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2 years ago

Which of the following values for x is true for 4x > 10

Mathematics

2 answers:

nekit [7.7K]2 years ago

6 0

Answer:

x>2.5

Step-by-step explanation:

Given 4x>10

divide 4 for both side

x>2.5

77julia77 [94]2 years ago

4 0

Anything under 2 would be true

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What is the only unknown (variable) needed to find the volume of a sphere?

yuradex [85]

Sphere

The radius of the sphere is the only unknown variable need to find the volume of a sphere.

Step-by-step explanation:

Sphere is a geometrical three dimensional round figure with every point on its surface equidistant from its center. It is a three dimensional representation of a circle. A line which connects from the center to the surface is called radius of the sphere.The diameter of the sphere is the longest straight line which passes through the center of the sphere.

The volume of sphere is given by:

Volume of sphere(V) = $\frac{4}{3}\pi r^{3} \\$

where V is the volume of the sphere

r is the radius of the sphere

$\pi = \frac{22}{7}$ = 3.14

Hence the only unknown variable to find the volume of a sphere is the radius.

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2 years ago

I think of a number.

Evgen [1.6K]

Answer:

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Step-by-step explanation:

4 0

2 years ago

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Please help! It would be very much appreciated :)

Trava [24]

Answer:

Cos 45=6/x

x=6/cos 45=6√2

x=6√2

tan 45=y/6

y=tan45 ×6

y=6

sin 60=y/10

y=sin60×10

y=5√3

again

Cos 60=x/10

x=½×10

x=5

Sin 45=x/5

x=1/√2×5 or

x=5√2/2

again

y=5√2/2 or 5/√2[base angle of right angled isosceles triangle]

Sin 30=8/x

½×x=8

x=8*2

x=16

again

cos 30= y/x

√3/2×16=y

y=8√3

sin 60=7/x

x=7/[√3/2]

x=14/√3 or 14√3/3

again

cos 60=y/x

½×14√3/3=y

7√3/2=y

y=7√3/2

Note:

Sin angle =perpendicular/hypotenuse

Cos angle =base/hypotenuse

Tan angle =perpendicular /base

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2 years ago

How many times can 256 go into 495

ddd [48]

Answer:

once

Step-by-step explanation:

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2 years ago

30% of number A is the same as 40% of number B. what could A and B ?

Sunny_sXe [5.5K]

9514 1404 393

Answer:

A = 4, B = 3

Step-by-step explanation:

You require that ...

0.30 × A = 0.40 × B

Then ...

B = (3/4)A . . . . . divide by 0.40

Any pair of numbers that satisfies this equation will be possible values of A and B. One such pair is (A, B) = (4, 3).

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2 years ago

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