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vodka [1.7K]
3 years ago
10

A radioactive substance has a decay rate of 0.064 per minute. How many grams of a 150 gram sample will remain

Mathematics
1 answer:
Tju [1.3M]3 years ago
4 0

Answer:

8.3

Step-by-step explanation:

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The slope of the trend line is 15. What does that mean in regard to the data of the scatterplot? Check all that apply.
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i just answered it and got it correct

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A subtract 3g^2 + 5g + 2g - 2 from 6g^2 + 6 - 4g + 2g^2
vodka [1.7K]

1. Collect like terms.

(6g^2+2g^2-3g^2)+(6-2)+(-4g+5g+2g)

2. Simplify

5g^2+4+3g

Sorry i'm hoping that helps, i'm on a school computer i cant see the picture you attached but i did 6g^2 + 6 - 4g + 2g^2 - 3g^2 + 5g + 2g - 2 because that's what it seemed you were asking.

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2 years ago
Solve the system y = 2x + 6 and 3y = 6x + 18 by using graph paper or graphing technology. What is the solution to the system?
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Step-by-step explanation:

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The proportion of students at a college who have GPA higher than 3.5 is 19%. a. You take repeated random samples of size 25 from
melomori [17]

Answer:

\mu_{\hat{p}}=0.19

\sigma_{\hat{p}}=0.0785

Step-by-step explanation:

We know that the mean and the standard error of the sampling distribution of the sample proportions will be :-

\mu_{\hat{p}}=p

\sigma_{\hat{p}}=\sqrt{\dfrac{p(1-p)}{n}}

, where p=population proportion and n= sample size.

Given : The proportion of students at a college who have GPA higher than 3.5 is 19%.

i.e. p= 19%=0.19

The for sample size n= 25

The mean and the standard error of the sampling distribution of the sample proportions will be :-

\mu_{\hat{p}}=0.19

\sigma_{\hat{p}}=\sqrt{\dfrac{0.19(1-0.19)}{25}}\\\\=\sqrt{0.006156}=0.0784601809837\approx0.0785

Hence , the mean and the standard error of the sampling distribution of the sample proportions :

\mu_{\hat{p}}=0.19

\sigma_{\hat{p}}=0.0785

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3 years ago
The amount of money Sarah earns per week is modeled by the function W below where h
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416

Step-by-step explanation:

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