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Anestetic [448]
3 years ago
6

25 POINTS AND BRAINLY(dont answer if u don't know it)

Mathematics
1 answer:
harkovskaia [24]3 years ago
6 0
The expression that represents the density is D = h^2 - 4h + 20/pi h^2
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Rewirte 11/21 and 5/9 so that they have a common denominator
Firdavs [7]

cheap answer is, you <u>multiply one fraction by the other's denominator</u>, so let's do that with both of these fellows.


\bf \qquad \cfrac{11}{\boxed{21}}~\hspace{21em}\cfrac{5}{\boxed{9}}\\\\[-0.35em] ~\dotfill\\\\ \cfrac{11\cdot 9}{21\cdot 9}\implies \cfrac{99}{189}~\hspace{15em}\cfrac{5\cdot 21}{9\cdot 21}\implies \cfrac{105}{189}

6 0
3 years ago
What is the equation of exponential regression equation? Round all numbers you your answer to three decimal places
Monica [59]

Given:

Consider the below figure attached with this question.

The value in the given figure are:

a=0.2094539899

b=2.507467975

r^2=0.9435996398

r=0.9713905701

To find:

The exponential regression equation for the given values (Rounded to three decimal places).

Solution:

The general form of exponential regression equation is:

y=a\cdot b^x          ...(i)

Where, a is the initial value and b is the growth/decay factor.

The given values are:

a=0.2094539899

b=2.507467975

Round these numbers to three decimal places.

a\approx 0.209

b\approx 2.507

Putting a=0.209, b=2.507 in (i) to find the exponential regression equation.

\hat{y}=0.209\cdot 2.507^x

Hence, the correct option is C.

7 0
3 years ago
Evaluate the expression if a=3 and b=5 <br> 4(a+2b)
Wittaler [7]
4(3+2(5))
4(3+10)
4(13)
52

3 0
4 years ago
Read 2 more answers
PLEASE HELP ASAP!
butalik [34]
The answer is 34 yards
5 0
4 years ago
Read 2 more answers
Ivan needs to memorize words on a vocabulary list for French class. He has memorized 24 of the words, which is two-thirds of the
Firdavs [7]

Answer:

36 words on the list.

Step-by-step explanation:

24/2 equals 12. 12 times 3 equals 36

7 0
3 years ago
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