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aleksandrvk [35]
2 years ago
14

PLSSS HLEPP ME OUTT ITS URGENTTTT​

Mathematics
1 answer:
8090 [49]2 years ago
6 0
Let the numbers be 7x and 4x
According to question
7x-4x =57
3x =57
X=57/3
X=19
So the numbers are
7x=7*19=133
4x=4*19=76
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3 years ago
A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y=2−x2. What are the dimensions of su
Paul [167]

Answer:

Step-by-step explanation:

Given that a rectangle is inscribed with its base on the x-axis and its upper corners on the parabola

y=2-x^2

the parabola is open down with vertex at (0,2)

We can find that the rectangle also will be symmetrical about y axis.

Let the vertices on x axis by (p,0) and (-p,0)

Then other two vertices would be (p,2-p^2) (-p,2-p^2) because the vertices lie on the parabola and satisfy the parabola equation

Now width = 2-p^2

Area = l*w = 2(2p-p^3)

Use derivative test

I derivative = 2(2-3p^2)

II derivative = -12p

Equate I derivative to 0 and consider positive value only since we want maximum

p = \sqrt{\frac{2}{3} }

Thus width= \sqrt{\frac{2}{3} }

Length =2\sqrt{\frac{2}{3} }

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3 0
3 years ago
Tell whether each equation has one, zero, or infinitely many solutions.
amid [387]

Answer:

Exactly One Solution

Step-by-step explanation:

4x + 2 = x + 8

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7 0
2 years ago
Read 2 more answers
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guapka [62]
The fraction form would be 4 3/100
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3 years ago
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49

2. [2,197^(1/3)]^2
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6. [3rdrt(216^2)]
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Hope this helps!
5 0
2 years ago
Read 2 more answers
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