Answer:
7.) 138.71
8.) 250
Step-by-step explanation:
Was this the answer you were looking for?
Answer:
<h3>The answer is option A</h3>
Step-by-step explanation:
To find an equation of a line in point slope form when given the slope and a point we use the formula

where
m is the slope
( x1 , y1) is the point
From the question
the slope is - 10
the point is (1,4)
So the equation of the line is
<h2>

</h2>
Hope this helps you
48 is the answer of your mathematics question on this site/app.
The answer is D I think
Given the 2 equations
2x + 5y = 21 → (1)
x + y = 3 → (2)
Rearrange (2) expressing y in terms of x, by subtracting x from both sides
y = 3 - x ← Substitute into (1)
2x + 5(3 - x) = 21 ← distribute and simplify left side
2x + 15 - 5x = 21
- 3x + 15 = 21 ( subtract 15 from both sides )
- 3x = 6 ( divide both sides by - 3 x = - 2 → D
X=-2