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masya89 [10]
2 years ago
11

1) (7 X 6) = 2 [{45 - 3(7 X 2 - 15 + 6)} + 4] ​

Mathematics
2 answers:
zhuklara [117]2 years ago
7 0

Answer:

42=2[{45-3(14-21)}+4]

42=2[{45-3×-6}+4]

42=2[{45-18}+4]

42=2[{27}+4]

42=2[27+4]

42=2×31

42=62

pogonyaev2 years ago
7 0

Answer:

1) (7 X 6) = 2 [{45 - 3(7 X 2 - 15 + 6)} + 4]

or,42=2[{45-3(14-15+6)}+4]

or,42=2[{45-3(14-21)}+4]

or,42=2[{45-3X(-7)}+4]

or,42=2[45+21}+4]

or,42=2X70

:42=140

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expeople1 [14]

*see attachment for the dot plot being referred to

Answer:

The data is symmetric and shows that he typically sent about 6 to 8 text messages per day

Step-by-step explanation:

The distribution of the data set on a dot plot can be said to be symmetric when most of the data points in the data are located or are concentrated at the center of the dot plot.

As we can observe from the given dot plot in the attachment, it shows that 6 to 8 text messages per day have more frequencies and are just right at the center of the dot plot. This shows the data is symmetric.

This also shows that Reza dents averagely 6 - 8 text messages per day. Reza can be said to have typically sent 6 - 8 text messages per day.

The rest statements about the dot plot are untrue.

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3 years ago
An insurance company crashed four cars of the same model at 5 miles per hour. The costs of repair for each of the four crashes w
Lana71 [14]

Answer:

Data :  ​$436​, ​$403​, ​$479​, and ​$249 .

Mean = \frac{\text{Sum of all observations }}{\text{total no. of observations}}

Mean = \frac{436​+403​+479​+249}{4}

Mean = 391.75

No. of terms n = 4 (even)

Median = \frac{\frac{n}{2}th +(\frac{n}{2} +1)th}{2}

Median = \frac{\frac{4}{2}th +(\frac{4}{2} +1)th}{2}

Median = \frac{2nd +(3)rd}{2}

Median = \frac{403+479}{2}

Median = 441

Mode is the value repeating the more no. of times

So, there is no mode.

Hence Mean is 391.75 , Median is 441 and no mode.

7 0
3 years ago
Please help will mark Brianlist
leonid [27]

Use proportions to help you figure this out. 2/20 = 1.5/x

If 20 is 10 times 2, then x should be 10 times 1.5. 

Therefore x = 15. 

The actual distance from the movie theater to the school is 15 miles.

Hope that helped you.

-<em>Rin:)</em>

5 0
3 years ago
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Ierofanga [76]
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3 years ago
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Can someone please help me with this math question involving transformation
kolezko [41]

Answer:

X+ 6

Y+ 1

Step-by-step explanation:

The image of point A  after the reflection along the x-axis the is A(-5,-2).

When this point was translated the new point became A(1, -1). The is means  the translation from (-5, -2) to (1, -1) can be given by:

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-5 + x = 1

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x + 6 and

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