2 years ago

What is the importance of mathematical sentences?

Mathematics

1 answer:

ser-zykov [4K]2 years ago

8 0

Answer:

A mathematical sentence makes a statement about two expressions.

Step-by-step explanation:

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Find the circumference of the circle whose diameter is 210cm

Lynna [10]

Circumference=2πr
=2*3.14*105
=659.4cm

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3 years ago

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Allen has $10 to spend. He bought a sandwich for

Natasha2012 [34]

Answer:

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2 years ago

What is the value of ln e^4

sineoko [7]

Answer:

$\large\boxed{\ln e^4=4}$

Step-by-step explanation:

$Use\\\\\log_ab^n=n\log_ab\\\\\log_aa=1\\\\\ln a=\log_e a\to\ln e=1\\====================================\\\\\ln e^4=4\ln e=4(1)=4$

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2 years ago

The number of cases of a new disease can be modeled by the quadratic regression equation y = –2x2 + 36x + 6, where x represents

nirvana33 [79]

Since x represents the year, year 15 will be 15 years.

Plug in "15" as your "x"

y = -2(15)^2 + 36(15) + 6

15^2 = 225 (Exponents come before multiplication)

y = -2(225) + 36(15) + 6

y = -450 + 540 + 6

y = 90 + 6

y = 96

<em>The answer is B</em>

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3 years ago

Look at pic I need help!!!! :(

Novosadov [1.4K]

Answer: x=12

Step-by-step explanation:

5x-15=2x+21(AIA)

3x-15=21

3x=36

x=12

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2 years ago