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
azamat
3 years ago
7

Amy can run the 150 meter dash in 50 seconds. John can run 120 meters in 400 seconds. Who runs faster per second?

Mathematics
1 answer:
Wewaii [24]3 years ago
7 0

Answer:

Amy

Step-by-step explanation:

amy completed a longer distance in a shorter amount of time

rather than john completed a shorter distance in a longer time

pls mark me brainliest

You might be interested in
PLZ HELP!!!!!! ASAP! 70 POINTS!<br><br> Factor ax^2−ay−bx^2+cy+by−cx^2
dexar [7]

Answer:

(a-b-c)(X^2-Y)

Step-by-step explanation:

DONE!!

5 0
2 years ago
Read 2 more answers
Can I rotate, translate, or reflect a figure if one figure is larger than the other figure?
lisov135 [29]

Answer:

translate

Step-by-step explanation:

3 0
2 years ago
If 3x^2 + y^2 = 7 then evaluate d^2y/dx^2 when x = 1 and y = 2. Round your answer to 2 decimal places. Use the hyphen symbol, -,
S_A_V [24]
Taking y=y(x) and differentiating both sides with respect to x yields

\dfrac{\mathrm d}{\mathrm dx}\bigg[3x^2+y^2\bigg]=\dfrac{\mathrm d}{\mathrm dx}\bigg[7\bigg]\implies 6x+2y\dfrac{\mathrm dy}{\mathrm dx}=0

Solving for the first derivative, we have

\dfrac{\mathrm dy}{\mathrm dx}=-\dfrac{3x}y

Differentiating again gives

\dfrac{\mathrm d}{\mathrm dx}\bigg[6x+2y\dfrac{\mathrm dy}{\mathrm dx}\bigg]=\dfrac{\mathrm d}{\mathrm dx}\bigg[0\bigg]\implies 6+2\left(\dfrac{\mathrm dy}{\mathrm dx}\right)^2+2y\dfrac{\mathrm d^2y}{\mathrm dx^2}=0

Solving for the second derivative, we have

\dfrac{\mathrm d^2y}{\mathrm dx^2}=-\dfrac{3+\left(\frac{\mathrm dy}{\mathrm dx}\right)^2}y=-\dfrac{3+\frac{9x^2}{y^2}}y=-\dfrac{3y^2+9x^2}{y^3}

Now, when x=1 and y=2, we have

\dfrac{\mathrm d^2y}{\mathrm dx^2}\bigg|_{x=1,y=2}=-\dfrac{3\cdot2^2+9\cdot1^2}{2^3}=\dfrac{21}8\approx2.63
3 0
3 years ago
How to solve inequalities
sertanlavr [38]
Add or subtract numbers from both sides
4 0
3 years ago
What is the size of the sample space for flipping 7 coins? Write your answer as a single integer.
Elenna [48]
I think the answer is 6
4 0
2 years ago
Read 2 more answers
Other questions:
  • Which of the following is an example of a rational number that is not an integer?<br> 4 , 0 , 1/5
    6·2 answers
  • What numbers have an absolute value of 2 1/2
    7·1 answer
  • Please please answer this correctly I have to finish the sums today
    10·1 answer
  • there are 80 red balloons 20 green balloons each package of balloons what is the unit rate in red balloons per green balloons?
    12·1 answer
  • The leg of a right triangle is 5 units and the hypotenuse is 8 units. What is the length, in units, of the other leg of the tria
    8·1 answer
  • The difference between 4,632 and 20,000 is what number?
    8·2 answers
  • What is the greatest common factor (GCF) of 24 and 42?
    5·1 answer
  • Which statement is true about the function f(x) = negative StartRoot x EndRoot?
    9·1 answer
  • How do I find what AC is?
    15·1 answer
  • Question 9 of 10 What is the approximate value of x in the diagram below? (Hint: You will need to use one of the trigonometric r
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!