3 years ago

Here are two shapes with the same area. Work out the perimiter of the rectangle.

1 answer:

3 0

So, we know the perimeter is 24 cm. and the top part is the left part, (x) + 2, but remember, we need to have it be a number that, multiplied by 2, is 24. So, using this formula, the length, (top / bottom) is 7, and x = 5. Because 5 + 5 = 10, and when length is +2, it adds up to 14. 10 + 14 = 24. So, length is 7, width, (left, right) is 5.

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Find the 11th term of the arithmetic sequence. a3 = 20.5 and a8 = 13, a11 = ______. ...?

lianna [129]

In order to solve for a nth term in an arithmetic sequence, we use the formula written as:

an = a1 + (n-1)d

where an is the nth term, a1 is the first value in the sequence, n is the term position and d is the common difference.

First, we need to calculate for d from the given values above.
a3 = 20.5 and a8 = 13


an = a1 + (n-1)d
20.5 = a1 + (3-1)d

an = a1 + (n-1)d
13 = a1 + (8-1)d

a1 = 23.5
d = -1.5

The 11th term is calculated as follows:

a11 = a1 + (n-1)d
a11= 23.5 + (11-1)(-1.5)
a11 = 8.5

8 0

3 years ago

Robert wants to install windows in a bus barn to improve the airflow in the summer months. If Robert makes his own screens, he c

DedPeter [7]

=1/2

you add both on each side then subtract 2 from you anser

8 0

3 years ago

ILL GIVE BRAINLIEST!!!!!! Please explain!! Thank youuuuu!

Natali5045456 [20]

Answer:

Table D

Step-by-step explanation: