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Minchanka [31]
3 years ago
8

Simplify the expression 7h+(-6.9d) - 18 + 5d - 3.2h. 7h + (-6.9d) - 18 + 5d - 3.2h =

Mathematics
2 answers:
Roman55 [17]3 years ago
8 0

Answer:

the answer is -1.9d+3.8h-18

KATRIN_1 [288]3 years ago
7 0
7h - 6.9d - 18 + 5d - 3.2h
= 7h - 3.2h -6.9d + 5d - 18
= 3.8h - 1.9d - 18
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Ksenya-84 [330]
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9 is greater than or equal to w, and 2 is less than or equal to w
Digiron [165]
Hope this can help you out some! :)

*There is a line under the greater than and less than sign is to show it can "greater than or equal to" or "less than or equal to"*

9 ≥ w and 2 ≤ w

*Since it says and, we solve both of them together.
If it said "OR", we would do the one side first then the other side*

9 ≥ w and 2 ≤ w

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3 years ago
Which statements are true given the histogram? Check all that apply.
vova2212 [387]

Answer:

(a)The histogram is symmetrical. FALSE  

(b) The histogram is evenly distributed.  FALSE

(c) The cluster from 4 p.m.-10 p.m. means that most of  the texts were sent in the afternoon and evening. TRUE  

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(e)The peak from 4 p.m.-6 p.m. means that the highest  number of texts was sent during this interval. TRUE

Step-by-step explanation:

(a)The histogram is symmetrical.  

FALSE, as the histogram has no line of symmetry.

(b) The histogram is evenly distributed.  

FALSE,  the histogram is not evenly distributed as there is no data in the  

10: AM to 3:00 PM slot.

(c) The cluster from 4 p.m.-10 p.m. means that most of  the texts were sent in the afternoon and evening.

TRUE, the data shows that the most texts were sent in afternoon and evening as it has the highest peaks in the given slot.

(d) More texts were sent from 6 p.m.-8 p.m. than from 8  p.m.-10 p.m.

The number of texts sent from  6 p.m.-8 p.m = 19

The number of texts sent  from 8  p.m.-10 p.m = 29

But, 19 < 29

Hence, the given statement is FALSE.

(e)The peak from 4 p.m.-6 p.m. means that the highest  number of texts was sent during this interval.  TRUE, the highest peak indicates the highest number of texts sent in the given interval.

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hodyreva [135]

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They are vertical angles meaning they both have the same angle thus you can set the two equations equal to each other

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