i know but yes i need to know it
Answer:
1) The slant height = 9.8 cm ⇒ (C)
2) The slant height = 11.4 cm ⇒ (D)
Step-by-step explanation:
1) ∵ The slant height of the cone = √[(radius)² + (height)²]
∵ Diameter = 8 cm
∴ Radius = 4 cm
∵ Height = 9 cm
∴ Slant height = √(4² + 9²) = √97 = 9.8 cm ⇒ (C)
2) ∵ The slant height of the cone = √[(radius)² + (height)²]
∵ Diameter = 18 cm
∴ Radius = 9 cm
∵ Height = 7 cm
∴ Slant height = √(9² + 7²) = √130 = 11.4 cm ⇒ (D)
Answer:
k12
Step-by-step explanation:

Convert to slope-intercept form, y = mx + b.

Subtract 2x to both sides:

Divide 3 to both sides:

Now it's in slope intercept form, y = mx + b where 'm' is the slope. So the slope here is -2/3, which is Negative.

This is already in slope intercept form. So the slope here is 3, which is Positive.
For #3 and #4, take any two points from the table and plug them into the slope formula.

Let's take (0, 7) and (1, 5).
x1 y1 x2 y2

Subtract:

Divide:

So the slope is negative.
For #4, let's take (2, -8) and (3, -7)
x1 y1 x2 y2

Subtract:

Divide:

So the slope is positive.