All categories

2 years ago

How to solve 421 divided by 2.54

Mathematics

2 answers:

irina [24]2 years ago

7 0

Your answer should be 168.40

vladimir1956 [14]2 years ago

3 0

Just put it in your calculator, kids are allowed to use calculators these days on the important tests... 421/2.54 = 165.748031

You might be interested in

Solve for h: v = pi squared multiplied by h h = V multiplied by pi over r squared h = V over pi r squared h = V plus pi r square

alexandr1967 [171]

Hello from MrBillDoesMath

Answer:

See below for steps.

Discussion:

As I understand the problem statement we have a cylinder of height h and radius r. The volume of the cylinder is given by the formaul:

V = (pi * r^2) h

Divide both sides by (pi * r^2):

V\ (pi * r^2)) = ( (pi * r^2) * h ) \ ((pi * r^2) =>

V\ (pi * r^2) = 1 * h = h as (pi * r^2) \ (pi * r^2))

Therefore, h = V\ (pi * r^2)

Thank you,

Mr. B

7 0

2 years ago

Read 2 more answers

How do I slove this eqaution, and whats the answer?<br> -3(n+6)+10=-9

Sauron [17]

Answer:

$n = \frac{1}{3}$

Step-by-step explanation:

Apply the distributed property, so it now looks like this: -3n + -18 + 10 = -9
Combine like terms: -3n + -8 = -9
Simplify: -3n - 8 = -9
Add 8 to each side, so it now looks like this: -3n = -1
Divide each side by -3 to cancel out the -3 next to n. It should now look like this: n = 1/3

I hope this helps!

8 0

2 years ago

Estimate the integral ∫6,0 x^2dx by the midpoint estimate, n = 6

Anettt [7]

Splitting up the interval [0, 6] into 6 subintervals means we have

$[0,1]\cup[1,2]\cup[2,3]\cup\cdots\cup[5,6]$

and the respective midpoints are $\dfrac12,\dfrac32,\dfrac52,\ldots,\dfrac{11}2$ . We can write these sequentially as ${x_i}^*=\dfrac{2i+1}2$ where $0\le i\le5$ .

So the integral is approximately

$\displaystyle\int_0^6x^2\,\mathrm dx\approx\sum_{i=0}^5({x_i}^*)^2\Delta x_i=\frac{6-0}6\sum_{i=0}^5({x_i}^*)^2=\sum_{i=0}^5\left(\frac{2i+1}2\right)^2$

Recall that

$\displaystyle\sum_{i=1}^ni^2=\frac{n(n+1)(2n+1)}6$
$\displaystyle\sum_{i=1}^ni=\frac{n(n+1)}2$
$\displaystyle\sum_{i=1}^n1=n$

so our sum becomes

$\displaystyle\sum_{i=0}^5\left(\frac{2i+1}2\right)^2=\sum_{i=0}^5\left(i^2+i+\frac14\right)$
$=\displaystyle\frac{5(6)(11)}6+\frac{5(6)}2+\frac54=\frac{143}2$

8 0

2 years ago

Fator the following problem x^2+12x+36

Mekhanik [1.2K]

Answer:

(x-6)^2

Step-by-step explanation:

Hope this helped

5 0

1 year ago

Read 2 more answers

Which expression is equivalent to d-6d-3dd−6d−3d?

Softa [21]

Answer:-8d -9dd

Step-by-step explanation:I looked it up :)I'm not good at math so yeahhh but I hope this is right but if not I'll try again

7 0

2 years ago