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3 years ago

The number of bacteria in a certain population increases according to a continuous exponential

Mathematics

1 answer:

ludmilkaskok [199]3 years ago

4 0

Answer:

Step-by-step explanation:

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Factor the trinomial x^2 - 16x +63

Butoxors [25]

Factor the following:
x^2 - 16 x + 63
The factors of 63 that sum to -16 are -7 and -9. So, x^2 - 16 x + 63 = (x - 7) (x - 9):
Answer: (x - 7) (x - 9)

3 0

3 years ago

It would take Marco 6 hours to paint a fence by himself. It would take Jaylyn 5 hours to paint the same fence by herself. Marco

Lyrx [107]

<u>Answer</u>

Time taken to paint the fence by Marco and Jaylyn is 2.72 hours

Heading can be given to this is work per hour

<u>Explanation</u>

Macro 6 hours to paint fence by himself

Therefore his 1 hour work = 1/6

Jaylyn 5 hours to paint the same fence by herself

Therefore 1 hour work of Jaylyn = 1/5

Together 1 hour work = 1/6 + 1/5 = 11/30

Therefore time taken to paint the fence together by them = 30/11 = 2.72 hours

4 0

3 years ago

Read 2 more answers

In a bag there are 3 red marbles, 2 yellow marbles, and 1 blue marble. What is the percent chance of a yellow marble being selec

aksik [14]

Answer:

33.333333% (the 3 goes on forever)

8 0

3 years ago

Divide 300 g^2 0.0005 g and express using scientific notation

pickupchik [31]

(300g^2) / (0.0005g) = 600,000g = 6 x 10^5g

3 0

3 years ago

Read 2 more answers

Two bicycles are driving on the circle in the same direction with speeds of 9 mph and 5 mph respectively. How many points are th

pychu [463]

Given that,

Speed of first bicycle = 9 mph

Speed of second bicycle = 5 mph

Suppose the length of the circle 24 miles.

We need to find the relative velocity

Using formula of relative velocity

$v=v_{1}-v_{2}$

Put the value into the formula

$v=9-5$

$v=4\ mph$

We need to calculate the time

Using formula of time

$t=\dfrac{d}{v}$

$t=\dfrac{24}{4}$

$t=6\ hr$

We need to calculate the distance of the points where the two bicycles meet

Using formula of distance

For first bicycles,

$d=9\times6$

$d=54\ miles$

For second bicycles,

$d'=5\times6$

$d'=30\ miles$

Hence, The points where the two bicycles meet after every 6hr at 30 miles and 54 miles.

4 0

3 years ago