Answer:
9. 70° 10. 90° 11. 110°
Step-by-step explanation:
12. 25°
13. 95°
14. 20°
I'm using examples to show
9
a) Let,
First odd number = 5
Second consecutive odd number = 7
Sum = 5 + 7 = 12. Which is divisible by 4
b) Let the numbers be same as above
(5)² + (7)²
25 + 49
74. Which is not divisible by 4
10) Maisy is wrong because 2 has no common factor except 1 and 2. And we know that 2 is an even number and it is also a prime number
11)
a) Let,
First integer = 5
Second integer = 7
Sum = 5 + 7 = 12.
Since the sum is even but the integers are odd.
b) Let,
Integer = 8
(8)² = 64. which is divisible by 4 and 8 is also divisible by 4
12)
Let,
a = -8
b = 8
a² = (-8)² = 64
b² = (8)² = 64
a² = b²
But, a ≠ b
1. 6=a/4+2
6-2=a/4
4=a/4
4(4)=a
a=16
2. -6+x/4=-5
x/4=-5+6
x/4=1
x=4
3. 9x-7=-7
9x=-7+7
9x=0
x=0
4. 0=4+n/5
-4=n/5
-4(5)=n
n=-20
5. -4=r/20-5
-4+5=r/20
1=r/20
r=20
6. -1=(5+x)/6
-1(6)=5+x
-6=5+x
x=-11
8. 2(n+5)=-2
n+5=-1
n=-6
9. -9x+1=-80
-9x=-81
x=9
10. -6=n/2-10
4=n/2
8=n
Answer:
pls refer to given attachemnt
The number in expanded notation is 4,000,000+300,000+5,000+10+2.