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3 years ago

When would you use herons formula in the real world?

2 answers:

5 0

You can use herons formula to calculate the area of any triangles when you know the lengths of three sides real life math consumer math

Natalka [10]3 years ago

4 0

Heron's formula is named after Hero of Alexendria, a Greek Engineer and Mathematician in 10 - 70 AD. You can use this formula to find the area of a triangle using the 3 side lengths. Therefore, you do not have to rely on the formula for area that uses base and height. The picture below illustrates the general fro mu la where S represents the semi-perimeter of the triangle ,

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A lock has four dials. On each dial are the digits 0 to 9 how many possible combinations are there

madam [21]

Answer:

10,000

Step-by-step explanation:

The combination consists of four digits, hence 0000 to 9999. There at 10^4 or 10,000 possible combinations (but only one that works).

7 0

3 years ago

Write 0.4% as a fraction

gizmo_the_mogwai [7]

$\frac{0,4}{100} = \frac{0,2}{50}= \frac{0,1}{25}= \frac{1}{250}$
Hope that helps.Have a nice day!! ^^

8 0

3 years ago

Read 2 more answers

Esme buys jacketsfor 500 each and prices them for 700 each.If the selling price is reduced by 20%. how much profitdoes Esme make

Blababa [14]

Answer:

($) 60 is the profit per item when the selling price is reduced by 20%

Step-by-step explanation: 20% of 700 is 140.

The original profit is 700 - 500 = 200. The selling price is 140 less, Subtract 140 from 200. That leaves a profit of 60. (Not necessarily dollars, as the currency was not given in the question.)

7 0

3 years ago

The graph of f(x) = x3 + x2 - 9x - 9 is shown.

AysviL [449]

Answer:

-1, 3, -3

Step-by-step explanation:

I don't see the graph, but you can solve by factoring:

$x^3+x^2-9x-9=0\\x^2(x+1)-9(x+1)=0\\(x+1)(x^2-9)=0\\(x+1)(x+3)(x-3)=0$

By the factor theorem, the solutions of f(x) are -1, 3, and -3.

6 0

3 years ago

Read 2 more answers

The following table shows the number of innings pitched by each of the Greenbury Goblins' starting pitchers during the Rockbotto

Lady_Fox [76]

Answer:

The number of innings Brantley pitched is 7.

Step-by-step explanation:

We are given that the table shows the number of innings pitched by each of the Greenbury Goblins' starting pitchers during the Rockbottom Tournament below;

Pitcher Number of innings pitched

Calvin 11

Thom 12

Shawn 7

Kris 3

Brantley x

Let the number of innings Brantley pitched be 'x'.

The mean of the following data set is given by the following formula;

Mean = $\frac{\text{Sum of all data values}}{\text{Total number of observations}}$