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oksano4ka [1.4K]
3 years ago
14

Emmanuel use the calculations belongs to find a product of the given fractions in which Steps did his first error occurred

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
7 0

Answer:

Emanuel made huis mistake in first step and step 1 is incorrect.

Step-by-step explanation:

The given expression is

(\frac{3}{5})(\frac{4}{9})(-\frac{1}{2})(

5

3

)(

9

4

)(−

2

1

)

It can be written as

\frac{3}{5})(\frac{4}{9})(\frac{-1}{2}

5

3

)(

9

4

)(

2

−1

Step 1: (\frac{(3)(4)(-1)}{(5)(9)(2)})(

(5)(9)(2)

(3)(4)(−1)

)

Emanuel used negative sign with both numbers 1 and 2. Therefore the first step of Emanuel is incorrect.

Step 2: \frac{-12}{90}

90

−12

Step 3: \frac{-2}{15}

15

−2

Therefore Emanuel made huis mistake in first step and step 1 is incorrect

Step-by-step explanation:

all the steps are given below

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There is a post every 3.5 ft.
If you divide 210 ft by 3.5 ft, you get the number of spaces between posts.
(210 ft)/(3.5 ft) = 60
The fence starts with a post. Then there is 3.5 ft of fencing. Then there is another post. Then there is another 3.5 ft of fencing followed by a post. In total there are 61 posts.

Here's another way of thinking of why you end up with 60 posts.
For each 3.5 ft of fencing, you place a post at the end of the fencing.
Since there are 60 3.5-ft-long pieces of fencing, there will be 60 posts, one at the end of each piece of fencing. The first thing that is done is to put the initial post before any fencing is put up. The first post plus 60 more posts add up to 61 posts.

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3 years ago
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3 years ago
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Pie
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3 years ago
–2z − 7 need this done now
Debora [2.8K]

Answer:

the value of the z is -3.5

Step-by-step explanation:

According to the question, the following information is given

-2z - 7

Based on the above information

We assume that we have to determine the z value

so

-2z - 7 = 0

-2z = 7

z = 7 ÷ -2

= -3.5

Hence, the value of the z is -3.5

The same is to be considered and relevant too

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Answer:

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Step-by-step explanation:

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