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3 years ago

If your heart rate is 155 beats per minute during strenuous exercise, what is the time per beat in units of seconds

Mathematics

1 answer:

SCORPION-xisa [38]3 years ago

4 0

Answer:

5 beats per second

Step-by-step explanation:

statistic operation depends

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B²-2b+6 what does this equal

aleksley [76]

That is it in simplest form, there is nothing else you can do to it.

Hope this helps :)

8 0

4 years ago

Trudy is starting a comic book collection. Let Cn represent the number of comic books that Trudy has after n weeks. The recursiv

vitfil [10]

Answer:

(A)

$C_n=3+2n$

(B)

$C_1_0=23$

Step-by-step explanation:

(A)

we are given

$C_n_+_1=C_n+2$

$C_1=5$

Firstly, we will find few terms

$C_2=C_1+2$

$C_2=5+2$

$C_2=7$

$C_3=C_2+2$

$C_3=7+2$

$C_3=9$

$C_4=C_3+2$

$C_4=9+2$

$C_4=11$

so, we will get terms as

5, 7 , 9 , 11

we can see that this is arithematic sequence

First term =5

common difference =d=7-5=2

now, we can use nth term formula

$C_n=C_1+(n-1)d$

now, we can plug values

$C_n=5+2(n-1)$

$C_n=5+2n-2$

$C_n=3+2n$

(B)

we can plug n=10

$C_1_0=3+2\times 10$

$C_1_0=23$

8 0

3 years ago

Characterize the slope of the line in the graph

katen-ka-za [31]

Answer:

Please check the attached graph.

Step-by-step explanation:

<em>Note: You did not add the graph; so I am taking a sample graph to clear the concept anyway. Please check the referred graph attached below.</em>

<em />

The slope on the graph basically tells us the time rate of change.

In other words, it describes the steepness of a straight line.

The slope can also be termed as:

Slope = rise / run

<em />

From the attached graph, taking twp points

(0, 3)

(-1, 0)

Finding the slope between (0, 3) and (-1, 0) using the formula

$\left(x_1,\:y_1\right)=\left(0,\:3\right),\:\left(x_2,\:y_2\right)=\left(-1,\:0\right)$

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$m=\frac{0-3}{-1-0}$

$m=3$

Thus, the slope of the given line on the graph = m = 3

3 0

3 years ago

~~~ 20 POINTS ~~~

Ilia_Sergeevich [38]

A) Lets write our equations.

22x + 100 = 25x + 70

Now lets solve step-by-step.

Apply the inverse operation 22x + 100 = 25x + 70
-22x -22x

25x - 22x = 3x

3x + 70 = 100
-70 - 70 We subtract 70 from both sides because (inverse operation)

3x = 30

3x/3 = 30/3
x = 30/3
x= 10

B) We need to find which one is the most cheap.

Lets pick an integer to replace x.

22x + 100 = 25x + 70

Lets choose '2'

22(2) + 100 = 25(2) + 70
44 + 100
50 + 70

144
120

The first one : Country Carpets charges $144 , while at the same rate, City carpets charges 120.

So, obviously, City Carpets is cheaper than that other one, so he would most likely choose that one.

5 0

4 years ago

Read 2 more answers

A red kangaroo jumps along 40 km/h. At this rate how long would it take to jump 2 km

Ludmilka [50]

It is 20 mile per hour

4 0

3 years ago