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mr Goodwill [35]
3 years ago
10

Henry has a rope that is 9 meters long. He cuts away a plece that is 1.31 meters long. How long is the remaining plece of rope?

Mathematics
2 answers:
Olin [163]3 years ago
8 0

Answer: 7.69 meters long

Step-by-step explanation:

Since henry is cutting away rope, he is subtracting.

The rope is 9 meters long for the whole but he subtracts 1.3 meters from the 9 meters.

So, 9 - 1.31 = 7.69

Blababa [14]3 years ago
3 0
Take 9 and subtract 1.31. It equals 7.69 meters
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Three roots of a fifth degree polynomial function f(x) are –2, 2, and 4 i. Which statement describes the number and nature of al
bagirrra123 [75]

The correct option is f(x) has three real roots and two imaginary roots.

Given

Three roots of a fifth-degree polynomial function f(x) are –2, 2, and 4 i.

<h3>Complex conjugate</h3>

The complex conjugate of a complex number is the number with an equally real part and an imaginary part equal in magnitude but opposite in sign.

It is given that the roots of the fifth-degree polynomial function are -2, 2, and 4+i.

Since the degree of f(x) is 5, therefore there are 5 roots of the function either real or imaginary.

According to the complex conjugate root theorem, if a+ib is a root of a polynomial function f(x), then a-ib is also a root of the polynomial f(x).

Since 4+i is a root of f(x), so by complex conjugate rot theorem 4-i is also a root of f(x).

From the given data the number of real roots is 2 and the number of 2. The number of complex roots is always an even number, so the last root must be a real number.

Therefore, the correct option is f(x) has three real roots and two imaginary roots.

To know more about imaginary roots click the link given below.

brainly.com/question/1375079

3 0
2 years ago
How do you do this?<br>-14 + 6b + 7 - 2b= 1 + 5b
lys-0071 [83]

-14 + 6b + 7 - 2b= 1 + 5b

combine like terms

-7 +4b = 1 + 5b

subtract 4b from each side

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subtract 1 from each side

-7 -1 = 1-1 + b

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Jeans were $11.50 with a 15% sales tax. What is the sales tax?
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Step-by-step explanation:

7 0
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It takes 15 minutes to preheat your oven to 325 degrees. For an oven preheated to 325 degrees, the recommended cooking time for
Alisiya [41]

Answer:

(a) T = (15 + 16p) minutes

(b) It will takes approximately 239 minutes to prepare a turkey weighing 14 pounds

Step-by-step explanation:

(a) To determine the total time T needed to preheat the oven and then bake a turkey weighing p pounds

We will sum the time needed to preheat the oven to the time needed to bake the turkey.

From the question,

It takes 15 minutes to preheat the oven to 325 degrees;

Also,

It takes 16 minutes per pound to bake a turkey in the preheated oven.

That is, to bake a turkey weighing p pounds in the preheated oven, it will take

p pounds × 16 minutes / pound = 16p minutes

Hence, the total time T needed to preheat the oven and then bake a turkey weighing p pounds is

T = 15 minutes + 16p minutes

T = (15 + 16p) minutes

This is the formula that express the total time T, in minutes, needed to preheat the oven and then bake a turkey

(b) To find the approximate time required to prepare a turkey weighing 14 pounds.

From the formula in (a)

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where p is the weight in pounds of a turkey

Then,

T = 15 + 16(14)

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Hence, it will takes approximately 239 minutes to prepare a turkey weighing 14 pounds

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What does subsequent mean
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