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2 years ago

Help me please thank you

Mathematics

1 answer:

Lynna [10]2 years ago

5 0

Nice excellent wonderful

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What number is 9.5% of 20?

mars1129 [50]

1.9

9.5% = 0.095

0.095* 20 = 1.9

7 0

3 years ago

BRAINLIEST ASAP! PLEASE HELP ME :)

Afina-wow [57]

Answer:

$\large \boxed{\textbf{30.54 yr}}$

Step-by-step explanation:

For species A,

$P =2000e^{0.05t}$

For species B,

$P =5000e^{0.02t}$

When their populations are equal,

$\begin{array}{rcl}2000e^{0.05t} & = & 5000e^{0.02t}\\e^{0.05t} & = & 2.5e^{0.02t}\\0.05t & = & \ln2.5 + 0.02t\\0.05t & = & 0.9163 + 0.02t\\0.03t & = & 0.9163\\t& = & \dfrac{0.9163}{0.03}\\\\& = & \mathbf{30.54}\\\end{array}\\\text{The populations of species A and B will be the same in $\large \boxed{\textbf{30.54 yr}}$}$

The diagram below shows the population of Species A overtaking that of Species B in about 30.5 yr.

3 0

3 years ago

Write 8256 correct to 3 significant figures.

konstantin123 [22]

Answer:

8260 line over 6

Step-by-step explanation:

4 0

2 years ago

5. There are 4200 bacteria in a lab dish. The population decreases 8%per day. How many bacteria are there after day 1? Round to

Mamont248 [21]

Answer:There are 4200 bacteria in a lab dish. The population decreases 8%per day. How many bacteria are there after day 1? Round to nearest whole number

Step-by-step explanation:

8 0

2 years ago

Please help please <br><br> -2x - x + 8 = ?

nataly862011 [7]

Answer:

-3x + 8

Step-by-step explanation:

Simplify. combine like terms (terms with the same amount of variables).

Subtract -2x and x: -2x - x = -3x

-3x + 8 is your answer.

7 0

3 years ago