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2 years ago

8

Uf two integers have the same sign, what is sign of their sum

1 answer:

Viktor [21]2 years ago

8 0

This question don’t make sense

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If a population of dolphins increases at a constant rate of 1.5% every year for 20 years what will be the total percentage incre

hichkok12 [17]

Answer:

The population increased by 34.69% over 20 years.

Step-by-step explanation:

It is given that the population of dolphins increases at a constant rate of 1.5% every year for 20 years.

Formula for population increase:

$P=a(1+r)^t$

where, a is initial population, r is growth rate and t is time in years.

If the population of dolphins increases at a constant rate of 1.5% every year for 20 years, then the population after 20 years is

$P=a(1+0.015)^{20}$

$P=a(1.015)^{20}$

$P=1.346855a$

Where, a is the initial population.

The total percentage increase over the 20 years is

$\% change=\frac{P-a}{a}\times 100$

where, P is population after 20 years and a is initial amount.

$\% change=\frac{1.346855a-a}{a}\times 100$

$\% change=\frac{0.346855a}{a}\times 100$

$\% change=0.346855\times 100$

$\% change=34.6855$

$\% change\approx 34.69$

Therefore the population increased by 34.69% over 20 years.

6 0

2 years ago

To find out approximately how many hours its residents are spending playing cards at a senior retirement home, the recreation di

lara31 [8.8K]

The answer is 8 hours

8 0

2 years ago

Plz help ASAP !!!!!!!!!!<br> WILL MARK BRAINLIEST <br><br> Thank u!

Andreas93 [3]

Answer:

(4,8) (8,0) (-4,4)

Step-by-step explanation:

2(2,4)

(4,8)

2(4,0)

(8,0)

2(-2,2)

(-4,4)

Plot the points

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3 years ago

I need to calculate X<br><br> 2^x=200<br><br> Solve for x

antoniya [11.8K]

Remember
$log(a^z)=zlog(a)$
so

notice that 200=2*2*2*5*5, so x cannot be a whole number

take the log base 10 of both sides

$log_{10}(2^x)=log{10}(200)$
$xlog_{10}(2)=log{10}(200)$
divide both sides by $log_{10}(2)$
$x= \frac{log_{10}(200)}{log_{10}(2)}$

if we used $log_{2}$ instead of $log_{10}$ we would get
$x= log_{2}(200)$ because $log_{a}(a^b)=b$

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3 years ago

Which theorem or postulate justifies this statement? angle6 cong angle13

dezoksy [38]

Answer:

C. Alternate Exterior Angles Theorem

Step-by-step explanation:

I took the test

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2 years ago