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Novosadov [1.4K]
4 years ago
13

How to solve

{y}(5y) = 2" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Natalija [7]4 years ago
5 0

Answer:

  y = 5

Step-by-step explanation:

Expand the logarithm:

\log_y{(5)}+\log_y{(y)}=2\\\\\dfrac{\log{(5)}}{\log{(y)}}+1=2 \quad\text{change of base formula}\\\\\dfrac{\log{(5)}}{\log{(y)}}=1 \quad\text{subtract 1}\\\\\log{(5)}=\log{(y)} \quad\text{multiply by log(y)}\\\\5=y \quad\text{take the anti-log}

_____

You can also take the antilog first:

  5y = y²

  y(y -5) = 0 . . . . . subtract 5y, factor

  y = 0 or 5 . . . . . y=0 is not a viable solution, so y=5.

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Please help me hurry please
aalyn [17]

Answer:

y = root under 24 (evaluate it if necessary)

or y = 2 root 6

Step-by-step explanation:

Let the reference angle be x

for the triangle in left,

b = 6-4 = 2

Now,

taking x as refrence angle,

cosx = b/h

or, cosx = 2/h

again,

for the bigger triangle,

taking x as reference angle,

cosx = b/h

or, cosx = b/6

As we can see base of bigger triangle is equal to hypotenuse of triangle at the left,

Let's suppose its a

so, cosx = a/6 = 2/a

now,

a/6 = 2/a

or, a² = 12

now,

for bigger triangle, using pythagoras theorem,

h² = p²+b²

or, 6² = y² + a²

or, 36 = y² + 12

or, y² = 24

so, y = root under 24

5 0
2 years ago
Can someone solve these please
otez555 [7]
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6 0
3 years ago
Ricardo has 2020 coins, some of which are pennies (1-cent coins) and the rest of which are nickels (5-cent coins). He has at lea
san4es73 [151]

Answer:

The lowest amount would be (1 x 5) + (2019 x 1) = 2024 cents, or $20.24

The highest amount would be: (1 x 1) + (2019 x 5) = 10,096 cents, or $100.96

100.96 - 20.24 = 80.72

The difference in cents between the greatest possible and least possible amounts of money Ricardo can have is $80.72.

(brainly pls)

8 0
3 years ago
Read 2 more answers
3) For what price is 15 percent off the same as $75 off?
Kryger [21]

\text{In this question, you would need to find the right value that 15\% is \$75}\\\\\text{You can do this by multiplying each number by 0.15}:\\\\200*0.15=30\\\\300*0.15=45\\\\350*0.15= 52.5\\\\500*0.15=75\\\\\text{You would see that 15\% of 500 is \$75}\\\\\boxed{\$500}

3 0
4 years ago
Read 2 more answers
In each function below, determine:
saveliy_v [14]

<em>Answer </em><em>:</em><em> </em>

For a function to be one to one it must

For a function to be one to one it mustpass the horizontal line test. For every

For a function to be one to one it mustpass the horizontal line test. For everyoutput value f(x) there is only one

For a function to be one to one it mustpass the horizontal line test. For everyoutput value f(x) there is only oneinput value x..

<em>Please </em><em>mark </em><em>me </em><em>as</em><em> </em><em>brainliest</em><em> </em><em>❤️</em>

4 0
3 years ago
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