Answer:
QR = 19.4
Step-by-step explanation:
Use Pythagoras because p = 90°
Qr is hypotenuse
; (15.5)² + (11.7)²
= 377.14
√377.14
= 19.42009
= 19.42
= 19.4
hope it helps ☺️
Answer:
Kazan also SOS jz zks zj sj aka always zks. aiwow
Answer:
So, if a star is moving towards Earth, it appears to emit light that is shorter in wavelength compared to a source of light that isn't moving. ... In contrast, the light from a star moving away from us seems to shift towards longer wavelengths. As this is towards the red end of the spectrum, astronomers call it redshift.
hope this helps
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Answer:
A). 
B). y = 
Step-by-step explanation:
Question (1)
A). If every block of the given figure represents
,
Measure of x = 
= 1
Measure of y = 
= 
Since, 


Therefore, there is a decrease of
.
B). Measure of each box = 
y = 
x = 



y = 
Answer:
Step-by-step explanation:
1400