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lesya [120]
3 years ago
9

You randomly survey 40 students about whether they play an instrument. You find that 8 males play an instrument and 13 females d

o not play an instrument. A total of 17 students in the survey play an instrument. Make a two-way table that includes the marginal frequencies.
Mathematics
1 answer:
VashaNatasha [74]3 years ago
7 0

Answer:

Step-by-step explanation:

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Help with trigonometry​
Oksanka [162]

Answer:

○B. \frac{\sqrt{6}}{2}

Step-by-step explanation:

Trigonometric Identities

\frac{y}{r} = sin\:θ

\frac{x}{r} = cos\:θ

\frac{y}{x} = tan\:θ

\frac{r}{x} = sec\:θ

\frac{r}{y} = csc\:θ

\frac{x}{y} = cot\:θ

<u>Radius Formula</u>

{y}^{2} + {x}^{2} = {r}^{2}

{[-\sqrt{15}]}^{2} + {[-\sqrt{10}]}^{2} = {r}^{2} → 15 + 10 = {r}^{2} → 25 = {r}^{2}\\ \\ 5 = r

* Since we are talking about radii, we only want the NON-NEGATIVE root.

In this case, we will not be using the radius in our ratio, according to the trigonometric identity above because we are using the <em>tangent</em><em> </em>ratio:

\frac{\sqrt{6}}{2} = \frac{-\sqrt{15}}{-\sqrt{10}} = \sqrt{1\frac{1}{2}}

I am joyous to assist you anytime.

4 0
3 years ago
Solve the following equation for x, in terms of a and b. ax = 15 + bx
charle [14.2K]

Value of x will be x=\frac{15}{a-b}.

Equation given in the question → ax=15+bx

To find the value of 'x' in terms of a and b, we will simplify the given equation,

ax=15+bx

ax-bx=(15+bx)-bx

x(a-b)=15

x=\frac{15}{a-b}

           Therefore, Values to filled → Blank 1 = 15

                                                           Blank 2 = (a - b)

Learn more,

brainly.com/question/14318220

8 0
3 years ago
Why doesn't the existence of a correlation always indicate a cause and effect relationship?
maxonik [38]
Because correlation and causation are 2 different links
4 0
3 years ago
What is the solution for x in the equation?
rjkz [21]

Answer:
10

Step-by-step explanation:

-3x+7x-8=34+9x-2

(Combine like terms)

4x-8=32

(Add 8 to each side)

4x=40

(Divide by 4)

X=10

5 0
2 years ago
Write an equation, in point-slope form, for the line that passes through (1, -5) and has a slope of -3.
Serggg [28]

Answer:

<u>y+5 =-3</u>

x-1

y+5=-3x +3

y=-3x-2

Step-by-step explanation:

8 0
2 years ago
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