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3 years ago

Help me pls the question is in the picture

Mathematics

2 answers:

diamong [38]3 years ago

7 0

The should be answer is 20

vladimir2022 [97]3 years ago

5 0

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Answer: 20

Explanation: 11 x 5 = 55 + 25 + 20 = 100 meaning 20 nickels

I hope this helped!

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4 years ago

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3 years ago

Read 2 more answers

Consider the planes 4x+3y+4z=1 and 4x+4z=0. (A) Find the unique point P on the y−axis which is on both planes. ( 0 equation edit

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Step-by-step explanation:

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B) To obtain the parallel vector to both planes we use the cross product of the normal vector of the planes.

$\left[\begin{array}{ccc}i&j&k\\4&3&4\\4&0&4\end{array}\right] = 12i-0j+12k$

As we want a unit vector, we must calculate the modulus of u:

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Thus, the wanted vector is $\frac{u}{12\sqrt{2}}$ . Therefore,

$u = \frac{1}{\sqrt{2}}i-\frac{1}{\sqrt{2}}k = \frac{\sqrt{2}}{2}i-\frac{\sqrt{2}}{2}k$ .

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$r = \frac{1}{3}j +\lambda \left( \frac{\sqrt{2}}{2}i- \frac{\sqrt{2}}{2}k \right)$

where $\lambda$ is a real number.

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