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mote1985 [20]
3 years ago
10

Use the grouping method to factor the polynomial below completely. x3 - 3x2 + 5x - 15

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
4 0

Answer:

(x²+5) (x-3)²

Step-by-step explanation:

x³ - 3x² + 5x - 15

x²(x-3) + 5(x-3)

(x²+5) (x-3)²

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Please answer as soon as possible. Answers appreciated.​
GREYUIT [131]

Answer:(-1.412,-2.124),(3.29,7.28)

Step-by-step explanation:

Given

The given equation is 2^x-2.5=2x+0.7

There are two functions i.e. y=2^x-2.5\ \text{and}\ y=2x+0.7

Their intersection gives the solution of the above function

From the graph, we can see that both the graph intersects at two different points i.e.  at

(-1.412,-2.124)\ \text{and}\ (3.29,7.28)

6 0
2 years ago
Math need exact anwser pls!!!!!!
stiks02 [169]
What’s the question
6 0
3 years ago
Explain the error a student is asked to find when the value of an investment of $5200 is an account that earns 4.2% annual inter
zloy xaker [14]

We are given the following information

Investment = $5200

Annual interest rate = 4.2% = 0.042

Final amount = $16,500

Number of years = 27.7 years

Number of compoudings = quartely = 4

The student uses the following model

V(t)=5200(1.014)^{3t}

The general formula for compound interest is given by

V(t)=P(1+\frac{r}{n})^{nt}

As you can see, the number of compoundings is incorrect (3 vs 4)

The interest rate is also incorrect.

Let us substitute the given values into the above formula

\begin{gathered} V(t)=P(1+\frac{r}{n})^{nt} \\ V(t)=5200(1+\frac{0.042}{4})^{4\cdot27.7} \\ V(t)=5200(1+0.0105)^{110.8} \\ V(t)=5200(1.0105)^{110.8} \\ V(t)=\$16543.5^{} \end{gathered}

Therefore, the final amount is approximately $16,543.5

5 0
1 year ago
Why aren't theories considered absolute truths?
Whitepunk [10]
They are not absolutely truths because they are not found to be truth of false they are things that are only a thing carried over they years and not know if they are the truth or if they are false
6 0
3 years ago
Read 2 more answers
I can write numerical expressions involving whole-number exponents
DerKrebs [107]

Answer:

yes

Step-by-step explanation:

nothing much u have to do like what ur teacher said

7 0
3 years ago
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