10) using opposite operations solve for x 30 = - 6 x + 12

Mathematics

1 answer:

Len [333]3 years ago

7 0

X=-3 that’s the answer your welcome

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What is the value of the discriminante for the quadratic equation 0=2x^+x-3

denpristay [2]

Answer:

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Step-by-step explanation:

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3 years ago

Two sides of a triangle are exactly the Same length. The length of the third side is four cm shorter than the two equal sides. F

liubo4ka [24]

Answer:

15 cm, 15 cm, 11 cm

Step-by-step explanation:

let the equal sides be x then the third side is x - 4

The perimeter is the sum of the 3 sides and is 41 cm , then

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3 0

2 years ago

I am very stuck with this

Bingel [31]

Answer:

see explanation

Step-by-step explanation:

To multiply the vector by a scalar, multiply each of the elements by the scalar.

To add 3 vectors add the corresponding elements of each vector

2a + 3b + 4c

= 2 $\left[\begin{array}{ccc}2\\3\\\end{array}\right]$ + 3 $\left[\begin{array}{ccc}-4\\1\\\end{array}\right]$ + 4 $\left[\begin{array}{ccc}3\\2\\\end{array}\right]$

= $\left[\begin{array}{ccc}4\\6\\\end{array}\right]$ + $\left[\begin{array}{ccc}-12\\3\\\end{array}\right]$ + $\left[\begin{array}{ccc}12\\8\\\end{array}\right]$