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Kazeer [188]
3 years ago
15

For which value of x will the rational expression below be undefined? Check all that apply. (x-5)(x+2)/x+1 A. -5 B. -1 C. 1 D. 5

E. -2 F. 2
Mathematics
2 answers:
REY [17]3 years ago
7 0

Answer:

<h2><u>Answer </u><u>:</u><u>-</u></h2>

\sf \:  \dfrac{(x - 5)(x + 2)}{x + 1}

Now,

Taking denominator as 0

x + 1 = 0

x = 0 - 1

x = -1

Tresset [83]3 years ago
3 0

Answer:

  • B. -1

Step-by-step explanation:

<u>Given expression:</u>

  • (x-5)(x+2)/(x+1)

<u>This is undefined when the denominator is zero:</u>

  • x + 1 = 0
  • x = -1

Correct choice is B

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3 0
3 years ago
The circumference of one coin is 8.03cm. The circumference of another coin is 0.33cm smaller. A.) what is the first step to find
Burka [1]

Answer:

Diameter of the smaller coin = 2.46 cm

Step-by-step explanation:

Circumference of a coin = 2πr

Circumference of coin A = 8.03 cm

Circumference of coin B = 8.03 cm - 0.33 cm

A.) what is the first step to find the diameter of the smaller coin?

Find the circumference of coin B

Circumference of coin B = 8.03 cm - 0.33 cm

= 7.7 cm

B.) Find the diameter of the smaller coin.

Circumference of a coin = 2πr

7.7 = 2 × 3.14 * r

7.7 = 6.28r

r = 7.7 / 6.28

r = 1.23 cm

Diameter = 2r

= 2 * 1.23 cm

= 2.46 cm

Diameter of the smaller coin = 2.46 cm

4 0
3 years ago
Study the coordinate plane below. A certain polygon has its vertices at the following points: (1, 1), (1, 8), (4, 7), and (4, 3)
jarptica [38.1K]

Answer:

pentegon

Step-by-step explanation:

3 0
3 years ago
A triangle has height 5 cm and base length 8 cm find it’s area
vodka [1.7K]

Answer:

A = 20 cm^2

Step-by-step explanation:

We can find the area of a triangle from

A = 1/2 bh

A = 1/2 8*5

A = 20 cm^2

4 0
3 years ago
Enoch is two times as old as MARTIN.three years ago,the difference between their ages was fifteen years.find their present ages
olga2289 [7]

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Answer:

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Step-by-step explanation:

The difference in ages remains the same over time. Enoch, at twice Martin's age, is still 15 years older. That means Martin is 15 and Enoch is 30.

5 0
3 years ago
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