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Allisa [31]
4 years ago
15

An arithmetic sequence is given below

Mathematics
1 answer:
Brut [27]4 years ago
4 0
The answer is
a(n) =  - 3n + 22
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A flower bed has a shape of a rectangle 9yards long and 3 yarss wide what is the area in square feet
Maslowich
It should be 81 square feet.

3 yards x 9 yards = 27 yards squares.

It asks for your answer in square feet, so you multiply by 3. This is because there are 3 feet in ever yard.

27 x 3 feet = 81 square feet.
8 0
3 years ago
What is the length of AB?<br> O A. 9<br> O B. 18<br> O C. 48<br> D. 6
insens350 [35]
<h3>Answer:  A.  9</h3>

=====================================================

Explanation:

Draw in the segments AO and OC.

Triangle ABO is congruent to triangle CBO. We can prove this through the use of the HL theorem. HL stands for hypotenuse leg.

Since the triangles are congruent, this means the corresponding pieces AB and BC are the same length.

Then we can say:

AB+BC = AC .... segment addition postulate

AB+AB = AC .... plug in BC = AB

2*AB = AC

2*AB = 18

AB = 18/2 .... divide both sides by 2

AB = 9

In short, the chord AC is bisected by the perpendicular radius drawn in the diagram. So all we do is cut AC = 18 in half to get AB = 9.

6 0
3 years ago
Read 2 more answers
Where do the graphs of the two functions below intersect?
olga nikolaevna [1]
4x-3=9x-13
10=5x
2=x
So these functions intersect when x=2.
7 0
3 years ago
Read 2 more answers
The sum of two numbers is 53. If their difference is 25 find both numbers.
timama [110]

Answer:

x=39

y=14

Step-by-step explanation:

x+y=53...(1)

x-y=25...(2)

(1)+(2): 2x==78

x=78/2

x=39

then

x+y=53

39+y=53

y=53-39

y=14

6 0
3 years ago
Find the value of each of these quantities. <br> C(5,3)<br> C(8,8)<br> C(12,6)
Paul [167]
C^n_k= \frac{n!}{(n-k)!c!} &#10;\\&#10;\\C^5_3= \frac{5!}{(5-3)!3!} = \frac{5!}{2!3!} = \frac{5\times4\times3}{3\times2\times1} =10&#10;\\&#10;\\C^8_8= \frac{8!}{(8-8)!8!} = \frac{8!}{0!8!} = \frac{8!}{1\times8!}=1&#10;\\&#10;\\C^{12}_6= \frac{12!}{(12-6)!6!} = \frac{12!}{6!6!} = \frac{12\times11\times10\times9\times8\times7}{6\times5\times4\times3\times2\times1} =\frac{11\times3\times4\times7}{1} =924
7 0
3 years ago
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