Answer: Telescopes use lenses or mirrors to collect and focus waves from the electromagnetic spectrum, including visible light, allowing us to look at celestial objects. By studying the electromagnetic waves given off by objects such as stars, galaxies, and black holes, astronomers can better understand the universe.
Step-by-step explanation:
Answer:I think you have to multiply them
Step-by-step explanation:
So 4 times 9= 36
Answer:
y=x-1
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Answer:
67/100
Step-by-step explanation:
67÷100 Divide the numbers
0.67 then move the decimal point to the right
6.7 *10 this will give you the fraction
