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Ksivusya [100]
4 years ago
7

Devon decided to rewrite the quadratic equation so that it could be simplified into a square in order to find the zeros.

Mathematics
2 answers:
Scilla [17]4 years ago
6 0

Answer:

Option B

Step-by-step explanation:

Given: x² + 10x + 13

To make a complete square, we will use (b/2)² to add terms to complete the square where b is the coefficient of x

b = 10 , (b/2)² = 5² = 25

So, add 25 and subtract 25

x² + 10x + 13

= x² + 10x + 13 + 25 - 25

= (x² + 10x + 25) + 13 -25

= (x+5)² - 12

By comparing the options with the previous steps

So, the answer is <u>option B</u>

erik [133]4 years ago
4 0

Answer:

b

Step-by-step explanation:

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Help me por favor?!?!?!​
fredd [130]

Answer:

both lines have the same slope, hence they are parallel to each other

Step-by-step explanation:

The equation of a straight line is given by:

y = mx + b;

where y, x are variables, m is the slope of the line and b is the y intercept.

Two lines are said to be parallel to each other if they have the same slope, whereas two lines are perpendicular to each other if the product of their slopes is -1.

Given a line with an equation:

y = (2/3)x - 17

From the equation of the line with can see that the slope of the line is 2/3 and the y intercept is -17.

Also the other line has an equation of 4x - 6y = -6

6y = 4x + 6

y = (2/3)x + 1

Hence this line has a slope of 2/3 and a slope of 1.

Since both lines have the same slope, hence they are parallel to each other

7 0
3 years ago
4x + 8 = 32 i need help btw i am in middle school
Mekhanik [1.2K]

Answer:

x=6

Step-by-step explanation:

to solve this equation, we need to isolate the variable (x).

to do this we must subtract both sides by 8.

doing this we get:

4x=24

now we need to divide both sides by 4:

x=6

that's the answer!

3 0
3 years ago
8% of what number is 2
lana [24]
( 8 / 100 ) × Y = 2 ;
Y = ( 2 × 100 ) / 8 ;
Y = 200 /8 ;
Y = 25 ( is the number )
4 0
3 years ago
A pack of pencils contains 20 pencils. If Trish uses 3/4 of the pack, how many pencils will she use?
neonofarm [45]
A) because 15 i would assume because 5 x 4 equals 20 so i did 5*3=15 
4 0
3 years ago
Generalize in general, an equation of the form x^2=p, where p is a positive rational number, has two solutions, x=_+pie,p.
Svetlanka [38]

Answer: +/- \sqrt{A  = s

Step-by-step explanation:

A= S^2

then square root both sides

\sqrt A^2 =  \sqrt{s ^2

+/- \sqrt{A  = s

7 0
3 years ago
Read 2 more answers
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