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3 years ago

For what values of x is the rational expression below undefined? Cheack all that apply x+8 over x2- 2x- 24

Mathematics

2 answers:

Nimfa-mama [501]3 years ago

8 0

2 times because 2 times is like 2time 8=16

Vlad1618 [11]3 years ago

3 0

Factoring the denominator we get (x -6)(x+4), therefore x = 6 and x = -4
These two values would make the rational expression undefined.

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What is the value of x? a.50 b.150 c.30 d.100

Aleks04 [339]

A triangles is 180 degrees. 100+50=150.
180-150=30
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3 years ago

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Margaret wants to cover a footrest in the shape of a rectangular prism with cotton fabric. The footrest is 18 in. 12 in. 10 in.

user100 [1]

Answer:

No, she cannot completely cover the footrest.

Step-by-step explanation:

First of all, we need to find the total surface area of the prism to be covered using the cotton cloth

the total surface area of the prism is

A = 2wl + 2lh + 2hw,

l is the length of the prism = 18 in,

w= width of the prism = 12 in,

h is the height of the prism = 10 in

hence $A = 2(12 \times 18 ) + 2(18 \times 10) + 2(10 \times 12)=1032in^{2}$

We need to convert the area of the fabric to be in the same unit as that of the prism

Area of cotton fabric = $1 yd^{2}= 1296 in ^{2}$

since the surface area of the foot rest is more than the area of fabric she has, she cannot completely cover the footrest

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3 years ago

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Lin runs 5 laps around a track in ten minutes how many laps per minute

eimsori [14]

2 minutes per lap. I think

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3 years ago

I Need Help thanks :)?

Feliz [49]

Answer:

6) x = 40.5

8) x = 16.5

Step-by-step explanation:

6) 45/x = 20/18

simplify and cross-multiply to get:

45/x = 10/9

10x = 405

x = 40.5

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3 years ago

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Ray Of Light [21]

Answer:

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Step-by-step explanation:

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3 years ago