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fredd [130]
3 years ago
10

Please help me guys in trying to improve my math grade: it is recommended that people have 1 g of calcium each day. How many mil

ligrams of calcium is that
Mathematics
2 answers:
poizon [28]3 years ago
8 0
1 gram of calcium is 1,000 milligrams of calcium
Ymorist [56]3 years ago
3 0
1000 milligrams.
1 gram= 1000 milligrams.

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Which one of these relationships is different than the other three? Explain how you know. Hint: Find all
Gnesinka [82]

Answer:

Graph 2 has a different constant of proportionality

Step-by-step explanation:

See attachment for graphs

To calculate the constant of proportionality, we simply determine the slope of each graph using

m = \frac{y_2 - y_1}{x_2 - x_1}

Where x's and y's are corresponding values of x and y

Graph 1:

(x_1,y_1) = (0,0)

(x_2,y_2) = (0.8,4)

Substitute these values in: m = \frac{y_2 - y_1}{x_2 - x_1}

m = \frac{4 - 0}{0.8 - 0}

m = \frac{4}{0.8}

m = 5

Graph 2:

(x_1,y_1) = (0,0)

(x_2,y_2) = (10,55)

Substitute these values in: m = \frac{y_2 - y_1}{x_2 - x_1}

m = \frac{55 - 0}{10 - 0}

m = \frac{55}{10}

m = 5.5

Graph 3:

(x_1,y_1) = (0,0)

(x_2,y_2) = (4,20)

Substitute these values in: m = \frac{y_2 - y_1}{x_2 - x_1}

m = \frac{20 - 0}{4 - 0}

m = \frac{20}{4}

m = 5

Graph 4:

(x_1,y_1) = (0,0)

(x_2,y_2) = (10,50)

Substitute these values in: m = \frac{y_2 - y_1}{x_2 - x_1}

m = \frac{50 - 0}{10 - 0}

m = \frac{50}{10}

m = 5

<em>From the calculations above, graph 2 has a different constant of proportionality of 5.5 while others have 5 as their constant of proportionality</em>

6 0
3 years ago
Let f(x)=201+9e3x .<br><br><br><br> What is the y-intercept of the graph of f(x) ?
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Answer:

The y-intercept is (0,210)

Step-by-step explanation:

We have the function, f(x)=201+9e^{3x}

So, we know that,

<em>'y-intercept is the point on the graph where the function crosses y-axis'.</em>

i.e. y-intercept is obtained when x=0.

Thus, substituting x=0 in the given function, we get,

f(0)=201+9e^{3\times 0}

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i.e. f(0)=201+9\times 1

i.e. f(0)=201+9

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Also, we can see from the given graph that the function crosses y-axis at (0,210).

Hence, the y-intercept is (0,210).

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