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sesenic [268]
4 years ago
14

A certain breed of mouse was introduced onto a small island with an initial population of 320 mice, and scientists estimate that

the mouse population is doubling every year. (a) find a function that models the number of mice m after t years.
Mathematics
1 answer:
Viefleur [7K]4 years ago
7 0
Y=2x+320
x being the number of years and 320 being the initial population of mice
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Write an equation of the circle with center (-7, 4) and radius 8.
Stels [109]

answer

(x+7)^2 + (y-4)^2 = 64

set up equation

the equation of a circle is (x - h)^2 + (y - k)^2 = r^2

where h is the center x coordinate and k is the center y coordinate

values

from the point (-7,4) we know that h = -7 and k = 4

since the radius is 8, r^2 = 8^2 = 64

plug in values

now that we have all the values, we plug them into (x - h)^2 + (y - k)^2 = r^2

(x - h)^2 + (y - k)^2 = r^2

(x - (-7))^2 + (y-4)^2 = 64

(x+7)^2 + (y-4)^2 = 64

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3 years ago
Find the value of X to the nearest tenth.
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Step-by-step explanation:

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Evaluate log^8x-4log^8x​
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3 0
3 years ago
The distance from Earth to the moon is 2.4 × 105 miles. The distance from Earth to the sun is 9.3 × 107 miles. Complete the sent
Liono4ka [1.6K]

Answer:

Distance = 9.276 * 10^7 miles

Step-by-step explanation:

Given

Earth\ to\ Moon = 2.4 * 10^5 miles

Earth\ to\ Sun = 9.3 * 10^7 miles

Required

Difference in the distance of earth to sun to the distance of earth to moon

This can be solved using:

Distance = Earth\ to\ Sun - Earth\ to\ Moon

Distance = 9.3 * 10^7 - 2.4 * 10^5

Express 10⁷ as 10⁵ * 10²

Distance = 9.3 * 10^5 * 10^2 - 2.4 * 10^5

Factorize:

Distance = 10^5(9.3 * 10^2 - 2.4)

Solve the expression in the bracket

Distance = 10^5(9.3 * 100 - 2.4)

Distance = 10^5(930 - 2.4)

Distance = 10^5(927.6)

Distance = 927.6 * 10^5

Expand 927.6

Distance = 9.276 * 10^2 * 10^5

Distance = 9.276 * 10^{2+5}

Distance = 9.276 * 10^7

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8y + 9<br><br> What is the variable term in the expression?
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The variable in equations are always the letters so the variable in this equation is y
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