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3 years ago

Solve 5|x| = 45 a.no solution b.-9 or 9 c. 9 d.40

Mathematics

1 answer:

Ipatiy [6.2K]3 years ago

8 0

5 |x| = 45....divide both sides by 5
|x| = 45/5
|x| = 9
x = -9 or 9

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Should be pretty easy to answer, I just need a refresher. I forgot how to solve for triangles...

never [62]

Answer:

x = 25.734083

$x \approx 25.734$

Step-by-step explanation:

<u>Trigonometric Ratios</u>

The ratios of the sides of a right triangle are called trigonometric ratios. There are six trigonometric ratios, sine, cosine, tangent, cosecant, secant, and cotangent.

The longest side of the triangle is called the hypotenuse and the other two sides are the legs.

Selecting any of the acute angles as a reference, it has an adjacent side and an opposite side. The trigonometric ratios are defined upon those sides.

Note we are given an angle of 25°. The opposite side is 12 and the adjacent side is x. We need to relate those sides with a trig function (the tangent ratio)

Tangent Ratio:

$\displaystyle \tan\theta=\frac{\text{opposite leg}}{\text{adjacent leg}}$

Substituting:

$\displaystyle \tan 25^\circ=\frac{12}{x}$

Solving for x:

$\displaystyle x=\frac{12}{\tan 25^\circ}$

Calculating:

$\displaystyle x=\frac{12}{0.466307}$

x = 25.734083

Round to 3 decimals:

$\mathbf{x \approx 25.734}$

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3 years ago

Hey guys! Please help me out here lol.. <br><br> Question: Simplify: sqrt(n^2) is n<0

Serga [27]

Answer:

Step-by-step explanation:

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3 years ago

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Help on geometryyyyy

SVEN [57.7K]

Answer:

(-3,-4)

Step-by-step explanation:

R x axis means to reflect over the x axis and if you reflect point be over the x axis then the new points would be (-3,-4)

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3 years ago

I need to find the area of the shaded region, but I need detailed steps

olasank [31]

The shaded region is a parallelogram.

The formula for the area of any parallelogram is $A=bh$ .

The base of the parallelogram is 2 meters long (given).

The height of the parallelogram is 9 meters (do not be fooled by the unnecessary information of 14 meters)
The height is 9 meters because the height has to be perpendicular to the base. Thus, the side length must be 9 meters.

Multiply them together.

$2 \times 9 = 18$

The area of the parallelogram is 18 square meters.

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4 years ago

Someone help please!!

pashok25 [27]

Answer
3
Explanation
The line goes through -2 on the x line and 5 on the y line so -2x+5=3
Tell me if I’m wrong

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3 years ago

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