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motikmotik
3 years ago
7

A hot air balloon is at elevation of 650 feet. After it descends 120 feet, what is the elevation of the balloon?

Mathematics
2 answers:
OleMash [197]3 years ago
7 0

Answer:

530

Step-by-step explanation:

650-120 decends means that its going down.

SVETLANKA909090 [29]3 years ago
4 0

Answer:

530

Step-by-step explanation:

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David wants to build a rectangular fencing with the 5 identical parts for his animals. He has 780 feet of fencing to make it. Wh
Vladimir79 [104]

Answer:

65 ft by 39 ft

Step-by-step explanation:

Let x ft be the length of each part and y ft be the width of each part. The total perimeter of all 5 parts is

6x+10y=780

The length of the large rectangle is 5y ft and the width of the large rectangle is x, so the total area is

A=x\cdot 5y

From the first equation,

y=78-0.6x

Substitute it into the area expression:

A(x)=x\cdot 5(78-0.6x)=390x-3x^2

Find the derivative:

A'(x)=390-3\cdot 2x=390-6x

Equate it to 0:

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Then

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5 0
3 years ago
Given: y = 3x - 4. what is the x-intercept? (0, -4) (0, 4/3) (4/3, 0)
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X intercept is 4/3 because you plug zeros in for y to find the y intercept
4 0
3 years ago
Can you please help me ?<br> What is 27 x 43?
Murljashka [212]

Answer:

1161

Step-by-step explanation:

7 0
3 years ago
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Each of the sides of a square $S_1$ with area $16$ is bisected, and a smaller square $S_2$ is constructed using the bisection po
sweet [91]

Answer:

4 sq. units

Step-by-step explanation:

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3 years ago
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Hope this helps :)
5 0
4 years ago
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