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larisa86 [58]
3 years ago
15

What is the value of x in the equation

Mathematics
2 answers:
Alex3 years ago
8 0

Answer:

D) 57

Step-by-step explanation:

1/3x- 1/2 = 18 1/2

1/3x = 19

(3) * 1/3x = 19 (3)

x = 57

Kisachek [45]3 years ago
8 0

Answer:

D. 57

Step-by-step explanation:

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Find the exact value of each expression . Do not use a calculator .
Alex73 [517]
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8. \cos^{-1}(0)= 90^{\circ}=\dfrac{\pi}{2}

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8 0
3 years ago
Solve log525 = x 2 1/2 -2
elixir [45]

Answer:

x = 1/2

Step-by-step explanation:

The equation in correct format is:

log_{5}(25)=x

We have to solve this logarithmic equation to find the value of x. This can be done by using the rules of logarithm i.e the power rule and same base rule shown below:

log(a)^{b}=b \times log(a)\\\\log_{a}(a)=1

Using these rules on our equation, we get:

log_{5}(25)=x\\\\log_{5}(5^{\frac{1}{2} })=x\\\\ \frac{1}{2} log_{5}(5)=x\\\\ \frac{1}{2} (1)=x\\\\ x=\frac{1}{2}

Thus the value of x would be 1/2

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2 years ago
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tamaranim1 [39]

Answer:

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Step-by-step explanation:

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Answer:

A)

Step-by-step explanation:

if you use the foil method on A you get '100k² - m²'

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