Answer:
Undefined
Explanation:
When a line is vertical like that, the slope is undefined. If it was horizontal, then it would be zero. Positive slopes go in an upward right direction. Negative slopes go in a downward left direction.
Answer:
i) = 23 °C
ii) = 4.4° C
Step-by-step explanation:
i) The temperature on the surface of the planet.
At the surface of the planet the height is Zero
Therefore, X = 0
Thus; using the equation, the temperature, y will be;
y = 23 - 5x
y = 23 - 5(0)
<u> = 23 °C</u>
ii) the temperature change for every kilometer from the surface,
From the equation;
y = 23 - 5x
we take, y to be 1
Therefore;
1 = 23 -5x , subtracting 23 on both sides we get
-22 = -5x
x = -22/-5
<u> = 4.4° C</u>
Answer: false
An arc that consists of endpoints that lie on the sides of an inscribed angle and all the points of the circle between the endpoints.
Answer:
<h3>
The cylinder's radius is <u> 2 </u> inches </h3><h3>
and it’s height is <u> 3 </u> inches.</h3>
Step-by-step explanation:
A diameter is two radiuses long, so the cylinder's radius is:
R = 4 in ÷ 2 = 2 in
The volume of cylinder is: V = πR²×H
Therefore:
12π = π×2²×H
12 = 4H
H = 3 in
Answer: -8x^3 + 6x^2
Step-by-step explanation:
Multipy each term in the parenthesis by -2x^2
-2<em>x</em>^2 x 4<em>x </em>- 2<em>x</em>^2 x (-3)
calculate the product
-8<em>x^</em>3 - 2<em>x</em>^2 x (-3)
multiplying two negatives equals a positive: (-)x(-)=(+)
-8<em>x</em>^3 + 2x^2 x 3
calculate the product
-8<em>x</em>^3 + 6x^2
