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hodyreva [135]
4 years ago
15

which word equation is used to calculate the acceleration of an object. A)add the initial velocity and final velocity and multip

ly the result by the time B)subtract the initial velocity from the final velocity and divide the result by the time C) add the initial velocity and the final velocity and divide the result by the time D)subtract the initial velocity from the final velocity and multiply the result by the times
Mathematics
1 answer:
AnnZ [28]4 years ago
7 0
The answer is B. Iv-Fv/T
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Use the regression calculator to compare the teams’ number of runs with their number of wins. a 2-column table with 9 rows. colu
-Dominant- [34]

The equation of the trend line is ŷ = 0.15x - 23.21

<h3>How to determine the average rate of change of the trend line?</h3>

The points are given as:

hr =>808, 768, 655, 684, 637, 619, 613, 609, 563

w =>  93, 94, 66, 81, 86, 75, 61, 69, 55.

Using a graphing calculator, we have the following calculation summary:

  • Sum of X = 5956
  • Sum of Y = 680
  • Mean X = 661.7778
  • Mean Y = 75.5556
  • Sum of squares (SSX) = 50569.5556
  • Sum of products (SP) = 7547.1111

The regression equation is represented as:

ŷ = bX + a

Where:

b = SP/SSX

b = 7547.11/50569.56

b = 0.14924

a = MY - bMX

a = 75.56 - (0.15*661.78)

a  = -23.20961

This gives

ŷ = 0.14924X - 23.20961

Approximate

ŷ = 0.15x - 23.21

Hence, the equation of the trend line is ŷ = 0.15x - 23.21

Read more about trend lines at:

brainly.com/question/2589459

4 0
2 years ago
Solve:-65+ -29=x.x=_______?
ivanzaharov [21]

Answer: -94

Step-by-step explanation:

4 0
3 years ago
For what values of m does the graph of y = 3x^2 + 7x + m have two x-intercepts? a) m&gt;12/49 b) m&lt;12/49 c) m&lt;49/12 d) m&g
den301095 [7]

The quadratic formula, has a part we call the "discriminant" defined by the variables that are inside the square root, and is denotated by "delta":

<span>Δ=<span>b2</span>−4ac</span> Whenever we solve a quadratic equation that is complete and we analyze the discriminant, we can get 3 scenarios: <span>if→Δ>0<span>=></span>∃<span>x1</span>,<span>x2</span>/a<span>x2</span>+bx+c=0</span> This just means: "if the discriminant is greater than zero, there will exist two x-intercepts" And for the second scenario: <span>if→Δ=0→∃<span>xo</span>/a<span>x2</span>+bx+c=0</span> This means: "if the discriminant is equal to zero, there will be one and only one x-intercept" And for the last scenario: <span>if→Δ<0→∃x∉R/a<span>x2</span>+bx+c=0</span> This means that :"if the discriminant is less than zero, there will be no x-intercepts" So, if we take your excercise and analyze the the discriminant: <span>3<span>x2</span>+7x+m=y</span> we will find the values that satisfy y=0 : <span>3<span>x2</span>+7x+m=0</span> And we'll analyze the discriminant: <span>Δ=<span>72</span>−4(3)(m)</span> And we are only interested in the values that make the discriminant equal zero: <span><span>72</span>−4(3)(m)=0</span> All you have to do is solve for "m".

6 0
3 years ago
A large oak tree is 17 meters tall. At a certain time of day, it casts a long shadow on the
Marrrta [24]

Answer:

21 meters

Step-by-step explanation:

Using the concept of similar triangles :

Taking the ratio of similar sides :

h/17 = 63 /51

Cross multiply :

h * 51 = 17 * 63

51 * h = 1071

Divide both sides by 51

(51 * h) / 51 = 1071 / 51

h = 21

Hence height of statue = 21 meters

5 0
3 years ago
A car travels 100 meters in 5 seconds , what is the speed of the car ? speed=distance/time ; 1 mile = 1609 meters
natka813 [3]
\frac{100 meters}{5seconds}*\frac{mile}{1609meters}*\frac{3600seconds}{hour}=\frac{20}{1}*\frac{mile}{1609}*\frac{3600}{hour}=
44.75mph
6 0
3 years ago
Read 2 more answers
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