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vaieri [72.5K]
2 years ago
10

Hi guys im stuck on this maths question (2/5)^-3

Mathematics
2 answers:
Sholpan [36]2 years ago
6 0

Answer:

15.625

Step-by-step explanation:

egoroff_w [7]2 years ago
3 0

Answer:

(\frac{2}{5} ) {}^{ - 3}  \\  =  (\frac{a}{b} ) {}^{ - x}  =  (\frac{b}{a} ) {}^{x}  \\  so  \:  \:  \:  \:  \:  \:  (\frac{2}{5} ) {}^{ - 3}  \\  =  (\frac{5}{2} ) {}^{3}  \\  =   \frac{5 {}^{3} }{2 {}^{3} }  \\  \:  = \:    \frac{125}{8}

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Anika [276]

a) Is the twitch - initial positive twitch or sudden movement, which is what makes the car jolt into action.

b) is the acceleration - graph shows the acceleration and deceleration of the car.

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5 0
3 years ago
What is the volume of a sphere with a radius of 7 cm? Sphere V = 4 3 πr3 1. Substitute the radius into the formula:    V = 4 3 π
netineya [11]

Answer:

1436.75504 or 1372/3π cm^3

Step-by-step explanation:

The volume of a sphere can be found using:

V = 4/3 πr^3

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V = 4/3 π7^3

Evaluate the exponent

V = 4/3 π 343

If we want the answer in terms of pi, multiply the two other numbers, that are not pi: 4/3 and 343.

v= (4/3*343)π

v=1372/3π

If we want an exact answer, multiply 1372/3 and pi

v=1436.75504

So, the volume is 1436.75504 or 1372/3 π cm^3

4 0
3 years ago
Read 2 more answers
If segment FD = 20 units and segment DE = 52 units, what is the value of b? Round the solution to the nearest hundredth.
Readme [11.4K]

Answer:

b = 22.62^{o}

Step-by-step explanation:

Since the triangle is a right angled triangle, the appropriate trigonometric function can be applied to determine the value of b.

Thus, to determine the value of b;

Sin θ = \frac{opposite}{hypotenuse}

Sin b =  \frac{20}{52}

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          = 0.38462

⇒ b = Sin^{-1} 0.38462

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b = 22.62^{o}

The measure of angle E (= b) is 22.62^{o}.

         =

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3 years ago
The sum of the series 5(1/2)^i is x/1024 Then x =
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I just got this question. I think the answer is 5.
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3 years ago
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G(r)=-(r+11)(r+14) <br><br>what are the zeros &amp; what is the vertex
Nitella [24]

Answer:

The roots (r) or the Zeros ( other name ) = -11 and -14

Step-by-step explanation:

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