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valentina_108 [34]
3 years ago
14

What is the value of e^ln7 x1 7e 7x 7

Mathematics
2 answers:
miskamm [114]3 years ago
8 0

Answer: C on edg

Step-by-step explanation:

sweet-ann [11.9K]3 years ago
3 0

Answer:

Both answer shown

IF it is

e^{ln 7x}= 7x

OR

IF it is

e^{ln 7}\times 1}=7

Step-by-step explanation:

Given: Little confusion is in the question

e^ln7 x1

i.e e^{ln 7x}

To Find:

e^{ln 7x}= ?

Solution:

We know Logarithmic identity as

\ln e = 1

\ln e^{x} = x

Similarly,

e^{\ln x}=x

IF it is

e^{ln 7x}= 7x

OR

IF it is

e^{ln 7}\times 1}=7\times 1=7

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It takes 54 minutes for 4 people to paint 6 walls. How many minuets does it take 6 people to paint 7 walls?
earnstyle [38]

It takes 42 minutes for 6 people to paint 7 walls

<em><u>Solution:</u></em>

It takes 54 minutes for 4 people to paint 6 walls

To find: Minutes required for 6 people to paint 7 walls

If M_1 men can do W_1 work in D_1 days working H_1 hours per day and M_2 men can do W_2 work in D_2 days working H_2 hours per day, then

\frac{M_1D_1H_1}{W_1} = \frac{M_2D_2H_2}{W_2}

M = Number of men

D = Number of days

H = Number of hours per day

W = Amount of work

Here in this sum,

<em><u>54 minutes for 4 people to paint 6 walls</u></em>

H_1 = 54 minutes ; M_1 = 4 people ; W_1 = 6 walls

<em><u>Minutes required for 6 people to paint 7 walls</u></em>

H_2 = ? ; M_2 = 6 people ; W_2 = 7 walls

<em><u>Substituting the values in formula, we get</u></em>

\frac{54 \times 4}{6} = \frac{H_2 \times 6}{7}\\\\9 \times 4 = \frac{H_2 \times 6}{7}\\\\H_2 = \frac{36 \times 7}{6}\\\\H_2 = 42

Thus it takes 42 minutes for 6 people to paint 7 walls

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Answer:

D

Step-by-step explanation:

there are 3 ft in a yard, so to find how many yards you multiply 3 time 12, which equals 36.

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Step-by-step explanation:

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If AB=40mm and BC=35mm

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