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emmainna [20.7K]
3 years ago
8

Find all rational zeros and factor f(x) for x^3 + 2x^2 -45x -126

Mathematics
1 answer:
alexdok [17]3 years ago
6 0
The rational root are x= 7,-3,-6
You can find them by substituting y for 0
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If the Alpha company is 79% staffed and the Beta company is only 62% staffed, what is the relative change of staffing from the A
sweet [91]

Answer:

27.41%

Step-by-step explanation:

Data provided in the question

The staffed of Alpha company = 79%

The staffed of Beta company = 62%

Based on the above information, the relative change of staffing from Alpha to beta company is

As we know that

\bold {\ Relative \ change = \frac{\alpha- \beta }{\beta }}

= \frac{(79 -62)}{62} \% \\\\= \frac{17}{62} \times 100\\\\=0.2741 \times 100\\\\=27.41\ \%

By applying the above formula we can get the relative change and the same is to be applied so that the correct percentage could come

5 0
3 years ago
How many solutions does x²+3x=3 have?
aev [14]

Answer:

2 (real) solutions.

Step-by-step explanation:

A quadratic always has two solutions, whether they are real or complex.

Sometimes the solution is complex, involving complex numbers (2 complex), sometimes they are real and distinct (2 real), and sometimes they are real and coincident (still two real, but they are the same).

In the case of

x^2+3x = 3, or

x² + 3x -3 = 0

we apply the quadratic formula to get

x =  (-3 +/- sqrt(3^2+4(1)(3))/2

to give the two solutions

{(sqrt(21)-3)/2, -(sqrt(21)+3)/2,}

both of which are real.

4 0
2 years ago
What does 6(-2.1k - 2) + (7k + 5) equal​
ikadub [295]

Answer:

Step-by-step explanation:

6(-2.1k-2)+(7k+5)

-12.6k-12+7k+5

-5.6k-7

5 0
3 years ago
Explain in your own words why (x + y)2 ≠ x2 + y2. Provide a numerical example to illustrate.
bekas [8.4K]
Im not sure if you wrote this wrong because (x+y)2 does equal x2+y2. An example would be if x equals 3 and y equals 4 (3+4)2=(3)2+(4)2 (7)2=6+8 14=14.
6 0
3 years ago
Sebastian and his two brothers read and equal amount each week very for a combined total of 135 minutes each week, very the same
ipn [44]

Answer:

270 minutes per boy.

Step-by-step explanation:

45 mins each week

multiplies by 6

3 0
3 years ago
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