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AVprozaik [17]
1 year ago
8

What is the answer for (x – 3)2 = 5

Mathematics
1 answer:
vodka [1.7K]1 year ago
7 0

Answer:

x = 11/2 = 5.5

Step-by-step explanation:

2x-6 = 5

2x = 11

x = 11/2 = 5.5

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Quadratic equation. Find the value of m so that the roots of the equation (4 - m) x^2 + (2m + 4)x + (8m + 1) = 0 may be equal.
nikitadnepr [17]

The quadratic has one root with multiplicity 2 if the discriminant is 0, which is

(2m+4)^2-4(4-m)(8m+1)

(That is, for a quadratic ax^2+bx+c, the discriminant is b^2-4ac.)

Set the discriminant equal to 0 and solve for m:

(2m+4)^2-4(4-m)(8m+1)=0

4m^2+16m+16+32m^2-124m-16=0

36m^2-108=0

36m(m-3)=0

\implies m=0\text{ or }m=3

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trapecia [35]

Answer:

Step-by-step explanation:

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To find projection of u on V and also projection of V on U

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U.V = -8(1)+0(3)+1(-3)\\= -11

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Similarly projection of V on U

=\frac{U.V}{|U|} \\=\frac{-11}{\sqrt{64+0+1} } \\=\frac{-11}{\sqrt{65} }

4 0
3 years ago
The numbers Of students in the four sixth-grade classes at Northside School are 26,19,,34,and 21.Use the properties to find the
Dafna11 [192]
Basically there are 3 addition properties and they are associative property, identity property, and commutative property.

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Identity Property is just adding a 0 to the number that doesnt change anything. Example: 26+19+34+21 +0 = 100

Associative property is just changing the grouping of the addends. Example: (26+19) + (34+21)

I know these properties may be complicated i know inhate them too haha but i hope i helped :) if you want you can search up the distributive property too but its with multiplication and addition combined and its harder but i think these are the 3 main properties.
7 0
2 years ago
In ΔABC, the measure of ∠C=90°, the measure of ∠B=64°, and BC= 6.6 Find the length of CA the nearest tenth of a foot
Marrrta [24]

Answer:

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