Answer:
y = - x - 4
Step-by-step explanation:
A line perpendicular to the line: y = x + 5
must have a slope that is the "opposite of the reciprocal" of the slope of the given line. Then the slope of the perpendicular line must be "-1".
Now that we know the slope of the perpendicular line, we use the point (-7, 3) to complete the equation of the line:
y = -1 x + b
3 = -1 (-7) + b
then we solve for "b":
3 = 7 + b
3 - 7 = b
b = -4
Now we can write the total equation of the perpendicular line in slope-intercept form as:
y = - x - 4
<span>(2.2 × 1012) + (1.7 × 109) = 2411.7</span>
Hopes this helps:
Answer: x = 0 the equal sign has to have a line going through it.
The denominator must not equal 0. So the domain is x = 0 the equal sign has to have a line going through it.
Answer:
Perimeter: 2(x+3) + 2(x+2)
Step-by-step explanation:
Answer:
$1.5
Step-by-step explanation:
From the given problem, we would set up two equations to solve for the cost of each slice of pizza;
Let the cost of a slice of pizza = P
Let the cost of a drink = D
50 slices of pizza and 100 drinks for $275
50p + 100D = 275 ----- i
100 slices of pizza and 60 drinks will sell for $270
100p + 60D = 270 ----- ii
The two equations:
50p + 100D = 275 ----- i
100p + 60D = 270 ----- ii
Multiply equation i by 3 and equation ii by 5
150p + 300D = 825 ----iii
500p + 300D = 1350 ---- iv
Now,
Subtract iii from iv;
350p = 525
p = $1.5