3 years ago

Can someone please help Im failing , I also need the work . It’s trig

Mathematics

1 answer:

Brut [27]3 years ago

3 0

Answer:

what's the question pls?.......

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Consider points A(1,0, −5) and B(2, −3,6).

Bumek [7]

Answer: a) $\hat{i}-3\hat{j}+11\hat{k}$ b)√131.

Step-by-step explanation:

Since we have given that

A(1,0,-5), is rewritten in vector form is given by

$1\hat{i}-5\hat{k}$

B(5,-3,6) is rewritten in vector form is given by

$2\hat{i}-3\hat{j}+6\hat{k}$

a. What is the component form of AB?

So, it becomes,

$\vec{AB}=(2-1)\hat{i}+(-3-0)\hat{j}+(6+5)\hat{k}\\\\\vec{AB}=\hat{i}-3\hat{j}+11\hat{k}$

b. What is the magnitude of AB?

$\mid AB\mid=\sqrt{1^2+(-3)^2+11^2}\\\\\mid AB\mid=\sqrt{1+9+121}\\\\\mid AB\mid=\sqrt{131}$

Hence, a) $\hat{i}-3\hat{j}+11\hat{k}$ b)√131.

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3 years ago

Match each step to it's justification to solve 2x+5=19

Leviafan [203]

Answer:

can i have brainliest? :) hope this helpeddd

Step-by-step explanation:

i don't know what im supposed to match it too but im just gonna solve the equation

2x + 5 = 19

isolate the variable

2x + 5 = 19

-5 -5

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2 2

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Step-by-step explanation:

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MrRissso [65]

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B: it has no solution

Step-by-step explanation:

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