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3 years ago

If f(x) = 3x + 7, find: f(3) = [?] Enter

1 answer:

5 0

F(3)= 16. Essentially, you need to substitute 3 for x, which would look like this: 3(3) + 7. Then, by using PEMDAS/the order of operations, multiply 3 by 3 to get 9, and then add 7 to get 16.

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How to solve 4x / 2 = -5

patriot [66]

Answer:

Step-by-step explanation:

4x/2= -5

4x= -5*2

2x= -5

x= -5/2

6 0

3 years ago

Read 2 more answers

If the current temperature is -11°F, what change in temperature would result in a final temperature of -27°F?

kirill [66]

-7 F I think is the answers

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3 years ago

The equation y=1/3xis the boundary line for the inequality y>1/3x. Which sentence describes the graph of the inequality

Irina18 [472]

If th<span>e equation y=1/3x is the boundary line for the inequality y>1/3 x, then the solution set is illustrated by shading the area ABOVE the line y=(1/3)x.</span>

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3 years ago

What is the slope of the line that goes through the points (1,-5) and (4,1)?

lesya692 [45]

Answer: m = 2

Step-by-step explanation:

What we know:

The slope needs to pass through the points (1, -5) and (4, 1)
There are 4 potential slopes given to us- only one is correct
We need to find the slope and make sure it is an option

How to solve:

By using the slope equation and the two points given to us, we can calculate the slope.

Process:

Set up equation (y2 - y1) / (x2 - x1)

Substitute (1 +5 ) / (4 - 1)
Simplify 6 / 3
Simplest form 2/ 1 =

Slope = 2

Solution: m = 2

4 0

2 years ago

Find the values of x, y and z from the given parallelograms.<br>please help please it's a request

Dmitry [639]

Answer:

(ii) (x, y, z) = (110°, 30°, 30°)

(iii) (x, y, z) = (110°, 70°, 70°)

Step-by-step explanation:

The things you need to know and use are ...

Opposite angles of a parallelogram are congruent.

Adjacent angles of a parallelogram are supplementary.

Alternate interior angles between a transversal and parallel lines are congruent.

Corresponding angles where a transversal crosses parallel lines are congruent.

(ii) Angles B and D are opposite, so congruent:

x = 110°

Angle DAB is supplementary to angle B, so is 70°. That means z is ...

z = 70° -40° = 30°

Angle y is "alternate interior" relative to z, so is congruent to z:

y = 30°

(iii) Angle x is adjacent to angle N, so is supplementary to 70°.

x = 180° -70° = 110°

Angle y is opposite angle N, so is congruent.

y = 70°

Angle z is corresponding to angle N, so is congruent. (It is also "alternate interior" with respect to angle y, so is congruent to y.)

z = 70°

8 0

3 years ago