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serious [3.7K]
3 years ago
11

What are the roots of the quadratic equation below 2x ^ 2 - 12x + 13=0 PLEASE HELP

Mathematics
1 answer:
kozerog [31]3 years ago
3 0

Answer:

 

Step-by-step explanation:

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Work out
trasher [3.6K]

Answer:

The correct answer is 1.

Step-by-step explanation:

In order to solve the problem \frac{3}{9}  + \frac{2}{3}, we need can use two methods.

Method 1: Make the denominators the same.

3/9 + 2/3 =

3/9 + 6/9 =

9/9 =

1

Method 2: Turn both fraction into decimals (<em>by dividing the numerator by the denominator</em>.)

3/9 or 3 ÷ 9 = 0.3 (when rounded to the nearest tenth)

2/3 or 2 ÷ 3 = 0.7 (when rounded to the nearest tenth)

0.3 + 0.7 = 1

Therefore, the answer to this question is 1.

5 0
2 years ago
Read 2 more answers
From the top of a 52 m tall lighthouse, a sailboat is sighted at an angle of depression of 47°
Vesnalui [34]
No one asked everone is 8282 mans no one asked
4 0
3 years ago
Evaluate the expression. 4–4÷2
n200080 [17]

Answer:

2.

Step-by-step explanation:

7 0
4 years ago
What are the last 2 digits of 7 to the power of 2018. This question was on a past exam paper.
Xelga [282]

Answer:

49

Step-by-step explanation:

  • Try finding pattern of last two digits of 7 to the power of some numbers.

7^1=07

7^2=49

7^3=343

7^4= 2301

7^5= 16807

  • so , the pattern is, 07,49,43,01
  • so, if we start writing all numbers from 1 to 2018 , four number in each line, 2018 will fall in the second column.
  • so it will have 49 as the  last 2 digits [by seeing this pattern : 07,49,43,01 ]
6 0
3 years ago
In the square below, the two semi-circles are congruent. Find the area of the shaded region. If necessary, round your answer to
Jobisdone [24]
Let's start with the area of the square
area \: square = s \times s = 8 \times 8 = 64
now let's subtract the are of the two half circles.
two half circles are the same as one circle, and we know that the diameter of the circle is 8 (same as the side of a square) so it's radius is 8/2= 4 inches

area \: circle = \pi {r}^{2}  = \pi \times  {4}^{2}  = 16\pi
now we just subtract and our answer is

64 - 16\pi = 64 - 16 \times (3.14) = 13.73
3 0
4 years ago
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