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3 years ago

The first three steps of completing the square to solve the quadratic equation x2+8x+5=0 what are next 3 steps

Mathematics

1 answer:

AleksandrR [38]3 years ago

3 0

(x+a)^2 - (a)^2 + b

a is half of the second coefficient in front of x (half of 8)

(x+4)^2 -(4)^2 +5

(x+4)^2 -16+5

= (x+4)^2 -9

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What is the height of an object thrown when time is 6 seconds? Also explain how u got your answer

nevsk [136]

Answer:

$946.4\ m$

Step-by-step explanation:

Let

h(t) ---> the height of an object in meters

t ----> the time in seconds

we have

$h(t)=-2.6t^2+40t+800$

For t=6 sec

substitute in the quadratic equation the value of t and solve for h

$h(6)=-2.6(6)^2+40(6)+800$

$h(6)=946.4\ m$

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2 years ago

Graph 24x+25=−6y+7 . (if you can please give me the coordinates)

dexar [7]

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3 years ago

3 Question 7 Evaluate if m = -32 and n = 2. + - alo CH OVO

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3 years ago

A minor league baseball team plays 128 games a seanson. If the tam won 16 more than three times as many games as they lost how m

tiny-mole [99]

Answer: The team won 100 games and losses 28 games

Step-by-step explanation:

Let the number of games won denoted by x and the games lost is denoted by y .

Given : A minor league baseball team plays 128 games in a season.

Team won 16 more than three times as many games as they lost.

Then, the system of equations, we have

$x+y=128-------(1)\\\\x=3y+16------------(2)$

We can rewrite equation (2) as $x-3y=16----------------(3)$

Now, Eliminate equation (3) from (1), we get

$y-(-3y)=128-16\\\\\Rightarrow\ 4y=112\\\\\Rightarrow\ y=\dfrac{112}{4}=28$

Substitute the value of y in (2), we get

$x=3(28)+16=84+16=100$

Hence, the team won 100 games and losses 28 games.

7 0

3 years ago

Find the formula for the n^th term of the sequence whose first few terms are -3,0,5,12,21,32,

skad [1K]

Answer:

77 is the ninth term.

Step-by-step explanation:

You start out with adding 3 and every time you add a new number you add the last number you added to it and add 2.

7 0

2 years ago