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dsp73
2 years ago
7

Shawna is a member of the swim team. She can swim 3 laps in 3 minutes

Mathematics
1 answer:
likoan [24]2 years ago
6 0

Answer:

8 mins 56 secs

Step-by-step explanation:

3 minutes and 21 seconds divided by 3 laps is 1.07 so it takes her 1 minute and 0.7 sec for each lap then u just multuply 1.07 by 8 and u get 8.56 meaning 8 mins and 56 secs. hope i helped :)

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Evaluate 3(m^2-2) when m=1.5
Nitella [24]

Answer:

  0.75

Step-by-step explanation:

Put the number where the variable is and do the arithmetic.

  3(1.5² -2) = 3(2.25 -2) = 3(0.25) = 0.75

7 0
3 years ago
Pls pls pls help meeeeee
3241004551 [841]

Answer:

i think you just extend the coordinates to the side, except the right point, by 3, and then the bottom ones go down by 3, and the top one goes up by 3

Step-by-step explanation:

7 0
3 years ago
The following scatter plot represents the height of a basketball in seconds during a free throw shot.
zavuch27 [327]

The function is not treated as linear because whenever we throw the thing in the air it traces the path of the parabola which is quadratic. Then the quadratic equation is y = -1.25x² + 7.35x + 3.2.

<h3>What is a quadratic equation?</h3>

It is a polynomial that is equal to zero. Polynomial of variable power 2, 1, and 0 terms are there. Any equation having one term in which the power of the variable is a maximum of 2 then it is called a quadratic equation.

The following scatter plot represents the height of a basketball in seconds during a free throw shot.

(a) A student chose to model the data with the function, y = 0.9286x + 9.0571 . Then the function is not treated as linear because whenever we throw the thing in the air it traces the path of the parabola which is quadratic.

(b) Write a function

We know that the quadratic equation is given as ax² + bx + c = y

This will pass through the points (1, 9.3), (2, 12.9), and (3, 14). Then we have

\rm a + b + c = 9.3  \ \ \  \ \ \ \ ...1\\\\4a + 2b + c = 12.9 \ \  \ ...2\\\\9a + 3b + c = 14 \  \ \ \ \ \ ...3

On solving the equations 1, 2, and 3. Then we have

a = -1.25, b = 7.35, and c = 3.2

Then the quadratic equation will be

y = -1.25x² + 7.35x + 3.2

More about the quadratic equation link is given below.

brainly.com/question/2263981

#SPJ1

4 0
2 years ago
Solve for x, Correct to one decimal place where 0°&lt;x&lt;90° <br><br><br>Sin2x=0,291​
Ksivusya [100]

Answer:

Step-by-step explanation:

Sin2x=0,291​

  1. Sin2x = 2Sinx * Cosx
5 0
2 years ago
A bag contains 4 yellow tiles and 2 green tiles . A tile will be taken from the bag at random and set aside. A second tile will
natta225 [31]

There is a 40 percent chance because there are more yellow tiles than green

5 0
2 years ago
Read 2 more answers
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