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ExtremeBDS [4]
3 years ago
14

THIS HOMEWORK IS SO HARD WALLAHI CAN SOMEONE HELP PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS

Mathematics
2 answers:
Lubov Fominskaja [6]3 years ago
8 0

Answer:

may be 5 I'm not a 100%sure

Law Incorporation [45]3 years ago
7 0
4.47 i’m pretty sure, round it if you need to
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A radioactive substance decays exponentially. A scientist begins with 190 milligrams of a radioactive
worty [1.4K]

Answer: 65.1 (mg)

Step-by-step explanation:

y=190*e^{-a*t}\\\\Calculate\ a:\\\\t=33,y=95(mg)\\\\190*e^{-a*33}=95\\\\e^{-a*33}=0.5\\\\-a*33=ln(0.5)\\\\a=\dfrac{ln(\dfrac{1}{2}) }{-33} \\\\a=0,02100... \approx{0.021}\\\\If\ t=51\ h, y=190*e^{-0.02100*51}=65.09167...\approx{65.1}

6 0
2 years ago
Please help.........................
astraxan [27]
<span>The diameter in centimeters (cm) of a human hair is about 0.0025 cm. In terms of scientific notation, it is written as 2.5 x 1</span><span>0^-3 cm</span>
7 0
3 years ago
Write the sum of 18 + 27 as the product of their GCF and another sum <br><br> (PLEASE HELP)
nikdorinn [45]
27
18
----
45

GCF of 45 = 15 
Here is a word document on Greatest Common Factors and how to solve it.

Download docx
4 0
3 years ago
You buy a car for $16,000. It will decrease in value by 10% each year. How much will it be worth after 4 years?
Mandarinka [93]

Answer: 9,600

Step-by-step explanation:

I could possibly did wrong but I shall explain this none the less. I first knew that 10% of 16,000 was 1,600. So then I just timed that by four getting 6,400. I then did 16,000-6,400 getting $9,600. Sorry if I’m wrong

7 0
3 years ago
Read 2 more answers
Find the inverse of y=1/2x+6. Show steps
soldi70 [24.7K]

Answer:

y = 2x - 12

Step-by-step explanation:

To find the inverse of a function, you switch x and y and solve for y.

x = 1/2 y + 6                 switch x and y

x - 6 = 1/2 y                  subtract 6 from both sides

2x - 12 = y                    multiply both sides by 2

7 0
3 years ago
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