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Kisachek [45]
2 years ago
10

The equation y = 1.2x represents the rate, in beats per second, that Lee's heart beats. The graph represents the rate that Nancy

's hear beats. Determine whose heart is beating at a faster rate.

Mathematics
2 answers:
laiz [17]2 years ago
4 0
Here’s the answer w the explanation. Answer: Lee’s is beating faster.

Dmitriy789 [7]2 years ago
4 0
Nancy’s heart beats were faster. As you can see from the graph, Nancy is currently going at a rate of 1.25 beats per second as opposed to Lee’s 1.2 beats per second. You can figure this out from dividing
Y/x=rate
I can choose any point of the graph which I can divide.
For this case I choose (20,25)
So I divide 25/20 and I will get 1 5/20 rounding to 1 1/4 and then converted to 1.25 beats per second.
Hope that helps!!
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Prove (correctly) that if 1 = -1, then 2=1
Nitella [24]

Answer:

This may not be entirely satisfied proof but you should get the idea.

Proof: Start with 1 = -1.

Then we know that if a= b then a + c = b + c and also a / c = b / c.

So we can add 1 to both sides.

We have 1 + 1 = -1 + 1   ⇒   2 = 0.

Now divide both sides by 2 and we would have 1 = 0.

Now add both sides by 1. This yields 2 = 1.

Therefore if 1 = -1 then 2 = 1.

QED

6 0
3 years ago
Please help me with this (ANSWER IN SCIENTIFIC NOTATION) If your right Ill give you brainlist
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(9 x 10 ^(-5)) - (3 x 10^(-16))

Your subtracting to find the difference in size

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3 years ago
I will mark brainly, help me with this question please.​
Anna [14]

Step-by-step explanation:

Since x varies directly as \sqrt{y} we can write the relation as

x = k\sqrt{y}

where k is the constant of proportionality.

a) To solve for the k, we substitute the given values:

5 = k\sqrt{13} = k(13)

\Rightarrow k = \dfrac{5}{13}

b) The equation relation x and y can be written as

x = \dfrac{5}{13}\sqrt{y}

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Calculate the amount of interest on $1200.00 for one year at an annual rate of 4 %.
kodGreya [7K]
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7 0
3 years ago
Read 2 more answers
Can you help me please?
ExtremeBDS [4]

Answer:

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the domain is basically all the x-values that are applicable to the graph.

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hence the domain is 0≤x≤8

6 0
3 years ago
Read 2 more answers
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