Provide an explanation and the calculations please.

1. Your best friend has never learned about scientific notation. Explain how to use scientific notation to rewrite very large numbers.

2. A friend says the average distance to the moon is 382,500 km. Is the number he wrote accurate? Explain.
“3.825 x 10^6”

3. An earthworm travels 0.0000425 miles per second. A friend writes the rate as 4.25 10^5 mps. Explain her error. Write the correct rate in scientific notation. B. How are the processes for multiplying and dividing numbers written in scientific notation alike and different?

Answers

Answer 1

Answer:

PLZ GIVE ME BRANLIEST =)))

1. A scientific notation is where you multiply any number by a power of 10 (negative or positive or neutral).

2. This is incorrect, because 3.825*10^6 is actually 3,825,000. The correct answer is 3.825*10^5.

3a) The power is supposed to be negative, since the number is decreasing, not increasing. It is 4.25*10^-5. 3b) The processes are alike in the way that they all have a number being multiplied by a power of 10. They are all different in the way that some numbers can be decimals, and some powers can be negative powers.

Related Questions

Provide answer. If y varies inversely as x^2, and x = 4 while y = 1/4, find x when y = 1.

Answers

The X would equal 16

PLZ HELP i am failing like i still did the work but i got it incorrect plz!!! i BEG of you to plz help me (Surface Area of Rectangular Prisms)

Answers

Answer:8 times 4+12+= 44

Step-by-step explanation:

8 times 4 gives you 32 then add 12 to get 44

(8x4)2=64
(8x12)2=192
64+192=256

256 would be your answer i believe. i think this is right but i havent done this in a while and i just now watched a video on it.

BRAINLIEST HERE
Look at the stem-and-leaf plot. What is the mean of the numbers?

A) 1.57

B) 19

C) 20

D) 22

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I’m pretty sure it 19 :-)

Answer: its either 4.3, line over the three, 6.5, or 13, im not very good at math.

I WILL GIVE BRAINLIEST

Answers

Answer: 34 mi 2

Step-by-step explanation:

so 11 x 8 = 88

and then

9 x 6 = 54

so subtract

88 - 54

and you get

Answer:

34 mi2

Step-by-step explanation: give credit to the answer obove he beat me to it

Pls help with a good explanation and show ur work will give brainleiest

Answers

From the graph: there are 200 students overall. For the next 100, we can divide each number by 2 to find an estimate for how many with participate in MATH tutoring. 40 divided by 2 =20 students participating in MATH tutoring.

Part B- There are currently 55 students out of 200 in SCIENCE tutoring. We add 55 more for 400 = 110, add 55 more for 600=165, and then add half of 55 (27.5 or 28 because you CANNOT have half a student) for 700 students total. 55+55+55+28=193 students.

i need the correct answers pls!!

Answers

a) function 1
b) function 3
c) none

A- function 1
B- function 3
C- function 2

What is the volume of a sphere with a radius of 3 meters?

Answers

Answer:

v=113.1 m^3

Step-by-step explanation:

v=4/3pi(r)^3

4/3pi(3)^3

v=113.09734m^3

Hi!
It’s 113.1m³
I hope this helps!!

A bus is traveling at a constant speed. If the bus trvaels 15 1/2 miles in 1/3 of an hour, how many miles will the bus travel in one hour?

Answers

Answer:

46.5

Step-by-step explanation:

convert 15 1/2 to 15.5

multiply it by 3 because it moves 15.5 milea every 1/3 of an hour

13.two quantities ,x and y, vary directly, if x=5 and y=20, find y when x=45.
14.two quantities ,x and y, vary directly, if x=8 and y=48, find y when x=32.

Answers

Answer: 13. 180, 14. 192

Step-by-step explanation:

13.

What is the relationship of 5 and 20?

4x5 is 20.

That means y is 4 times more than x.

So, if you apply this to x= 45, what is y?

45x4 =180

This can be used as a ratio

5:20

45: ?

To get 5 to 45, multiply by 9

That means you have to equal out the equation by multiply 20 by 9, = 180.

14.

8: 48

32: ?

8x4 is 32

48x4=192

y= 192

Can someone PLEASE explain to me how to find the rule of a function table. I understand how find the rule of easy function tables but not this one and a few more. WILL GIVE BRAINLIST!!!!!!!!!!!!!!!!!!!!! PLEASE HELP HELP

Answers

Answer:

y=2x-46

Step-by-step explanation:

Select any two coordinate points. I'm picking (1,-44) and (2, -42).

x1 and y1 are the first coordinates. x2 and y2 are the second coordinates. The formula for finding the slope of a linear fuction is (y2-y1)/(x2-x1). Substiute the numbers into this formula:

-42-(-44)/2-1

=-42+44/1

This is the slope. In y=mx+b, plug in your newly found slope. Next, to find the y-intercept, plug any pair of coordinate points into your incomplete formula y=2x+b. I'm going to use (1,-44) again.

-44=2(1)+b

-44=2+b

b=-46

Now, plug this into your formula, and you'll get y=2x-46.

SHow work pleaseeeeeeeee

Answers

Area of rectangle = 105 cm^2
15 * 7 = 105
Area of semicircle = 14.137
Area of circle is 3.14r^2
3.14(3)^2 = 28.27
It’s a semicircle so divide by 2
28.27/2 = 14.137
Finally subtract 105 by 14.137 which equals around 91

If you could explain to me how you get the answer, that will be great!

Answers

Answer: 130.4

Step-by-step explanation:

find the area of the rectangles

5(8)=40

4(8)=32

find the area of both of the triangles

formula: 2(bh÷2)

substitute: 2(4 x 4.6 ÷ 2)

solve

2(9.2)

18.4

add all of the areas

40+40+32+18.4=130.4

At Jack's garage sale, everything costs less than $15. Write an inequality to represent the cost of the items, where c represents the cost.

Answers

Answer:

c < 15

Step-by-step explanation:

c < $15.

Since everything at the garage sale is under $15 and the question doesn’t say anything about items costing exactly $15, the best answer choice would be c < $15. :)

The pop. of a city is 75000. It decreases 1.5% annually. Complete the exponential function that models the population after x years.

f(x)=75,000 (_____)^x

Answers

formula is f(x) - ab^x. so we would need to get b. we would have to change the percentage to a decimal. so shift it 2 times to the right. which is 0.015 = b. hope this helps :D

need this done really quick ill give brainliest

Answers

Answer:

top left

Step-by-step explanation:

sry if its wrong

please helppppp me no links please....

Answers

Answer: i believe its 5/3

Step-by-step explanation: hope this helps :)

What is the approximate area of this figure?

Answers

The area is 4 x 6.5 which is 26

4x6.5 and you and your answer is 26

Does one equal to zero?

Answers

Answer: 1 = 0

Step-by-step explanation:

The following is a “proof” that one equals zero.

Consider two non-zero numbers x and y such that

x = y.

Then x2 = xy.

Subtract the same thing from both sides:

x2 – y2 = xy – y2.

Dividing by (x-y), obtain

x + y = y.

Since x = y, we see that

2 y = y.

Thus 2 = 1, since we started with y nonzero.

Subtracting 1 from both sides,

Answer:

Yes, one does equal to zero

Step-by-step explanation:

Consider two non-zero numbers x and y such that

x = y.

Then x2 = xy.

Subtract the same thing from both sides:

x^2 – y^2= xy – y^2.

Dividing by (x-y), obtain

x + y = y.

Since x = y, we see that

2 y = y.

Thus 2 = 1, since we started with y nonzero.

Subtracting 1 from both sides,

1 = 0.

I am not good at explaining this type of question. so I copied and pasted the explanation part. I hope this helps

Will mark brainliest!

Answers

Answer: x is less then 5 over 4. Open circle on 1.25 shading to the left on the number line.

Step-by-step explanation:

Step 1: 16x is less than 20

step 2: divide by 16, 16x over 16 is less than 20 over 16.

step 3: x is less than 5 over four (1.25)

Find the distance between (-3, 7) and (-8, 5). Round to the nearest tenth if needed.

A. 5
B. 5.3
C.66
D. 5.4

Answers

The answer is D. 5.4

Distance:
_______________
= √[(-3)-(-8)]² + [(7)-(5)]²

= √(5)² + (2)²

= √25 + 4

= √29

= 5.38516.......

= 5.4 (nearest tenth)

Answer is d by one reason and I don’t think I’m right but yeah I’m pretty sure it’s d man

Its not 1/8. what is it?

Answers

Answer:

Well you got 9 different choices. Only 5 of them contains a burger OR a salad.

So its 5/9.

5/9 is the answer , i hope this helps <33

Select the sets of angles that could be the interior angle measures of a triangle.
85°, 43°, and 52°
90°, 37°, and 51°
37°, 65°, and 78°
120°, 12°, and 40°
162°, 2°, and 16°

Answers

Answer:

85 43 and 52

37, 65, and 78

162 2 and 16

Step-by-step explanation:

It should add up to 180 because the degree for a square is 360 and a triangle is half of it.

Answer:

85 43 and 52

37, 65, and 78

162 2 and 16

Step-by-step explanation:

Please help, this is due at 12am. If your also good at math, do you mind looking at my previous question. If not, that's ok, put at least look at the attachment to this question. Thank you.

Answers

The answer is c bro

The answer is C. I will see the other question

The box plot below shows the total amount of time, in minutes, the students of a class surf the Internet every day:

A box plot is shown. The left-most point on the plot is 20 and the right-most point is 95. The box is labeled 40 on the left edge and 60 on the right edge. A vertical line is drawn inside the rectangle at the point 50.

Part A: List two pieces of information that are provided by the graph and one piece of information that is not provided by the graph.

Part B: Calculate the interquartile range of the data, and explain in a sentence or two what it represents.

Part C: Explain what affect, if any, there will be if an outlier is present.

Answers

Part A: the upper quartile is 60 an the lower quartile is 40 and pi=3.14

Tell whether the angles are complementary or supplementary. Then find the value of x.

I don't know how to find the value of x T^T and If I see links your getting reported >:( I'm tired of them.

Answers

Answer:

The angles are complementary; X = 15

Step-by-step explanation:

When angles are complementary, they always add up to 90 degrees angles, which is a right angle. Supplementary angles add up to 180 degree angles, which is a straight line. When telling the difference, my math teacher taught me to remember the saying "complementing is always the right thing to do" (it's corny, I know, but it worked for me lol)

To find x, you would do 90 minus the other angle, which is 45, to get 45. Then, you would divide by 3, to get 15 as x.

The angles are complementary. The equation to find x would be 45=3x, which would get u 15. U do this because the little square means the whole angle equals 90°, or a right angle. And if u already have 45°, the other side has to be 45°.

make this into a slope-intersect form

x + 7y = -8

Answers

Answer:

Slope: -1

x-intercept: (-7, 0)

y-intercept: (0, -7)

Explanation:

−

Step-by-step explanation:

I DONT KNOW I JUST HAVE DONE THIS LOL

slope intercept form is y = mx + b.

the m represents slope and the b represents the y-intercept.

therefore, the answer to your problem would be: y = -1/7x - 8/7

Chloe wants to earn money at home to buy something at the store the easiest way possible. She could feed the dog for 30 dollars a week or she could ask her grandma for $48 and walk the dog for $22 dollars a week. She wants to know out of curiosity how many weeks would it take to earn the same amount of money for both tasks??

Answers

Answer:

It would take 6 weeks for her to earn the same amount of money for both tasks.

Step-by-step explanation:

We can use the equation 30x = 22x + 48 to help us answer this question.

x = # of weeks

($)30 x 6(weeks) = ($)180

($)22 x 6(weeks) + ($)48 = ($)180

so at 6 weeks, Chloe earns the same amount of money for both tasks.

If this doesn't make sense, let me know, and I'll explain it a bit more.

Hope this help you :)

Help me please, the question is in the picture! :))

Answers

You could use 30mm divided by 4

Answer: An equation that you can use is 4(7.5)

Step-by-step explanation:

Formula for perimeter is P=4a, so it would be P=4(7.5) which equals 30

I really hope this helps!

Can somebody help me with this? thank you

Answers

Answer:

i believe its d

Step-by-step explanation: brainliest

i think it’s D not for sure tho

too late peeops so yas....................lol................

Answers

djrjjdkdjgjrudjfdjejfjfjejdjviwkdnri

Answer:

Step-by-step explanation:

Uhuhhuuhh

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