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3 years ago

12

you sit down to take a true or false test with 7 questions. If you randomly guess on all questions, how many possible outcomes a

re there for the 7 question test.

1 answer:

kozerog [31]3 years ago

6 0

Answer: 128

I just took the quiz on apex

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For which value of x does f(x) = 2

laila [671]

Answer:

<h2>x = -4</h2>

Step-by-step explanation:

<em>Look a the picture</em>.

Draw the horizontal line <em>y = 2</em>.

Common point: (-4, 2).

Conclusion: f(x) = 2 → x = -4

8 0

3 years ago

On a coordinate plane, a dashed straight line has a negative slope and goes through (0, 2) and (4, 0). Everything below and to t

yanalaym [24]

Answer:

Option C.

Step-by-step explanation:

A dashed straight line has a negative slope and goes through (0, 2) and (4, 0).

The given inequality is

$y$

We need find the point which is a solution to the given linear inequality.

Check the given inequality for point (2, 3).

$3$

$3$

This statement is false. Option 1 is incorrect.

Check the given inequality for point (2, 1).

$1$

$1$

This statement is false. Option 2 is incorrect.

Check the given inequality for point (3, -2).

$-2$

$-2$

This statement is false. Option 3 is correct.

Check the given inequality for point (-1,3).

$3$

$3$

This statement is false. Option 4 is incorrect.

Therefore, the correct option is C.

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3 years ago

Write an absolute value inequality for the graph below.<br>use x for your variable.<br>

Alenkasestr [34]

Step-by-step explanation:

The magnitude of x is equal or less than 7.

=> We have |x| <= 7.

7 0

3 years ago

Choose the equation of the line that is parallel to the y-axis.

kodGreya [7K]

Answer:

x=-2

Step-by-step explanation:

If x always = -2, it is a straight vertical line which means it is parallel to the y axis

4 0

3 years ago

Read 2 more answers

[50 pts] An even number, n, times the next consecutive number, n + 2, is equal to 168. Find the original number.

ale4655 [162]

<u>We are given:</u>

An even number 'n', multiplied by the next consecutive even number is 168

<u>Solving for n:</u>

From the given statement, we can say that:

n(n+2) = 168 [<em>n multiplied by the next even number 'n+2'</em>]

n² + 2n = 168

n² + 2n - 168 = 0 [<em>subtracting 168 from both sides</em>]

We can see that we now have a quadratic equation, solving using splitting the middle term

n² + 14n - 12n - 168 = 0

n(n + 14) -12(n + 14) = 0 <em>[factoring out common terms</em>]

(n-12)(n+14) = 0

Here, we can divide both sides by either (n-12) OR (n+14)

Checking the result in both the cases:

(n + 14) = 0/(n-12) (n-12) = 0/(n+14)

n + 14 = 0 n - 12 = 0

n = -14 n = 12

Both these values are even and since we are not told if the number 'n' is positive or negative, both 12 and -14 are the possible values of n

4 0

3 years ago