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2 years ago

Can someone help me?

Mathematics

1 answer:

gavmur [86]2 years ago

6 0

0.27 cents. Just divide 3.78 by 14 to find the unit price.

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Solve for x in sin xtan x + tan x – 2sin x + cos x = 0 for 0 ≤ x ≤2π rads.

konstantin123 [22]

The value of x = 4.71, 0.41, or 5.89 radian value

Specification:

sinxtanx + tanx -2sinx + cosx = 0

tanx = sinx / cosx

sinx (sinx / cosx) + sinx / cosx -2sinx + cosx = Multiply 0

cosx to remove the fraction

sin ^ 2 (x) + sinx -2sinxcosx + cos ^ 2 (x) = 0

sin ^ 2 (x) + cos ^ Replace with 1. 2 (x) = 1

sinx -2sinxcosx + 1 = 0

sinx (1-2cosx) = -1

1-2cosx = -1 / sinx

-2cosx = -1 / sinx -1

2cosx = 1 / sinx + 1

cosx = 1 / 2sinx + 1/2

sqr (1-sin ^ 2 (x)) = 1 / 2sinx + 1/2

Squared on both sides

1-sin ^ 2 (x) = 1 / 4sin ^ 2 (x) + 1 / 2sinx + 1/4

4sin ^ 2 (x) Multiply

4sin ^ 2 (x) -4sin ^ 4 (x) = 1 + 2sinx + sin ^ 2 (X)

4sin ^ 4 (x) -3sin ^ 2 (x) + 2sinx +1 = 0

y = sinx

4y ^ 4 -3y ^ 2 + 2y + 1 = 0

sinx = y = -1 or -0.3478

x = 270, 180-22.61 or -22.61 degrees

x = 270, 157.39 or 337 .39 degrees

x = 3pi / 2, 0.13pi or 1.87pi radians

x = 4.71, 0.41 Or 5.89 radians

For more information about trigonometry, visit brainly.com/question/24349828

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2 years ago

For what value of x is the rational expression below equal to zero

Elena L [17]

X = 2

S P A C E F I L L E R L O L

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3 years ago

If a car factory checks 320 cars and 12 of them have defects, how many out of 560 will have defects? Use proportions

Shkiper50 [21]

Answer:

Total number of cars having no defection $= 539$

Total number of cars out of 560 will have defects = $560 - 539 = 21$

Step-by-step explanation:

A car factory checks 320 cars, and

12 of them have defects.

Total number of cars = 560

The number of cars defected out of the cars that have

been checked = $320 - 12 = 308$

The equation of the scenario will be:

$\left[560\:\times \:308\right]\:\div \:320$ ⇒ $\frac{172480}{320}=539$

Total number of cars having no defection $= 539$

Total number of cars out of 560 will have defects = $560 - 539 = 21$

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2 years ago

137x723+462x50=?

algol [13]

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2 years ago

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What is 8 divided by 9.68?<br><br>show in standard algorithm

Svet_ta [14]

Answer:

0.82644628099

Step-by-step explanation:

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2 years ago