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3 years ago

Figure ABCD is a parallelogram. What is the perimeter of ABCD?

Mathematics

2 answers:

zheka24 [161]3 years ago

7 0

The perimeter of Parallelogram ABCD is 52 cm.

Alex73 [517]3 years ago

3 0

Well, what are the lengths of each side of the parallelogram?

Remember, perimeter is all of the sides of a figure added together. So, whatever number you get from adding them up is your figure's perimeter!

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Telephone inquiries of 100 IRS "customers" are monitored daily at random. Incidents of incorrect information or other nonconform

oee [108]

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3 years ago

Find an equation for the nth term of the arithmetic sequence.

amm1812

Answer:

$a_n=-301 +37(n-1)$

Step-by-step explanation:

arithmetic sequence formula: $a_n=a +(n-1)d$

where $a$ is the first term and $d$ is the common difference

Given:

$a_{10}=32$

⇒ $a +(10-1)d=32$

⇒ $a+9d=32$

Given:

$a_{12}=106$

⇒ $a +(12-1)d=106$

⇒ $a+11d=106$

Rearrange the first equation to make $a$ the subject:

a = 32 - 9d

Now substitute into the second equation and solve for $d$

(32 - 9d) + 11d = 106

⇒ 32 + 2d = 106

⇒ 2d = 106 - 32 = 74

⇒ d = 74 ÷ 2 = 37

Substitute found value of $d$ into the first equation and solve for $a$ :

a + (9 x 37) = 32

a + 333 = 32

a = 32 - 333 = -301

Therefore, the equation is: $a_n=-301 +37(n-1)$

4 0

2 years ago

The frequency table shows the results of drawing 20 cards from a bag of 100. There are an

zepelin [54]

Answer:

It's 50 percent right

Step-by-step explanation:

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3 years ago

(2n^4 - 8 - 3n) - (4n^2 + 7n +4) <br> I have to simplify but don't know how to

Ahat [919]

First remove the parenthes as there is a negtive outside the second parentheses the signs of the terms inside change.

= 2n^4 - 8 - 3n - 4n^2 - 7n - 4

Now simplify like terms

= 2n^4 - 4n^2 - 10n - 12

= 2(n^4 - 2n^2 - 5n - 6)

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3 years ago

A regular hexagon is rotated about its center. By which angle could the hexagon be rotated so that it is mapped onto itself?

Sauron [17]

Answer: 60

Step-by-step explanation:

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3 years ago