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1 year ago

Solve for x. 0.5x – 0.3/ 4=0.3

Mathematics

1 answer:

vladimir1956 [14]1 year ago

6 0

Answer:

x=0.75

Step-by-step explanation:

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Which statements are true about the trigonometric ratios of this triangle

rosijanka [135]

Answer:

Options (1), (2), (3) and (4)

Step-by-step explanation:

By applying the sine and cosine rules in the given triangle,

sinθ = $\frac{\text{Opposite side}}{\text{Hypotenuse}}$

cosθ = $\frac{\text{Adjacent side}}{\text{Hypotenuse}}$

cos(30°) = $\frac{AC}{AB}$

= $\frac{11\sqrt{3} }{22}$

= $\frac{\sqrt{3}}{2}$

sin(30°) = $\frac{BC}{AB}$

= $\frac{11}{22}$

= $\frac{1}{2}$

cos(60°) = $\frac{BC}{AB}$

= $\frac{11}{22}$

= $\frac{1}{2}$

sin(60°) = = $\frac{AC}{AB}$

= $\frac{11\sqrt{3} }{22}$

= $\frac{\sqrt{3}}{2}$

Options (1), (2), (3) and (4) are the correct options.

3 0

3 years ago

Solve the equation for x.<br> 2/3x-1/9x+5=20

Over [174]

Answer:

x = 27

Step-by-step explanation:

I'm assuming the equation looks like this:

$\frac{2}{3}x-\frac{1}{9}x+5=20$

Here's how to solve for x:

$\frac{2}{3}x-\frac{1}{9}x+5=20$

(subtract 5 from both sides)

$\frac{2}{3}x-\frac{1}{9}x=15$

(Find the GCF of 3 and 9, which is 3. Multiply 2/3 by 3/3. You get 6/9)

$\frac{6}{9}x-\frac{1}{9}x=15$

(add like terms)

$\frac{5}{9}x=15$

(multiply 9/5 to both sides, which is the same as dividing both sides by 5/9)

x = 27

Hope it helps (●'◡'●)

8 0

3 years ago

How do you solve those two problems?

Rom4ik [11]

I hope this helps you

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3 years ago

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Anton [14]

Answer:

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3 years ago

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jasenka [17]

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3 years ago