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Karo-lina-s [1.5K]
3 years ago
11

A

Mathematics
1 answer:
Mashutka [201]3 years ago
8 0

Answer:

3,378.70

Step-by-step explanation:

First, find the total amount Henry spends a month. 25.30 for printer ink and 52 for advertising. 25.30+52=$77.30.

Subtract what he has spent from what he has made.

3,456-77.30=3,378.70

That is his profit.

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4 years ago
A potato was launched in the air using a potato gun. The function for the situation was h(t)=-16t^2 +100t+10, where t was the ti
Goshia [24]

Answer:

The height equation is:

h(t)=-16t^2 +100t+10

A) To find the maximum height, we must find the time where the velocity is 0, so we must derive it with respect to the time.

v(t) = -2*16*t + 100 = 0

       t = 100/(2*16) = 3.125s

Now we put this time in our height equation:

h(3.125s) = -16*3.125^2 + 100*3.125 + 10 = 166.25 ft.

B) The lowest heigth of the potato will be h = 0ft, when the potato hits the ground.

C) the lowest time that works for that function is t = 0s, when the potato is fired by the gun.

D) the maximum time can be finded when the potato hits the ground, afther that point the equation does not work anymore, let's find it,

h(t) = 0 = -16t^2 +100t+10

we can solve it using Bhaskara's equation:

t = \frac{-100 +- \sqrt{100^2 +4*16*10} }{-2*16} = \frac{-100 +- 103.2}{-32}

So the two solutions are:

t = 6.3s

t = -0.1s

We need to chose the positive time, as we already discused that the minimum time that works for the equation is t = 0s.

so here the answer is t = 6.3s

E) the domain is  0s ≤ t ≤ 6.3s

The range is 0ft ≤ h ≤ 166.25 ft.

4 0
3 years ago
Four consecutive even integers add up to 372. What are the integers​
stepan [7]

Answer:

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Step-by-step explanation:

Let the three consecutive even integers be x, (x + 2), (x +4) & (x + 6)

\therefore \: x + (x + 2) + (x + 4) +(x +6)= 372 \\  \therefore \:4x + 12 = 372\\ \therefore \:4x  = 372 - 12 \\ \therefore \:4x  = 360 \\ \therefore \:x  =  \frac{360}{4} \\   \therefore \:x  =90 \\ x + 2 = 90 + 2 = 92 \\ x + 4 = 90 + 4 = 94\\x + 6= 90 + 6= 96 \\

Hence, the three consecutive even integers are 90, 92, 94, 96.

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3 years ago
W=2(x-y) solve for x
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