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4 years ago

What does W equal? -22-3w-5w=0

Mathematics

1 answer:

DerKrebs [107]4 years ago

3 0

In the International System of Units (SI), the unit of power is the watt (W), which is equal to one joule per second.

SI unit: watt (W)

In SI base units: kg⋅m2⋅s−3

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Solve the Equation: 1/3x=-5

storchak [24]

Answer:

x = -15

Step-by-step explanation:

$\dfrac{1}{3}x = -5$

Multiply both sides by 3.

$3 \times \dfrac{1}{3}x = 3 \times (-5)$

$x = -15$

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3 years ago

Review the proof step statement 1 cos(2x) = 1-sin^2(x)

ehidna [41]

Answer:

Option (3)

Step-by-step explanation:

Correct steps for the proof are,

Step Statement

1 cos(2x) = 1 - 2sin²(x)

2 Let 2x = θ

3 x = $\frac{\theta}{2}$

4 $\text{cos}\theta = 1 - 2\text{sin}^2(\frac{\theta}{2} )$

5 $\text{cos}\theta-1 =-2\text{sin}^2(\frac{\theta}{2} )$

6 $1-\text{cos}\theta =2\text{sin}^2(\frac{\theta}{2} )$

7 $\frac{1-\text{cos}\theta}{2} =\text{sin}^2(\frac{\theta}{2} )$

8 $\pm \sqrt{\frac{1-\text{cos}\theta}{2} }=\text{sin}(\frac{\theta}{2} )$

There is a mistake in step 6.

Therefore, Option (3) will be the answer.

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3 years ago

I need help please!!

kirill115 [55]

Step-by-step explanation:

$x = \sqrt{ {35}^{2} + {12}^{2} } \\ = \sqrt{1225 + 144} \\ = \sqrt{1369} \\ = 37 \\$

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4 years ago

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TTM! 10 POINTS!

kodGreya [7K]

Answer:

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3 years ago

Brainest for best answer only 5 mins left show your work

liraira [26]

Answer:

b. 61.75

Step-by-step explanation:

Split it into a rectangle and a triangle

1. Rectangle

You can see that the side lengths are 7 and 6.5, so the area is 7 * 6.5 = 45.5

2. Triangle

You know that the base is 6.5 and that the height is 5 (because 12 - 7 = 5) so you can find the area by doing 6.5 * 5 / 2 = 16.25

3. Total

Add the two areas, so 45.5 + 16.25 = 61.75

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3 years ago

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