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labwork [276]
2 years ago
5

A = − 5 ; b = 7 ; c = 1 − 2 a + 4 b − c 2=

Mathematics
1 answer:
lawyer [7]2 years ago
8 0
Answer:13

Step by step solution: see photo
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A hamster running in a wheel of radius 13 cm spins the wheel at 35 revolutions per minute.
crimeas [40]

One revolution is completed when a fixed point on the wheel travels a distance equal to the circumference of the wheel, which is 2π (13 cm) = 26π cm.

So we have

1 rev = 26π cm

1 rev = 2π rad

1 min = 60 s

(a) The angular velocity of the wheel is

(35 rev/min) * (2π rad/rev) * (1/60 min/s) = 7π/6 rad/s

or approximately 3.665 rad/s.

(b) The linear velocity is

(35 rev/min) * (26π cm/rev) * (1/60 min/s) = 91π/6 cm/s

or roughly 47.648 cm/s.

5 0
3 years ago
PPPPPPPPPPPPPPPPLLEASE HELP I GOT LIKE 1 MIN!!!!!
Rina8888 [55]

Answer:

its A x=2.5

Hope this helps :)

4 0
3 years ago
Use an algebraic approach to solve the problem.
qaws [65]

Answer:

Her first exam score was a 78, her second exam score was a 89, and his third exam score was a 94.

Step-by-step explanation:

Use the formula for the mean: sum of elements / number of elements

Let x represent her first exam score.

Her second exam score can be represented by x + 11, since it was 11 points better than her first.

Her third exam score can be represented by (x + 11) + 5, since it was 5 points better than her second.

Plug in all of these expressions into the mean formula. Plug in 87 as the mean, and plug in 3 as the number of elements (since there are 3 scores):

mean = sum of elements / number of elements

87 =  ( (x) + (x + 11) + (x + 11) + 5 ) / 3

Add like terms and solve for x:

87 = (3x + 27) / 3

261 = 3x + 27

234 = 3x

78 = x

So, her first score was a 78.

Find her second score by adding 11 to this:

78 + 11 = 89

Find her third score by adding 5 to the second score:

89 + 5 = 94

Her first exam score was a 78, her second exam score was a 89, and his third exam score was a 94.

6 0
3 years ago
16.45 markdown 33% what’s the anwser
Fittoniya [83]

dude, use a calculator

Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
Could the table x,y pairs have been generated by a linear function x 1,2,3,4 y 3,5,7,9
Serjik [45]
Thanks for the link tysmmmmmm
8 0
3 years ago
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