David has a rectangle and a right triangle. The length of the rectangle is 5 more than its width, w.
The length of the shorter leg of the triangle is equal to the rectangle's
width.
The length of the longer leg of the triangle is twice the length of the
rectangle.

Which function, f(w), represents the combined area of the rectangle and the
triangle?
A f(w) = 2w2 + 10w
B. f(w) = 3w2 + 15w
С f(w) = W2 + 10w + 25
D f(w) = W2 + 15W + 50

B

Step-by-step explanation:

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how long did the flood last

step-by-step explanation:

then i will answer

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form