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Veronika [31]
3 years ago
8

Find the sum of the angle of each polygon

Mathematics
1 answer:
olganol [36]3 years ago
5 0

Answer:

The sum of interior angles of n side convex polygon: (n-2)*180°

The sum of exterior angles of n side convex polygon: 360°

Step-by-step explanation:

The sum of interior angles of n side convex polygon: (n-2)*180°

The sum of exterior angles of n side convex polygon: 360°

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Johanna has to solve the system of equations using substitution. She isolates x in the second equation. Which should be her next
olganol [36]

Answer: A) 3(10 - 5y) + 6y =12

Step-by-step explanation:

As per the question , the given system of linear equation :

3x+6y=12---(i)\\\\ x+5y=10---(ii)

Here , To solve the system of equations using substitution , Johanna isolates x in the second equation and writes

x=10-5y

As per the substitution method , the next step is to substitute the isolated value of 'x' in first equation , thus the next step will become

3(10-5y)+6y=12

Hence, the correct option is A) 3(10 - 5y) + 6y =12

6 0
3 years ago
How do you solve<br> 9/y = 12?<br> This is a two step equation
NARA [144]

Answer:

108

Step-by-step explanation:

12x9=108

108/9 = 12

8 0
2 years ago
Find the measure of x and y (NO LINKS OR REPORT)
Alchen [17]

Answer:

y= 35

x=55

Step-by-step explanation:

   

8 0
2 years ago
The difference between Lana's and her younger sister Lee's ages is 2. If Lee is 17 years old, how old is Lana? Let x represent L
tatyana61 [14]

Answer:

x = <u>19</u>

x - 17 = 2

2 + 17 = <u>19</u>

<em>Hope this helps!</em>

7 0
2 years ago
Felicia invested $25,000 into an account earning 3% interest compounded annually. She makes no other deposits into the account a
madam [21]
The formula is
A=p (1+r)^t
A future value?
P present value 25000
R interest rate 0.03
T time 9 years

A=25,000×(1+0.03)^(9)
A=32,619.33
7 0
3 years ago
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