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horsena [70]
3 years ago
12

Reema and Sohini bought (x^2 - 9) mangoes.They divided into (x+3) groups.Each group has three rotten mangoes.How many good

Mathematics
1 answer:
Gemiola [76]3 years ago
6 0

Answer:

x - 6

Step-by-step explanation:

divide number of mangoes bought by number of groups, that is

\frac{x^2-9}{x+3}

= \frac{(x+3)(x-3)}{x+3} ← numerator is difference of squares

cancel the factor (x + 3) on numerator/denominator

number in each group = x - 3

subtract 3 rotten mangos from group for good mangoes

good mangoes = x - 3 - 3 = x - 6




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PLEASE HELP
mihalych1998 [28]

Answer: The height is 4.472

Step-by-step explanation: That formula is Heron's formula.

Where "s" is calculated like this:

s = (a + b + c) / 2

In this case:

a = 14

b = 12

c = 6

replacing:

s = (14 + 12 + 6) / 2

s = 16

Now we calculate the area:

A ^ 2 = 16 * (16−14) * (16−12) * (16−6)

A ^ 2 = 1280

A = 35.777

The area of the triangle is:

A = b * h / 2

In this case we will take the base as the longest side of the triangle, that is to say = 14

Thus:

h = A * 2 / b

h = 35.777 * 2/16

h = 4.472

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8 0
2 years ago
Dalila earns $108.75 for workin 15 hours as a holiday helper wrapping gifts. At this rate,how much money will she earn if she wo
Elden [556K]
Your answer would be $130.50.

We can write a ratio of earnings to hours as 108.75:15. Then, to find 18 hours, we find 1 hour and multiply by 18:

108.75 : 15
÷ 15
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So therefore your answer is $130.50, I hope this helps!
3 0
3 years ago
Select the functions that have a value of 0.
Sphinxa [80]

Answer:

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Step-by-step explanation:

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3 years ago
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DerKrebs [107]

Answer:

We need to know what the program is...

Step-by-step explanation:

This question is literally unanswerable as some programs last 2 seconds and some would last thousands of years. More context as to what the program is please.

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3 years ago
What number is 1/10 as great as 7,962
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The number is 796.2.
Hope it helped ;)
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