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Amanda [17]
3 years ago
9

Here are two steps from the derivation of the quadratic formula​

Mathematics
1 answer:
frosja888 [35]3 years ago
5 0

Answer: Completing the square, means

adding ( half the coefficient of the x- term )² to both sides, that is

(  )² is added to both sides

Step-by-step explanation:

ur pretty btw

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PLEASE HELP! IM A MONTH BEHIND IN MATH AND FREAKING OUT T^T PLZZZZ
ANTONII [103]
A) Let x stand for time, y stand for velocity.
We are given the points (2,50), (6, 54). We can make a line using the slope intercept form
y = mx + b.
slope is (54 - 50)/(6-2)  = 4/4 = 1
y = 1x + b
plug in point (2,50) to find b
50 = 1(2) + b
50-2 = b
48 = b
the equation is  y = 1x + 48
Make standard form.
<span>x - y = -48
</span><span>b) make a table and plot points for the first 7 hours
Table Is attached.
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3 0
2 years ago
If each side of a square grows 6 mm, the area of ​​the square is multiplied by 16. How long are the sides of the original square
Phoenix [80]

Answer:

2 mm

Step-by-step explanation:

Let x be the sides of the original square,

then the area of the original square is x^2

The sides of the new square is x + 6

The area is (x + 6)^2

Then (x + 6)^2 = 16*x^2

Take square root on both sides and get

x + 6 = 4x,

3x = 6

so x = 2 mm

3 0
2 years ago
A bag of marbles contains 28 red marbles, 30 green marbles, and 24 yellow marbles. What is the ratio of red marbles to yellow ma
Basile [38]

Answer:

The answer to your question is 7:6

Step-by-step explanation:

Data

Number of red marbles = 28

Number of green marbles = 30

Number of yellow marbles = 24

Radio = ?

Process

1.- Write the ratio

                   Red marbles : Yellow marbles

2.- Substitution

                                  28 : 24

3.- Simplification

-Divide both terms by 2

                                  14 : 12

-Divide by two both terms

                                    7 : 6

-It is not possible to simplify more.

4 0
2 years ago
Read 2 more answers
Please answer correctly !!!!! Will mark brainliest !!!!!!!!
Vesna [10]

Answer:

k(-7) = = -89

Step-by-step explanation:

k(t) = 10t -19

Let t = -7

k(-7) = 10*-7 -19

      = -70-19

      = -89

7 0
3 years ago
Read 2 more answers
A first number plus twice a second number is 9. twice the first number plus the second totals 33. find the numbers.
Alla [95]
First number: x = 19
Second number: Y = -5

x + 2y = 9
2x + y = 33
3 0
2 years ago
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