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Rudiy27
3 years ago
7

Please help me with this problem, and can you also show steps. thank you

Mathematics
2 answers:
Hatshy [7]3 years ago
8 0
((-8 2/5)/(-4 1/10))*(-1/2)
(-(8*5+2)/5)/(-(4*10+1)/10)*(-1/2)
(-(42/5))/(-(41/10))*(-1/2)
((42/5)/(41/10))*(-1/2)
((42/5)*(10/41))*(-1/2)
((42*10)/(5*41))*(-1/2)
((420)/(205))*(-1/2)
(84/41)*(-1/2)
-((84*1)/(41*2))
-((84)/(82))
=-(42/41)
=-42/41
=-1 1/41
Maurinko [17]3 years ago
7 0
Convert all the improper fractions into mixed numbers, then simplify. Then, you do the operations.
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This is the graph of f(x). what is the value of f(3)
muminat

f(3) is where the line is on the Y axis when X is 3:


Looking at the red line when it passes over X3, the line is on Y8.


The answer is B.8


4 0
3 years ago
Read 2 more answers
What information can be used to compare linear relationships? Explain why.
stellarik [79]

Answer:the slope and the y intercept (you can tell there linear if the slope is the same and the y-intercepts are different).

Step-by-step explanation:

8 0
2 years ago
What is the inverse of f(x)=e^x
enot [183]

Answer:

f^{-1}(x)=\ln{x}

Step-by-step explanation:

An <em>inverse</em> function is any function that "undoes" another function. If we think of the function f as some kind of machine that takes in a number x as input and produces a number f(x) as an output, when we give inverse function f^{-1} the number f(x) as in input, we get x, our original input, as the output f^{-1}(x)

We need a function that undoes f(x)=e^x, and the natural choice for undoing an exponent is with a logarithm. Here, our base is e, so we'll choose \log_e{x}=\ln{x} as our inverse function. Let's see how that works:

f^{-1}(f(x))=\ln{e^x}

\ln{e^x} is the power we have to raise e to to get e^x, which is x, so

f^{-1}(f(x))=\ln{e^x}=x

And we have our function.

8 0
3 years ago
What are the chances your flight will leave on time? Below are a histogram and summary statistics for the percentage of flights
Jet001 [13]

Answer:

80.0456<\bar x<81.1210

Step-by-step explanation:

-Given the mean, \bar y=80.5833 and s=2.77369, the confidence interval can be calculated using the formula:

\bar x\pm z\times \frac{\sigma}{\sqrt{n}}

#We substitute our values in the formula to solve for CI:

=\bar x\pm z\times \frac{\sigma}{\sqrt{n}}\\\\=\bar y\pm z_{0.05}\times \frac{s}{\sqrt{72}}\\\\=80.5833\pm 1.645\times \frac{2.77369}{\sqrt{72}}\\\\=80.5833\pm0.5377\\\\=[80.0456,81.1210]

Hence, the confidence interval lies between 80.0456 and 81.1210

4 0
3 years ago
3(1.5x+9)= tell me NOW
Misha Larkins [42]

Answer:

x = -6

Step-by-step explanation:

Simplifying

3(1.5x + 9) = 0

Reorder the terms:

3(9 + 1.5x) = 0

(9 * 3 + 1.5x * 3) = 0

(27 + 4.5x) = 0

Solving

27 + 4.5x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-27' to each side of the equation.

27 + -27 + 4.5x = 0 + -27

Combine like terms: 27 + -27 = 0

0 + 4.5x = 0 + -27

4.5x = 0 + -27

Combine like terms: 0 + -27 = -27

4.5x = -27

Divide each side by '4.5'.

x = -6

Simplifying

x = -6

5 0
3 years ago
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