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enyata [817]
3 years ago
12

PLZ HELP WILL GIVE BRAINLIEST!!!!!!

Mathematics
1 answer:
Rashid [163]3 years ago
8 0
She should use a computer to select 30 students at random then ask which ones play chess. The other options could produce more skewed results.
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Find the value of x.
Gnoma [55]

Answer:

x = 10

Step-by-step explanation:

Since the triangle is right use the sine ratio to find x

sin30° = \frac{opposite}{hypotenuse} = \frac{5}{x}

cross- multiply

x × sin30° = 5 ( sin30° = 0.5 )

0.5x = 5 ( divide both sides by 0.5 )

x = 10

5 0
3 years ago
Read 2 more answers
Please answer!!!!!! will mark brainliest
timofeeve [1]

Answer:

The answer is 2/5 or 5.25

Step-by-step explanation:

5 sections so out of 5 and it said A or B so it is 2/5

5 0
3 years ago
the volume of a large can of tuna fish can be calculated by using the formula V= *pi*r^2h. write an equation to find the radius,
Svet_ta [14]
V= pi x r^2 x h

V/(pi x h)=r^2

square root of [V/(pixh)]=r
4 0
3 years ago
Read 2 more answers
If x ¤ y = (x + y)² - (x - y)² <br> Then √5 ¤ √5 =
Hoochie [10]
x\ \diamond\ y=(x+y)^2-(x-y)^2=x^2+2xy+y^2-(x^2-2xy+y^2)\\\\=x^2+2xy+y^2-x^2+2xy-y^2=4xy\\\\\sqrt5\ \diamond\ \sqrt5=4\cdot\sqrt5\cdot\sqrt5=4\cdot5=20
5 0
3 years ago
Write an equation of a line in slope intercept form that is perpendicular to the line 2x -3y = 12 and passes through the point (
Scilla [17]

Answer:

The equation of the line would be y = -3/2x + 9

Step-by-step explanation:

In order to solve this, start by finding the slope of the original line. You can do this by solving for y.

2x - 3y = 12

-3y = -2x + 12

y = 2/3x - 4

Now that we have a slope of 2/3, we know that the perpendicular slope is -3/2 (since perpendicular lines have opposite and reciprocal slopes). We can use this and the new point in point-slope form to find the equation.

y - y1 = m(x - x1)

y - 6 = -3/2(x - 2)

y - 6 = -3/2x + 3

y = -3/2x + 9

4 0
3 years ago
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