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Sergio039 [100]
2 years ago
8

The following graph models bristols heart rate, in beats per minute(bpm), over time, in minutes during the last 10 minutes of yo

ga class. Bristols heart rate is 70.
Is the graph that models Bristol's heart rate a parabola?

Mathematics
2 answers:
Alexxandr [17]2 years ago
8 0
Yes, this is a parabola; it is a u-shaped graph.

The vertex is at (5, 120), and each corresponding point on either side of the graph is the same distance from the vertex.
erastova [34]2 years ago
3 0

Answer:

Yes. This is a parabola

Step-by-step explanation:

Yes. This is a parabola.

Reasons:

I. It is open down

2. Symmetrical about a vertical line

3. Has a vertex

4. Any point on the curve is equidistant from a point and a line.

Hence parabola

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What is the selling price of an item if the original cost is $784.50 and the markup on the item is 6.5 percent?
kotegsom [21]

Answer:

835.49

Step-by-step explanation:

selling price = original cost + markup value

We need to find the markup

markup = original cost * markup percent

             = $784.50 * 6.5%

           = $784.50 *.06.5

           =50.9925

Rounding to the nearest cent

            =50.99

selling price = original cost + markup value

                     =784.50+50.99

                      835.49

6 0
1 year ago
A survey asks 48 randomly chosen students if they plan to buy a school newspaper this week. Of the 48 surveyed, 32 plan to buy a
disa [49]
The most probable number, in this case, would be by ratio,
32:48 = 360:x
cross multiply and solve for x
x=360*48/32=540
Ans. Most probably there are 540 students enrolled.
8 0
2 years ago
If x+y=3 , x²+y²=5 then xy is what
tigry1 [53]
Xy is (1,2) because 1+2=3 and 1^2+2^2=5 therefor ur answer is xy= (1,2)
6 0
1 year ago
Alex started a new social media account,which he used to post pictures of cute animals. On the first day he only had 8 followers
Hatshy [7]

Answer:

648 followers

Step-by-step explanation:

Let first day=a1

Tripled followers everyday

Second day=a2=a1×3

Third day=a3=a2*3

Fourth day=a4=a3*3

Fifth day=a5=a4*3

a=8 followers

a2=a1×3

=3*8

=24 followers

a3=a2*3

=24*3

=72 followers

a4=a3*3

=72*3

=216 followers

a5=a4*3

=216*3

=648 followers

On the fifth day, Alex will have a total of 648 followers on his new social media account.

7 0
2 years ago
A customer hands you $3,850 in cash and would like to purchase 14 prepaid
Alecsey [184]

Answer:

thats kinda sus. his Id is expired. and you cant complete the transaction

Step-by-step explanation:

5 0
1 year ago
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