Answer:
1
Step-by-step explanation:
Using the rule of logarithms
log x + log y ⇔ log(xy)
b = 1
Hence
log 5 + log 2 = log(5 × 2) = log 10 = 1
Answer:
0.7
Step-by-step explanation:
The second one is Y=-2.33
i dont know the first one sorry
Answer:
<h2>x = 1</h2>
Step-by-step explanation:
Look a t the picture.
The triangles on the picture are similar.
Therefore the sides are in proportion:
<em>cross multiply</em>

<em>divide both sides by 40</em>
