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Sati [7]
3 years ago
12

Expressions are equivalent to 4 ( 3 j + ( − 4 ) ) − 9

Mathematics
2 answers:
lions [1.4K]3 years ago
7 0

Answer:

12j - 25

Step-by-step explanation:

4(3j-4)-9

12j-16-9

12j-25

LenKa [72]3 years ago
3 0

Answer:

12j - 25

Step-by-step explanation:

I had the exact same question

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The birth rate of a population is b(t) = 2300e0.021t people per year and the death rate is d(t)= 1450e0.018t people per year, fi
Cerrena [4.2K]

Answer:

38,674.This area represents the increase in population over a 10-year period.

Step-by-step explanation:

When graphed over the interval 0 ≤ t ≤ 10, the birth rate is more than the death rate. This means the area between the two curves is the amount of births subtract the amount of deaths. This results in an area which means the increase of the population.

The birth rate is graphed in green and the death rate is graphed in blue.

To find the area, take the integral of the difference of the functions:

\int\limits^{10}_0 {2300e^{0.021t} - 1450e^{0.018t} } \, dt \\\\\frac{2300e^{0.021t}}{0.021} -  \frac{1450e^{0.018t}}{0.018} \\\\(\frac{2300e^{0.21}}{0.021} -\frac{1450e^{0.18}}{0.018} ) - (\frac{2300}{0.021}- \frac{1450}{0.018} ) \\\\135117.12 - 96442.51 \\\\38,674

7 0
3 years ago
What is the simplified form of the expression? (m^-1m^5/m^-2)^-3
Eva8 [605]
1 (((m^(-1)) (m^5)) / (m^(-2)))^(-3) =1/m^18
5 0
3 years ago
Read 2 more answers
Which equation can you use to find the value of x?
klemol [59]

Answer:

3x=78+(x-2)

Step-by-step explanation:

The complete question in the attached figure

we know that

The <u><em>Triangle Exterior Angle Theorem</em></u> states that: An exterior angle of a triangle is equal to the sum of the opposite interior angles.

In this problem

3x=78+(x-2)

solve for x

3x=76+x\\3x-x=76\\2x=76\\x=38^o

3 0
3 years ago
sam is 12 in four years his age will be 2/3 the age of his cousin like how old will luke be in two years
Mazyrski [523]

Answer:

he will be 17 in

Step-by-step explanation:

8 0
3 years ago
Can Someone Help? Failing Badly in Math. I appreciate it
motikmotik

Answer:

B

Step-by-step explanation:

1/2 * 1 * 2 1/2 = 1 1/4

if theres 8 half unit cubes per unit cube, then we can take the two numbers given to us and divide them by 1 1/4 or 1.25 in decimal

8 0
3 years ago
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