SOLVE 10 PLEASE HELP ME I AM VERY CONFUSED. THIS IS DUE IN 10 MINUTES. WILL MARK AS BRAINIEST ANSWER IF CORRECT

Mathematics

2 answers:

MrRa [10]3 years ago

7 0

I need to see the whole graph

Gwar [14]3 years ago

5 0

Answer:

1) make an x, y chart for both equations

2) make random x values: (I chose -4 to 3)

3) plug in x values to find the solution to y values

4) the point that is a solution to both is (-2,2)

5) remember a variable can't be negative. so in the second equation don't forget to change the variable positive and number opposite of what it is

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If the relationship between the number of tickets sold and the number of hours proportional ? If so, how many tickets were sold

harkovskaia [24]

Answer:

t = 640

Step-by-step explanation:

tickets are directly proportional to number of hours.

t =kh

we find K.

240 = 3k

we divide by 3 in both sides.

k = 80

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2 years ago

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EastWind [94]

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3 years ago

Find the solution r(t)r(t) of the differential equation with the given initial condition: r′(t)=⟨sin4t,sin7t,9t⟩,r(0)=⟨9,8,3⟩

Makovka662 [10]

$\mathbf r'(t)=\langle\sin4t,\sin7t,9t\rangle$
$\implies\mathbf r(t)=\displaystyle\int\mathbf r'(t)\,\mathrm dt$
$\mathbf r(t)=\displaystyle\left\langle\int\sin4t\,\mathrm dt,\int\sin7t\,\mathrm dt,\int9t\,\mathrm dt\right\rangle$
$\mathbf r(t)=\left\langle-\dfrac14\cos4t+C_1,-\dfrac17\cos7t+C_2,-\dfrac92t^2+C_3\right\rangle$

With $\mathbf r(0)=\langle9,8,3\rangle$ , we have

$\langle9,8,3\rangle=\left\langle-\dfrac14+C_1,-\dfrac17+C_2,C_3\right\rangle$
$\implies C_1=\dfrac{37}4,C_2=\dfrac{57}7,C_3=8$
$\implies\mathbf r(t)=\left\langle-\dfrac14\cos4t+\dfrac{37}4,-\dfrac17\cos7t+\dfrac{57}7,-\dfrac92t^2+8\right\rangle$