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stiks02 [169]
3 years ago
6

Find the perimeter of the figure shown above. a. 20 in c. 30 in b. 24 in d. 18 in Please select the best answer from the choices

provided A B C D

Mathematics
1 answer:
hram777 [196]3 years ago
6 0

Answer:

B. 24 in

Step-by-step explanation:

Add the known sides = 19 in

To solve for the two unknown sides -

Side across from the vertical 3 in is the same, so add another 3 inches to 19 = 22 in

For the side across from the 7in you need to subtract the horizontal sides next to it that you already know.

7 = 3 + 2 +x

x = 2

so add 2 in

22 + 2 = 24in

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-3x is less than or equal to 3, the solution of the inequality is?
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2 years ago
In 15 words or fewer, describe what happens to the coordinates when
andriy [413]

Answer:  The graph becomes narrower

<u>Step-by-step explanation:</u>

The vertex form of a quadratic equation is: y = a(x - h)² + k   where

  • |a| represents the vertical stretch if |a| > 1, vertical shrink if |a| < 1
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8 0
3 years ago
Find the indicated sum of each sequence S8 of -2,-13,-24,-35
valentina_108 [34]

Answer:

The sum of the arithmetic sequence is S_{8}=-324.

Step-by-step explanation:

A sequence is a set of numbers that are in order.

In an arithmetic sequence the difference between one term and the next is a constant.  In other words, we just add the same value each time infinitely.

If the first term of an arithmetic sequence is a_1 and the common difference is d, then the nth term of the sequence is given by:

                                                  a_{n}=a_{1}+(n-1)d

For the sequence

                                                -2,-13,-24,-35,...

The pattern is continued by adding -11 to the last number each time.

An arithmetic series is the sum of an arithmetic sequence.  We find the sum by adding the first, a_1 and last term, a_n, divide by 2 in order to get the mean of the two values and then multiply by the number of values, <em>n</em>

<em>                                                     </em>S_{n}=\frac{n}{2}(a_{1}+a_{n})<em />

The sum of the arithmetic sequence is

a_{8}=-2+(8-1)(-11)=-2-77=-79

S_{8}=\frac{8}{2}(-2-79})=4\left(-2-79\right)=4\left(-81\right)=-324

3 0
3 years ago
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