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3 years ago

PLEASE HELP ‼️50 POINTS‼️

Mathematics

1 answer:

nirvana33 [79]3 years ago

6 0

Answer: it is 4i78f4950

Step-by-step explanation:

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PLEASE ANSWER QUICKLY ASAP <br>ANSWER QUESTION A AND B

Evgen [1.6K]

Answer:

a) $a+b+c=\begin{pmatrix}-2\\-3\end{pmatrix}$

b) (i) $a+2c=\begin{pmatrix}-4\\2\end{pmatrix}$

(ii) $k=2$

Step-by-step explanation:

It is given that,

$a=\begin{pmatrix}4\\-10\end{pmatrix},b=\begin{pmatrix}-2\\1\end{pmatrix},c=\begin{pmatrix}-4\\6\end{pmatrix}$

We need to find the value of a+b+c.

$a+b+c=\begin{pmatrix}4\\-10\end{pmatrix}+\begin{pmatrix}-2\\1\end{pmatrix}+\begin{pmatrix}-4\\6\end{pmatrix}$

$a+b+c=\begin{pmatrix}4+(-2)+(-4)\\-10+1+6\end{pmatrix}$

$a+b+c=\begin{pmatrix}-2\\-3\end{pmatrix}$

(i) We need to find the value of a+2c.

$a+2c=\begin{pmatrix}4\\-10\end{pmatrix}+2\begin{pmatrix}-4\\6\end{pmatrix}$

$a+2c=\begin{pmatrix}4\\-10\end{pmatrix}+\begin{pmatrix}-8\\12\end{pmatrix}$

$a+2c=\begin{pmatrix}4+(-8)\\-10+12\end{pmatrix}$

$a+2c=\begin{pmatrix}-4\\2\end{pmatrix}$

(ii) It is given that a+2c=kb, where k is an integer. We need to find the value of k.

$a+2c=k\begin{pmatrix}-2\\1\end{pmatrix}$

$\begin{pmatrix}-4\\2\end{pmatrix}=\begin{pmatrix}-2k\\k\end{pmatrix}$

On comparing both sides, we get

$k=2$

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3 years ago

Find the area of the figure below.<br> 6 in.<br> 5 in.<br> 4 in.

Pepsi [2]

Answer:

Step-by-step explanation:

Plz give brainlest

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3 years ago

What is the value of the number line

allochka39001 [22]

Answer:

the value is whatever the greatest number u have

Step-by-step explanation:

if ur greatest number is there

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2 years ago

Cecily’s teacher held a raffle. To win the raffle, a student has to pick a paper scroll with an integer written on it. The chart

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Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

jeka94

Answer:

g(x)

because it is a quadratic equation it is mirrored the other one isn’t even a function

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2 years ago