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earnstyle [38]
2 years ago
6

Can someone please tell me how to show work for this so I can get an answer I din't understand this!!! :,(

Mathematics
2 answers:
Margarita [4]2 years ago
4 0
The percent will be 89% because when you have a decimal that you have to change to a percent you have to move the point 2 times to the right

the fraction will be 89/100
pav-90 [236]2 years ago
3 0

Answer:

100% I looked it up and red an article

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Let F be the function given by f(x)= 2xe^x. Determine the interval(s) on which the graph is concave down.
Vika [28.1K]
Hello,

y=2xe^x
y'=2(e^x+xe^x)=2(x+1)e^x
y''=2(e^x+(x+1)e^x)=2(x+2)e^x

x     |-infinite   -2  0    +infinite
e^x | ++++++++++++++++++
x+2 |------------0 +++++++++++
y''    | -----------0 +++++++++++

y''<0 if x<-2
<span>The interval on which the graph is concave down is (-infinite -2[</span>

7 0
3 years ago
A cutting tool fails due to flank wear while machining. It is observed that the tool life at a cutting speed of 160 m/min is 5 m
Ahat [919]

Answer:

The answer is:

30 minutes.

Step-by-step explanation:

We are given the following information:

at 160 m/min, tool life = 5 min.

at 120 m/min, tool life = 17 min.

This means that as the speed reduced from 160 m/min to 120 m/min, the tool life increased from 5 min. to 17 min, hence the difference between the changes are:

speed = 160 - 120 = 40 m/min

tool life = 17 - 5 = 12 min.

Therefore, it can be concluded that a change of speed of 40 m/min, increases the tool life by 12 min.

40 m/min = 12 min

∴ 1 m/min = 12/40 min.

∴ 100 m/min = 12/40 × 100 = 0.3 × 100 =30 min.

8 0
2 years ago
Work for determining system for log base radical 2 of e​
igomit [66]

Answer:

4 ok bye

Thank you

Babye❤️

7 0
3 years ago
I NEEED HELP!!!!!<br> find the equation of the line containing (5, -2) and has a slope of -1
mojhsa [17]
I think it is y=-5x+12
8 0
2 years ago
Read 2 more answers
Apply the distributive property to create an equivalent expression. 6(5x minus 3)
SOVA2 [1]

Answer:

30x - 18

Step-by-step explanation:

6(5x - 3)

To distribute, multiply the outside number by everything inside the parentheses.

6 x 5x = 30x

6 x -3 = -18

30x - 18

I hope this helps!

3 0
2 years ago
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