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3 years ago

Jana is training for a triathlon. If Jana biked at a constant rate, how many miles did she bike in the first 15 minutes?

Mathematics

1 answer:

Harman [31]3 years ago

7 0

In order to answer, I would first need to know Jana's speed, not that she biked at a constant rate.

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The linearized regression equation for an exponential data set is log ŷ = 0.14x + 0.4, where x is the number of years and y is t

djyliett [7]

Option C: $316$ is the predicted population when $x=15$

Explanation:

The regression equation for an exponential data is $\log y=0.14x+0.4$

Where x is the number of years and

y is the population

We need to determine the predicted population when $x=15$

The population x can be determined by substituting $x=15$ in the equation $\log y=0.14x+0.4$

Thus, we have,

$\log y=0.14(15)+0.4$

$\log y=2.1+0.4$

$\log y=2.5$

Using the logarithmic definition $\log _{a}(b)=c$ then $b=a^{c}$

$\log _{10}(y)=2.5 \Rightarrow y=10^{2.5}$

$y=316.22776 \ldots$

Rounding off to the nearest whole number, we get,

$y=316$

Thus, the predicted population when $x=15$ is 316

Hence, Option C is the correct answer.

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4 years ago

The dot plot below shows the number of students on a classroom honor roll for one or more weeks. According to the dot plot how m

d1i1m1o1n [39]

Three times more of the week were plotted

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3 years ago

How many minutes is 7:43 to 8:41

frez [133]

It is 58 minutes. :]

3 0

3 years ago

Read 2 more answers

Find the complement of the angle shown

Archy [21]

Supplementary = 180°
Complementary = 90°

180° - 52° = 128°
90° - 52° = 38°

Hope this Helps!!

6 0

3 years ago

Please help me!<br> I have problem understanding.<br> Please give me workings

Ivanshal [37]

Answer:

A)7

B)14

C)20

D)18

Step-by-step explanation:

For example 2/5 of 80

2/5 x 80/1 =32 Cross cancel

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4 years ago