what is scientific notation and how do you do it?​

Answers

Answer 1

Scientific notation is nothing but a rewriting of numbers in decimal number system by multiplying them with [tex]10^k[/tex] where k is a negative or positive whole number.


Related Questions

I need help with this please

Answers

Angle 1 and 2 are supplementary angles.

This is ur answer....

Supplementary angle.....

c-c+a+ |a|; use a = 4, and c=5

Answers

Answer:

c-c+a+|a|

5-5+4+|4|

8

Step-by-step explanation:

Find the value of a. then find the angle measures of the polygon


Answers

Answer is 2a=120 and a=60
2a+2a+a+a=360
6a=360
a=60

2a
2(60)=120

Hey what’s 20 times 20 minus 58 divided by 6? -3-

Answers

Answer:

390

Step-by-step explanation:

Answer:

57

Step-by-step explanation:

20*20=400

400-58=342

342/6=57

q log a -3 log b
Condense logarithm

Answers

Answer:

Step-by-step explanation:

q log a is equivalent to log a^q.  Note:  This assumes that the base of your logarithmic system is 10.

-3 log b is equivalent to log b^(-3)

and so   q log a -3 log b  in condensed logarithm form is

log {a^q*b^(-3)}

                 a^q

or log  -----------------

                 b^3    

PLZZZ HELPP anyonee plzzzz

Answers

Answer:

The correct answer is B

Step-by-step explanation:

its is B because when dividing fractions the division symbol changes into a multiplication sign and the fraction on the right flips

High Hopes^^

Barry-

The first one 3/7 x 4/5

What is the equation of a line with a
slope of -2 and crosses the vertical axis
at the point (0, 5)?

Answers

Answer:

y=-2x+5

Step-by-step explanation:

the slope is m and the y-intercept is b in the form y=mx+b, and -2 is the slope and 5 is the y-intercept in this equation, so y=-2x+5

Answer:

y=-2x+5

Step-by-step explanation:

y=mx+b

m is the slope which is -2

b is the y intercept which is given in the problem, 5

factorise
a) 4p²-81
b) x²-13x+36

Answers

Answer:

A = (2p + 9) (2p - 9)

B = (x - 9) (x - 4)

Step-by-step explanation:

For A : Rewrite 4p^2 as (2p)^2.

(2p)^2−81

Rewrite 81 as 9^2.

(2p)^2−9^2

Since both terms are perfect squares, factor using the difference of squares formula, a^2 − b^2 = ( a + b ) ( a − b ) where a = 2p and b = 9 .

(2p + 9) (2p − 9)

For B : Consider the form x^2 + bx + c . Find a pair of integers whose product is c and whose sum is b . In this case, whose product is 36 and whose sum is − 13 .

-9, -4

(x - 9) (x - 4)

I hope this helps.

Express the percent as a decimal.
30\%30%30, percent
Stuck help

Answers

If it’s 30% converted to a decimal it’ll be .30

7th GRADE WORK HELPPP!!! ILL BRAINLIST!!!

Answers

Answer: Rachel's prediction is faster than the actual unit rate, and Theadore's prediction is slower.

Answer:

I'm pretty positive the answer is B

Step-by-step explanation:

Since it's been 7 1/2 weeks and they thought it would grow atleast 2/5 a foot a week that should mean it's growing faster than anticipated.

I know it’s hard to read, but if u can, please help!!

Answers

Answer:

  4th choice (if we guessed the blurry letters properly)

Step-by-step explanation:

The reflection maps ...

  (x, y) ⇒ (x -y)

Then the rotation maps ...

  (x, -y) ⇒ (y, x)

That is, R(-1, 4) becomes R'(4, -1), apparently matching point S, the only point at (4, -1). We can't read the letters, but we know that you only need to know where R ends up in order to select the correct answer.

Simplify the following expression:
-9(14p - 8) - 4p

Answers

Step-by-step explanation:

-126p + 72 - 4p

-130p + 72

Lesley and Enid left their waitress a 15% tip.
The tip was $10.25.
What was their total bill, not including the tip?

Answers

Answer:   $68.37

Hope this helps;)

Answer:

Cost before tip: $68.34

Cost after tip: $78.59

Step-by-step explanation:

Please see attached image. Calculations are executed in black. Answers are highlighted in blue. Solution explanation is provided in red. Implicit/'skip-over' steps are in green.

~~

Hope this helps.

I’m not sure if i am correct with my answer. Can Someone help or confirm which answer it is or if i’m correct or not? :)

Answers

Answer:

First Option.

Step-by-step explanation:

5(5t-2) = -35

show how to solve the given equation ​

Answers

distribute the 5
25t-10=-35
+10 +10
25t =-25
divide by 25 on both sides
t=-1

through: (-3, 2), parallel to y = -

4
5
x + 1

Answers

Answer:

[tex]y=\frac{-4}{5}x-\frac{2}{5}[/tex]

Step-by-step explanation:

passes through (-3,2), parallel to y=-4/5x + 1

[tex]y-y_{1} =m(x-x_{1} )\\y-2 =\frac{-4}{5} (x+3)\\y-2=\frac{-4}{5}x-\frac{12}{5}\\y=\frac{-4}{5}x-\frac{2}{5}[/tex]

This has no answer choices

Answers

Answer:

I think x eaquals 130

Step-by-step explanation:

Because if you add 50 to 130 you get 180 a a straight line is 180 hope this helps

factorise k^2 + 5k + 6​

Answers

Answer: (k+2) (k+3)

Step-by-step explanation:

Factor 5^2 +5k+6 using the AC method.

help me please :(((((

Answers

Answer:

4 4 4

4

4

Step-by-step explanation:

it is all the same number, im being 4 real

3-(2)/(9)b=(1)/(3)b-7

Answers

Answer:

b=18

Step-by-step explanation:

HELP What is an equation for the parallel to y= 3x-1 that passes through (-9,-2)

Answers

Answer:

The line parallel to this equation would be y=3x+25

Step-by-step explanation:

A parallel line has the same slope but a different y-intercept (so just ignore the "-1" in the equation )  Our goal is to find the y-intercept ("b")

We will start with  

y=3x+b, plug in (-9,-2) for the x and y

-2=3(-9)+b

-2=-27+b,    add 27 to both sides

-2+27=-27+27+b    (the 27's on the right side cancel side)

b=25

our new equation is y=3x+25

What is the equation in standards form of the line y=1/9x+5

Answers

x - 9y = -45 i’m not sure what line ? but this is in standard form

Daniela and Jack are hiking a steady incline. They use their GPS device to determine their elevation every 15 minutes. At 15 minutes and 30 minutes they were at elevations of 10,300 and 10,900 feet, respectively. Write an equation expressing their elevation in relation to time.

Answers

Answer:

[tex]h=40t+9700[/tex]

where the elevation, h, is in feet and time, t, is in minutes.

Step-by-step explanation:

At the time, [tex]t_1=15[/tex] min, the elevation, [tex]h_1= 10,300[/tex] feet and

at the time [tex]t_2= 30[/tex] min, the elevation, [tex]h_2=10,900[/tex] feet.

As they are hiking a steady incline, so the change in the elevation with respect to time will be constant.

So, there will be a linear relationship between the elevation and the time.

Let [tex]h[/tex] be the elevation at any time instant [tex]t[/tex], so the linear relation among these quantities is

[tex]h=mt+C_0\;\cdots(i)[/tex]

where [tex]m[/tex] is the rate of change of elevation with respect to time and [tex]C_0[/tex] is constant.

The change in the elevation, [tex]\Delta h=h_2-h_1= 10,900-10,300=600[/tex] feet.

and the change in time, [tex]\Delta t=t_2-1_1=30-15=15[/tex] min.

So, change in the elevation in unit time,

[tex]m=\frac{\Delat h}{\Delta t}=\frac{600}{15}=40[/tex] feet/min.

Now, from equation (i)

[tex]h=40t+C_0[/tex]

As the elevation, [tex]h=h_1[/tex] at time [tex]t=t_1[/tex], so

[tex]10,300=40\times15+C_0[/tex]

[tex]\Rightarrow C_0=9700[/tex]

Hence, the required equation is

[tex]h=40t+9700[/tex]

where the elevation, [tex]h[/tex], is in feet and time, [tex]t[/tex], is in minutes.

100
Ave. High
Ave. Low
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Using the bar graph from above to answer the following questions:

a) What is the average monthly low temperature for Bogusville?


F


b) What is the average monthly high temperature for Bogusville?


F


c) What is the average monthly high temperature for Bogusville during the fourth quarter of the year?


F


d) What is the average monthly low temperature for Bogusville during the fourth quarter of the year?

Answers

this is the most easier question anyone has asked yet. kill me

some number is added to itself the result is multiplied by eight is four what is that number​

Answers

Answer:

X=1/4

Step-by-step explanation:

(x+x)*8=4

(2x)*8=4

16x=4

X=4/16=1/4

Answer:

0.25

Step-by-step explanation:

First...

Assume that the number is x and make an equation.

(x + x) 8 = 4

Next...

Add.

(2x) 8 = 4

After that...

Divide.

2x = 4/8 so 2x = 1/2

Finally...

Divide more

x = 1/4 or 0.25

So your answer is 0.25.

I did double-check.

Someone please help me with these I’m stuckkkkkkkkkk!!! It’s Due in less than 5 minutes ofmymgmtmtmrmfndnka

Answers

Answer:i can help with the first 3 #1 = 6, #2 = 13, and #3 = 7

Step-by-step explanation:

Answer:

A:5.91607978

b:13.0384048

c:2.11660105

I don't know D e or f(I dont know how to solve those......)

Step-by-step explanation:

A car manufacturer advertises that its new car model goes from 0 to 80 miles per hour
in 5 seconds based on a test drive. During the first 5 seconds of the test drive, was
the car's speed ever exactly 45 miles per hour?

Answers

Answer: dang you live in moco too

Step-by-step explanation:

what is 2 to the power of 2 multiply 5​

Answers

Answer: 20

1) simplify 2^2 to 4

4*5

2) simplify

20

This is due in ten mins help plz

Answers

3? I think is the answer for this
I’m pretty sure it’s three as well

Whats would be the closest answer to this question

Answers

Answer:

KM

JK

PK

MJ

i hope this helps

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