What is 5 to the power of negative two

Answers

Answer 1

Answer: the answer is 3 best negative two is -2 so u have 5 - 2 and 3 is your answer

Answer 2

Answer: simplify the expression.Exact Form:125/125Decimal Form:0.04

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May someone please tell me the answer

The mean of a normally distributed dataset is 12, and the standard deviation is 2. what percent of the data points lies between 8 and 16?

Answers

$\mathbb P(8<X<16)=\mathbb P\left(\frac{8-12}2<\frac{X-12}2<\frac{16-12}2\right)=\mathbb P(-2<Z<2)$

The empirical rule states that approximately $95\%$ of a normal distribution lies within two standard deviations of the mean.

Charlie is at a small airfield watching for the approach of a small plane with engine trouble. He sees the plane at an angle of elevation of 32. At the same time, the pilot radios Charlie and reports the plane’s altitude is 1,700 feet. Charlie’s eyes are 5.2 feet from the ground.

Answers

X would be the ground distance from Charlie to the plane
tan 32° = (1700-5.2) / x
which would give you x = 2712.25 ft

Solve by completing the square: x^2+3x-9=0

Answers

Step-by-step explanation:

x=-4.854 or x=1.854

hope this helps

Answer:

C edge 2020

Step-by-step explanation:

i got it right on the practice.

Solve the equation for y.

4x – 5y = 9

Answers

The equation of y for that expression would be y = (-4x+9)/-5.

Increase £64 by 70%??????

Answers

I'm not sure if you used the euro sign accidentally or what but this is how to increase 64 by 70%

divide 64 by 10.
6.40
then multiply it by 7.
44.80
then add 44.8 to your original number. (64)
the answer is:
108.8

If you did put that sign there purposely and if it means something then I don't know if it matters or if this is right.

The diagram shows a 5 cm x 6 cm x 7 cm cuboid.Calculate the length of the diagonal AB.
4 Give your answer correct to 1 decimal place.
7 cm
1
6 cm
B
5 cm

Answers

9514 1404 393

Answer:

10.5 cm

Step-by-step explanation:

The length of the space diagonal is the root of the sum of the squares of length, width, and height.

AB = √(5² +6² +7²) cm = √110 cm ≈ 10.488 cm

AB ≈ 10.5 cm

_____

The space diagonal is the hypotenuse of the right triangle consisting of an edge (L) and the face diagonal of the face perpendicular to that edge. Of course that face diagonal is the root of the sum of squares of the orthogonal edges: √(W² +H²). So, the space diagonal is ...

AB = √(L² +(√(W² +H²))²) = √(L² +W² +H²)

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