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2 years ago

7

After polling a class of 24 students by a show of hands, you find that 9 students play soccer and 21 students play basketball. g

iven that information, what is the number of students in the class who must play both soccer and basketball?

1 answer:

MArishka [77]2 years ago

7 0

The answer is 6 because 21+9=30 and 30-6=24 and 24 is the number of students in the class.

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What are statements that are true for the following expression?<br> (9 + 1) · 5

Bess [88]

Answer:

One statement that is true is that it equals 50

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2 years ago

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Serggg [28]

Answer:

y = 3x + 1.

Step-by-step explanation:

The slope is y2-y1/x2-x1

= 10/1/ 3-0

= 9/3

= 3.

Using the point-slope form for a straight line:

y-y1 = m(x-x1) (m = slope)

y - 10 = 3(x - 3)

y - 10 = 3x - 9

y = 3x - 9 + 10

y = 3x + 1 is the required equation.

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2 years ago

Explain why solving the equation - 3n - 4 = 2 is different from solving the

Klio2033 [76]

Answer:

Step-by-step explanation:

First get the answer to -3n - 4 = 2

-3n - 4 + 4 = 2 + 4

-3n = 6

n = 6/-3

n = -2

That answer is the only one that is permitted. It is the only one that completely satisfies the equation.

Now when you do the inequality, look what happens.

-3n - 4 < 2 Add 4 to both sides.

-3n-4+ 4 < 2+4

-3n < 6 Now there are a bunch of ways (2) to solve this.

No matter which way you do it, the arrow will change.

-3n/-3 > 6/-3

n > - 2

That means that any number that is greater than - 2 will satisfy the inequality.

So n = 0 will work. Even n = - 1 will work. Anything bigger than -2 will work. The equation does not provide that kind of latitude.

7 0

2 years ago

I’m making this question again because people just keep stealing points

Arlecino [84]

Slope between two points =

(Change in y) / (change in x) .

For these points, that's -7/5 .

4 0

2 years ago

Read 2 more answers

Please help with these

Nookie1986 [14]

The values would be

sin2x = -3/5

cos2x = -4/5

tan2x = 3/4

What are double angles in trigonometry?

The double angle formulas are used to find the values of double angles of trigonometric functions using their single angle values. For example, the value of cos 30° can be used to find the value of cos 60°. Also, the double-angle formulas can be used to derive the triple-angle formulas.

Given: tanx = -3

Now as we know,

$sin2x=\frac{2tanx}{1+tan^2x}\\\\sin2x=\frac{2(-3)}{1+(-3)^2}\\\\sin2x=\frac{-6}{10}\\\\sin2x=\frac{-3}{5}$

Now

$cos2x=\frac{1-tan^2x}{1+tan^2x}\\\\cos2x=\frac{1-(-3)^2}{1+(-3)^2}\\\\cos2x=\frac{1-9}{1+9}\\\\cos2x=\frac{-8}{10}\\\\cos2x=\frac{-4}{5}$

And similarly, we can find the value of tan2x, as

tan2x = sin2x/cos2x

= (-3/5)/(-4/5)

= 3/4

Hence,

The values would be

sin2x = -3/5

cos2x = -4/5

tan2x = 3/4

To learn more about double angles in trigonometry, visit:

brainly.com/question/6277459

#SPJ1

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1 year ago