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3 years ago

What is the square root of 9/49 as a fraction?

Mathematics

1 answer:

Kay [80]3 years ago

8 0

3/7 . just take the square root of the top and bottom

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Write the fraction 5/8 as a percent and as a decimal.

Sergio [31]

Answer:

0.625

62.5%

Step-by-step explanation:

5/8 is 0.625 as a decimal and

0.625*100 is 62.5 as a percent

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2 years ago

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Can a right triangle ever have an obtuse angle?

SCORPION-xisa [38]

No because a right triangle always has a right angle

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3 years ago

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Solve the formula x − y = −8 for y.

laiz [17]

Answer:

$y = x + 8$

Step-by-step explanation:

$x - y = - 8$

$x + 8 = y$

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3 years ago

Can somebody please help me

Ksenya-84 [330]

Answer:

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Step-by-step explanation:

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3 years ago

A culture started with 3000 bacteria. After 2 hours it grew to 3300 bacteria. Predict how many bacteria will be present after 16

bixtya [17]

Answer:

$6,430\ bacteria$

Step-by-step explanation:

we have a exponential function of the form

$y=a(1+r)^{x}$

where

y is the population of bacteria

a is the initial value

r is the rate of growth

x is the number of hours

we have

a=3,000 bacteria

$y=3,000(1+r)^{x}$

For x=2, y=3,300

substitute

$3,300=3,000(1+r)^{2}$

$(3,300/3,000)=(1+r)^{2}$

Apply square root both sides

$1+r=\sqrt{3.3/3}$

$r=\sqrt{3.3/3}-1$

$r=0.0488$

$r=4.88\%$

substitute in the equation

$y=3,000(1+0.0488)^{x}$

$y=3,000(1.0488)^{x}$

Predict how many bacteria will be present after 16 hours

For x=16 hours

substitute

$y=3,000(1.0488)^{16}$

$y=6,430\ bacteria$

6 0

3 years ago