Answer:

Step-by-step explanation:
Whenever you are adding exponents that have the same base (in this case the base is 9), you simply add the exponents. The base will stay the same because you are just adding the exponents

So, your answer is 
Hope this helps!
Answer:
t=4.45
Step-by-step explanation:
9/10-2/5=
9/10-4/10=5/10=1/2
Given that ACE is an isosceles triangle, the measure of ∠CDB is: 55°
<h3>What is an Isosceles Triangle?</h3>
The two base angles of any isosceles triangle are always congruent to each other.
Therefore:
m∠CBD = m∠CDB
m∠CBD = 180° - 125° (supplementary angles)
m∠CBD = 55°
Therefore:
m∠CBD = m∠CDB = 55°
In summary, given that ACE is an isosceles triangle, the measure of ∠CDB is: 55°
Learn more about isosceles triangles on:
brainly.com/question/11884412
Answer:

Step-by-step explanation:


9a = 7
a= 7/9
Hope this helps ^-^