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2 years ago

Help!!! evaluate peicewise functions

Mathematics

1 answer:

aksik [14]2 years ago

4 0

Answer:

Step-by-step explanation:

You choose the middle one because 3<(4)<10 makes sense where as the other ones don't when you plug in 4. Then you solve the equation which is x^2-7 and then you get 16-7 which is 9.

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Common Denominator of 7-4-9-3-8

Verizon [17]

Whats 7-4-9-3-8 mean

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2 years ago

What expressions are equivalent to -56z + 28

makvit [3.9K]

Answer:

3b+b and 2(2b)

Step-by-step explanation:

4 0

3 years ago

Help me plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz tired

LenKa [72]

So, y-intercept is (0,3) and x-intercept is (3/7,0)

Step-by-step explanation:

We are given:

$y=-7x+3$

We need to find y-intercept and x-intercept

Finding y-intercept

To find y-intercept we put x =0

Solving:

$y=-7x+3\\y=-7(0)+3\\y=3$

So, y-intercept is (0,3)

Finding x-intercept

To find x-intercept we put y =0

Solving:

$y=-7x+3\\0=-7x+3\\-7x=-3\\x=-3/-7\\x=3/7$

So, x-intercept is (3/7,0)

So, y-intercept is (0,3) and x-intercept is (3/7,0)

Keywords: x and y intercepts

Learn more about x and y intercepts at:

#learnwithBrainly

6 0

3 years ago

Identify an equation in slope-intercept form for the line parallel to y = 5x + 2

Elanso [62]

Answer:

D. y = 5x + 29

Step-by-step explanation:

To write an equation of a line in slope-intercept form, we need to find the slope and the y-intercept.

The equation of a line is y=mx + b.

x and y are the coordinates of any point on a line.

m is the slope.

b is the y-intercept.

Lines are parallel to each other when they have the same slope. A line parallel to y = 5x + 2 would also have the slope 5.

m = 5

Since we have a point on the line, (-6, -1) and the slope, 5, there is only one missing variable, b, the y-intercept.

Substitute the known information into the equation and isolate b.

y = mx + b

-1 = 5(-6) + b <=Simplify by solving 5 X -6

-1 = -30 + b

-1 + 30 = -30 + 30 + b <= Add 30 to both sides to isolate b

29 = b

b = 29 <= Standard formatting puts the variable on the left side

Put the m and b values into the equation of a line to solve:

y = mx + b

y = 5x + 29

6 0

2 years ago

Find the area of a regular hexagon

xxMikexx [17]

<h2>Answer:</h2><h2>42 cm^2</h2>

please see the attached picture for full solution

hope it helps...

Good luck on your assignment....

4 0

2 years ago