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2 years ago

Find each difference. if you get stuck consider using a numberline

Mathematics

1 answer:

maksim [4K]2 years ago

7 0

Answer:

a,5. e,-13

b,-5. f,13

c,13. g,5

d,5. h,-13

Step-by-step explanation:

..............................this is the answer

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Each music class sings 8 songs a week.How many does each class sing in 5 weeks? 6 weeks? 7 weeks?

Scilla [17]

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2 years ago

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anygoal [31]

Answer:

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Step-by-step explanation:

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2 years ago

Suppose a population of honey bees in Ephraim, UT has an initial population of 2300 and 12 years later the population reaches 13

Rama09 [41]

Answer:

common ratio: 1.155

rate of growth: 15.5 %

Step-by-step explanation:

The model for exponential growth of population P looks like: $P(t)=P_i(1+r)^t$

where $P(t)$ is the population at time "t",

$P_i$ is the initial (starting) population

$(1+r)$ is the common ratio,

and $r$ is the rate of growth

Therefore, in our case we can replace specific values in this expression (including population after 12 years, and initial population), and solve for the unknown common ratio and its related rate of growth:

$P(t)=P_i(1+r)^t\\13000=2300*(1+r)^{12}\\\frac{13000}{2300} = (1+r)^12\\\frac{130}{23} = (1+r)^{12}\\1+r=\sqrt[12]{\frac{130}{23} } =1.155273\\$

This (1+r) is the common ratio, that we are asked to round to the nearest thousandth, so we use: 1.155

We are also asked to find the rate of increase (r), and to express it in percent form. Therefore we use the last equation shown above to solve for "r" and express tin percent form:

$1+r=1.155273\\r=1.155273-1=0.155273$

So, this number in percent form (and rounded to the nearest tenth as requested) is: 15.5 %

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2 years ago

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jasenka [17]

Answer:

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Step-by-step explanation:

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2 years ago

Plz help ASAP 20 points 10. What is the equation of a circle with radius, r = 4, and the center at (0,0)?

Ostrovityanka [42]

Answer:

Step-by-step explanation:

the equation for a circle centered at orgin is x^2+y^2=r where r is the radius. multiplying, adding, or subtracting any numbers to the x and y components such as the other choices here causes the circle to be translated about the graph.

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2 years ago

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