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disa [49]
3 years ago
9

Find the value of y Log^2 32=y

Mathematics
1 answer:
elena-s [515]3 years ago
7 0

Answer:

Step-by-step explanation:

First of all, I have a strong feeling that that is supposed to be

log_2(32)=y so I'm going to go with that. We can solve for y by rewriting that in exponential form. Exponential form and log form are inverses of each other. If the log form of an equation is

log_b(x)=y, the exponential form of it is

b^y=x. We will apply that here to solve for y:

2^y=32

which is asking us, "2 to the power of what equals 32?". We can use our calculator to raise 2 to consecutive powers til we reach the one that gives us a 32, or we could solve it by writing the 32 in terms of a 2:

2^y=2^5

Since both bases are the same, 2, then the exponents are equal to one another. y = 5. This is an important rule to remember while solving either log or exponential equations.

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Last summers, students who worked earned an average of $80 a week with a standard deviation of $12. What percentage of students
Roman55 [17]

Answer:

  • 2.28%

Step-by-step explanation:

<u>Given:</u>

  • μ = 80
  • σ = 12
  • x = 104

<u>Find z-score:</u>

  • z = (x - μ)/σ
  • z = (104 - 80)/12 = 2

Percent value corresponding to 2 as per z-table is 0.9772. This is corresponding to 97.72%.

<u>Percentage of students earned more than $104:</u>

  • 100 - 97.72 = 2.28
5 0
3 years ago
What is the equation, in slope-intercept form, of the line parallel to y = 5x+2 that passes through the point (-2, 1)?
o-na [289]
Y=5x+11 using the point-slope formula and simplifying
4 0
3 years ago
What is the slope of (-18,-20),(-18, -15)
Rzqust [24]

Answer:

Undefined.

Step-by-step explanation:

m =  \frac{rise}{run}

m =  \frac{ - 15 - ( - 20)}{ - 18 - (  -  18)}  \\ m =  \frac{ - 15 + 20}{ - 18 + 18}  \\ m =  \frac{5}{0}

The denominator is 0. Therefore, the slope is undefined.

4 0
3 years ago
Geometry Question Help if you can please
docker41 [41]

Answer:

≈ 78.55 cm

Step-by-step explanation:

Using the ratio of arc (AB) to circumference (C) is equal to the ratio of angle subtended at centre by arc AB to 360°, that is

\frac{AB}{C} = \frac{110}{360} , that is

\frac{24}{C} = \frac{110}{360} ( cross- multiply )

110C = 8640 ( divide both sides by 110 )

C = \frac{8640}{110} ≈ 78.55 cm ( to 2 dec. places )

5 0
3 years ago
Ben is 4 times old as ishaan. 6 years ago, Ben was 6 times as old as ishaan <br> How old is Ben now?
SpyIntel [72]

Answer:

60years

Step-by-step explanation:

let Ben age = x

ishaan age = y

Ben is 4 times old as ishaan:

x=4y ..........equation (1)

6 years ago

Ben age = x-6

Ishaan age = y-6

x-6=6(y-6)

x-6=6y-36

x=6y-36+6

x=6y-30..........equation (2)

equating equation(1) and (2)

4y=6y-30

4y-6y=-30

-2y=-30

y=-30/-2=15

substituting the value of y into equation (1)

x=4y

=4*15

=60

Ben age now =60years

7 0
3 years ago
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