Answer:
? = 13
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
?² = 5² + 12² = 25 + 144 = 169 ( take the square root of both sides )
? = = 13
Hoi!
This is false.
The rate of change of x is 3, and the rate of change of y is 9.
Step-by-step explanation:
<1 = 90 - 32
= 58
bd is a traversal to parallel line ab and dc
<1 = <bdc ( alternate angles) = 58
in right triangle edc
90 - 58 = <3 = 32
<2 = 58
we know angle RLP= 100⁰
also
angle RLP+ angle RLB=180⁰(Linear pair)
=>100⁰+angleRLB= 180⁰
=> angle RLB=80⁰
since BR and LR are equal, angle RBL and angle RLB are equal
therefore angle RBL is also equal to 80⁰
using angle sum property of triangles we know that the sum of all angles in a triangle is equal to 180⁰
=>angle BRL+angle RBL+angle RLB= 180⁰
=> angle BRL+80⁰+80⁰=180⁰
=>angle BRL = 180⁰-160⁰
=>angle BRL= 20⁰
I'm sorry it took me some time I'm a slow typer
Row 4
Explanation
Row 1 - 4+2+2+3+3 = 14 / 5 = 2.8
Row 2 - 3+3+4+3+2 = 15 / 5 = 3
Row 3 - 2+4+3+4+3 = 16 / 5 = 3.2
Row 4 - 3+4+4+7+3 = 21 / 5 = 4.2