I need help please .

Answers

Answer 1

Scientific notation is built upon the idea of moving the decimal place to the left or right so many places.

A foundational background concept is that multiplying by 10 makes a number bigger and moves the decimal to the right.
For example: 3.4 x 10 = 34

The counterpart for that is that dividing by 10 makes a number smaller and moves the decimal to the left.
For example: 3.4 ÷ 10 = 0.34

So, when you see 3.4 x 10^5, this means you’re multiplying by 10 fives times, so that will move the decimal point five places to the right.
3.4 x 10^5 = 340 000

On the other hand, when you see a negative exponent on the 10, then that means you’re actually dividing by that many 10s and will move the decimal point that many places to the left. (to make the number smaller)
3.4 x 10^-5 = 0.000034

So, you need to first identify if you’ll make the number bigger or smaller and then how many places the decimal point will need to move.

Related Questions

What is the word form for 43.22

Answers

forty-three and twenty-two hundredths

Ray SP bisects mZRST.
If m RSP = 3X – 2 and m PST = 9x -26
Answer: Find : mZRST

Answers

Answer:

RST = 20

Step-by-step explanation:

a ray that divides an angle into two equal angles is called an angle bisector.

So RSP = PST

3 x -2 = 9x - 26

6x = 24

x = 4

RST = 3x -2 + 9x -26 = 20

I need the steps please

Answers

Answer:

Step-by-step explanation:

First, plug in -2 into each y:

3(-2)^2-4(-2)

Simplify 2^2 to 4:

3x4-4x-2

Simplify 3x4 to 12:

12-4x2

Simplify 4 x -2 to get -8:

12-(-8)

Remove parentheses:

12+8

What is 4 2/3 + 1/6?

Answers

I hope this is the right equation. Hope this helps. <3

Answer: 4 2/3 + 1/6 = 4 5/6

Step-by-step explanation:

4 2/3 + 1/6

Add whole numbers 4+0: 4

Combine fractions 2/3 + 1/6: 5/6

= 4 + 5/6 = 4 5/6

Pls help I’ll give u 38points, I need this in 1 hour

Answers

the answer is 8, -1

the picture attached is the steps

Give a reason why the number 0.393993999399993999993… is irrational

Answers

Answer:

Its Irrational because it does not repeat or terrminate.

Step-by-step explanation:

Rational numbers end, and this one does not not. It also is not a patteren so it dont repeat.

One health club charges $44 sign fee and $30 per month. Another health club charges $99 sign up fee and $25 per month. For what number of months is the cost same. (Please give the equation and the answer for credit.)

Answers

Answer:

At 11 months, the costs for each club will be the same.

Equation: 44 + 30x = 99 + 25x

Step-by-step explanation:

Form equations to solve for each health club:

Variable x = number of months

1st health club: 44 + 30x

2nd health club: 99 + 25x

Equal the equations to each other:

44 + 30x = 99 + 25x

30x = 55 + 25x

5x = 55

x = 11

Answer:

x=11

Step-by-step explanation:

44+30x=99+25x

-25x -25x

44 +5x = 99

-44 -44

5x=55

5 5

x=11

I hope this helps!

Given AB with A(3,-1) and B(8, 14), if p lies on AB such that the ratio of AP to PB is 2:3, find the coordinates of P.

Answers

The coordinate point P is at (6, 8) given AB with A(3,-1) and B(8, 14), if p lies on AB such that the ratio of AP to PB is 2:3 is (6, 8)

Midpoint is the point that divides a line into two equal parts.

The formula for calculating the midpoint of a line divided within the ratio a:b is expressed as:

[tex]M(X, Y)=(\frac{ax_1+bx_2}{a+b}, \frac{ay_1+by_2}{a+b} )[/tex]

Given the coordinate point A(3,-1) and B(8, 14) and the ratio 2:3

Get the X coordinate of point P

[tex]X = \frac{2(3)+3(8)}{2+3}\\X=\frac{6+24}{5} \\X = \frac{30}{5}\\X=6[/tex]

Get the Y coordinate of point P

[tex]Y = \frac{2(-1)+3(14)}{2+3}\\Y=\frac{-2+42}{5} \\Y = \frac{40}{5}\\Y=8[/tex]

hence the coordinate point P is at (6, 8)

Learn more here: https://brainly.com/question/13989426

g(n)=n^3+n
g(-3)
help!

Answers

The question is simply asking you to evaluate the function for an input value of -3. Meaning we plug in -3 for all cases of n. (-3)^3 + (-3). This gives us -27 -3 which is -30. So g(-3)= -30

does anyone know i really need help please??? :)

Answers

The answer is the first one, -12

PLEASE HELP !!!!!!!!!!!!!!!!!!! I REWARD BRAINLIEST

Answers

Answer:

................

x=23°

x=14°

[tex]\\ \sf\longmapsto x+4x+65=180[/tex]

[tex]\\ \sf\longmapsto 5x+65=180[/tex]

[tex]\\ \sf\longmapsto 5x=180-65[/tex]

[tex]\\ \sf\longmapsto 5x=115[/tex]

[tex]\\ \sf\longmapsto x=\dfrac{115}{5}[/tex]

[tex]\\ \sf\longmapsto x=23[/tex]

[tex]\\ \sf\longmapsto 6x+2x+124=180[/tex]

[tex]\\ \sf\longmapsto 8x+124=180[/tex]

[tex]\\ \sf\longmapsto 8x=180-124[/tex]

[tex]\\ \sf\longmapsto 8x=56[/tex]

[tex]\\ \sf\longmapsto x=\dfrac{56}{8}[/tex]

[tex]\\ \sf\longmapsto x=7[/tex]

What is the slope of the line passing through the points (2, 4) and (5, 6)?

Answers

Answer:

C. 2/3

Step-by-step explanation:

To find the slope of a line from two points, use this formula.

[tex]m=\frac{y^2-y^1}{x^2-x^1}[/tex]

The variable 'm' means slope in algebra.

y² means the second y-coordinate and y^1 means the first y-coordinate.

Based on the previous definition, it should be easy to figure out what x² and x^1 mean.

[tex](2,4),(5,6)[/tex]

[tex]m=\frac{6-4}{5-2} =\frac{2}{3}[/tex]

Therefore, the slope of the line passing through the points (2,4) and (5,6) is 2/3.

Let me know if you have any questions.

Which equation can be used to solve for x in the following diagram

Answers

Answer:

C. (3x + 12) + x = 180

Step-by-step explanation:

[tex](3x + 12) \degree + x \degree = 180 \degree \\ \{angles \: on \: straight \: line \} [/tex]

group like terms together:

[tex](3x + x) + 12 = 180 \\ 4x = 180 - 12 \\ 4x = 168 \\ x = 42[/tex]

equation C would be your answer.

(3x + 12) and x represent 180 combined.

so (3x + 12) + x = 180, combine your like terms which is your x, x + 3x = 4x

4x + 12 = 180 (subtract 12 on both sides)
-12 -12
————————
4x = 168 (divide 4 on both sides)
—- ——
4 4

x = 42

to check your answer you replace the x with 42 and you should get 180 as your answer

(3x+12) = 180
3(42)+12 = 180
126 + 12 = 138

x = 42

138 + 42 = 180

I NEED HELP ASAP ON 1. AND 3.

Answers

Answer:

Step-by-step explanation:

3) Yes. Ms. Bratlett is correct.

2x - 3 - (x +1) = 2x - 3 + x*(-1) + 1*(-1)

= 2x - 3 - x - 1

= 2x -x - 3 - 1

= x - 4

Solve the equation, justifying each step.
-4 (2x – 5) = -4x – 20

Answers

Step-by-step explanation:

everything can be found in the picture

a^2 + b^2=c^2 solve for b

Answers

[tex]\large \mathfrak{Solution : }[/tex]

let's solve for b :

[tex] {a}^{2} + {b}^{2} = {c}^{2} [/tex]

[tex] {b}^{2} = {c}^{2} - {a}^{2} [/tex]

[tex]b = \sqrt{ {c}^{2} - {a}^{2} } [/tex]

Pls help ASAP I need it in 10 mins

Answers

Answer:

I could only figure out that the range is the 2nd to last one. Sorry. Hope you get it right!

Step-by-step explanation:

SImplify the expression below:

Answers

Answer:

8x^2 +10x -5

Step-by-step explanation:

you'll multiply the second expression by -1, and you'll get +8x-9, add both expressions together and your final answer will be 8x^2 +10x -5

please help!!!!

Name the shaded region

Answers

Answer:

B union C

Step-by-step explanation:

Hope it will help you

HELP ASAP ?!?!?!??!!!

Answers

Answer:

B: $1,344

Step-by-step explanation:

Okay simple we know that it is guaranteed to be at least $1,200. So A. Isn't an option. So it's 4% over three years. So that makes a total of 12%. 12% of 1,200 is 144. But as I said it isn't A. so now one step is left...

$1,200+$144=$1,344

Vanessa has $60 to spend on rides at the state fair. Each ride cost $4

Answers

She can ride 15 rides because 60/4=15

Im so confused please help with 5 and 6

Answers

Answer:

5)102,78

6)56,56

See THE IMAGE FOR SOLUTION

Answer:

78° and 65°

Step-by-step explanation:

(5)

The 2 angles lie on a straight line and sum to 180° , that is

x + 84 + x + 108 = 180

2x + 192 = 180 ( subtract 192 from both sides )

2x = - 12 ( divide both sides by 2 )

x = - 6

Then

x + 84 = - 6 + 84 = 78°

(6)

the angle opposite 8x is 9x - 7 ( corresponding to the 9x - 7 )

So 8x and 9x - 7are vertical angles and congruent

9x - 7 = 8x ( subtract 8x from both sides )

x - 7 = 0 ( add 7 to both sides )

x = 7

Then

9x - 7 = 9(7) - 7 = 63 - 7 = 56°

PLease send explanation.

Answers

Answer:

Step-by-step explanation:

XY = 1/2 * QR (According to the midpoint theorem)

=1/2 * 15.6

=15.6/2

=7.8 m

XY=QR/2=15,6/2=7,8 i think so

Select the choice that translates the following verbal phrase correctly to algebra:

the difference of m and 7 increased by 15

Options:

m − (7 + 15)

7m + 15

(m − 7) + 15

m − 7 ÷ 15

Answers

Answer:

(m - 7) + 15

Step-by-step explanation:

A difference is the result of a subtraction, so the difference of m and 7 is

m - 7

An increase is obtained by addition, so to increase the difference by 15, add 15 to the difference.

(m - 7) + 15

2 × (-3)2 − 5 × (-3) × (-2) − (-2)3

Answers

Answer:

Step-by-step explanation:

2 x (-3)2 - 5 x (-3) x (-2) - (-2)3

2 x -6 - 5 x -6 + 6

-12 + 30 + 6

twenty four is the answer

Order the number from least to greatest 7,2, square root 8/2

Answers

The order is... √8/2, 2, 7

Step-by-step explanation:

The √(8/2) is equal to 2 if you meant that then the order is 2, 2, 7.

If not then the square root of 8 is approximately 2.82842712475 so divide that by 2 and you get

1.41421356237.

A new car is priced at ₱2 000 000, and its value depreciates by 5% at the end of each year. What is the price of the car after 5 years?

Answers

The price of the car after 5 years will be ₱1,500,000

Price of car = ₱2 000 000

Depreciation percentage = 5%

Depreciation = 5% × ₱2 000 000 = 0.05 × ₱2 000 000 = ₱100 000

The equation to solve the question will be:

= 2000000 - 100000x

where, x = number of years

= 2,000,000 - 100000(5)

= 2,000,000 - 500,000

= ₱1 500 000

The price of the car after 5 years will be ₱1,500,000

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https://brainly.com/question/24567634

Point K is between points J and L. If JK=x2−4x, KL=3x−2, and JL=28, find JK and KL.

Answers

Answer:

Step-by-step explanation:

JK + KL = JL

x² - 4x +3x - 2 = 28

x² - x - 2 = 28

x² - x -2 - 28 = 0

x² - x - 30 = 0

Sum = -1

Product = -30

Factors = -6 , 5 {-6 + 5 = -1 and (-6)*5 = -30}

x² + 5x - 6x - 30 = 0 {Rewrite the middle term}

x(x + 5) - 6(x + 5) = 0

(x + 5)(x - 6)= 0

x -6 = 0 {X +5 = 0 is ignored as measurement will not be negative}

x = 6

JK = x² - 4x

= 6² - 4*6

= 36 - 24

JK = 12

KL = 3x -2

= 3*6 - 2

= 18 - 2

KL = 16

can someone help me answer a few of these? Thank you! :)

Answers

I’m going to try to answer these to the best of my ability.

1. Plane D
2. Plane C
3. AB
4. No
5. I don’t believe so because it doesn’t look like C is on the same plane as a AB and D.
6. I think so, yes! Collinear means that they are on the same line, and it looks like if you put a line between those two to connect them, they would connect perfectly!
7. B possibly? Because it looks like B, C, and D are all collinear and that they would pass through a straight line. A doesn’t look like it’s collinear with the rest of them.
8. No
9. Yes
10. Yes

I’m sorry if any of those are wrong, but I did make sure to try and put some explanations for some of them so you saw why I gave the answer that I gave! I hope that helped and like I said, I’m sorry if any of them are wrong, I tried my best!

Katha has 5 c. flour. Each cake
requires 1 cups. How many cakes can
she make?

Answers

katha can make 5 cakes if she has 5 cups of flower and each cake is 1 cup of flower she can make 5 cakes

She can make 5 cakes

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