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7nadin3 [17]
3 years ago
12

Is y a function of x? 9y-3x-4=0

Mathematics
1 answer:
Elza [17]3 years ago
5 0
In other words, can 9y - 3x - 4 = 0 be solved for y, and, if so, is there always exactly one y value for every input (x) value?

9y = 3x + 4
Thus, y = (3/9)x + 4, or    y = (1/3)x + 4

No matter which real x you choose, y is always assigned exactly one value by this rule.  So, yes, this is a function.
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The mass of a carbon atom is 1.994 × 10-23 grams. The mass of a hydrogen atom is 1.67 × 10-24 grams. What is the difference of t
Bezzdna [24]
Solving:
1.994*10^{-23}\:-\:1.67*10^{-24} = 

(1.994 - 0.167 )*10^{-23}
\boxed{\boxed{1.827*10^{-23}\:grams}}\end{array}}\qquad\quad\checkmark

4 0
3 years ago
What is the probability that a point chosen at random on the grid will lie in the shaded region?
Mashcka [7]

Given:

A grid with a shaded region.

To find:

The probability that a point chosen at random on the grid will lie in the shaded region.

Solution:

We have,

Total number of small boxes = 100

Number of blue boxes (shaded region) = 36

Now,

probability that a point chosen at random on the grid will lie in the shaded region is

\text{Probability}=\dfrac{\text{Number of blue boxes (shaded region)}}{\text{Total number of small boxes}}

\text{Probability}=\dfrac{36}{100}

To find the probability in percent, multiply it by 100.

\text{Probability}\%=\dfrac{36}{100}\times 100

\text{Probability}\%=36\%

Therefore, the correct option is A.

8 0
2 years ago
A bike path is 12.5 miles. Dominic is 70% of the way to the end. How far is Dominic on the​ path?
stepan [7]

Answer:

8.75 miles is 70%

Step-by-step explanation:

12.5

1.25 is 10 percent

multiply that by 7

8.75 miles

3 0
2 years ago
Which equation represents a linear function?
olga nikolaevna [1]

Answer: Equation 3

Step-by-step explanation:

It does not have any exponents, meaning it's linear

4 0
3 years ago
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Step-by-step explanation:

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