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Aleksandr-060686 [28]
3 years ago
8

How many sides does the polygon have?

Mathematics
2 answers:
Natali [406]3 years ago
7 0
5 sides and 5 angles 
wolverine [178]3 years ago
6 0
A polygon has as many angles as it has sides.
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Find an expression for the nth term ( tn ) in each of the following sequences:
Alexandra [31]

Answer:

The expression for the nth term is Tn = 8n -7

Step-by-step explanation:

Here, we are to find an expression for the nth term of the sequence.

Mathematically, the nth term of an arithmetic sequence can be expressed as;

Tn = a + (n-1)d

for T2, the equation is

a + d = 9

for T4, the equation is

a + 3d = 25

we can substitute the equation of T2 into T4 but we first need to rewrite T4

a + d + 2d = 25

9 + 2d = 25

2d = 25 -9

2d = 16

d = 16/2

d = 8

now since a + d = 9

a = 9-d

a = 9-8

a = 1

So the expression for the nth term would be;

1 + (n-1)8

1 + 8n - 8

= 8n -8+1

= 8n -7

6 0
3 years ago
5. (07.02 MC) What is the value of y in the equation 2(2y - 16) = 0? (5 points) O 4 06 8 O O​
Deffense [45]

Answer:

8 mate.

Step-by-step explanation:

heavy metal is pretty brilliant.

8 0
3 years ago
Which is smaller half of 36 or one seventh of 42
lyudmila [28]
1/7 of 42 is smaller. 47/7= 6 < 18 = 36/2
4 0
3 years ago
Davin ran the marathon in 4 3/5 hours. Melba ran the marathon in 226 minutes. After she crossed the finish line, Melba waited fo
emmasim [6.3K]
(by far the most painful question all day) 226 mins = 3.77 hours 4 3/5 hours = 4.6 hours 4.6- 3.77 = 0.83 hours 0.83 hours = 49.8 mins = 2988 seconds.
7 0
3 years ago
Kay's Dessert Shop bakes cookies. The ratio of chocolate chip to sugar cookies baked is always 5 to 2. If she bakes 210 cookies
Gnom [1K]

Answer: 60

Step-by-step explanation:

Given

The ratio of chocolate chip to sugar cookies is 5:2

If she bakes 210 cookies in one day

Suppose she baked x amount of chocolate chips on that day

So, we can write

\Rightarrow x=\dfrac{2}{5+2}\times 210\\\\\Rightarrow x=\dfrac{2}{7}\times 210=60

There were 60 sugar cookies on that day

6 0
2 years ago
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