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3 years ago

15

the volume of a large can of tuna fish can be calculated by using the formula V= pir^2h. write an equation to find the radius,

r, in terms of V and h

2 answers:

Dmitry_Shevchenko [17]3 years ago

5 0

$V=\pi r^2h\\
r^2=\dfrac{V}{\pi h}\\
r=\sqrt{\dfrac{V}{\pi h}
$

Svet_ta [14]3 years ago

4 0

V= pi x r^2 x h

V/(pi x h)=r^2

square root of [V/(pixh)]=r

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Select the correct answer.

jenyasd209 [6]

The expression which represents the other factor, or factors, of the given polynomial is option (C) (2x-1)(x+1)

A cubic equation in algebra is a one-variable equation of the form ax3+bx2+cx+d=0 where an is nonzero. The roots of the cubic function defined by the left side of this equation are the solutions to this equation.

Given expression 2x³-3x²-3x+2 whose one of factor is (x-2)

We have to find second factor of given equation

First we will be rational root theorem to given expression so will get following expression:

$\left(x+1\right)\frac{2x^3-3x^2-3x+2}{x+1}$

So one factor is (x-1) and now simplifying $\frac{2x^3-3x^2-3x+2}{x+1}$ we get 2x² - 5x +2 and the factor of 2x² - 5x +2 will be (2x-1)(x-2)

Hence the expression which represents the other factor, or factors, of the given polynomial is option (C) (2x-1)(x+1)

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4 0

2 years ago

Twenty-seven divided by three

Free_Kalibri [48]

The answer to your question is nine

4 0

3 years ago

Write a formula that can be used to find the area of a sector of a circle explain and justify the formula you wrote

Airida [17]

Answer:

X/360 (r^2)

Step-by-step explanation:

If X is the number of degrees of the sector, then the area will be given by

X/360 *r^2

Where r^2 is the radius of the circle. The denominator of X is 360 because the degrees of a circle add up to 360

For instance, if the sector is half the circle, then we have

180/360 *r^2 (or 0.5(360)*r^2)

8 0

3 years ago

Just a few questions that I need help with.

zvonat [6]

For 1: I used a calcultor I first wanted see how many groups of 24 their are out of 200. So I put in 200 / 24 = 8.33333333 Then I wanted to see the total number of students that have a tablet so I multiplied that 8.33333333 by 6 and got =50. So 50 out of 200 students have an electronic tablet.

2: I just used a calculator: 2.25 * 5 = 11.25 kilometers

3 0

3 years ago

Please help with this. Thanks

lisov135 [29]

Answer:

$\sqrt{106}$

Step-by-step explanation:

Given <u>v</u> = < - 5, 9 > then the magnitude is

| <u>v</u> | = $\sqrt{(-5)^2+9^2}$ = $\sqrt{25+81}$ = $\sqrt{106}$

4 0

4 years ago