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4 years ago

What is scientific notation? Give an example.

Mathematics

2 answers:

TEA [102]4 years ago

7 0

Answer:

Scientific notation is a mathematical expression used to represent a decimal number between 1 and 10 multiplied by ten, so you can write large numbers using less digits. An example of scientific notation is when you write 4 x 10³ for 4,000.

Hope this helps!

Mumz [18]4 years ago

7 0

Answer:

Scientific notation (also referred to as scientific form, standard form or standard index form) is a way of expressing numbers that are too big or too small to be conveniently written in decimal form. It is commonly used by scientists, mathematicians and engineers, in part because it can simplify certain arithmetic operations. On scientific calculators it is known as "SCI" display mode.

In scientific notation all numbers are written in the form

m × 10n

(m times ten raised to the power of n), where the exponent n is an integer, and the coefficient m is any real number, called the significand or mantissa.[1] However, the term "mantissa" may cause confusion because it is the name of the fractional part of the common logarithm. If the number is negative then a minus sign precedes m (as in ordinary decimal notation). In normalized notation, the exponent is chosen so that the absolute value of the coefficient is at least one but less than ten.

Decimal floating point is a computer arithmetic system closely related to scientific notation.

Step-by-step explanation:

Hope this helps :) Brainliest please

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Step-by-step explanation:

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3 years ago

Triangle BAC was rotated 90° clockwise and dilated at a scale factor of 2 from the origin to create triangle XYZ. Based on these

ANEK [815]

Answer:

The correct option is;

∠A ≅ ∠X

Step-by-step explanation:

The given coordinates of the points of triangle ACB are;

A(-4, 4), C(-1, 3), B(-4, 0)

The given coordinates of the points of triangle XYZ are;

X(0, 8), Y(8, 8), Z(6, 2), therefore, we have

The length. l. of segment is given by the following formula;

$l = \sqrt{\left (y_{2}-y_{1} \right )^{2}+\left (x_{2}-x_{1} \right )^{2}}$

For the length of the segment AC; (x₁, y₁) = (-4, 4), (x₂, y₂) = (-1, 3), l = √(10)

For the length of the segment AB; (x₁, y₁) = (-4, 4), (x₂, y₂) = (-4, 0), l = 4

For the length of the segment BC; (x₁, y₁) = (-4, 0), (x₂, y₂) = (-1, 3), l = 3·√2

For the length of the segment XY; (x₁, y₁) = (0, 8), (x₂, y₂) = (8, 8), l = 8

For the length of the segment XZ; (x₁, y₁) = (0, 8), (x₂, y₂) = (6, 2), l = 6·√2

For the length of the segment ZY; (x₁, y₁) = (6, 2), (x₂, y₂) = (8, 8), l = 2·√(10

Therefore;

XY ~ AB, XZ ~ BC, ZY ~ AC

Which gives;

∠A ≅ ∠X, ∠B ≅ ∠Y, ∠C ≅ ∠Z

8 0

3 years ago

Read 2 more answers

The positive difference of two integers is 13. The sum of the larger number and the square of the smaller is 103. Give your solu

nydimaria [60]

Answer:

(22, 9)

Step-by-step explanation:

The positive difference of two integers is 13. The sum of the larger number and the square of the smaller is 103. Give your solution(s) as ordered pair (larger, smaller). I'll call the two integers a and b.

a - b = 13 a + b² = 103

+b +b

a = 13 + b plug this into the second equation

a + b² = 103

(13+b) + b² = 103 subtract 103 from both sides to get one side equal to zero

-103 -103

b² + b - 90 = 0 what factors (two numbers multiply) to -90 that also add up

to 1? The only two that work are -9 and 10.

(b-9)(b+10) = 0 so b-9 = 0 or b+10 = 0

+9 +9 or -10 -10

b = 9 or b = -10 but both numbers must be positive

b = 9 and a = 13 + b so a = 13 + 9 = 22

(22, 9)

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4 years ago

Help me on this problem plz

Tems11 [23]

Answer:

14 a^2 b =l

Step-by-step explanation:

A = l*w

We know the area = 112 a^3 b^2 and the width is 8ab

112a^3b^2 = l * 8ab

Divide each side by 8ab

112 a^3 b^2/8ab = l

112/8 a^3/a b^2/b = l

14 a^2 b =l

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3 years ago

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