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2 years ago

Brian says that ABCD is a right triangle. Is he correct? (Do the numbers 1 point

Mathematics

1 answer:

Amanda [17]2 years ago

8 0

Answer:

Brain is wrong, BCD is not a right triangle

Neither is ABCD for that matter, it isn't even a triangle :)

Step-by-step explanation:

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Could someone pls help me if you know it thank you!:)

fenix001 [56]

Answer:

Step-by-step explanation:

The full pie chart will equal 100%

So we can add all the percentages together and then subtract that percentage from 100 and whatever's left is the parentage that they attend school.

12+3+5+10+5+35

100-70

They spend 30% attending school

Don't be afraid to reach out for further assistance. Hope this helps!

4 0

2 years ago

Function g is graphed. Find lim when x approaches 0 (2g(x)). HURRY

Tpy6a [65]

There is a good expensive lot in Minecraft

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2 years ago

Factor completely <br> 4x^2 + 24x - 64

lara31 [8.8K]

First see you can factor out 4. What is left is x^2 + 6x - 16.
That can be factored as (x+8)(x-2) so the total factorization is

4(x+8)(x-2)

7 0

2 years ago

The rate of change of the number of mountain lions N(t) in a population is directly proportional to 725 - N(t), where t is the t

wolverine [178]

Answer:

a) The implied differential equation is $\frac{dN}{725 - N} = kdt$

b) The general equation is $N = 725 - C e^{-kt}$

c) The particular equation is $N = 725 - 325 e^{-0.49t}$

d) The population when t = 5, N(5) = 697 = 700( to the nearest 50)

Step-by-step explanation:

The rate of change of N(t) can be written as dN/dt

According to the question, $\frac{dN}{dt} \alpha (725 - N(t))$

$\frac{dN}{dt} = k (725 - N)\\\frac{dN}{725 - N} = kdt$

Integrating both sides of the equation

$\int {\frac{1 }{725 - N}} \, dN = \int {k} \, dt\\- ln (725 - N) = kt + C\\ ln (725 - N) = -(kt + C)\\725 - N = e^{-(kt + C)} \\725 - N = e^{-kt} * e^{-C} \\725 - N = C e^{-kt}\\N = 725 - C e^{-kt}$

When t = 0, N = 400

$400 = 725 - C e^{-k*0}\\400 = 725 - C\\C = 725 - 400\\C = 325$

When t = 3, N = 650

$650 = 725 - (325 * e^{-3k})\\325 * e^{-3k} = 75\\e^{-3k} = 75/325\\e^{-3k} = 0.23\\-3k = ln 0.23\\-3k = -1.47\\k = 1.47/3\\k = 0.49$

The equation for the population becomes:

$N = 725 - 325 e^{-0.49t}$

At t = 5, the population becomes:

$N = 725 - 325 e^{-0.49*5}\\N = 725 - 325 e^{-2.45}\\N = 696.95\\N(5) = 697$

N(5) = 700 ( to the nearest 50)

6 0

2 years ago

Rose purchased 2 packs of red pens, 4 packs of black pens, and 3 packs of blue pens. The cost of each pack of pens was $2.50. Th

Nutka1998 [239]

Answer:

each pack costs 2.5, she bought x packs

x=2+4+3=9

she bought 9 packs

so 2.5 times 9=22.50

she spend $22.50

6 0

2 years ago

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