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3 years ago

I need help with this math problem ???

Mathematics

1 answer:

Dominik [7]3 years ago

4 0

9/7 fat and 9/40 liquid b/c
for every 7 cups of flour there is one cup of fat, so how many cups of fat for 9 cups of flour is translated as 7/1=9/x -> x= 9/7

For every 7 cups of flour there are 5 cups of liquid so how many cups of liquid for 9 cups of flour is translated as 7/5=9/x -> x=9/40

Sooo
7:1:5 ——>>>>> 9: 9/7: 9/40

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Please help lol

natka813 [3]

Answer:

the opposite of a positive number is always negative

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3 years ago

Which statement is true of the function f(x) = -3/x? Select three options.

melamori03 [73]

<h2>Answer:</h2>

We have the following function:

$f(x)=-\frac{3}{x}$

The graph of this function has been plotted below. So lets analyze each statement:

<h3>1. The function is always increasing. </h3><h3>False</h3>

As you can see x increases from -∞ to 0 and decreases from 0 to +∞

<h3>2. The function has a domain of all real numbers. </h3><h3>False</h3>

The function is undefined for $x=0$ since x is in the denominator.

<h3>3. The function has a range of {yl- </h3>

Statement is unclear but the range is the set of all real numbers except zero.

<h3 /><h3>4. The function is a reflection of y = 3. </h3><h3>False</h3>

The function is a reflection in the x axis of the function $g(x)=\frac{3}{x}$

<h3>5. The function passes through the point (3,-27).</h3><h3>False</h3>

This is false since:

$f(3)=-1\neq -27$

Note. As you can see those statements are false, so any of them is true, except item 3 that is unclear.

7 0

3 years ago

Read 2 more answers

Suppose that a rectangle has an area of 54 square meters. Express the perimeter P as a function of the length x of one of the si

Lapatulllka [165]

Answer:

$P(x) = 2\left(x+\dfrac{54}{x}\right)$

Step-by-step explanation:

The area of the rectangle can be written as:

$A = x*h$

here, x is one side length, and h is the other side length. This area is said to be equal to 54 square meters.

$54 = x*h$

The perimeter of a rectangle can be written as:

$P = 2x+2h$

To express perimeter only in terms of x (in other words making it a function P(x)). we need to replace h. And this can be done by using the equation of area that we derived earlier.

$54 = x*h$

$h=\dfrac{54}{x}$

now we can substitute this 'h' into our equation of the perimeter.

$P = 2x+2\left(\dfrac{54}{x}\right)$

$P = 2\left(x+\dfrac{54}{x}\right)$

and voila! we have expressed P in terms of x only.

this can be written as P as a function of x as:

$P(x) = 2\left(x+\dfrac{54}{x}\right)$

6 0

4 years ago

What is tje solution to the inequality 6x-5>-29

Digiron [165]

Answer: x>-4

Step-by-step explanation:

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3 years ago

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Why is the median better to represent the data of a stem and leaf plot? I NEED THE ANSWER NOW PLSSSS

jeyben [28]

Answer:

The median value is better because it is not affected by the skewness of the data

Step-by-step explanation:

The median is better in representing the data of a stem and leaf plot because the median value is not affected so much by outliers and skewness of the data. for example: for a downward skewed stem and leaf plot the value of the median is greater than the mean value

Hence the median value is a better representation of the central tendency

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3 years ago