3 years ago

Math question! I don't understand! can I have an explanation?

Mathematics

1 answer:

kotykmax [81]3 years ago

6 0

Answer:

linear monomial

Step-by-step explanation:

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Three points are collinear.

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If they are in the same line yes. If they aren't then its considered non-collinear.

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Find the domain of the following piece wise function

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3 years ago

What is -4.5= a - 8

murzikaleks [220]

Answer:

Step-by-step explanation: -4.5=a-8

1. add 8 to both sides -4.5+8= 3.5

2. since you added 8 to negative 8 you get zero so it just goes away

3. ANSWER= 3.5=a

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3 years ago

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Determine the projection of w onto u.

irina [24]

Answer:

A.6.2i-4.2 j

Step-by-step explanation:

We are given that

$u=9i-6j$

$v=-3i-2j$

$w=19i+15j$

We have to find the projection of w on to u.

The project of vector a on b

= $\frac{a\cdot b}{\mid b\mid^2}b$

$w.u=(19i+15j)\cdot (9i-6j)=171-90=81$

$\mid u\mid=\sqrt{x^2+y^2}=\sqrt{9^2+(-6)^2}=\sqrt{117}$

Using the formula

The projection of w on to u

$=\frac{u\cdot w}{\mid u\mid^2}(u)=\frac{81}{117}(9i-6j)$

The projection of w on to u=6.2i-4.2j

Hence, option A is true.

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3 years ago

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Yeah i need help please

Lelu [443]

It should be 8 if I’m not mistaken

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3 years ago

Math question! I don't understand! can I have an explanation?​

Math question! I don't understand! can I have an explanation?