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3 years ago

Write the polynomial which represents the perimeter of a triangle whose sides are represented

Mathematics

1 answer:

denis-greek [22]3 years ago

4 0

Answer:

The polynomial is 10x^2 + 10x -2

Step-by-step explanation:

To get the polynomial which represents the perimeter, what we need to do is to add up all

these values. We use the formula for finding the perimeter of a triangle and that involves adding up all the three sides. That would be;

2x^2 + 3x + 5x^2 -1 + 3x^2 + 7x -1

10x^2 + 3x -1 + 7x -1

10x^2 + 10x -2

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3. Luis wants to calculate the volume of his globe. The globe is in the shape of a sphere, as represented in

Aloiza [94]

The measure which is closest to the volume of Luis's globe is; 6301.2in³

<h3>Volume of a sphere</h3>

If the circumference of the globe along the equator is 72inches along the equator;

C = 72 = 2π× r

Hence, the radius of the globe can be evaluated as;

r = 72/(2×3.14)

r = 72/6.28

r = 11.46in.

On this note, the Volume, V of the globe is;

V = (4/3) × π × r³

V = (4/3) × 3.14 × 11.46³

V = 6301.2in³

Read more on volume of a sphere;

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2 years ago

6.00 as a mixed number or fraction in simplest form

Andrew [12]

Okay, are there any choices?

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4 years ago

Historically, the proportion of people who trade in their old car to a car dealer when purchasing a new car is 48%. Over the pre

artcher [175]

Answer: The proportion of new car buyers that trade in their old car has statistically significantly decreased.

Step-by-step explanation:

Since we have given that

p = 48% = 0.48

n = 115

x = 46

So, $\hat{p}=\dfrac{46}{115}=0.40$

So, hypothesis would be

$H_0:\ p=\hat{p}\\\\H_a:p$

So, test value would be

$z=\dfrac{p-\hat{p}}{\sqrt{\dfrac{p(1-p)}{n}}}\\\z=\dfrac{0.48-0.40}{\sqrt{\dfrac{0.48\times 0.52}{115}}}\\\\z=\dfrac{0.08}{0.0466}\\\\z=1.72$

At 10% level of significance, critical value would be

z= 1.28

Since 1.28 < 1.72

So, we will reject the null hypothesis.

Hence, the proportion of new car buyers that trade in their old car has statistically significantly decreased.

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3 years ago

The measure of angle FHJ is 60,the measure of angle FGH is 28 what is the measure of angle HFG

iren2701 [21]

Answer:

Step-by-step explanation:

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3 years ago

What is the domain of the given function?

EleoNora [17]

Answer:

domain is equal to x. therefore, the domain is all of the x values. x = -6,-1,0,3

Step-by-step explanation:

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3 years ago

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