Okay. So basically, the numbers are in scientific notation. They are in powers of 10 and there are charts on powers of ten online. What we have to do is convert it into it’s long form, and then do what we need to do. Here are the answers in case you’re not sure.
15. 77,700,000
16. 955,300
17. 371,200,000
18. 19,430,000,000
19. 6.5
20. 820
Answer: 0.21%
Step-by-step explanation: Please mark me brainlist
Step 1: We make the assumption that 950 is 100% since it is our output value.
Step 2: We next represent the value we seek with x
Step 3: From step 1, it follows that 100% = 950
Step 4: In the same vein x% = 2
Step 5: This gives us a pair of simple equations: 100% = 950(1)
x% = 2(2)
Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS
(left hand side) of both equations have the same unit (%); we have
100%/x% = 950/2
Step 7: Taking the inverse (or reciprocal) of both sides yields
x%/100%/ 2/950
---> 0.21%
A = √(15²-9²) = √(225-81) = √144 = 12
Answer:
all real numbers greater than or equal to 175
Step-by-step explanation:
