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Over [174]
3 years ago
11

|x + 5| – |2w| When x = 2 and w = –4

Mathematics
2 answers:
Vitek1552 [10]3 years ago
4 0
15
(2 + 5) - (2 x -4) = 15
7 - -8
Minus a negative goes upwards.
15
MariettaO [177]3 years ago
4 0

Answer:

-1

Step-by-step explanation:

lx+5l -- l2wl

l2+5l -- l2x-4l

7 -- l2x-4l

7 -- 8

-1

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A sea bird is 28 meters above the surface of the ocean.What is its elevation?
Citrus2011 [14]

Answer:

91.8 ft above sea level

Step-by-step explanation:

Note that 1 meter is approx. 3.28 feet.

Converting 28 meters to feet is accomplished by multiplying 28 m by the conversion factor 3.28 ft  /  1 m:

28 m     3.28 ft

-------- * ----------- = 91.8 ft above sea level

  1           1 m

4 0
3 years ago
How do you solve the three forms: Slope Y-intercept form Standard Form Point slope form
Nostrana [21]

Answer:An equation in the slope-intercept form is written as

y=mx+b

Where m is the slope of the line and b is the y-intercept. You can use this equation to write an equation if you know the slope and the y-intercept.

Example

Find the equation of the line

Choose two points that are on the line

Calculate the slope between the two points

m=y2−y1x2−x1=(−1)−33−(−3)=−46=−23

We can find the b-value, the y-intercept, by looking at the graph

picture28

b = 1

We've got a value for m and a value for b. This gives us the linear function

y=−23x+1

In many cases the value of b is not as easily read. In those cases, or if you're uncertain whether the line actually crosses the y-axis in this particular point you can calculate b by solving the equation for b and then substituting x and y with one of your two points.

We can use the example above to illustrate this. We've got the two points (-3, 3) and (3, -1). From these two points we calculated the slope

m=−23

This gives us the equation

y=−23x+b

From this we can solve the equation for b

b=y+23x

And if we put in the values from our first point (-3, 3) we get

b=3+23⋅(−3)=3+(−2)=1

If we put in this value for b in the equation we get

y=−23x+1

which is the same equation as we got when we read the y-intercept from the graph.

To summarize how to write a linear equation using the slope-interception form you

Identify the slope, m. This can be done by calculating the slope between two known points of the line using the slope formula.

Find the y-intercept. This can be done by substituting the slope and the coordinates of a point (x, y) on the line in the slope-intercept formula and then solve for b.

Once you've got both m and b you can just put them in the equation at their respective position.

4 0
3 years ago
What does 28+87÷3⋅2^3 equal
11111nata11111 [884]

Answer:

260

Step-by-step explanation:

28+29(23)

=28+(29)(8)

=28+232

7 0
2 years ago
Read 2 more answers
The coordinates of Trapezoid EFGH are E(8, 8), F(8,10), G(1, 6), and H(4, 1). The image of EFGH under dilation is E’F’G’H’.
Sergeu [11.5K]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

Below are the choices:

A) (2, 6) 
<span>B) (4, 6) </span>
<span>C) (2, 5) </span>
<span>D) (4, 5)
</span>
The answer should be: (4, 5)
<span>E = (8, 8) -----> E' = (4, 4) = (8/2, 8/2) 
</span><span>F = (8, 10) -----> F' = (8/2, 10/2) = (4, 5)</span>
5 0
3 years ago
Sarah is trying to convince her friend Brianna that the exponential function f(x) = 2x will eventually grow larger than the poly
atroni [7]
C) 1000.

2^1000 = 1^301, whereas 1000^30 is 1^90
5 0
3 years ago
Read 2 more answers
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