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ANTONII [103]
2 years ago
14

Iv)

Mathematics
1 answer:
Lunna [17]2 years ago
6 0

Answer:

Step-by-step explanation:

Given numbers : 2 , 6, 18, 54

Since common ration between numbers,

common \ ratio \ in \ GP , \ r = \frac{a_n}{a_{n-1}} =  \frac{6}{2} = 3

So the numbers are in GP.

Now Sum of the numbers = 2 + 6 + 18 + 54 = 80

AM, arithmetic mean between first and last number :

                                                                             \frac{54+2}{2} = \frac{56}{2} =28

All the conditions are true.

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What is 1/2-5/13.....
Lerok [7]

1/2 - 5/13 = 3/26 = 0.115

Because: 1/2 - 5/13 = 1 x 13 ÷ 2 x 13 - 5 x 2 ÷ 13 x 2 = 13/26 - 10/26

13/26 - 10/26 = 13 - 10 ÷26 = 3/26 or 0.115.

Hope helps-Aparri

4 0
3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
Viktor [21]

Answer:

Step-by-step explanation:

Triangle IJK is a right angle triangle.

From the given right angle triangle

JK represents the hypotenuse of the right angle triangle.

With ∠K as the reference angle,

IK represents the adjacent side of the right angle triangle.

IJ represents the opposite side of the right angle triangle.

To determine Cos K, we would apply trigonometric ratio

Cos θ = adjacent side/hypotenuse. Therefore,

Cos K = 36/85

Cos K = 0.4235

Rounding up to the nearest hundredth,

Cos K = 0.42

4 0
3 years ago
a photographer shines a camera light at a particular painting forming an angle of 50 degrees with a camera platform at the light
umka2103 [35]

Answer:

The painting is 42.13 feet above  the platform

Step-by-step explanation:

Refer the attached figure .

A particular painting forming an angle of 50 degrees with a camera platform .

∠ABC = 50°

We are also given that the light is 55 feet from the wall where the painting hangs

i.e. AB = 55 feet.

Now we are required to find how high above the platform is the painting​. i.e. AC

So, we will use trigonometric ratio :

sin\theta = \frac{Perpendicular}{Hypotenuse}

sin50^{circ} = \frac{AC}{AB}

sin50^{circ} = \frac{AC}{55}

0.766*55 = AC

42.13= AC

Thus the painting is 42.13 feet above  the platform

8 0
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I want to fence in a rectangular vegetable patch. The fencing for the east and west sides costs $2 per foot, and the fencing for
scoray [572]

Answer:

largets area is 32 feet cubed

Step-by-step explanation:

8=4  foot 2 for each  side w and e and 32feet n and s  16 each side

8 0
2 years ago
Please help me with my math problems
natulia [17]

Answer:

is it subtraction or addition?

Step-by-step explanation:

7 0
2 years ago
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