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3 years ago

Find the area of the composite figure. Don't forget to use the word "square" and then the given units in your answer.

Mathematics

1 answer:

fgiga [73]3 years ago

6 0

(11.5 x 34) + (16 x 16) = 256.5 meters squared :)

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Find the sum of the arithmetic sequence 1, 3, 5, 7, … , 99.

bezimeni [28]

The sum of the arithmetic sequence 1, 3, 5, 7, … , 99 is 2525

<h3>What is Sequence?</h3>

Sequence is an enumerated collection of objects in which repetitions are allowed and order matters.

Given sequence is 1, 3, 5, 7, … , 99.

It is a arithmetic sequence, the difference between two consecutive terms will be same

d=3-1=2

first term a=1

l=last term =99

We need to find 99 is which term in the sequence

Aₙ = a + ( n - 1 ) d

99=1+(n-1)2

99=1+2n-2

99=2n-1

100=2n

Divide both sides by 2

50=n

Now we need to find the sum of 50 terms

Sₙ=n/2(l+d)

=50/2(99+2)

=25(101)

=2525

Hence, the sum of the arithmetic sequence 1, 3, 5, 7, … , 99 is 2525

To learn more on Sequence click:

brainly.com/question/21961097

#SPJ1

6 0

1 year ago

I wanna finish this hw but I don't know how to do it pls teach me

tresset_1 [31]

Answer:

y 16

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

4x+2=5x-6. I need this solved with all work shown. thank you.

PtichkaEL [24]

Answer:

Step-by-step explanation:

4x+2=5x-6

4x-5x=-6-2

-x=-8

therefore, x=8

6 0

3 years ago

Read 2 more answers

How to solve please help thank you

Rashid [163]

her new balance is $105.

hope this helps.

7 0

3 years ago

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A triangular pyramid and its net are shown. Rain uses Calculations below to conclude that the surface area of a triangular pyram

Harman [31]

Answer:

Rain is correct, calculates correctly, 238.5 square inches

Step-by-step explanation:

The given triangular pyramid is shown with the dimensions.

The surface area of the triangular pyramid is given by :

$A=\frac{1}{2}\left(a \times b\right) + 3\left(\frac{1}{2}\times b\times s\right)$

$A=\frac{1}{2}\left(10 \times 8.7\right) + 3\left(\frac{1}{2}\times 10\times 13\right)$

$A=43.5+(3\times 65)$

$A=43.5+195$

$A=238.5 \ \text{inche}^2$

Therefore, the surface area of the triangular pyramid is = 238.5 square inches.

5 0

3 years ago