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posledela
3 years ago
15

Here's the question ​

Mathematics
1 answer:
zheka24 [161]3 years ago
4 0

Answer:

60

Step-by-step explanation:

perimeter (p) = 8 + 17 + 15 = 40

semi-perimeter (s) = p/2 = 20

Area = square root of s(s-a)(s-b)(s-c) where a,b,c are the sides of the triange by Herons formula.

Therefore, area = 20(20-8)(20-15)(20-17) = square root of 3600 = 60

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7.
snow_tiger [21]

Answer:

Range is 18.

Step-by-step explanation:

Range can be calculated by subtracting the smallest value of the data set from the largest value of the data set.

The values are:

13, 17, 18, 15, 12, 21, 10, 6, 8, 11, 3

Largest Value in this data set:  21

Smallest Value in this data set: 3

Range = Largest Value - Smallest Value

Range = 21 - 3

Range = 18

6 0
3 years ago
Students arrived at the science museum at 1:15 P.M. They stayed at the museum for
Diano4ka-milaya [45]

Answer: A. O 3:06 P.M.

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3 0
3 years ago
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pishuonlain [190]

Answer:

y=-2/3x-1

Step-by-step explanation:

4 0
3 years ago
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Some of the steps in the derivation of the quadratic formula are shown. Step 4: Step 5: Step 6: Step 7: Which best explains why
AlexFokin [52]
               The correct answer for this question is this one: "The square root of terms separated by addition and subtraction cannot be calculated individually."

<span>The statement that best explains why the expression cannot be rewritten as during the next step is that t</span>he square root of terms separated by addition and subtraction cannot be calculated individually.
Hope this helps answer your question and have a nice day ahead.    ..... hope that helps

5 0
3 years ago
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a survey indicates that 3 out of 5 doctors use brand x asprin. If 2000 doctors were surveyed, how many used brand x?
DiKsa [7]
The answer is 1200
3/5=x/2,000
2,000/5=400
3 x 400=1200
5 0
3 years ago
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