Lainey read 15,700 words of her book on her family's road trip to the beach. Write the number of words that she read in scientific nototion.

Answers

Answer 1

Answer: 1.57 x 104

Step-by-step explanation: How to Convert a Number to Scientific Notation

The proper format for scientific notation is a x 10^b where a is a number or decimal number such that the absolute value of a is greater than or equal to one and less than ten or, 1 ≤ |a| < 10. b is the power of 10 required so that the scientific notation is mathematically equivalent to the original number.

Move the decimal point in your number until there is only one non-zero digit to the left of the decimal point. The resulting decimal number is a.

Count how many places you moved the decimal point. This number is b.

If you moved the decimal to the left b is positive.

If you moved the decimal to the right b is negative.

If you did not need to move the decimal b = 0.

Write your scientific notation number as a x 10^b and read it as "a times 10 to the power of b."

Remove trailing 0's only if they were originally to the left of the decimal point.


Related Questions

The graph represents the relationship between the cost of renting a trailer y for x hours,, please help

Answers

Answer:

The relationship is not proportion because the value of [tex]\frac{y}{x}[/tex] is not equivalent for each point in the relationship ⇒ C

Step-by-step explanation:

The relationship between x and y are proportional if [tex]\frac{y}{x}[/tex] = k, where k is a constantThe proportional relation represented graphically by a line passes through the origin point

Let us use the information, above to solve the question

→ From the given graph

∵ The coordinates of the points are (1, 10), (2, 20), (4, 25), (6, 40)

∵ The equation of proportion is [tex]\frac{y}{x}[/tex] = k

→ Let us check if all the points satisfy the equation or not

x = 1 and y = 10

∴ [tex]\frac{10}{1}[/tex] = k

10 = k

→ Check the other points if they give the same value of k or not

x = 2 and y = 20

∴ [tex]\frac{20}{2}[/tex] = k

10 = k

x = 4 and y = 25

∴ [tex]\frac{25}{4}[/tex] = k

[tex]\frac{25}{4}[/tex] = k

x = 6 and y = 40

∴ [tex]\frac{40}{6}[/tex] = k

[tex]\frac{20}{3}[/tex] = k

∵ Not all points satisfy the same value of k

∴ The relation does not represent a proportional relation

The relationship is not proportion because the value of [tex]\frac{y}{x}[/tex] is not equivalent for each point in the relationship.

What is the slope of a line parallel to the line whose equation is 5x+y=-9

Answers

Answer:

slope = - 5

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c (m is the slope and c the y- intercept )

Given

5x + y = - 9 ( subtract 5x from both sides )

y = - 5x - 9 ← in slope- intercept form

with slope m = - 5

Parallel lines have equal slopes, thus

The slope of a parallel line to the given equation is m = - 5

11. Ellen borrowed $110 from her brother. He is charging 10% interest per year.
How much interest will she owe him if she repays him after 3 months?

Answers

Answer:

$3.00

Step-by-step explanation:

Answer with step-by-step explanation:

3 months is 1/4 of a year. We need to multiply $110 by 1/4, which is $27.5

Hope this was helpful!

look at the picture please

Answers

Answer:

ok

this question ❓ is amazing....

14. See the image below:

Answers

Answer:

c

Step-by-step explanation:

Convert the flow rate of 250 gallons per minute (gpm) to a flow rate of gallons per second.

Answers

Answer:

multiply by

Convert from Convert to

US gpd US gpm cfm IMP gpd IMP gpm

m3/s 22800000 15852 2119 19000000 13200

m3/min 380000 264.2 35.32 316667 220

m3/h 6333.3 4.403 0.589 5277.8 3.67

liter/sec 22800 15.852 2.119 19000 13.20

liter/min 380 0.2642 0.0353 316.7 0.22

liter/h 6.33 0.0044 0.00059 5.28 0.0037

US gpd 1 0.000695 0.000093 0.833 0.000579

US gpm 1438.3 1 0.1337 1198.6 0.833

cfm 10760.3 7.48 1 8966.9 6.23

Imp gpd 1.2 0.00083 0.00011 1

Step-by-step explanation:

googled it

250 gal/min
1 min = 60 sec
250gal/60sec= 4.16 gal/sec

Bob can wash 58 cars in 4 days. Explain how you find the unit rate and give the meaning of the unit rate

Answers

Answer:

He can wash 14 cars in one day. 14:1

Step-by-step explanation:

You divide 58 by 4

Answer:

14.5 cars

Step-by-step explanation:

58 Cars

÷ 4

4 Days

÷ 4

=

14.5 Cars

1 Day

=

14.5 Cars

Day

= 14.5 Cars per Day

Use the end behavior of the graph to solve 3x^3+9x^2-12x<0

Answers

Answer:

STEP

1

:

Equation at the end of step 1

 ((3 • (x3)) -  32x2) -  12x  = 0

STEP

2

:

Equation at the end of step

2

:

 (3x3 -  32x2) -  12x  = 0

STEP

3

:

STEP

4

:

Pulling out like terms

4.1     Pull out like factors :

  3x3 - 9x2 - 12x  =   3x • (x2 - 3x - 4)

Trying to factor by splitting the middle term

4.2     Factoring  x2 - 3x - 4

The first term is,  x2  its coefficient is  1 .

The middle term is,  -3x  its coefficient is  -3 .

The last term, "the constant", is  -4

Step-1 : Multiply the coefficient of the first term by the constant   1 • -4 = -4

Step-2 : Find two factors of  -4  whose sum equals the coefficient of the middle term, which is   -3 .

     -4    +    1    =    -3    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -4  and  1

                    x2 - 4x + 1x - 4

Step-4 : Add up the first 2 terms, pulling out like factors :

                   x • (x-4)

             Add up the last 2 terms, pulling out common factors :

                    1 • (x-4)

Step-5 : Add up the four terms of step 4 :

                   (x+1)  •  (x-4)

            Which is the desired factorization

Equation at the end of step

4

:

 3x • (x + 1) • (x - 4)  = 0

STEP

5

:

Theory - Roots of a product

5.1    A product of several terms equals zero.

When a product of two or more terms equals zero, then at least one of the terms must be zero.

We shall now solve each term = 0 separately

In other words, we are going to solve as many equations as there are terms in the product

Any solution of term = 0 solves product = 0 as well.

Step-by-step explanation:

I hope this helps

Solve for the indicated variable.



A = LW, solve for W

Answers

Where’s the numbers to solve?

Match the following items.


Given:
bisectsRTS
R ≅S

Prove:


1. Segment TQ bisects ∠RTS; ∠R ≅ ∠S
2. ∠1 ≅ ∠2
3. Segment TQ ⊥ Segment RS
4. Triangle RTQ congruent to Triangle STQ
5. ∠3 ≅ ∠4
6. TQ ≅ TQ

a. Definition of perpendicular.
b. Given
c. AAS
d. CPCTE
e. Definition of angle bisector.
f. Reflexive

Answers

Answer:

1. Segment TQ bisects ∠RTS; ∠R ≅ ∠S             b. Given

2. ∠1 ≅ ∠2                                                            e. Definition of angle bisector

3. Segment TQ ⊥ Segment RS                          a. Definition of perpendicular

4. Triangle RTQ congruent to Triangle STQ     c. AAS

5. ∠3 ≅ ∠4                                                            d. CPCTE

6. TQ ≅ TQ                                                           f. Reflexive

Step-by-step explanation:

Good luck on the rest of your assignment!

Answer: Answer:

1. Segment TQ bisects ∠RTS; ∠R ≅ ∠S             b. Given

2. ∠1 ≅ ∠2                                                            e. Definition of angle bisector

3. Segment TQ ⊥ Segment RS                          a. Definition of perpendicular

4. Triangle RTQ congruent to Triangle STQ     c. AAS

5. ∠3 ≅ ∠4                                                            d. CPCTE

6. TQ ≅ TQ                                                           f. Reflexive

Step-by-step explanation:

Good luck on the rest of your assignment!

Write 0.000 027 in standard form?

Answers

answer: 0.000027= 2.7× 10 to the power of -5

John has 125 marbles. 35 are green; 40 are red; 20 are yellow and the rest are blue. What is the ratio of the blue marbles to all the marbles? *

40 to 30
6 to 25
25 to 6
35 to 125

Answers

Answer:

a

Step-by-step explanation:

HELP IT'S DUE IN 3 MINUTES!!!!!
1/4 hx= W

Answers

Answer:

Hx=4w

Step-by-step explanation:

HELP QUICK PLS WILL GIVE BRAINLIEST
A vine called the mile-a-minute weed is known for growing at a very fast rate. It can grow up to 0.5 ft per day. How fast in inches per hour can the mile-a-minute weed grow up to? Show your work using the correct conversion factors

Answers

Answer: 0.4 Inches

Step-by-step explanation:

Someone said it in the comments, give credit to them.

A car travels 42 miles each hour for 4 hours. Calculate the distance that the car traveled.

Answers

Answer:

168 miles total

Step-by-step explanation:

42 miles x 4 hours = 168

Answer:

168 miles in 4 hours

Step-by-step explanation:

42x4=168, meaning that in 4 hours, the car travels at a constant speed of 42mph and travels a total of 168 miles in 4 hours

Solve the equation for x 6x-18-3x<27-2x

Answers

Answer:

x<9

Step-by-step explanation:

What’s a reflection?????

Answers

Answer:

Reflection

Step-by-step explanation:

a reflection is a type of rigid transformation in which the pre-image is flipped across a line of reflection to create the image. Each point of the image is the same distance from the line as the pre-image is, just on the opposite side of the line.

ASAP ⚠️⚠️⚠️ what’s the output and how do I write the equation? ⚠️⚠️

Answers

Output is 135 and the equation is y = x(27)

Answer:

the output is 52 and the equation is y=5x+27

Find the tables with unit rates greater than the unit rate in the graph. Then arrange these tables in order from least to greatest unit rate,
70
65
60
55
50
45
40
35
30
25
20
15
10
5
3 4 5 6 7 8 9 10 11 12 13 14
X
y
y
X
y
х
x
y
y
7 13
5
Х y
9 17
18 34
10 19
13 25
11 21
22 42
12 23
24 46
14 26
10 18
20 38
26 50

Answers

Answer:

i don't under stand the question

Step-by-step explanation:

Answer:

i think it is x=11,22 y= 21,42, then x=10,20 y=19,28, then x= 9,18 y=17,34,then x=7,14 y=13,26, then x=5,10 y=9,18

Step-by-step explanation:

express 2.65 as a mixed number in the lowest terms

Answers

Answer:

2 13/20

Step-by-step explanation:

Answer:

2 13/20

Step-by-step explanation:

we can split up 2.65 into a whole number and a decimal

2.65

= 2 + 0.65      (note that 0.65 = 65/100)

= 2 + 65/100

= 2 65/100   (we can see that both numerator and denominator are multiples of 5, hence we can try to simply by dividing both numerator and denominator by 5)

= 2 (65÷5) / (100÷5)

= 2 13/20   (answer)

Which point is a solution to the inequality shown in this graph?


A (6,0)

B (5,-5)

C (0,-3)

D (0,-5)

Answers

Answer:

(0,-3)

Step-by-step explanation:

Apex

identify is this is percent increase or percent decrease, then calculate percentage


Last year the Chess club had 30 members. This year the club has 24 members.


Please help asap

Answers

Last year the chess club had 30 members. This year the club has 24 members.

Last year, the chess club had 30 members. This year, the club has 24 members. Since this year had less than last year ( 30 > 24), the percent will be decreasing.

To find the percent decrease, you have to use the following formula.

[tex]\frac{Difference}{Original} \times 100[/tex]

Difference refers to the difference between the two numbers, 24 and 30. The difference between 24 and 30 is 6. Original refers to the original number, which is last year's amount of members in the chess group. Therefore, original = 30.

Substitute the numbers into the formula.

[tex]\frac{Difference}{Original} =\frac{6}{30} =0.2[/tex]

To convert the decimal to a fraction, multiply the decimal by 100.

[tex]0.2 \times 100 = 20 \%[/tex]

The answer is the number of chess members decreased by 20%.

____

Since I started off by identifying whether it was decreasing or increasing, I did the work a bit differently. When finding the difference, you would usually subtract 30 from 24, which results in -6. Above I used 6, but if you used -6, you would end up with a result of -20%, which means it decreased by 20%. They bot end up with the same result, but you don't always have to first identify whether it's decreasing or increasing.

____

Answer:

Decreasing

Step-by-step explanation:

The percentages are decreasing because one year the club had 30 members and the present year has 24 members that decreased by 6!

Directions: Find each missing measure.
Q
P
R
Please help me find all 3 !

Answers

Answer:

m<P = 60 degrees

Step-by-step explanation:

All sides of the triangle are equivalent to each other.

All three sides of the triangle equal 180 degrees total.

Since there are 3 sides, we divide 180 by 3 to find the measurement for all sides

180 ÷ 3 = 60

Q = 60 degrees

P = 60 degrees

R = 60 degrees

Check your work by adding all three sides together to equal 180:

60 + 60 + 60 = 180

180 = 180

Work is correct

What is 6+6+2
need to actually ask something to give away points or the bots will report lol

Answers

Answer:

14

Step-by-step explanation:

because 6+6 is 12 and add 2 is 14

is it true or false?

Answers

Answer:

TRUE

Step-by-step explanation:

I totally need help, (I just wanna see who will join)
It works :)
kte-diym-hvy

Answers

Answer:

I’m joining rn does it still work?

Step-by-step explanation:

Do these side lengths make a triangle?

6, 10, 15

Answers

Answer:

No.

Step-by-step explanation:

They do not create a triangle because if you follow the expression: a^2+b^2=c^2 it does not equal. Hope I helped :)

Answer:

a^2 + b^2 = c^2  - Pythagorean Theorem

6^2 + 10^2 = 15^2

36 + 100 = 225

136 doesn't equal 225

So, no, the sides lengths don't make a triangle.

Sally is making a scale drawing of her apartment.
• She drew a line measuring 1 1/2 inches to represent the 12-foot width of her living room.
• The length of her living room is 18 feet.

How long a line should Sally draw to represent the length of her living room?

A. 2 inches
B. 2 1/4 inches
C. 2 1/2 inches
D. 3 inches ​

Answers

The answer is B
We know that 1 1/2 is 12 foot
So we divide it by 2 so we know every 6 feet how long is it so we will get 0.75 for each 6 feet.
Now we divide 18ft by 3. We will have three sixs
Now multiple 0.75 by 3 = 2.25 which means the answer is B
And I attached a photo down so that helps more.

Which of the following expressions is equivalent to x − 9 − 3x + 2y + 3 − 2?
A.
4x + 2y + 14

B.
3x + 2y + 1

C.
x − 9

D.
−2x + 2y − 8

Answers

Answer:

D.

−2x + 2y − 8

Step-by-step explanation:

x − 9 − 3x + 2y + 3 − 2 ( collect like terms)

-2x + 2y - 8

x - 3x = -2x

2y = 2y

-9 + 3 - 2 = -8

Sam invested a total of $25,000. His first earned 5%
interest and the other earned 6% interest. If Sam earned $1280
interest in one year, how much did he invest in each investment?

Answers

Do 25,000 divided by 5
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