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
laila [671]
3 years ago
8

Sold the equation. Round to the nearest hundredth. 17 ·

id="TexFormula1" title="1.8^{-x+7} = 5" alt="1.8^{-x+7} = 5" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
svetlana [45]3 years ago
4 0

Answer:

Final answer is approx x=4.26.

Step-by-step explanation:

Given equation is 1.8^{-x+7} = 5

Now we need to solve equation 1.8^{-x+7} = 5 and round to the nearest hundredth.

1.8^{-x+7} = 5

\log(1.8^{-x+7}) = \log(5)

(-x+7)\log(1.8) = \log(5)

(-x+7) = \frac{\log(5)}{\log(1.8)}

(-x+7) = \frac{0.698970004336}{0.255272505103}

-x+7 = 2.73813274192

-x = 2.73813274192-7

-x =−4.26186725808

x =4.26186725808

Round to the nearest hundredth.

Hence final answer is approx x=4.26.

You might be interested in
Earl needs to fill up juice cups for his little brothers birthday party. There are 25 juice cups and each holds 12 fluid ounces.
Blizzard [7]
It would take 3 bottles. 25 twelve-ounce cups equals out to 300 ounces. There is only 128 ounces in a gallon. 
8 0
3 years ago
Read 2 more answers
Write a linear function f with the values f(2)=4 and f(−7)=9. A function is f(x)=
ale4655 [162]

Answer:

f(x) = -5/9 x + 5 1/9

Step-by-step explanation:

f(2)=4 and f(−7)=9 means the line pass through (2,4) and (- 7,9)

f(x) = mx + b

m = (y-y') / (x-x') = (9 - 4) / (- 7 - 2) = - 5/9

for (2,4) : b = f(x) - mx = y - mx = 4 - (- 5/9) x 2 = 4 + 10/9 = 46/9 = 5 1/9

f(x) = -5/9 x + 5 1/9

check for (-7, 9)    f(-7) = (-5/9) * (-7) + 5 1/9 = 35/9 + 46/9 = 81/9 = 9

5 0
4 years ago
Hi my sister is at school so I'm on her account
svlad2 [7]
Yo answer to yo question is d
5 0
3 years ago
What percentage is 15 out of 17?
Ket [755]
88.23%

Simply plug 15/17 into you calculator 

and it will give you a decimal, in this case it should be .88235294...

simply move the decimal back to placements and you should have

88.235294... thats still a lot of numbers so just reduce it to 2 places after the decimal and add a percent sign

88.23%

and your done :) this works for any similar problems

I hope this helps

8 0
3 years ago
Read 2 more answers
Joe is responsible for reserving hotel rooms for a company trip. His company changes plans and increases how many people are goi
AURORKA [14]

Answer:

<h2>He is going to pay 40*900= $36000 for the reservation</h2>

Step-by-step explanation:

Step one:

We are told that they need at least 50 total rooms.

Joe has paid for 16 rooms since Joe can only reserve rooms in block, and a block has 8 rooms, then Joe has paid for 2 blocks.

There is a deficit of 50-16= 34rooms

Required

The Number of blocks Joe need to reserve in addition is 34/8

=4.25

The blocks can not be in decimal, so we need to approximate, which is 5 blocks

Therefore Joe is going to reserve 5*8= 40 rooms

<u>He is going to pay 40*900= $36000 for the reservation</u>

4 0
3 years ago
Other questions:
  • julian is mixing drops of food coloring to create green frosting for a cake he uses 18 drops of yellow dye and 12 drops of blue
    8·1 answer
  • What is the answer for 12 over 75 (fraction)
    7·1 answer
  • When x=9, which number is closest to the value of y on the line of best fit in the graph below?
    14·1 answer
  • Rewrite with only sin x and cos x<br><br> Cos 2x*l+sin x
    13·1 answer
  • Convert the decimal 0.92 to a fraction.<br>83/9<br>83/90<br>83/100<br>92/99​
    13·1 answer
  • Petrov ran 7 laps around a track.Each lap around the track is a distance of 1/4 mile. What is the total distance Petrov ran in f
    8·1 answer
  • Can you please answer the question?
    7·1 answer
  • May and Ellie collected data for 75 graphs, recording whether the graphs were increasing or decreasing, and whether or not they
    7·2 answers
  • Ayla has 104 stuffed animals in her room. The ratio of teddy bears to cats is 5 to 3. How many teddy bears does she have?
    14·1 answer
  • A cylindrical tin has a radius of 3 cm. What is the shortes length of a string that can be wound once round the curved surface o
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!