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motikmotik
3 years ago
15

If using the method of completing the square to solve the quadratic equation

Mathematics
1 answer:
SashulF [63]3 years ago
8 0

Answer:

(5/2) ² or 25 /4

Step-by-step explanation:

x² - 5x - 18 = 0

x² -5x = 18

x² -5x + (5/2)²= 18 + (5/2)²

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Dose anyone know the answer to this question
marishachu [46]

Answer:

Option D!

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is the value of x? Please answer details are below
nydimaria [60]

Answer:

54

Step-by-step explanation:

Angles in a triangle add to 180° and we can see a right angle so

x = 180 - ( 90 + 36 )

x = 180 - 126

x = 54

4 0
3 years ago
What is the ratio
storchak [24]
9;9
Explanation:
You divide 18 by 2 to get 9 and divide 27 by 3 to get 9.

Hope that helps!

3 0
3 years ago
Help plead i dont get this
professor190 [17]
Find the percent of the circle

r=radius of circle
then r=1/2 of the diagonal of the square
use some pythagoran theorme

45,45,90 triangle
(r√2)/2=1/2 of a side
r√2 is one side
square it
2r²=square

area of circle is pir²
percent it is is

square/circle=
(2r²)/(pir²)=
2/pi= about
0.636
about 64% that it is in the square

8 0
3 years ago
18 Given: the sequence 4, 7, 10, 13,...
Sergio039 [100]

a₁ = 4

n = 10

d = 3

a = a₁ + (n - 1)d

a₁₀ = 4 + (10 - 1)3

a₁₀ = 4 + (9)3

a₁₀ = 4 + 27

a₁₀ = 31

The 10th term would be 31 and the d variable will be replaced with the number 3.

8 0
2 years ago
Read 2 more answers
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