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TiliK225 [7]
3 years ago
9

Derek has a bird that weighs 4 pounds. Use the double line diagram below to help you determine approximately how many kilograms

this bird weighs.2 lines. The first line is labeled Pounds and has 6 marks, equally spaced apart, and every other mark labeled 3, 5, 7, respectively. The second line is labeled Kilograms and has 6 marks, equally spaced apart, and every other mark labeled, 1, 2, 3, respectively.
Mathematics
2 answers:
STatiana [176]3 years ago
5 0
The bird weighs 1.81437kg
Nastasia [14]3 years ago
5 0

Answer:

2 kilograms

Step-by-step explanation:

hope this helps :)))

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the half-life of strontium-90 is approximately 29 years. how much of a 500 g sample of strontium-90 will remain after 58 years​
Yuliya22 [10]

Answer:  125 g

<u>Step-by-step explanation:</u>

A = P_o\cdot e^{kt}\\\\\text{First, use the given information to find k:}\\\\\bullet A=\dfrac{1}{2}P_o\\\\\bullet k = unknown\\\\\bullet t=29\text{ years}\\\\\dfrac{1}{2}P_o=P_o\cdot e^{k(29)}\\\\\\\dfrac{1}{2}=e^{k(29)}\qquad divided\ both\ sides\ by\ P_o\\\\\\ln\bigg(\dfrac{1}{2}\bigg)=ln\bigg(e^{k(29)}\bigg)\qquad applied\ ln\ to\ both\ sides\\\\\\ln\bigg(\dfrac{1}{2}\bigg)=29k\qquad simplified-ln\ and\ e\ cancel\ out\\\\\\\dfrac{ln\bigg(\dfrac{1}{2}\bigg)}{29}=k\qquad divided\ 29\ from\ both\ sides\\\\\\-0.0239=k

\text{Now, use the following in the equation to solve for A:}\\\\\bullet A=unknown\\\bullet P_o=500\\\bullet k=-0.0239\\\bullet t=58\text{ years}\\\\A=500\cdot e^{(-0.0239)(58)}\\\\.\quad=500\cdot e^{-1.386}\\\\.\quad=125

8 0
3 years ago
Lainey is sliding down a water slide that is 376 feet long at a rate of 47 feet per second. How long will it take Lainey to trav
chubhunter [2.5K]

Answer:

8 seconds

Step-by-step explanation:

The length of the water slide is 376 feet and Lainey is sliding down at a rate of 47 feet per second. That is her speed.

Speed is given as distance divided by time or the time rate of displacement.

Therefore, time is:

Time = distance / speed

Therefore, the time it will take Lainey to get from the top to the bottom is:

Time = 376 / 47 = 8 seconds

It will take her 8 seconds to get from the top to the bottom.

8 0
2 years ago
Matthew scored a total of 168 points this basket ball season. He scored 147 of those points in the regular season, and the rest
Ksivusya [100]

\frac{147}{168}  =  \frac{x}{100}
147×100=14700
168×x=168x
14700÷168=87.5
100-87.5=12.5
Your answer is 12.5 percent of it were earned during the playoffs. Hope I was helpful.
6 0
3 years ago
The lines graphed below are perpendicular. The slope of the red line is 4. What is the slope of the green line?
Mashutka [201]
-1/4 the negative reciprocal of the slope of the red line
6 0
3 years ago
What is the answer to 5+14a=9a−5?
nikdorinn [45]

5+14a=9a-5

14a-9a=-5-5

5a=-10

a=2

8 0
3 years ago
Read 2 more answers
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