1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
katrin [286]
3 years ago
7

An elevator descends at a constant speed. What is the change in elevation after 19 seconds?

Mathematics
2 answers:
trapecia [35]3 years ago
7 0

Answer:

he total time is 4 seconds. The elevator descends 10 feet each second so the total is:

 

4seconds x -10 feet/sec = -40 feet

 

The total change in elevation is -40 feet. You need the negative sign because the elevator is moving downward. Hope this helps!

 

LUCKY_DIMON [66]3 years ago
6 0

Answer:

19

Step-by-step explanation:

You might be interested in
Michelle spent $32 on hot dogs and hamburgers. Hot dogs were $5 and hamburgers $6.if she bought a total of 6 items .how many of
galben [10]
The answer is B 4 hot dogs = $20 and two hamburgers = $12 so 20 plus 12 equals 32 so the answer is B
5 0
3 years ago
Read 2 more answers
Let f(x)= x^2-4x-c. Find a nonzero value of c such that f(c)=c.​
Dimas [21]

Answer:

The nonzero value of c will be:

  • c = 6

Step-by-step explanation:

Given the function

f\left(x\right)=\:x^2-4x-c

f\left(c\right)=\:c^2-4c-c

as

f(c) = c

so

c=\:c^2-4c-c

switching the sides

c^2-4c-c=c

subtract c from both sides

c^2-4c-c-c=c-c

c^2-6c=0

c\left(c-6\right)=0

Using the zero factor principle

\:If}\:ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)

c=0\quad \mathrm{or}\quad \:c-6=0

so, the solutions to the quadratic equations are:

c=0,\:c=6

Therefore, a nonzero value of c will be:

  • c = 6
5 0
3 years ago
Circle O has a circumference of 36tt cm. what is length of the radius r
allochka39001 [22]

Answer:

5.73cm

Step-by-step explanation:

Given parameters:

Circumference of the circle = 36cm

Unknown

Length of the radius = ?

Lets represent the radius by r

Solution

The circumference of a circle is the defined as the perimeter of a circle. The formula is given as:

            Circumference of a circle = 2πr

Since the unknown is r, we make it the subject of the formula:

           r = \frac{circumference of the circle}{2π}

          r = \frac{36}{2 x 3.142} = \frac{36}{6.284} = 5.73cm

3 0
3 years ago
Read 2 more answers
I need help with 4th grade math please show the problem and strategies thank you so much​
irakobra [83]
70 palm trees are on that street
7 0
2 years ago
Can somebody help me?
SashulF [63]
ANSWER: Is Not and Can Not
3 0
2 years ago
Other questions:
  • Two models of a product - Regular (X) and Deluxe (Y) - are produced by a company. A linear programming model is used to determin
    8·1 answer
  • 6c^3 +30c / 3c^2 + 15
    9·1 answer
  • I need help <br><br><br><br><br><br> thx people!!!!
    12·2 answers
  • 47% of 250 is what number
    14·2 answers
  • Please help me out with this!!!!!!
    8·2 answers
  • Suppose the number of inches of rainfall each year in a city is normally distributed. For a random sample of years, the confiden
    6·1 answer
  • A box has demensions of 17in long 1.3 ft wide and 8in high what is the volume of the Box? The formula for the volume is v=1 w•h.
    5·1 answer
  • A gym membership in 2010 was $8,700. Now it is $6,400.
    7·1 answer
  • 3+5 plz help will gibe brain
    10·2 answers
  • What is the total fare with 15% tip for 2 passengers traveling 412 miles?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!