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3 years ago

Vector u = <11, 12>, v = <-16, 6>, and w = <4, -5>.

Mathematics

1 answer:

Lubov Fominskaja [6]3 years ago

6 0

Answer:

see attachment

Step-by-step explanation:

I find the arithmetic tedious, so I like to let a calculator or spreadsheet do it. The components of the sum are the sums of the components.

___

For example, ...

u - 5w = <11, 12> - 5×<4, -5>

= <11 -5·4, 12 -5·(-5)>

= <-9, 37>

= -9i +37j

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3 years ago

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3 years ago

10) Simplify the expression. 6(4x + 12) – 9x - 18 - 4(-6)

aleksklad [387]

Answer:

$\boxed{\bold{15x+78}}$

Step By Step Explanation:

Apply Rule - (-a) = a

$\bold{6\left(4x+12\right)-9x-18+4\cdot \:6}$

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3 years ago

Which equation is equivalent to √x^2+81 = x+10

jeka57 [31]

Keywords:

equation, operations, equivalent, binomial, square root

For this case we have an equation in which we must apply operations to rewrite it in an equivalent way. We must start by raising both sides of the equation to the square. Thus, we eliminate the square root of the left side of equality and finally solve the binomial of the right side of equality.

So we have:

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