If you would like to know if (0, 3) is a solution to the equation y = x + 3, you can find this using the following step:
(0, 3) = (x, y)
x = 0
y = 3
y = x + 3
3 = 0 + 3
3 = 3
Result: (0, 3) is a solution to the equation y = x + 3.
Answer:
4w² + 82w + 400
Step-by-step explanation:
A polynomial is an expression consisting of variables and coefficients involving addition, subtraction, multiplication, and non-negative integer exponentiation of variables. A quadratic function is a polynomial of degree 2. The standard form of a quadratic equation is:
ax² + bx + c
The moat has width of w inch. Therefore:
combined width of castle and moat = 16 in + w in + w in = 16 + 2w in
combined length of castle and moat = 25 in + w in + w in = 25 + 2w in
The combined area = length * width = (16 + 2w)(25 + 2w) = 400 + 32w + 50w + 4w² = 4w² + 82w + 400
To solve for x, you need to isolate/get the variable "x" by itself in the formula:
ax + 5 = by - 10 Subtract 5 on both sides
ax + 5 - 5 = by - 10 - 5
ax = by - 15 Divide a on both sides to get x by itself
Your answer is B
You should first equate the powers by the volume you get the depth and then you need to find the rest by resulting breadth
Answer:
x=-1 2/5
Step-by-step explanation:
3(x-6)-8x=-2+5(2x+1)
3x-18-8x=-2+10x+5
-18-5x=10x+3
15x=-21
x=-7/5
x=-1 2/5
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