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malfutka [58]
3 years ago
7

Log19–3x = log19(x + 5)

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
5 0

Answer:

x = -5/4  if  this is log base 19,  or x = - 4.75 if these are common logs.

Step-by-step explanation:

log19–3x = log19(x + 5)

is the logarithm with base 19 ?

you could remove the log operation..

-3x =  (x + 5)

if it was the case that the logarithm was of base 19.

then

solve for x:

-4x = 5

x = -5/4

or if it was the case that this is a Common Logarithm then:

log  (19- 3x)  = log (19*(x + 5) )

19 - 3x = 19*(x + 5)

19 -3x = 19x + 95

-76 = 16x

x = -4.75

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Solve 3[-x + (2 x + 1)2 = x - 1<br><br><br> X=?
Anna007 [38]

Answer:

x=−7/8

Step-by-step explanation:

3 0
3 years ago
If the cos of angle x is 8 over 17 and the triangle was dilated to be two times as big as the original, what would be the value
Viktor [21]

Answer:

the answer is 8/17

Step-by-step explanation:

i got it right on the quiz

6 0
3 years ago
If a car dealership buy as car for $9000, and wants to make a 45% profit, how much do they need to sell the car for? ​
Degger [83]

Answer:

A car dealership needs $13050 to sell the car to earn the 45% profit if a car dealership buys a car for $9000.

Step-by-step explanation:

Car cost = $9000

Profit percentage = 45% profit

Thus,

Profit amount = 45% of 9000

                       = 45/100 × 9000

                       = 0.45 × 9000

                       = $4050

In order to determine how much a car dealership needs to sell the car to earn the 45% profit, all we need is to add the profit amount i.e. $4050, and the car cost i.e. $9000.

i.e.

Car cost + Profit amount = $9000 + $4050

                                         = $13050

Therefore, a car dealership needs $13050 to sell the car to earn the 45% profit if a car dealership buys s car for $9000.

6 0
3 years ago
Hal has a steel barrel with a diameter of 6 feet that can be filled to a depth of 4.6 feet with oil. What is the volume of the b
scoray [572]

Answer:

129.996 cubic feet

Step-by-step explanation:

Assuming that the barrel is a perfect cylinder, we can use the formula to find the volume:

\pi(r)^2(h)

First, we have to find the radius, which is:

D = 2r

So the radius is 3 feet, since it is half of the diameter. Then, we plug in the values.

3.14(3)^2(4.6)

Now, we solve. Exponents are first...

3.14(9)(4.6)

Now multiply left to right.

28.26(4.6)

129.996 cubic feet

Therefore, the barrel can hold 129.996 cubic feet of oil. Hope this helps you!

3 0
3 years ago
Rewrite the expression as a single logarithm: <br> log 5 - log 7
Lady bird [3.3K]

Answer:

-0.146

Step-by-step explanation:

log 5 = 0.699

log 7 = 0.845

5 0
3 years ago
Read 2 more answers
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