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2 years ago

Solve for x. 6 x - 2 / 4 = x - 2 x =

Mathematics

1 answer:

gtnhenbr [62]2 years ago

8 0

Answer: x = 1/4

Explanation: I did the math myself, but answer might be wrong...

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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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Angelina_Jolie [31]

Answer:

7. x = 10 or -8

8. x $\sqrt{5}$ - 25 $\sqrt{x}$

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3 years ago

Use trigonometry to work out the height, v,

IrinaVladis [17]

Answer: 8.2 mm

Step-by-step explanation:

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2 years ago

Question 3

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3. 16 months
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4. 46 months
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1 year ago

Rebecca was curious whether \triangle STV△STVtriangle, S, T, V and \triangle WUV△WUVtriangle, W, U, V are similar. She wrote a p

Alexxandr [17]

Answer:

The length of side VT is not 5

Step-by-step explanation:

I did the question and got the answer right

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3 years ago

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