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miv72 [106K]
3 years ago
10

Which one is it I’m so confused?

Mathematics
2 answers:
Delicious77 [7]3 years ago
7 0

Answer:

perpendicular bisector

Step-by-step explanation:

Since DE = EF then EG bisects DF

Since ∠DEG = 90° then EG is perpendicular to DF

Hence EG is the perpendicular bisector of DF

Ad libitum [116K]3 years ago
5 0

Answer:

I think its A.) Angle Bisector , I hope this helped!!

Step-by-step explanation:

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Just took the test and got the the correct answer *\(♡°▽°♡)/*

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3 years ago
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A radioactive substance decreases in the amount of grams by one-third each year. If the starting amount of the
katovenus [111]

Answer:

The sequence is geometric. The recursive formula is a_{n}=2/3a_{n-1}

Step-by-step explanation:

In order to solve this problem, you have to calculate the amount of the substance left after the end of each year to obtain a sequence and then you have to determine if the sequence is arithmetic or geometric.

The substance decreases by one-third each year, therefore:

After 1 year:

1452-\frac{1}{3}(1452)

Using 1452 as a common factor and solving the fraction:

1452(1-\frac{1}{3})=1452(\frac{2}{3})=968

You can notice that in general, after each year the amount of grams is the initial amount of the year multiplied by 2/3

After 2 years:

968(\frac{2}{3})=\frac{1936}{3}

After 3 years:

\frac{1936}{3}(\frac{2}{3})=\frac{3872}{9}

The sequence is:

1452,968,1936/3,3872/9....

In order to determine if the sequence is geometric, you have to calculate the ratio of two consecutive terms and see if the ratio is the same for all two consecutive terms. The ratio is obtained by dividing a term by the previous term.

The sequence is arithmetic if the difference of two consecutive terms is the same for all two consecutive terms.

-Calculating the ratio:

For the first and second terms:

968/1452=2/3

For the second and third terms:

1936/3 ÷ 968 = 2/3

In conclussion, the sequence is geometric because the ratio is common.

The recursive formula of a geometric sequence is given by:

a_{n}=ra_{n-1}

where an is the nth term, r is the common ratio and an-1 is the previous term.

In this case, r=2/3

7 0
3 years ago
CODES Use the following information to solve. A bank gives each new customer a 4-digit code number which allows the new customer
MaRussiya [10]
<h3>Answer:  D) 1/24</h3>

=============================================================

Explanation:

There are 4 digits to pick from and 4 slots to fill, so there are 4! = 4*3*2*1 = 24 different codes possible.

If we want the code to start with 371, then that must mean 5 is the only thing left for that fourth slot. In short, there's only one code that starts with 371 and that code is 3715

We have one code we want (3715) out of 24 total, which is why the answer is 1/24 (choice D)

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3 years ago
A grant for students who intend to become teachers is known as the.
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Answer:

A TEACH GRANT

Step-by-step explanation:

It stands for Teacher Education Assistance for College and Higher Education

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Answer:

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Step-by-step explanation:

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