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adell [148]
3 years ago
14

Solve for x: 10^(2+logx) =21

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
4 0

Answer:

Step-by-step explanation:

Determine the defined range

Take the logarithm of both sides of the equation

Convert the constant into a logarithmic with base 10

Using loga(x)+ loga(y)=loga(xxy)

Evaluate the power

Since the base is based of the logarithmic are the same , set the argument equal

Divide both sides of the equation by 100

Check if the solution is in defined range

Answer: 21/100

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The line having an x intercept of 3 and y intercept of 10<br> Write this in Standard form Ax+By=C
Svetlanka [38]

Answer:

The standard form of the line is 10x + 3y = 10

Step-by-step explanation:

First we need to find the slope of the equation, which we can do using the slope equation and the two points given: (3, 0) and (0, 10)

m(slope) = (y2 - y1)/(x2 - x1)

m = (10 - 0)/(0 -3)

m = 10/-3

Now we can write the equation in slope intercept form since we have the slope and the intercept.

y = mx + b

y = -10/3x + 10

Now we can manipulate the equation to get the standard form.

y = -10/3x + 10

10/3x + y = 10

10x + 3y = 30

5 0
3 years ago
In a marathon 90% runner were managed to complete it and 30% were men if 270 men completed it how many total runner began the ma
Maurinko [17]

Answer:

1000 runners

Step-by-step explanation:

Take total number of runners to be -----------x

90% of x managed to complete the marathon= 90/100 × x =0.9x

30% of those who completed the marathon were men= 30% × 0.9x

=0.3×0.9x= 0.27x

=270 men completed the marathon; this means

0.27x=270--------------------------------find x by dividing both sides by 0.27

x= 270/0.27

x=1000 runners

7 0
3 years ago
Read 2 more answers
Need help ASAP!!!!!!!!!!!
8090 [49]

Answer:

Step-by-step explanation:

5/6 + 1/8 + 3/4 = 1 17/24

Option A is the correct answer

8 0
3 years ago
I need help quickly. I think it's B or D.
Ludmilka [50]

personally id say c cuz the one on the right makes it have no trend, and also because if it was a negative trend there should only have been one answer on it really.

5 0
3 years ago
Read 2 more answers
5. Select All equations that have a solution of 2"
Pachacha [2.7K]

Answer:

none of these have a solution of 2.

Step-by-step explanation:

4x+ 15 = 27

x=3

x + 6 =3

x = 3

2(x+5)=18

x = 4

x + 9 = 6

x = -3

if my understanding of what the equations are supposed to be please let me know what they are supposed to be, because with the way they are typed it is hard to tell :)

6 0
3 years ago
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