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3 years ago

What is the value of y?

Mathematics

2 answers:

Ivahew [28]3 years ago

7 0

Answer:

y = 8

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin30° = $\frac{1}{2}$ , then

sin30° = $\frac{opposite}{hypotenuse}$ = $\frac{4}{y}$ = $\frac{1}{2}$ ( cross- multiply )

y = 8

12345 [234]3 years ago

4 0

Answer:

the answer to that is 4 hope it help

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Solve each equation and check your solution <br> -3w-4=w+3

denpristay [2]

Answer:

$\boxed {w = - \frac{7}{4} }$

Step-by-step explanation:

We want to solve the linear equation -3w-4=w+3

We group like terms to get

$- 3w - w = 3 + 4$

$- 4w = 7$

Divide both sides by -4

$w = - \frac{7}{4}$

Now let us check

$- 3 \times - \frac{7}{4} - 4 = - \frac{7}{4} + 3$

$\frac{21}{4} - \frac{16}{4} = - \frac{7}{4} + \frac{12}{4}$

$\frac{5}{4} = \frac{5}{4}$

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3 years ago

Convert the angle 2π/3 radians to degrees.

11111nata11111 [884]

Answer:

2π/3 radians is equal to 120°.

Step-by-step explanation:

In this problem, we need to convert the angle 2π/3 radians to degrees.

The relation radian and degree is given by :

$D=\dfrac{180}{\pi}\times R$

Substitute all the values,

$D=\dfrac{180}{\pi}\times \dfrac{2\pi }{3}\\\\D=120^{\circ}$

So, 2π/3 radians is equal to 120°.

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3 years ago

Mohamed surveyed his class on their favorite candy bar. 8 picked Snickers. 6 picked Kit Kats. 6 picked Milky Ways. If he applied

Gnom [1K]

Answer:

600:450:450

Step-by-step explanation:

8+6+6= 20

1500/20=75

8*75= 600

6*75= 450

6*75=450

Check:

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450/75=6

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8_murik_8 [283]

Answer:

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Step-by-step explanation:

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