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swat32
3 years ago
5

When asked to factor the trinomial , a student gives the answer (x – 7)(x + 7). Which of the following statements is true?

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
6 0
The following statement is true because when u simplify your answer then your answered would be x^2-49
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1)The graph of the function y = 4x does not pass through the origin.
Gemiola [76]

Answer:

The correct options are:

Option B) 4^x is never zero.

Option F) When x=0, y≠0

Step-by-step explanation:

Consider the provided function.

y=4^x

When we substitute x=0 in above function we get:

y=4^{0}

y=1

When we substitute x=-1 in above function we get:

y=4^{-1}

y=0.25

When we substitute x=1 in above function we get:

y=4^{1}

y=4

The above function is exponential function which does not pass through the origin and the range of the function is a positive number.

The graph of the function is shown in figure 1.

Now consider the provided options.

Option A) 4^x is always greater than or equal to 1.

The option is incorrect as the value of the function is less than 1 for negative value of x.

Option B) 4^x is never zero

The option is correct.

Option C) When y=0, x=0

The option is incorrect.

Option D) When x=0, y=4

When x=0 the value of y is 1.

Thus, the option is incorrect.

Option E) 4^x is zero when x=0

When x=0 the value of 4^x is 1.

Thus, the option is incorrect.

Option F) When x=0, y≠0

The option is correct as 0≠1.

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Answer:

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Step-by-step explanation:

6 0
3 years ago
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four cups of pure water are added to a 20-cup bowl of punch that is 75% juice. What percent of the new punch us juice?
olasank [31]
Juice is 20-cup * 75% = 15-cup, now water and juice are in total (4+20)-cup, so the percent of juice should be 15/24=62.5%
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Answer:

2.5

Step-by-step explanation:

2.5 is the constant of proportionality

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Margarita [4]

Answer:

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Step-by-step explanation:

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