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Olegator [25]
3 years ago
10

Herons formula triangle is​

Mathematics
1 answer:
Amanda [17]3 years ago
7 0

Answer:

Heron's formula (sometimes called Hero's formula), named after Hero of Alexandria, gives the area of a triangle when the length of all three sides are known. Unlike other triangle area formulae, there is no need to calculate angles or other distances in the triangle first.

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The answer to the problem
larisa86 [58]

She puts 8% of her salary in, so multiply her pay by 8% to get her yearly amount she saves:

45000 x 0.08 = $3,600 per year.

The company puts 6% of that in the account:

3600 x 0.06 = $216

So per year 3600 + 216 = $3,816 is saved.

3,816 x 2 = $7,632 is the 2 year total.

The answer is A.

6 0
4 years ago
Whats the answer? ???​
siniylev [52]

Answer:

8

Step-by-step explanation:

You do 240 divided by 30 to get 8

8 0
3 years ago
Read 2 more answers
Jonathan’s class has 30 boys. Of the students in his class, 60% are girls. How many girls are in Jonathan’s class?
raketka [301]

Answer:

45 girls

Step-by-step explanation:

  • Remark
  • There are only 2 choices for gender. So if the class is 60% girls, the there must be 100 - 60 = 40% for the boys.
  • But we are told that the boys are 30 in number.
  • Let x = the total number of students.

Solution

  • 40/100 * x = 30              Change the % to a decimal
  • 0.4 x = 30                       Divide both sides by 0.4
  • 0.4 x / 0.4 = 30 / 0.4      Do the division
  • x = 30/0.4
  • x = 75 students in total

Formula

Total of Boys and Girls = Number of boys + number of girls.

Givens

  • Total = 75
  • Number of boys = 30

Solution II

  • 75 = x + 30                 Subtract 30 from each side
  • 75 - 30 = x +30 - 30
  • 45 = x
  • There are 45 girls in the class.
5 0
3 years ago
I need help this with use 3.14 and use a expression of a formula of area
kifflom [539]

Answer

Step-by-step explanation:

3 0
3 years ago
draw and label a base twice as long as the height and an area less than 60 square inches. find the area.
Murljashka [212]
The height could be 2 inches and the width could be 4 inches which means it's a total of 8 squared inches
8 0
3 years ago
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