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3 years ago

Can you tell me what that is I don't have a calculate

Mathematics

2 answers:

yan [13]3 years ago

7 0

3.8 is the answer I got from my calculator.

kicyunya [14]3 years ago

3 0

The answer is 5 and i am writing this other stuff because it said my answer was short

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spencer is on a mountain 11,224 feet above sea level. Heidi is on a submarine 3703 feet below sea level in a direct line below S

Alex

Since heidi is on a submarine 3703 below, we could say that she's -3703 and spencer is 11,224. 11224-(-3703)=14927

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3 years ago

What is the point of symmetry for the circle (x + 2)2 + (y â 4)2 = 25?

irina [24]

It's its center:

(-2, 4)

Can't read y-4 or y+4, change the sign.

y-4 ---> SOLUTION: (-2,4)

y+4 ---> SOLUTION: (-2, -4)

3 0

2 years ago

The cast of the play makes 275 programs for 5 shows. How many programs will be needed for 13 shows?

Advocard [28]

715 because 275/5= 55 then 55x13 will give you 715

8 0

3 years ago

A door of a lecture hall is in a parabolic shape. The door is 56 inches across at the bottom of the door and parallel to the flo

Arada [10]

Answer:

The parabolic shape of the door is represented by $y - 32 = -\frac{2}{49}\cdot x^{2}$ . (See attachment included below). Head must 15.652 inches away from the edge of the door.

Step-by-step explanation:

A parabola is represented by the following mathematical expression:

$y - k = C \cdot (x-h)^{2}$

Where:

$h$ - Horizontal component of the vertix, measured in inches.

$k$ - Vertical component of the vertix, measured in inches.

$C$ - Parabola constant, dimensionless. (Where vertix is an absolute maximum when $C < 0$ or an absolute minimum when $C > 0$ )

For the design of the door, the parabola must have an absolute maximum and x-intercepts must exist. The following information is required after considering symmetry:

$V (x,y) = (0, 32)$ (Vertix)

$A (x, y) = (-28, 0)$ (x-Intercept)

$B (x,y) = (28. 0)$ (x-Intercept)

The following equation are constructed from the definition of a parabola:

$0-32 = C \cdot (28 - 0)^{2}$

$-32 = 784\cdot C$

$C = -\frac{2}{49}$

The parabolic shape of the door is represented by $y - 32 = -\frac{2}{49}\cdot x^{2}$ . Now, the representation of the equation is included below as attachment.

At x = 0 inches and y = 22 inches, the distance from the edge of the door that head must observed to avoid being hit is:

$y -32 = -\frac{2}{49} \cdot x^{2}$