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LiRa [457]
2 years ago
6

Find the circumference of the circle in terms of

lt=" \pi " align="absmiddle" class="latex-formula">
A. 156\pi in
B. 39pi in
C. 1521pi in
D. 78pi in

Mathematics
1 answer:
Tanya [424]2 years ago
4 0
D. 78pi in
Do you need an explanation?
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In ΔNOP, p = 2.5 cm, n = 2.3 cm and ∠O=71°. Find the area of ΔNOP, to the nearest 10th of a square centimeter.
Leona [35]

The area of the triangle is expressed as 2.718cm²

<h3>Area of a triangle</h3>

The formula for calculating the area of a triangle is expressed as:

A = 0.5absinФ

  • a and b are the sides
  • Ф is the angle

Given the following

  • p = 2.5 cm
  • n = 2.3 cm and;
  • ∠O=71°

Substitute the given parameters to have:

Area = 0.5(2.5)(2.3)sin71

Area = 2.718cm²

Hence the area of the triangle is expressed as 2.718cm²

Learn more on area of triangle here: brainly.com/question/17335144

3 0
2 years ago
HELP PLEASE<br> here’s the question
polet [3.4K]

Answer:

1.9 hours

Step-by-step explanation:

7.6 divided by 4

5 0
3 years ago
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What is the first term of the geometric sequence below?
borishaifa [10]
2 because it’s multiplied by 2 so it would go 2x2 = 4 x 2 = 8 and so on
7 0
2 years ago
I WANT SOLUTION AND EXPLANATION ANSWER IS GIVEN AT LAST!!!
kozerog [31]
<h3><u>Question</u><u>:</u></h3>

<u>The difference between a 2-digit number and the number formed by reversing its digits is 45. If the sum of the digits of the original number is 13, then find the number. </u>

<h3><u>Statement</u><u>:</u></h3>

<u>The difference between a 2-digit number and the number formed by reversing its digits is 45. </u><u>T</u><u>he sum of the digits of the original number is 13</u><u>.</u>

<h3><u>Solution:</u></h3>
  • Let one of the digit of the original number be x.
  • So, the other digit = (13-x)
  • Therefore, the two digit number = 10(13-x) + x = 130-10x+x = 130-9x
  • The number obtained after interchanging the digits is 10x+(13-x) =9x+13
  • Therefore, by the problem

130-9x-(9x+13) = 45

or, 130-9x- 9x-13 = 45

or, -18x = 45-130+13

or, -18x= -72

or, x = 72/18 = 4

or, x = 4

  • So, the original number = 130-9x = 130 -9(4) = 130 - 36 = 94
<h3>Answer:</h3>

The number is 94.

I think the answer you have given isn't right. The answer should be 94.

7 0
2 years ago
Please help ill mark brainliest​
IgorLugansk [536]

Answer:

i think its 18

Step-by-step explanation:

5 0
3 years ago
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