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tensa zangetsu [6.8K]
2 years ago
14

If using the method of completing the square to solve the quadratic equation x2 −4x+13=0, which number would have to be added to

"complete the square"?
Mathematics
1 answer:
stiv31 [10]2 years ago
7 0
X²-4x+(4/2)²-(4/2)²+13=0
x²-4x+4-4+13=0


-4 should be added



Mark brainliest please
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Simply the following 2m⁵×5m³×7m²​
Ganezh [65]

Answer:

2m^5\cdot 5m^3\cdot 7m^2=70\cdot m^{10}

Step-by-step explanation:

Simplify the expression

2m^5\cdot 5m^3\cdot 7m^2

Calculate the product of the coefficients:

2*5*7=70

Compute the product of the variables. Since they are all the same letter, sum their exponents:

m^5\cdot m^3\cdot m^2=m^{5+3+2}=m^{10}

Combine the results:

\boxed{2m^5\cdot 5m^3\cdot 7m^2=70\cdot m^{10}}

3 0
3 years ago
Surface area helpp needed
Firlakuza [10]

Answer:

144 un²

Step-by-step explanation:

Front Parallelogram = 5 x 11 = 55

Two triangles = 3 x 4 = 12

Back Parallelogram = 3 x 11 = 33

Bottom rectangle = 4 x 11 = 44

Total =

55 + 12 + 33 + 44 = 144

units = un²

144 un²

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If you like my answer and explanation, mark me as brainliest!

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5 0
2 years ago
Question 6 (1 point) Mrs. Sullivan wants to make a square tablecloth for her dining room table. She has 121 ft? of fabric. What
Mekhanik [1.2K]

Answer:

c 60.5 ft x 2ft

Step-by-step explanation:

60.5 ft x 2 = 121 ft

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3 years ago
Plz help! Correct gets brainliest :) I think I know the answer I just want to double check
Gnom [1K]

9x - 24 + 4x = -24 + 14x - x

13x - 24 = 13x - 24

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Answer is All real numbers

4 0
3 years ago
Read 2 more answers
What happens to the mean of the data set shown below if the number 20 is added to the data set?
defon

Answer:

This shows that the mean increases by 2.95

Step-by-step explanation:

Assume the given data is 2, 5, 6, 8

Mean = 2 +5+6+8/4

Mean = 21/4

Mean = 5.25

If number 20 is added, the data becomes 2, 5, 6, 8, 20

New mean = 2 +5+6+8+20/4

New mean = 41/5

New mean = 8.2

Taking the difference in the mean:

Difference = 8.2 - 5.25

Difference = 2.95

This shows that the mean increases by 2.95

<em>NB: The data used was assumed since we are not given any data in question</em>

<em></em>

4 0
2 years ago
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