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3 years ago

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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.

1 answer:

VashaNatasha [74]3 years ago

7 0

Answer:

Step-by-step explanation:

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Tamika has a hard rubber ball whose circumference measures 13 inches. she wants to box it for a gift but can only find cube-shap

Ostrovityanka [42]

The rubber ball, in this case, can be considered a circle with a circumference of 13 inches. So, we can find the diameter of the rubber ball using the formula $C=\pi d$ or $d=\frac{C}{\pi }$ . That is
$d=\frac{C}{\pi }=\frac{13\:inches}{\pi }=\frac{13}{\pi }=4.14\:inches$

Therefore, the diameter is greater than 4 inches and less than 5 inches. That means the smallest box that the ball will fit into with the top on is the 5 inches box.

3 0

3 years ago

Why is this the answer?

alexdok [17]

Answer:

B 1/y^3

Step-by-step explanation:

The negative exponent says move it from the numerator to the denominator

(If it were in the denominator we would move it to the numerator)

y^-3 becomes 1/y^3

5 0

3 years ago

Find the exact values of cos 3 pi/4 radians sin 3 pi/4 radians HELP!

bixtya [17]

In degrees: 3π/4 radians = 135°
Angle of x=135° is in the 2nd Quadrant and has negative cos x values and positive sin x values.
cos 135° = cos ( 90° + 45°)= - sin 45° = $- \frac{ \sqrt{2} }{2}$
sin 135° = sin ( 90° + 45° ) = cos 45° = $\frac{ \sqrt{2} }{2}$ . You can also see the graph in the attachment.

8 0

3 years ago

Whats the answer 5h-8=2h+19 equality

djyliett [7]

Answer:

Step-by-step explanation:

5h-8=2h+19

5h-2h=19+8

3h=27

h=27/3

h=9

4 0

3 years ago

Help me with this please

bekas [8.4K]

Answer:

f(-5) = 4(-5) + 1 = -20 + 1 = -19

f(-1) = 4(-1) + 1 = -4 + 1 = -3

f(2) = 4(2) + 1 = 8 + 1 = 9

f(3) = 4(3) + 1 = 12 + 1 = 13

f(5) = 4(5) + 1 = 20 + 1 = 21

7 0

3 years ago