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Lubov Fominskaja [6]
3 years ago
7

How find the area of a parallelogram when base 9 feet and the side is 8/9 feet

Mathematics
2 answers:
Nana76 [90]3 years ago
7 0
9*8/9=8 square feet.
Rama09 [41]3 years ago
4 0
Is this a rectangle? If it is, then it is 9*8/9=8 square feet.

If it is a general parallelogram, there is not enough information to solve the problem because we don't know the height for certain.
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Find the sum of the arithmetic sequence. 5,7,9,11,...,23
eduard

Answer:

140

Step-by-step explanation:

The arithmetic series is 5, 7, 9, 11, ........., 23.

First u have to determine the no. of terms that can be done by using

Tₙ = [a + (n - 1)d]

Tₙ-------nth term

a---------first term

n---------no.of terms in the series

d---------common difference

here a = 5,d = 2.

let it contain n terms Tₙ= [a + (n-1)d]

Substitute Tₙ, a, and d in the equation

23 = 5 + (n - 1)2

Subtract 5 from each side.

18 = (n-1)2

Divide each side by 2

(n - 1) = 9

Add 1 to each side

n = 9 + 1 = 10

The sum of the arithmetic sequence formula: Sₙ= (n/2)[2a+(n-1)d]

Substitute Sₙ, a, n and d in the equation

Sₙ= (10/2)[2(5) + (10-1)2]

Sₙ= (5)[10 + (9)2]

Sₙ= 5[10 + 18]

Sₙ= 5[28] = 140

Therefore the sum of the arithmetic sequence is 140.

6 0
2 years ago
A salesman makes 4% commission on sales. What is his commission on $8,472 worth of sales?
Slav-nsk [51]

Answer:

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Step-by-step explanation:

6 0
2 years ago
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Kay [80]

=  \frac{6x + 8}{4x + 4}  \div  \frac{4x + 4}{4x + 4}   \\  =  \frac{2x + 4}{1}  \\  = 2x + 4
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3 years ago
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4(a + 2) = -4<br> whats A
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How is place value used to model and find products when multiplying 2 digit numbers?
Aleksandr-060686 [28]

Answer:

1 x 4=4 (Both numbers are in the ones place, so their value are ones.)

Step-by-step explanation

In order to use place value to multiply, we use the distributive property to break apart each place. Always begin with the ones place. We can break apart a 2-digit by 1-digit number into 2 simpler problems. 1 x 4=4 (Both numbers are in the ones place, so their value are ones.)

6 0
3 years ago
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