Really need help anybody!?!

Answer:

In scientific notation:

The first number in the mathematical equation is called the "coefficient." The coefficient must be greater than or equal to one and less than 10. For example to create the scientific notation for the number 256, the coefficient would be 2.56.

The second number in the equation is a power of 10, written as 10 with an exponent, like 102 which stands for 10 x 10.

Combining these two numbers would create this scientific notation equation for 256 - 2.56 x 102.

A negative exponent shows the decimal is moved that many places to the left and a positive exponent shows the decimal is moved that many places to the right.

Scientific Notation Examples

Here are examples of scientific notation:

1 = 100

10 = 1 x 10¹

100 = 1 x 10²

1000 = 1 x 10³

10000 = 1 x 104

100000 = 1 x 105

42,000,000 = 4.2 x 107

676,000,000,000 = 6.76 x 1011

0.1 = 1 x 10-1

0.01 = 1 x 10-2

0.001 = 1 x 10-3

0.0001 = 1 x 10-4

0.00001 = 1 x 10-5

0.00000078 = 7.8 x 10-7

0.000000000000000 = 3.56 x 10-13

Real Life Examples of Scientific Notation

Explore how scientific notation is used to express large numbers.

7 x 109 = Population of the world is around 7 billion written out as 7,000,000,000

1.08 x 109 = Approximate speed of light is 1080 million km per hour or 1,080,000,000 km per hour

2.4 x 105 = Distance from the Earth to the moon is 240 thousand miles or 240,000 miles

9.3 x 107 = Distance from the Earth to the sun is 93 million miles or 93,000,000 miles

3.99 x 1013 = Distance from the sun to the nearest star (Proxima Centauri) is 39,900,000,000,000 km

9.4605284 × 1015 = Distance light travels in a year is less than 9.5 trillion kilometers, or exactly 9,460,528,400,000,000 km

1.4 x 108 = Amount of water surface area on the Earth is 140 million square miles or 140,000,000 square miles

1.0 x 1014 = Approximate number of cells in the human body is 100 trillion or 100,000,000,000,000

1.332 x 10-3 = Density of oxygen is 1332 millionths g per cc or .001332 g per cc

2.4 x 10-3 = Diameter of a grain of sand is 24 ten-thousandths inch or .0024 inch

7.53 x 10-10 = Mass of a dust particle is 0.000000000753 kg

9.1093822 × 10-31 = Mass of an electron is 0.00000000000000000000000000000091093822 kg

4.0 x 10-7 = Length of the shortest wavelength of visible light (violet) is 0.0000004 meter

Answer:

12 red marbles

Step-by-step explanation:

9/4.5 to get 2 white marbles

54/4.5 to get 12 white marbles

Answer:

I think its 43.98 or 44 I think its one of those

Step-by-step explanation:

C=2πr=2·π·7≈43.9823

=2π(7)=2⋅722⋅7=2⋅22=44 cm.

The measure of the third angle, if the other angles measure 44.3 and 52.4, is 83. 3 degrees.

To determine the angle, we need to know the following;

Then, from the information given, we have that;

A triangle has an angle that measures 44.3 and another that measures 52.4"

Then, we get; x + 52.4 + 44.3 = 180

collect the like terms'

x = 180 - 96.7

x = 83. 3 degrees

Learn about angles at: https://brainly.com/question/25716982

#SPJ2

Recurrence functions are used to preedict the subsequent value in a sequence. The fourth term of the sequence based on the recurrence relation is 25

Given the recurrence relations according to the question

s(1) = 2 and

s(2)=3

s(k) =s(k-1)+2s(k-2)+6

If s(1) = 2, hence;

s(3) =s(3-1)+2s(3-2)+6

s(3) = s2 + 2s1 + 6
s(3) = 3 + 2(2) + 6
s(3) = 13

Determine the fourth term:

s(4) =s(4-1)+2s(4-2)+6

s(4) = s3 + 2s2 + 6
s(4) = 13 + 2(3) + 6
s(4) = 25

Hence the fourth term of the sequence based on the recurrence relation is 25

Learn more on recurrence relation here: https://brainly.com/question/10636530

Answer:520 yd

Step-by-step explanation:

multiply 13 x 10 x 8 then divide by 2

I think

Answer:

1) C or B

2) J

3) C

4) J

Step-by-step explanation:

1) I am not sure but I think you start with the x so that is -5 then y which is 7 so y= 5/7x - 5 or y= 7/5x - 5

2) The graph always starts at the origin (0.0) that where the line should be put
3) 39 in + 78 in = 117 in

4)

2/3.5 = 0.57

4/7 = 0.57

6/9 = 0.57

7/12 = 0.57

Answer:

[tex]\sf 0.53\quad and \quad \dfrac{53}{100}[/tex]

Step-by-step explanation:

Convert the end points to decimals:

[tex]\textsf{5 tenths}=\dfrac{5}{10}=5 \div 10=0.5[/tex]

[tex]\textsf{6 tenths}=\dfrac{6}{10}=6\div 10=0.6[/tex]

If the number line has 9 tick marks between the endpoints, there will be 10 equal spaces (see attachment), so the tick marks denote hundredths.

The difference between 0.6 and 0.5 = 0.1

Divide this by 10:   0.1 ÷ 10 = 0.01

Therefore, each tick mark on the number line denotes hundredths and is 0.01 greater than the previous tick mark.

If Point A is labeled on the third mark after 5 tenths then:

A = 0.5 + 0.01 + 0.01 + 0.01 = 0.53

0.53 as a fraction:

[tex]\implies 0.53 = \dfrac{0.53}{1}=\dfrac{0.53 \times 100}{1 \times 100}=\dfrac{53}{100}[/tex]

Therefore, point A is:

[tex]\sf 0.53\quad and \quad \dfrac{53}{100}[/tex]

Answer: i need points

Step-by-step explanation:

Step-by-step explanation:

3 parts in figure

1 cube and 2 hemispheres

surface area of cube = 6a^2= 6*144= 864 mm^2

surface area of hemisphere = 3*π*r^2 =108π

2 hemispheres = 214π mm^2

total surfaCe area = 1542 mm^2

Answer:

c

Step-by-step explanation:

Each of the five spaces on the spinner are equal so the theoretical probability for one space (Q) is 1/5. For the experimental probability, they spun it 15 times and 4 times it landed on Q so 4/15 times.

Answer:

x= 180° - (103°+33°)

x= 180° - 136°

x= 44°

Answer:

negative linear

Step-by-step explanation:

as you see the correlation is going negative in a linear line.

Answer:

Area of square - area of circle

Step-by-step explanation:

Answer:

13,62,75,48,1092

Step-by-step explanation:

1+3=4, 6+2=8, 7+5=12, 4+8=12& 1+0+9+2=12.

Answer:

Whats the numbers can u give me them?

Step-by-step explanation:

x=115tcos57

y=115tsin57-16t^2

Answer:

54

Step-by-step explanation:

54 + 53 = 107

54

[tex] \: \: \: \: \: \: \: \: \: \: \: \bold{54 + 53 = 107}[/tex]

Note : To solve a problem like this, all we have to do is find a number that matches the result, in this case it is [tex]\bold{54}[/tex] and [tex]\bold{53}[/tex]

[tex]\therefore[/tex] it gives us a result of [tex]\bold{107.}[/tex]

Answer:

Infinite answers is the correct answer

Step-by-step explanation:

Answer:

a) 70°

Step-by-step explanation:

∠3 = 110

∠5 = ∠1

∠1 = 180 - ∠3

∠1 = 180 - 110

∠ 1 = 70

∠5 = ∠1 (corresponding angles postulate)

∠5 = 70

[tex]\stackrel{\textit{3 standing triangles}}{3\left[\cfrac{1}{2}(\stackrel{b}{3})(\stackrel{h}{3}) \right]}~~ + ~~\stackrel{\textit{triangular base}}{\cfrac{1}{2}(3)(2.6)}\implies 13.5~~ + ~~3.9\implies 23.4~m^2[/tex]

Answer:

Once the equation is given, the question can be answered, with no equation, no one can find the answer

Step-by-step explanation: I will edit my answer when the equation is given

Answer: a

Step-by-step explanation:

Answer:

12(4+3)

Step-by-step explanation:

Answer:

(x-18)²+(y+18)²=18².

Step-by-step explanation:

1) the formula is: (x-x₀)²+(y-y₀)²=r², where (x₀;y₀) - coordinates of the centre, r - the length of the radius;

2) according to the formula above:

(x-18)²+(y+18)²=18².

Answer:

23

Step-by-step explanation:

this is because it is 23

Answer:

speed=distance ÷time

speed=748÷12

speed=6.333

Answer:

10%

Step-by-step explanation: There are 5 numbers between 5 and 50 that end in 9. 5 is 10 percent of 50. Pls give brainliest.

Answer:

2,355 cubic units

Step-by-step explanation:

We will see that the volume of the sphere is 2,355 cubic units.

How to get the volume of a sphere?

We know that for a sphere of radius R, the volume is given by:

Here we know that:

R = 10 units

pi = 3.14

Replacing that in the volume equation we get:

So the volume of the sphere is 2,355 cubic units.

Answer:

1, -1

Step-by-step explanation:

(-2/3)⁰

Anything that is raised to the power of 0 automatically becomes the value 1. Knowing this, apply the exponent.

(-2/3)⁰ = 1

-(7)⁰

Now using what we know, apply the exponent to the 7.

-(7)⁰ = -1

Notice that the negative is NOT inside the parenthesis and therefore does NOT get affected by the power.

Answer:

21

Step-by-step explanation:

A=LxW=7x3=21 The length was 7 and the width was 3.

The answer would be B: 15.

Answer: Option C

Step-by-step explanation: