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ladessa [460]
2 years ago
13

9/4 divided by 3/7 i need some help on this one :)

Mathematics
1 answer:
adell [148]2 years ago
4 0

Answer:

5.25

Step-by-step explanation:

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Find the area of each polygon created by the coordinates (4,4), (7, -1), (7,-4), (1,-4), (1, -1)
mrs_skeptik [129]

Step-by-step explanation:

thats what I got hope this helped you out

8 0
4 years ago
On the day that a certain celebrity proposes marriage, 101010 people know about it. Each day afterward, the number of people who
AnnyKZ [126]

Answer:

n(t) = 101010(3^t)

Step-by-step explanation:

The initial number of people who knew about it is;

n(0) = 101010

The number of people who will have known in a day's time;

n(1) = 101010(3)

The number of people who will have known in 2 day's time;

n(2) = 101010(3)(3) = 101010(3^2)

The number of people who will have known in 3 day's time;

n(3) = 101010(3)(3)(3) = 101010(3^3)

Therefore, the total number n(t) of people who know about the celebrity proposing t days after the celebrity proposes becomes;

n(t) = 101010(3^t)

7 0
4 years ago
Read 2 more answers
F (x) = 2 (x + 1)^2 - 1
Ivenika [448]

Answer:

Equation: y = x²

  • (-2, 4)
  • (0, 0)
  • (2, 4)

Equation: f(x) = 2(x + 1)² - 1

  • (-2, 1)
  • (0, 1)
  • (2, 17)

Step-by-step explanation:

Equation: y = x²

  • when x = -2, y = (-2)² = 4 ⇒ (-2, 4)
  • when x = 0, y = (0)² = 0 ⇒ (0, 0)
  • when x = 2, y = (2)² = 4 ⇒ (2, 4)

Equation: f(x) = 2(x + 1)² - 1

f(-2) = 2(-2 + 1)² - 1

      = 2(-1)² - 1

      =2(1) - 1

     = 1

Therefore, (-2, 1)

f(0) = 2(0 + 1)² - 1

     = 2(1)² - 1

      =2(1) - 1

     = 1

Therefore, (0, 1)

f(2) = 2(2 + 1)² - 1

     = 2(3)² - 1

      =2(9) - 1

     = 17

Therefore, (2, 17)

5 0
3 years ago
Evaluate the line integral ∫cf⋅dr, where f(x,y,z)=5xi−4yj+3zk and c is given by the vector function r(t)=⟨sint,cost,t⟩, 0≤t≤3π/2
Katena32 [7]

WIth the parameterization

\mathbf r(t)=\langle\sin t,\cos t,t\rangle

we end up with

\mathbf f(\mathbf r(t))=\mathbf f(\sin t,\cos t,t)=5\sin t\,\mathbf i-4\cos t\,\mathbf j+3t\,\mathbf k

We also have

\mathrm d\mathbf r=\mathbf r'(t)\,\mathrm dt=\langle\cos t,-\sin t,1\rangle\,\mathrm dt

So in the line integral, we get

\displaystyle\int_{\mathcal C}\mathbf f\cdot\mathrm d\mathbf r=\int_{t=0}^{t=3\pi/2}\mathbf f(\mathbf r(t))\cdot\mathbf r'(t)\,\mathrm dt

=\displaystyle\int_{t=0}^{t=3\pi/2}(9\sin t\cos t+3t)\,\mathrm dt=\frac98(3\pi^2+4)

8 0
3 years ago
What's 24 -3 (7-5) to the power of two over (+8) (-6) ÷ (+12)?
Marysya12 [62]

Answer:

45%

Step-by-step explanation:

45%

4 0
3 years ago
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