1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vaieri [72.5K]
3 years ago
10

Solve for z. ln63=lnz+ln7 Enter your answer in the box.

Mathematics
2 answers:
Bumek [7]3 years ago
7 0

Answer:

<em>z </em>= 9

Step-by-step explanation:

ln 63 = ln z + ln 7

We have the formula:

ln A + ln B = ln AB

So, ln 63 = ln 7<em>z</em>

7<em>z </em>= 63

Divide both sides by 7.

\frac{7z}{7}=\frac{63}{7}

<em>z</em> = 9

weqwewe [10]3 years ago
7 0

Answer:

<u>ln(56 + -1z) = 0</u>

Step-by-step explanation:

Simplifying

ln(63) = ln(z) + ln(7)

Reorder the terms for easier multiplication:

63ln = ln(z) + ln(7)

Multiply ln * z

63ln = lnz + ln(7)

Reorder the terms for easier multiplication:

63ln = lnz + 7ln

Reorder the terms:

63ln = 7ln + lnz

Solving

63ln = 7ln + lnz

Solving for variable 'l'.

Move all terms containing l to the left, all other terms to the right.

Add '-7ln' to each side of the equation.

63ln + -7ln = 7ln + -7ln + lnz

Combine like terms: 63ln + -7ln = 56ln

56ln = 7ln + -7ln + lnz

Combine like terms: 7ln + -7ln = 0

56ln = 0 + lnz

56ln = lnz

Add '-1lnz' to each side of the equation.

56ln + -1lnz = lnz + -1lnz

Combine like terms: lnz + -1lnz = 0

56ln + -1lnz = 0

Factor out the Greatest Common Factor (GCF), 'ln'.

<u>ln(56 + -1z) = 0</u>



Could be wrong. If it is, let me know. Thanks! Have a good rest of your day! :)

You might be interested in
Which expression(s) represent(s)®3 times the sum of sand 4"?
Rus_ich [418]
Answer is : 3x+4 the second one
4 0
2 years ago
Please help! will give brainliest for the best helper! or first to answer aka meaning first to help :)
AleksAgata [21]

Answer:

angle 2 = 37º

Step-by-step explanation:

When two lines intersect they make vertical angles, which are angles directly across from another. Vertical angles are always congruent.

4 0
3 years ago
Can you do 2 and 3 please and tell me how you got your answer?
alexandr402 [8]

Answer:

2. Sorry, I don't how to put that into words, because i'm trying to use calculators, then figure out how they got their answer.

3. C

Step-by-step explanation:

2. ^

3. to get the difference between two numbers, (100 and 50, for example,) you must just simply have them minus each other, like simple math. 100 - 50 = 50.

So your difference between the number 100, and the number 50, are 50.

7 0
3 years ago
c. Debbie and Jan are both in the 28% tax bracket. Since the interest is deductible, how much would Debbie and Jan each save in
alisha [4.7K]

Step-by-step explanation:

Let's assume Debbie paid $1700 in interest, while Jan paid $9000.

Debbie Saves = $1700* 0.28

Jan Saves = $9000 * 0.28

Debbie Saves $476 in taxes

Jan Saves $2520 in taxes

7 0
3 years ago
Find the perimeter of the following shapes.
DerKrebs [107]

Answer:

4. (a) = 12 m

   (b) = 27 cm

   (c) = 24 mm

   (d) = 18 km

   (e) = 10 m

   (f) = 36 cm

Step-by-step explanation:

Perimeter is sum the distance round a figure.

if a shape has those, they signify that the shape has two side that are equal

a)  4 + 4 + 2 + 2 = 12. The top part is equal to the bottom part signified by those two lines. And the left is equal to the right .

b)  10 + 10 + 7 = 27

c) 5 + 5 + 8 + 6 = 24

d)  3 + 3 + 6 + 6 = 18

e) 2.5 + 2.5 + 2.5 + 2.5 = 10

f) 12 + 7 + 7 + 5 + 5 = 36

If you need any clarification or more explanation pls do mention in the comment section. i would like to help more.

Hope this helps and if it does pls mark as branliest answer thx.

6 0
3 years ago
Other questions:
  • Help!!Need help please help me
    9·1 answer
  • A model of a skyscraper is 1.6 in long, 2.8 in wide, and 11.2 in high. The scale factor is 8 in : 250 ft. What are the actual di
    8·1 answer
  • 100 points. solve the equation and check the solution
    11·1 answer
  • Let u=  (-1,3) and w =(2,4) Find the resulting vector of 2u-4w  in component form..
    5·2 answers
  • Simplify the expression.
    9·2 answers
  • Anna babysits on the weekends she charges $7 per hour last weekend she made a total of $63 how many hours did she babysit let h
    12·1 answer
  • Our school is selling t-shirts and sweatshirts as a fundraiser . One student buys 2 t-shirts and 2 sweatshirts for $26 . Another
    9·1 answer
  • The average distance from Earth to the Sun is 92.95 million miles. The actual distance varies from the average by up to 1.55 mil
    11·1 answer
  • Direction: Given the following scatter plot, determine if there is a relationship occurred. HANDWRITTEN.
    5·1 answer
  • 1/3 x + 4 = x − 2 solve for x
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!