Answer:
The answer is 18.2
Step-by-step explanation:
17+24+19+17+14=91
91/5=18.2
Answer:
45 degree angle
Step-by-step explanation:
180-55-80=x
180- 135=x
45=x
Answer:
2(x^2)-1
Step-by-step explanation:
The square of a number is just the number squared. We don't know what the number is so I will just say it is x. So we have 2 times x^2. Then we have to minus 1 from that. So 2(x^2)-1.
Hope this helps! :D
9514 1404 393
Answer:
15
Step-by-step explanation:
When the smaller number is a divisor of the larger one, it is their highest common factor.
HCF(15, 45) = 15
Answer:
y= -2
x = 5
Step-by-step explanation:
Multiply the top equation by 2 to get
2x + 6y = -2
then subtract the bottom equation by the new equation to get
2x + 6y = -2
--------------------
2x + 2y = 6
which is
4y = -8
y = -2
If y = -2
Then plug -2 into y in the top equation to get x + 3(-2) = -1 and simplify which is
x + (-6) and add 6 to both sides to get x = -1 + 6
which is x = 5
