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podryga [215]
3 years ago
15

Explain why the function is discontinuous at the given number

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
7 0

Answer:

  left limit = 2 ≠ 1/2 = right limit

Step-by-step explanation:

A function is discontinuous if the limit of the function value approaching the point from the left is different than the limit approaching from the right.

Here, the left limit is 2 and the right limit is 1/2. The limits are different, which is why the function is discontinuous at x=-1.

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borishaifa [10]

Answer:

-35

Step-by-step explanation:

7 x -5 = -35

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Which expression means five times the sum of b and two?
mel-nik [20]

Answer:

A. 5(b+2)

Step-by-step explanation:

Five times the sum of b and two

The sum of "b" and "2" means

b + 2

Five times the sum means,

5(b+2)

6 0
4 years ago
Zoe used 3/8 of her ribbon to wrap a present. If she uses 9 feet of ribbon for the present how much ribbon did Zoe have it first
MArishka [77]

Let the total ribbon Zoe had was x feet.

Out of x feet, she used 3/8 part of it.

Hence, \frac{3x}{8}

3/8 part of the original ribbon is equal to 9 feet.

Hence, we get

\frac{3x}{8} = 9

=> Multiply 8 on both sides.

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Divide both sides by 3

\frac{3x}{3}=\frac{72}{3}

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Zoe had 24 feet of ribbon in starting... Answer

8 0
3 years ago
Find the missing angle.
Sphinxa [80]

Answer:

m\angle XYV=135^{\circ}

Step-by-step explanation:

Notice that m\angle XYV=m\angle XYW+m\angle VYW.

The diagram already marks m\angle VYW=80^{\circ}, so we just need to find m\angle XYW.

\angle TYU and \angle XYW are vertical angles, which means they are equal in measure.

Therefore,

m\angle TYU=m\angle XYW=6x+7

Since there are 180^{\circ} on each side of a line, we have the following equation:

m\angle XYW+m\angle VYW+m\angle UYV=180^{\circ},\\6x+7+13+4x+80=180,\\10x+20=100,\\10x=80,\\x=8.

Plugging in x=8, we have:

m\angle XYW=6(8)+7=55^{\circ}.

Therefore,

m\angle XYV=55^{\circ}+80^{\circ},\\m\angle XYV=\fbox{$135^{\circ}$}.

5 0
3 years ago
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