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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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I still don't get the mentally 82+42 of assciative property
Deffense [45]
82 + 42

82  +
42
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124
8 0
4 years ago
Use the least common denominator to write an equivalent fraction for each fraction. 2 6 , 7 8 The least common denominator is 24
seraphim [82]

Answer:

2/6 = 48/144

7/8 = 168/192

Step-by-step explanation:

Use the least common denominator to write an equivalent fraction for each fraction. 2/6 , 7/8 The least common denominator is 24 .

2/6 can be rewritten as __

We Multiply both numerator and Denominator by 24

48/144

7/8 can be rewritten as __

We Multiply both numerator and Denominator by 24

168/192

8 0
3 years ago
You had $21 to spend on three pens .After buying them you had $12 how much did each pen cost
Black_prince [1.1K]
I thinks it’s 3 because 21-12=9 so you spent 9 dollars 9/3=3
7 0
3 years ago
How do I solve out 5x188
mihalych1998 [28]

Answer:

940

Step-by-step explanation:

 188

<u>×    5</u>

 940

--------------------------------------------------------

8 * 5 = 40

Carry the 4 to the next 8

8 * 5 = 40

Add the 4 to the 40

40 + 4 = 48

Carry the 4 to the 1

1 * 5 = 5

Add the 4

5 + 9

= 940

*Hope this helps .^.*

5 0
3 years ago
A camera has a listed price of $522.98 before tax. If the sales tax rate is 8.25%, find the total cost of the camera with sales
svetoff [14.1K]

Answer:

4,314.6

Step-by-step explanation:

522.98 multiplied by 8.25 is 4,314.585 which rounded to the nearest cent is 4,314.6

7 0
3 years ago
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