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Tcecarenko [31]
2 years ago
9

Last qestion if answered 40 points and brianlist and if right

Mathematics
1 answer:
Delicious77 [7]2 years ago
6 0

Answer:

320 yards

Step-by-step explanation:

Alright, there was a lot of addition, and you're just gonna have to trust me, the answer is 320 yards

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Find the equation of an exponential function in the form y = ab^x, given the points (0, 3) and (2, 108/25). Please simplify your
lilavasa [31]

We have the equation:

y=a\cdot b^x

We know two points and we will use them to calculate the parameters a and b.

The point (0,3) will let us know a, as b^0=1.

\begin{gathered} y=a\cdot b^x \\ 3=a\cdot b^0=a \\ a=3 \end{gathered}

Now, we use the point (2, 108/25) to calcualte b:

\begin{gathered} y=3\cdot b^x \\ \frac{108}{25}=3\cdot b^2 \\ 3\cdot b^2=\frac{108}{25} \\ b^2=\frac{108}{25\cdot3}=\frac{108}{3}\cdot\frac{1}{25}=\frac{36}{25} \\ b=\sqrt[]{\frac{36}{25}} \\ b=\frac{\sqrt[]{36}}{\sqrt[]{25}} \\ b=\frac{6}{5} \end{gathered}

Then, we can write the equation as:

y=3\cdot(\frac{6}{5})^x

5 0
1 year ago
Brian is riding his bike. He biked a distance of 14 miles at a rate of 14 miles per hour. Rearrange the distance formula, d = rt
Stells [14]

Answer:

C. 60 minutes

Step-by-step explanation:

if Brian biked 14 miles in 1 hour and 1 hour = 60 minutes then the answer is 60 minutes. hope this helps

5 0
3 years ago
Judah deposited $450 into an account that earns simple interest, and after 4 years, the interest in the account was 90$. What wa
guapka [62]

Answer:

$22.50 I think I'm not 100% sure, Im sorry

Step-by-step explanation:

90/4 is 22.5 a year

4 0
2 years ago
Brock walked 5/8 mile on Monday and 11/12 mile on Tuesday. How far did Brock walk on Monday and Tuesday?
harina [27]

Answer:

1 and 13/24

Step-by-step explanation:

you find a common denominator which is 24 then convert both to that number which gets you to

22/24  and 15/24

then you add 22 and 15 to get 37,

which you then make it into a mixed number by subtracting 24 from 37 to get 13/24 and you add your 1

to get 1 and 13/24 as your answer of how far Brock had walked on Mondat and Tuesday.

5 0
3 years ago
Read 2 more answers
Pls help being timed
Katarina [22]

A. is the answer fellow user

3 0
3 years ago
Read 2 more answers
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