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MA_775_DIABLO [31]

3 years ago

7

The expression x+3/2x-8 is undefined when x=____?

2 answers:

Ostrovityanka [42]3 years ago

8 0

When x equals 6.6666666667

OLga [1]3 years ago

4 0

3.66666666666667 thats what i get

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A bridge is sketched in the coordinate plane as a parabola represented by the equation h=40-0.01x2, where h refers to the height

ElenaW [278]

Answer:

The length of the bridge is 126.492 feet.

Step-by-step explanation:

Let $h(x) = 40-0.01\cdot x^{2}$ , where $x$ is the position from the middle of the bridge, measured in feet, and $h(x)$ is the height of the bridge at a location of x feet, measured in feet. In this case, the length of the bridge is represented by the distance between the x-intercepts of the parabola, which we now find by factorization:

$40-0.01\cdot x^{2} = 0$ (Eq. 1)

$x^{2} = \frac{40}{0.01}$

$x =\pm \sqrt{\frac{40}{0.01} }$

$x = \pm 63.246\,ft$

Given that the parabola is symmetrical with respect to y-axis, then the length is two times the magnitude of the value found above, that is:

$l = 2\cdot (63.246\,ft)$

$l = 126.492\,ft$

The length of the bridge is 126.492 feet.

3 0

3 years ago

1 1/4 x 1 1/3 plsss help

vodka [1.7K]

Answer:

exact form: 5/3

decimal form: 1.6 (6 is repeating)

mixed number form: 1 2/3

Step-by-step explanation:

8 0

2 years ago

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Which equation could be used to solve the question below?

ratelena [41]

Answer:

b

Step-by-step explanation:

83+37=129, 120÷24=5

8 0

3 years ago

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Express the area of the entire rectangle.

Elza [17]

Answer:

Step-by-step explanation:

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2 years ago

A rectangle has a width of 4 inches and a length of 6 inches. A similar rectangle has a width

qaws [65]

Answer:

Step-by-step explanation:

6 times 4 is 24 so the answer is 24

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3 years ago