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2 years ago

Ln x=-3 How to solve

Mathematics

2 answers:

Natasha2012 [34]2 years ago

6 0

Answer: x=0.050

Step-by-step explanation:

BlackZzzverrR [31]2 years ago

3 0

Answer is 0.50 for Ln

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43046721 as a single power of 9

Levart [38]

Answer:

$9^8$

Step-by-step explanation:

$9^8=43046721$

$ln(9^x)=xln(9)$

so we search $x=ln(43046721)/ln(9)$

hope this helps

4 0

2 years ago

Read 2 more answers

a solid pyramid with a square base with side 12 cm and height 25 cm is made of metal. The metal is melted to form spherical ball

dangina [55]

Answer:

3 pyramids.

Step-by-step explanation:

The volume of one pyramid is 1/3 * b^2 * h

= 1/3 * 12^2 * 25

= 1200 cm^3.

The volume of one ball bearing = 4/3 * π * 0.7^3

= 1.43676 cm^3.

Therefore the volume of 2490 ball bearings = 2490 * 1 .43676

= 3577.53 cm^3.

So we need 3577.53 / 1200 = 2.98 = 3 pyramids.

7 0

2 years ago

A real estate company is interested in the ages of home buyers. They examined the ages of thousands of home buyers and found tha

egoroff_w [7]

Answer:

Between 21 years and 75 years

Step-by-step explanation:

Given that a real estate company is interested in the ages of home buyers. They examined the ages of thousands of home buyers and found that the mean age was 48 years old, with a standard deviation of 9 years.

X the ages of home buyers is N(48, 9)

a) $30\leq x\leq 66\\|x-48|\leq 18\\|x-48|\leq 2\sigma$

Hence using Cheby chev inequality

$P(|x-48|\leq 2\sigma)\geq 1-\frac{1}{2^2} \\=0.75$

b) $25.5\leq x\leq 70.5\\|x-48|\leq 22.5\\|x-48|\leq 1.5\sigma$

$P(|x-48|\leq 1.5\sigma)\geq 1-\frac{1}{1.5^2} \\=0.556$

c) Using normal distribution we have

$P(|x-48|\leq 2\sigma)=0.95$

d) z value is 2.97

Hence x lies between

$(48-9*2.97, 49+9*2.97)\\=(21.27,74.73)$

Between 21 years and 75 years

4 0

3 years ago

Find the values of I and y. Write your answer in simplest form.<br> Will mark branliest, help

galina1969 [7]

Answer:

sin30=p/h

1/2 =x/12

x=12/2=6...answer

sin60=p/h

√3/2=y/12

y=√3×12/2=6√3answer

6 0

2 years ago

Which of the folowing pairs of circles have i as a common internal target select all that apply

MakcuM [25]

Answer: pic of the question?

Step-by-step explanation:

6 0

3 years ago