3 years ago

How do you check your solutions

Mathematics

1 answer:

Fantom [35]3 years ago

8 0

Reverse your steps to see if u get what the questions originally asked.

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Factorisation with this question, please help

charle [14.2K]

3( x - y )^2 - 2( x - y ) =

( x - y ) ( 3( x - y) - 2 ) =

( x - y )( 3x - 3y - 2 )

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3 years ago

A volleyball reaches its maximum of 13 feet, 3 seconds after it is served. What quadratic formula could model the height of the

Katena32 [7]

Answer:

$H=-(t-3)^2+13$

Step-by-step explanation:

The path covered by the volleyball will be a downward parabola with the vertex being the highest point of the ball.

A general form of a downward parabola is given as:

$y=-a(x-h)^2+k$

Where $(h,k)$ is the vertex of the parabola and 'a' is a constant.

Now, let 'h' be the vertical height and 't' be the time taken.

So, the equation would be of the form:

$H=-a(t-h)^2+k$

Now, as per question:

h = 2 seconds, k = 13 feet.

$H=-a(t-3)^2+13$

Now, taking a = 1. So, the formula that can be used is:

$H=-(t-3)^2+13$

7 0

3 years ago

What is the sum of the following numbers. -7,5,-3,6,-4,7,-5,3-1,4

Sav [38]

Answer:

Step-by-step explanation:

Tổng : -7,5+(-3,6)+(-4,7)+(-5,3)+(-1,4)=-22,5

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3 years ago

HELP PLEASE ASAP 55 POINTS I BEG YOU!!!!!!

Alja [10]

Answer:1 b+1T+1 U=5617b+1 T =9062b+7T+5U = 1758

Step-by-step explanation:

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3 years ago

Find the sum. Enter your answer in the box below as a fraction, using the slash mark ( / ) for the fraction bar.

Rom4ik [11]

Answer:

5/7

Step-by-step explanation:

2/7 + 3/7

Denominator are equal so adding numerator,

(2+3)/7 = 5/7

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3 years ago