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3 years ago

Help me please, Calculate the external perimeter of the picture frame:

Mathematics

1 answer:

Studentka2010 [4]3 years ago

8 0

Perimeter of a parallelogram = 2(l+b)
= 2 (65+42)
= 2*107
= 214 cm

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two orienteering courses are a represented on suitable axes as 3x - 2y = - 17 and 3y - 4x =24 the courses have one checkpoint in

Vitek1552 [10]

3x - 2y = -17 -> 9x - 6y = -51

3y - 4x = 24 -> 6y - 8x = 48

9x - 6y = -51

6y - 8x = 48

------------------- +

x = -3

3x - 2y = -17

3(-3) - 2y = -17

-9 - 2y = -17

-2y = -8

y = 4

Coordinate : (-3, 4)

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3 years ago

Janice bought 2 gifts yesterday. The price of one gift was 3 times the cost of the other. If both gifts cost $25.60 altogether,

Ahat [919]

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Step-by-step explanation:

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3 years ago

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Shandra's parents put $1,500 in her bank account for college tuition. At an interest rate

gavmur [86]

Answer:

$6,427.99

Step-by-step explanation:

-We first find the effective annual interest rate as follows:

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3 years ago

Angle c is inscribed in circle O. AB is a diameter of circle O. what is the radius of circle.

Llana [10]

Answer:

The value of radius is 7.5 units

Step-by-step explanation:

Given that a line that pass through the origin and form a triangle is a right-angle triangle. So in order to find the diameter/hypotenuse, you have to use Pythogaras Theorem :

${c}^{2} = {a}^{2} + {b}^{2}$

Let a = 12 units,

Let b = 9 units,

Let c = hypo.,

${hypo.}^{2} = {12}^{2} + {9}^{2}$

${hypo.}^{2} = 225$

$hypo. = \sqrt{225}$

$hypo. = 15 \: \: units$

We have found out that the hypotenuse of the triangle is the diameter of circle. So in order to find radius, you have to divide it by 2 :

$radius = diameter \div 2$

$radius = 15 \div 2$

$radius = 7.5 \: \: units$

6 0

3 years ago

Help me this assignment is due soon.

AlekseyPX

So maybe it’s 5, it’s equivalent to the side with 6, just shorter

6 0

3 years ago

Help me please, Calculate the external perimeter of the picture frame: ​

Help me please, Calculate the external perimeter of the picture frame: