Since a polynomial is where we have like terms such as (1 x 10²) and (4 x 10²), we can add these up using the distributive property to get (5 x 10²) but still keep the 10². For example, it's similar to if we had 2x²+3x²=5x². The x² is still there, but we add up the 2 and 3. Similarly, we can add these up for 10^1 and 10^0

4 0

3 years ago

Find the missing side of the angle. Need help, thank you!!

Alex787 [66]

Answer:

sqrt239

Step-by-step explanation:

Using the pythagoream thereom, we know that a^2+b^2=c^2.

so x^2+17=256

That makes x the square root of 239.

4 0

3 years ago

Solve the following equation system by graphing X-Y=4 X+Y=2 What is the solution?

AfilCa [17]

X-Y=4,
X+Y=2
-------------add
2x = 6
x = 3

X - Y =4
3 - Y = 4
Y = 3 - 4
Y = -1

solution (3 , -1)

4 0

3 years ago

How to find the sum of 2+4+6....+40?

grandymaker [24]

Answer 420.
a, is the first term. d is difference.
Since this is an arithmetic progression, I use this formula.
Un = nth term
Sn = sum of terms.
First find the number of terms, which is 20.
Then use the second formula to find the sum.

3 0

3 years ago