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3 years ago

10

I need help with another set of math questions.

1 answer:

Anit [1.1K]3 years ago

7 0

For question 11, you essentially need to find when h(t) = 0, since that is when the height of the ball reaches 0 (ie touches the ground).

For question 12, it is asking for a maximum height, so you need to find when dh/dt = 0 and taking the second derivative to prove that there is maximum at t. That will find you the time at which the ball will hit a maximum height.

Rinse and repeat question 12 for question 13

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ayyyy everybody drop what yo type of “aesthetic” is :) i wanna see if any body got the same type of “aesthetic” as me :)

FromTheMoon [43]

Answer:

my aesthetic is kinda like a hello kitty aesthetic :)

Step-by-step explanation:

ye

3 0

4 years ago

Sau 18 tháng, số tiền nợ cả gốc lẫn lãi phải trả là $5200. Số tiền gốc là bao nhiêu nếu lãi suất đơn là 8%/năm?

defon

Answer:

$5836.32

Step-by-step explanation:

$5200 \times {1.08}^{1.5}$

4 0

3 years ago

Please help me ......................

jekas [21]

Answer:

n = 18

Step-by-step explanation:

The formula for angle sum of a polygon is S = 180 (n - 2), where S is the sum and n is the sides.

We are given that the sum is 2880, and are trying to find n.

Simply sub in S = 2880,

2880 = 180 (n - 2)

Divide by 180 to get (n - 2) by themselves on the right side,

16 = n - 2

Now add 2 to the other side to get n by itself

18 = n

n = 18

Hope this helped!! Please feel free to ask me if there's anything you don't understand from this working

3 0

4 years ago

Read 2 more answers

ΔABC and ΔXYZ are similar triangles. If BA = x + 9, AC = x + 7, YX = x + 5, and XZ = x + 4, find the value of x.

Nat2105 [25]

Solution:

we are given that ΔABC and ΔXYZ are similar triangles.

As we know , when two triangles are similar then the ratios of their corrsponding sides are equal.

Here we have

BA = x + 9, AC = x + 7, YX = x + 5, and XZ = x + 4

So we can write

$\frac{x+9}{x+5}= \frac{x+7}{x+4}\\
\\
(x+9)(x+4)=(x+7)(x+5)\\
\\
x^2+13x+36=x^2+12x+35\\
\\
13x-12x=35-36\\
\\
x=-1\\
\\$

Hence then value of x=-1.

3 0

4 years ago

Read 2 more answers

Find the general solution of the following equation: y'(t) = 3y -5

Anton [14]

Answer:

The general solution of the equation is y = $\frac{A}{3}e^{3t}$ + 5

Step-by-step explanation:

Since the differential equation is given as y'(t) = 3y -5

The differential equation is re-written as

dy/dt = 3y - 5

separating the variables, we have

dy/(3y - 5) = dt

dy/(3y - 5) = dt

integrating both sides, we have

∫dy/(3y - 5) = ∫dt

∫3dy/[3(3y - 5)] = ∫dt

(1/3)∫3dy/(3y - 5) = ∫dt

(1/3)㏑(3y - 5) = t + C

㏑(3y - 5) = 3t + 3C

taking exponents of both sides, we have

exp[㏑(3y - 5)] = exp(3t + 3C)

3y - 5 = $e^{3t}e^{3C}$

3y - 5 = $Ae^{3t}$ $A = e^{3C}$

3y = $Ae^{3t}$ + 5

dividing through by 3, we have

y = $\frac{A}{3}e^{3t}$ + 5

So, the general solution of the equation is y = $\frac{A}{3}e^{3t}$ + 5

3 0

4 years ago