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3 years ago

Given the sequence in the table below, determine the sigma notation of the sum for term 4 through term 15. n an 1 5 2 −10 3 20

Mathematics

1 answer:

Alenkinab [10]3 years ago

4 0

Answer:

The answer to this would be 662.

Step-by-step explanation:

Sigma notation calls for the sum of the terms in the sequence.

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This trapezium is drawn on a centimetre grid. Find the area of the trapezium.

aivan3 [116]

Answer:

20 unit²

Step-by-step explanation:

A trapezium is given to us on the grid and we need to find out the area of the trapezium . In order to find the area , we need to find the measure of the parallel sides and the distance between the parallel sides.

From the grid :-

$\rm\implies Side_1 = 7 \ units$

$\rm\implies Side_2 = 3 \ units$

$\rm\implies \perp \ Distance =4 \ units$

Now here we got the two parallel sides of the trapezium and the distance between the two parallel sides. Now we can find the area as ,

$\rm\implies Area_{Trapezium}= \dfrac{1}{2}\times ( s_1 + s_2) \times \perp \ Distance \\\\\rm\implies Area = \dfrac{1}{2} \times ( 7 + 3 ) \times 4 \ unit^2 \\\\\rm\implies Area = \dfrac{1}{2} \times ( 10) \times 4 \ unit^2 \\\\\rm\implies\boxed{\rm Area = 20 \ unit^2}$

3 0

2 years ago

-5(x+1)+3x=6-(4x-3) solve for x

PilotLPTM [1.2K]

Answer: x = -3

Step-by-step explanation:Step by step solution :

Step 1 :

Pulling out like terms :

1.1 Pull out like factors :

-x - 3 = -1 • (x + 3)

Equation at the end of step 1 :

Step 2 :

Solving a Single Variable Equation :

2.1 Solve : -x-3 = 0

Add 3 to both sides of the equation :

-x = 3

Multiply both sides of the equation by (-1) : x = -3

One solution was found :

x = -3

7 0

3 years ago

6+9=============================================================================================================================

Scilla [17]

Answer:

Step-by-step explanation:

6+9=15

7 0

3 years ago

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Wire A is bent to form a rectangle with dimensions 5x cm by (4x +2) cm. Wire B is bent to form another rectangle with dimensions

Masja [62]

Answer:

Rectangle B has greater perimeter.

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2 years ago

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