Answer:

Step-by-step explanation:
=> 
Using the distributive property
=> 
Answer:
I believe its 6 based on the midsegment theorem
Step-by-step explanation:
Answer:
i know the answer for question 8 & 9
8) Volume is the amount of space a 3D shape takes up.
A cubic cm block takes up 1 cubic cm. This is written as 1 cm³.
You can work out the volume of a shape by multiplying height × width × depth.
If the shape is made of cubic cm blocks, you can count the cubes to find the shape's volume.
9) The face or surface of a solid on its sides. That is, any face or surface that is not a base. See also. Lateral surface area, prism, pyramid, cone, cylinder.
- i hope this helps
Answer:
See Below.
Step-by-step explanation:
We want to verify the equation:

To start, we can multiply the fraction by (1 - sin(θ)). This yields:

Simplify. The denominator uses the difference of two squares pattern:

Recall that sin²(θ) + cos²(θ) = 1. Hence, cos²(θ) = 1 - sin²(θ). Substitute:

Split into two separate fractions:

Rewrite the two fractions:

By definition, 1 / cos(θ) = sec(θ) and sin(θ)/cos(θ) = tan(θ). Hence:

Hence verified.