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cluponka [151]
3 years ago
7

P(t)=4t-5; find p(r-2)

Mathematics
1 answer:
Sedaia [141]3 years ago
5 0

Answer:

im to stupid for this

Step-by-step explanation:

LIGHTNING MCQUEEEEEEENNNNNNNNN

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The graph below shows the height an elevator travels, y, in x seconds:
ad-work [718]

9514 1404 393

Answer:

  25 (ft/s)

Step-by-step explanation:

The "rate of change" is taken to mean the "rise" divided by the "run". Here, adjacent points differ in their y-value by 25 ft and their x-value by 1 second.

The rate of change is ...

  rise/run = (25 ft)/(1 second) = 25 ft/second

Usually, we're just interested in the numerical value: 25.

_____

<em>Additional comment</em>

The graph is mis-labeled. It is not showing "rate of ascent." It is showing height as a function of time. The "rate of ascent" is the <em>slope</em> of the line on the graph, not its <em>value</em>.

6 0
2 years ago
Timothy has $1111 and Mary has $777. How much money does Timothy need to give Mary, so that they would have the same amount of m
ZanzabumX [31]

Answer:

167

We do 1111+777 for the total and that is 1888

1888/2=944

then 1111-944=167; then they will have equal amounts!!

LUV YA!!

3 0
3 years ago
The sides of a rectangle are in the ratio 5 : 4. If the perimeter of the rectangle is 360 cm , find its area
djverab [1.8K]

Answer:

Step-by-step explanation:

let, the length is z

thus the ratio will be 5z : 4z

perimeter = 2 (a + b)

360 = 2 ( 5z + 4z )

180 = 9z

z = 20 cm

length = 100 cm and width = 80cm

area = length * width

area = 100*80

area = 8000cm²

4 0
2 years ago
Can you help me with #6??<br>(Algebra 1 sucks..)​
Lina20 [59]

Answer:

37

Step-by-step explanation:

Use the given functions to set up and simplify  

6 0
3 years ago
Which of all the following inequalities is true for all real values of x?
siniylev [52]

Answer:

  C.  1/(x^2 +1) > 0

Step-by-step explanation:

The cube of a negative number is negative, eliminating choices B and D for certain negative values of x.

1/x^2 is undefined for x=0, so cannot be compared to zero.

The value 1/(x^2+1) is positive everywhere, so that is the expression you're looking for.

  1/(x^2 +1) > 0

3 0
3 years ago
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