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UkoKoshka [18]
3 years ago
13

Can someone help me with this

Mathematics
1 answer:
Gennadij [26K]3 years ago
8 0

Answer:

  k = 4

Step-by-step explanation:

The two points shown are ...

  g(1) = 10

  f(4) = 10

Comparing this to the given relation, we can see that ...

  g(x) = f(kx)

  g(1) = f(4)

x=1 and kx =4, so k=4.

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A hoop, a uniform solid cylinder, a spherical shell, and a uniform solid sphere are released from rest at the top of an incline.
Serjik [45]

Answer:

Step-by-step explanation:

Given

Hoop, Uniform Solid Cylinder, Spherical shell and a uniform Solid sphere released from Rest from same height

Suppose they have same mass and radius

time Period is given by

t=\sqrt{\frac{2h}{a}} ,where h=height of release

a=acceleration

a=\frac{g\sin \theta }{1+\frac{I}{mr^2}}

Where I=moment of inertia

a for hoop

a=\frac{g\sin \theta }{1+\frac{mr^2}{mr^2}}

a=\frac{g\sin \theta }{2}

a for Uniform solid cylinder

a=\frac{g\sin \theta }{1+\frac{mr^2}{2mr^2}}

a=\frac{2g\sin \theta }{3}

a for spherical shell

a=\frac{g\sin \theta }{1+\frac{2mr^2}{3mr^2}}

a=\frac{3g\sin \theta }{5}

a for Uniform Solid

a=\frac{g\sin \theta }{1+\frac{2mr^2}{5mr^2}}

a=\frac{5g\sin \theta }{7}

time taken will be inversely proportional to the square root of acceleration

t_1=k\sqrt{2}=1.414k

t_2=k\sqrt{\frac{3}{2}}=1.224k

t_3=k\sqrt{\frac{5}{3}}=1.2909k

t_4=k\sqrt{\frac{7}{5}}=1.183k

thus first one to reach is Solid Sphere

second is Uniform solid cylinder

third is Spherical Shell

Fourth is hoop

3 0
3 years ago
Many airline companies have begun implementing fees for checked bags. Economic theory predicts that passengers will respond to t
valentinak56 [21]

Answer:

Step-by-step explanation:

a. The hypothesis test is  one tailed_____ test.

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b. df = 66

Reject H0 if t ≥ 1.668

c. The p-value is_____0.059444

d. Using the critical value approach, the null hypothesis is _accepted____, because __t <1.668___ Using the p-value approach, the null hypothesis is__accepted___, because__p value <0.05 our significance level.___ Therefore, you __may___ conclude that the mean weight of the airline's passengers' carry-on items has increased after the implementation of the checked-bag fee.

4 0
2 years ago
A mine elevator was at a depth of -120 feet. After 15 seconds, the mine elevator was at a depth of -30 feet. Which expression sh
KonstantinChe [14]
-120 + -30 = 90. 90/15 = 6
Answer ; 6mph
8 0
3 years ago
The perimeter of the following square can be found by using the expression 4(4x + 5).
Ber [7]
4(4x + 5)
4(4•7+5)
4(28+5)
4(33)
132
4 0
2 years ago
Write the equation of a line that has a slope of -1/3 and an x-intercept of 6
Zigmanuir [339]

Answer:

y = -1/3x + 2

Step-by-step explanation:

y = -1/3x + b

insert the x-intercept to find b

0 = -1/3(6) + b

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y = -1/3x + 2

4 0
2 years ago
Read 2 more answers
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