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3 years ago

What are the possible rational zeros of f(x) = x4 + 6x3 – 3x2 + 17x – 15?.

1 answer:

4 0

$f(x) = x^4 + 6x^3-3x^2 + 17x-15\\\\15:\{\pm1;\ \pm3;\ \pm5;\ \pm15\}\\1:\{\pm1\}\\\\Answer:\boxed{\{\pm1;\ \pm3;\ \pm5;\ \pm15\}}$

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Plz help with the math worth 21 points

irinina [24]

Answer:

As there is one math problem over there.

Lets see the question first:

It says that "A hair dryer is rated $1200\ W$ ,if you use the dryer for $0.25\ h$ .How much electric energy do you use ?"

Final answer = Electic energy $=0.3\ kW\ h$

Step-by-step explanation:

Electrical Energy $E=Power \times time$ .

The total amount of electrical energy used depends on the total power used by the electrical device and the total time they are used for.

So we have been given the power of the hair dryer $=1200\ W =\frac{1200}{1000}=1.2\ kW$

Now the time it has been use for $=0.25\ hrs$

To calculate electric energy we will multiply both the terms.

Electric energy $=0.12 \times 0.25 =0.3\ kW\ h$

So electric energy used for the hairdryer is = $0.3\ kW\ h$

7 0

3 years ago

Ted is comparing the temperatures of three days in January the temperatures on Monday and Tuesday had the same absolute value th

ehidna [41]

Answer:

Tuesday Wednesday and lastly monday

Step-by-step explanation:

if the number on wednesday is negative nor positive its zero.

7 0

2 years ago

Which expression is equivalent to ( 5 ^ -2)^5 × 5^4

inna [77]

so the right answer is of option C.

Look at the attached picture⤴

Hope this will help u...:)

5 0

3 years ago

Read 2 more answers

what is the base of the exponent in the function f(x)=3(3\8)^2x when the function is written using only rational numbers and is

NeX [460]

The answer:

by definition, an exponential function with base c is defined by h (x) = ac^x
where a ≠0, c > 0 , b ≠1, and x is any real number.
The base, c, is a constant and the exponent, x, is a variable.
so if we have f(x)=3(3\8)^2x, this equivalent to f(x)=3(3\8)^y(x),
where y (x)=2x, 
therefore, the base is 3/8, and the variable is the function y (x)=2x,

5 0

3 years ago

Read 2 more answers

Select the correct answer.

sp2606 [1]

The perimeter of the pentagon with apothem of 5cm is 28.87cm

<h3>How to calculate the perimeter of a pentagon</h3>

The sum of all the external sides of the pentagon is its perimeter.

First we need to calculate the half of one of its sides using the SOH CAH TOA

tan 30 = x/5

x = 5 tan 30

x = 2.89

One of the sides = 2(2.89) = 5.77 cm

Perimeter of th pentagon = 5(5.77) = 28.87

Hence the perimeter of the pentagon with apothem of 5cm is 28.87cm

Learn more on perimeter of pentagon here: brainly.com/question/11484726

6 0

2 years ago