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Nostrana [21]
4 years ago
13

A, B and C form the vertices of a triangle. BC = 6.9cm and ∠ CBA = 137°. Given that the area of the triangle is 12.6cm^2, calcul

ate the perimeter of the triangle rounded to 1 DP.
Mathematics
1 answer:
Anon25 [30]4 years ago
8 0

Answer:

9304t5492860534795782437904209872423897897458790532870925879048790248309787904879525492898977042247980424372

Step-by-step explanation:

assho;le

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If the radius is 14cmand The perimeter of the sector is 57.32cm.<br>what is the size of the angle?​
Degger [83]

Answer:

120°

Step-by-step explanation:

A sector of a circle is the portion or region of a circle enclosed by two radii and an arc. The perimeter of a the sector of a circle is given by the formula:

Perimeter of sector = \frac{\theta}{360} *2\pi r + 2r

Where θ is the angle which forms the sector and r is the radius of the circle.

Given that Perimeter of sector = 57.32 cm, radius (r) = 14 cm, we can find the angle θ using:

Perimeter of sector = \frac{\theta}{360} *2\pi r + 2r

57.32=\frac{\theta}{360} *2\pi *14+2(14)\\\\57.32-28=\frac{\theta}{360} *2\pi *14\\\\29.32=\frac{\theta}{360} *2\pi *14\\\\ \frac{\theta}{360}=\frac{29.32}{2\pi *14} \\\\\frac{\theta}{360}=0.33\\\\\theta=120^o

7 0
3 years ago
If f(x) = 5x-25 and G(x) = 1/5x +5, which expression could be used to verity g(x) is the inverse of f(x)
adell [148]

Answer: Hello! I'm Jungkook. Here is your answer.....

The expression could be used to verify g(x) is the inverse of f(x) is letter b which is 1/5(5x-25)+5

Step-by-step explanation:

Hope this helps! Anneyong/Bye!

xoxoKookie

3 0
2 years ago
Polygon ABCD goes through a sequence of rigid transformations to form polygon A′B′C′D′. The sequence of transformations involved
frosja888 [35]
The answer is y axis , y=-x

7 0
4 years ago
Which equation can be simplified to find the inverse of y = x2 - 7?
Solnce55 [7]

Answer:

The inverse is

y =  \pm \sqrt{ {x}^{2} - 7 }

Step-by-step explanation:

The options are not provided.

However, I will show you how to find the inverse of

y =  {x}^{2}  - 7

We interchange x and y to get,

x =  {y}^{2}  - 7

We solve for y,

{y}^{2}  = x + 7

y =  \pm \sqrt{x + 7}

4 0
3 years ago
If you budgeted 12 % of your monthly income for groceries how much can you spend if you earn $950 bi weekly
dezoksy [38]

Answer:

If I budget 12% of my monthly income for grocerises and I earn $950 bi-weekly.

Now, the term 'Biweekly' has an ambiguity. Given that in some countries like the UK, Ireland and Australia it means 'Every two weeks' but in other countries it means 'Twice every week'. In this case, we're going to solve both cases:

  • Case #1: Biweekly means every two weeks.

In this case, I would earn $1900 a month. Now, 12% percent of my monthly income is: 0.12 × $1900 = $200.

Therefore, I would spend $200 a month in groceries.

  • Case #2: Biweekly means twice a week.

In this case, I would earn $1900 a week or $7600 a month . Now, 12% percent of my monthly income is: 0.12 × $7600 = $912.

Therefore, I would spend $912 a month in groceries.

Probably, the exercise refers to case #1. But just in case, I considered both cases.

4 0
3 years ago
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