answer:

13/10 5/3 40-78 C A

Step-by-step explanation:

3 0
3 years ago
Find the nonpermissible replacement for y in this expression. 3/-5y
S_A_V [24]
We have that
<span>(3/-5y)

we know that
</span><span>zero in the denominator is NOT allowed
</span><span>y = 0 is the non permissible replacement for y in this expression </span>
the domain of this <span>expression is all y value real numbers except the value of y=0

domain is (-</span>∞,0) ∩ (0,∞)

the answer is 
y=0
6 0
3 years ago
Read 2 more answers
(12x – 16):<br> (1x + 25)
allsm [11]

Answer:

-0.00961

Step-by-step explanation:

3 0
3 years ago
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