Which of the following systems has infinitely many solutions?

Mathematics

1 answer:

stich3 [128]3 years ago

4 0

Answer:

Step-by-step explanation:

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Use the area model to explain why 3/4 and 9/1 are equivalent

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Answer:

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Step-by-step explanation:

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3 years ago

Integrate sin²2x cos²2xdx

Masteriza [31]

$\sin^2x=\dfrac{1-\cos2x}2$
$\cos^2x=\dfrac{1+\cos2x}2$

From the identities above, you have

$\sin^22x\cos^22x=\dfrac{(1-\cos4x)(1+\cos4x)}4=\dfrac{1-\cos^24x}4$

Applying once more, you have

$\dfrac{1-\cos^24x}4=\dfrac{1-\dfrac{1+\cos8x}2}4=\dfrac{1-\cos8x}8$

So,

$\displaystyle\int\sin^22x\cos^22x\,\mathrm dx=\frac18\int(1-\cos8x)\,\mathrm dx=\frac x8-\frac1{64}\sin8x+C$

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3 years ago

10 examples of points geometry

erica [24]

A point in geometry is a location. It has no size, no width, no length and no depth.

A tip of a sword.
A period at the end of a sentence.
A bead.
Thumbtacks.
A pinhole on a graph.
Cell.
Floor meet at the corner of the room.
A point where 2 wall meet.
A hole in the ceiling.
A hole made be a safety pin in a thin fabric.

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3 years ago

Urgent please!!! I really don’t understand it, tysm to anyone who can answer thissss :))))

Tomtit [17]

Given:

The frequency distribution table.

To find:

The mean average score on a test.

Solution:

The frequency distribution table is

$Marks (x_i)$ $Frequency(f_i)$ $f_ix_i$