What is twice 2 to the 30 power? Write in exponents. Explain your reasoning

Answers

Answer 1
Twice 2 to the 30-th power is
2*2³⁰ = 2¹*2³⁰ = 2³¹

For very large numbers, it is the usual practice to use scientific notation.
From the calculator, obtain
2³¹ = 2.1475 x 10⁹

Answer:  2.1475 x 10⁹

Related Questions

Which of the fractions shown has the greatest value?

2/4

4/7

1/3

4/9

Answers

4/7 has the greatest value; it is .57
1/2= .5
1/3=.33
4/9 = .44

Answer:

4/7 has the greatest value; it is .57

Step-by-step explanation:

The scores of several classmates on a language arts test are shown below: 86 points 87 points 87 points 94 points 95 points 82 points 78 points 89 points 80 points 84 points What is the median score for these students?

Answers

78,80,82,84,86,87,87,89,94,95
86+87/2 = 86.5

Answer:

78,80,82,84,86,87,87,89,94,95

86+87/2 = 86.5

Step-by-step explanation:

jenny borrowed $500 for 5 years at 4% interest compounded annually. what is the total amount she will have paid when she pays off the loan?

Answers

Use the formula for compound interest,  
  
[tex]A=P(1+ \frac{r}{n})^{nt} [/tex]  
  
Where P is the starting amount (500$), r is the rate of interest (0.04), n is the number of times the interest is compounded per unit (1 per year), and t is the amount of time it is compounded (5 years).  
  
Now, plug it into the formula:  
  
[tex]A=500(1+ \frac{0.04}{1})^{5}[/tex]  
  
Do the math, and your answer is she must pay 608.32$ when she pays her debts.


9.Jessa drew a circle with a circumference of 18.84 inches. Which of these dimensions could be the diameter, in inches Jessa used to draw her circle? Use 3.14 for pi.

A 6
B 15.7
C 3
D 9.42

Answers

A. 6

The circumference can be found just by multiplying the diameter by pi.

So all you need to do is 18.84/3.14 which is 6.

Answer:

A. 6

Step-by-step explanation:

Write the formula c = 2πr. Substitute the value 18.84 feet for c. Solve the equation for c. Since the radius always measures one-half the length of the diameter, multiply the value of c by 2.

Gavin agrees to buy a 6-month package deal of monthly gym passes and in turn receives a 15% discount. Write an algebraic expression to represent the total cost of the monthly passes with the discount, if x represents the cost of each monthly pass.

Answers

6*x=y
15%*y=Z
that is the equations

A machine factory produces 2 parts per second. One shift is 10 hours long. What is the production rate in parts per shift?

Answers

60 seconds per minute

 2 x 60 = 120 parts per minute

60 minutes per hour

120*60 = 7200 parts per hour

7200 x 10 hours = 72,000 parts per 10 hour shift

Sales of a new tablet grow by 10% every month. Sales for this month are at 5 thousand. Write an equation to represent this situation and then approximate the sales 6 months from now.

Answers

We start with the sale at $5,000. The growth is: p = 10% = 0.1; r = 1 + 0.1 = 1.1
The equation is:
f ( t ) = 5,000 * ( 1.1 )^t
where t it the time in months.
f ( 6 ) = 5,000 * ( 1.1 )^6 =
= 5,000 * 1.77156 = $8,857.80
Answer: The sale 6 months from now will be $8,857.80.

whats the property in equation 3(2x-6)=6x-18

Answers

3(2x-6)=6x-18

Distributive property

hope it helps
distributive because the 3 is distributing itself in the 2x and the -6

A bag has 6 yellow marbles and 6 brown marbles. Half of the brown marbles are made of glass. A marble is selected at random from the bag. What is the probability that it is a brown, glass marble?

Write your answer as a fraction in simplest form.

Answers

total = 12 marbles
6 brown marbles but half of the brown marbles are made of glass
so brown and made of glass = 3
probability that it is a brown, glass marble = 3/12 = 1/4

answer
1/4

A gift box is a rectangular prism14inches long,5inches wide,and 4inches high.If the box is to be covered in fabric ,how much fabric is needed if there is no overlap?

Answers

that's the surface area

when he length=L
width=W
and height=H


SA=2(LW+WH+LH)
so
L=14
W=5
H=4

subsitute
SA=2((14)(5)+(5)(4)+(14)(4))
SA=2(70+20+56)
SA=2(146)
SA=292

you need 292 square inches of fabric

The total fabric needed would be 292 square inches.

To calculate how much fabric is needed to cover the gift box without overlap, we must find the surface area of the rectangular prism representing the box. The formula to find the surface area of a rectangular prism is 2lw + 2lh + 2wh, where l represents the length, w represents the width, and h represents the height.

Given the dimensions of the box are 14 inches (length), 5 inches (width), and 4 inches (height), we calculate the surface area as follows:

2 (14 × 5) = 2 × 70 = 140 square inches (for the top and bottom)2 (14 × 4) = 2 × 56 = 112 square inches (for the front and back)2 (5 × 4) = 2 × 20 = 40 square inches (for the left and right sides)

The total surface area is 140 + 112 + 40 = 292 square inches of fabric needed to cover the entire box.

Janet's Junk Shop is having its annual sale. Matt wants to buy a mixer that originally sold for $28.62 and is now on sale for off. Matt also has a coupon for an additional 15% off the discounted price.

How much will Matt pay for the mixer?

Answers

[tex]n\% \:\:off = (100 -n)\% \:\: of \:the\: original \:price[/tex]
[tex]FinalPrice =[/tex]
[tex](Original Price \times(\frac{100\% - Discount}{100\%}))\times(\frac{100\% - Discount_2}{100\%}) =[/tex]
[tex]\big(\$28.62\times(\frac{100\% - 25\%}{100\%})\big) \times(\frac{100\% - 15\%}{100\%}) = [/tex]
[tex]\big(\$28.62\times(\frac{3}{4})\big) \times(\frac{17}{20}) \approx \$18.25[/tex]

Matt will pay [tex]\$18.25[/tex] for the mixer

Solve x3 = 1 over 8.

Answers

x^3=1/8

x=(1/8)^(1/3)

x=1/2

Answer:

The simplified form of the provided equation is 1/2.

Step-by-step explanation:

Consider the provided equation.

[tex]x^3=\frac{1}{8}[/tex]

8 can be written as 2³

1 can be written as 1³

Therefore the provided equation can be written as:

[tex]x^3=\frac{1^3}{2^3}[/tex]

[tex]x^3=(\frac{1}{2})^3[/tex]

[tex]x=\frac{1}{2}[/tex]

Hence, the simplified form of the provided equation is 1/2.

Which undefined term is needed to define a circle

Answers

The undefined term 'point' is needed to define a circle

Answer:

the first one is "point" and the second is "1/2"

Step-by-step explanation:

The solution to the system of equation below is (−2, −1).

2x − 3y = −1
11x − 9y = −13

When the first equation is multiplied by −3, the sum of the two equations is equivalent to 5x = −10.

Which system of equations will also have a solution of (−2, −1)?


5x = −10
11x − 9y = −13


2x + 9y = −1
11x − 9y = −13


−6x + 9y = −1
11x − 9y = −13


−6x + 3y = −1
5x = −10

Answers

5x=-10
11x-9y=-13

5x(-2)=-10
11x(-2)-9x(-1)=-13

Answer:

The correct option is 1.

Step-by-step explanation:

If a system of equation have solution (a,b), then the equations of system must be satisfied by the point (a,b).

It is given that the system of have solution (-2,-1), so the equations of system  must be satisfied by the point (-2,-1).

The system of equation in option 1 is

[tex]5x=-10[/tex]

[tex]11x-9y=-13[/tex]

Put (-2,-1) in the above equations.

[tex]5(-2)=-10\Rightarrow -10=-10[/tex]

[tex]11(-2)-9(-1)=-13\Rightarrow -13=-13[/tex]

Since left hand side is equal to right hand side, therefore the point (-2,-1) satisfy the equations and (-2,-1) is the solution of the given system.

Similarly check the other system of equations, whether the point (-2,-1) stratify the equations or not.

In option 2,

[tex]2x+9y=-1[/tex]

[tex]2(-2)+9(-1)=-1\Rightarrow -13=-1[/tex]

Since left hand side is not equal to right hand side, therefore the point (-2,-1)  is not the solution of this system of equation.

In option 3,

[tex]-6x+9y=-1[/tex]

[tex]-6(-2)+9(-1)=-1\Rightarrow 3=-1[/tex]

Since left hand side is not equal to right hand side, therefore the point (-2,-1)  is not the solution of this system of equation.

In option 4,

[tex]-6x+3y=-1[/tex]

[tex]-6(-2)+3(-1)=-1\Rightarrow 9=-1[/tex]

Since left hand side is not equal to right hand side, therefore the point (-2,-1)  is not the solution of this system of equation.

Only option 1 is correct.

Ryan, Jessica, and Mark each solved this system of equations. All of their answers are different. Find and explain the mistakes. What is the correct answer?

y = 3x + 2
6x – 2y = 10

Ryan’s answer:
I solved by adding the equations. The solution is .

y = 3x + 2 → 3x + y = 2
6x – 2y = 10 → 3x – y = 5
6x = 7
x =

6x – 2y = 10 → 6 – 2y = 10

7 – 2y = 10
–2y = –3

y = -

Jesse’s answer:
I used matrices. The solution is .



Mark’s answer:
I graphed the equations. The lines are parallel and do not intersect, so there is no solution.

Answers

6x - 2y = 10
-2y = -6x + 10...reduce by dividing by -2
y = 3x - 5....slope = 3 and y int = -5

y = 3x + 2 ...slope = 3, y int = 2

These lines are parallel. Parallel lines will have the same slope, but different y int's. There is no solution to this because ur lines never intersect.

Mark's answer is correct

6x - 2y = 10

-2y = -6x + 10

reduce by dividing by -2

y = 3x - 5

slope = 3 and y int = -5

y = 3x + 2

slope = 3, y int = 2

These lines are parallel. Parallel lines will have the same slope, but different y integers. There is no solution to this because the lines never intersect.

Mark's answer is correct

Triangle XYZ is reflected across the line y=x and X'= (2, -15). What are the coordinates of X,?

Answers

if reflected coordinate is (2,-15) , it mean coordinates` x and y values are changed. So, if you want to know X, reflect once again! 
Answer: (-15,2)

Answer:

the answer to this is A

Step-by-step explanation:

A certain number is multiplied by 3, and then 5 is added to the result. The final answer is 41. What is the number

Answers

To solve this problem, first we need to subtract 5 from 41, which gives us 36.  Then we divide it by 3.  The answer is 13.  We used inverse operations to solve this problem.
You have to use inverse operations to solve this. The opposite of addiction is subtraction. So 41-5=36. The opposite of multiplication is division and 36/3 is 12. The number is 12.

How long is a football field

Answers

a football field is 360 feet 

the distance between goal lines is 100 yards, each end zone is 10 yards

 so total length of a football field is 120 yards

Sam bought 86 pounds of flour for his bakery. Every day he used the same amount of flour to make bakery items. After 10 days, Sam was left with 25.2 pounds of flour. On average, how many pounds of flour did Sam use each day?

Answers

86-25.2 = 60.8 pounds of flour used

60.8/10 = 6.08 pounds used per day

Answer:

6.08

Step-by-step explanation:

first, i subtracted 86 from 25.2 to get what he used in the 10 days, which was 60.8, then i would divide it by 10 bc of 10 days to get 6.08. Hope this helps!

1/2x =20

Pls help
I need answer in like a minute

Answers

if ya meant like [tex]\frac{1}{2}x=20[/tex]
multiply both sides by 2/1 to get x=40

if ya meant like [tex]\frac{1}{2x}=20[/tex]
multiply both sides by x and divide both sides by 20 to get [tex]x=\frac{1}{40}[/tex]

depends which one it is

What is the midpoint of the line segment with endpoints (1,6) and (-3,4)?

Answers

The midpoint of a segment with endpoints (1,6) and (-3,4) is (-1,5)
hope this helps:)
please mark thanks and brainliest:)
to find the midpoint add 1 and -3 and divide it by two. thats your answer for x-axis

add 6 and 4 and divide the answer by 2 and you will get the answer for y-axis.

therefore,
midpoint = ( (1 + -3) ÷ 2 , (6+4) ÷ 2 )
= ( -2 ÷ 2 , 10 ÷ 2 )
= (-1, 5)

How do you find the LCM???

I know that I asked how to find the LCM of 8 and 9 but I don't know what to multiply by to get it.

Answers

If you know the LCM then you divide it by the other number.
If you don't already know it: is 8 a factor of 9 or do they have equal factors? No.
Is 9 a factor of 8 or do they have equal factors? No.
The easy way: multiply 8 by 9 to get LCM :)

Plz help me with this math problem

Answers

Multiply each number bye 5

Why would experimental probability differ from theoretical probability?

Answers

Theoretical probability is what we expect to happen, where experimental probability is what actually happens when we try it out. 

Solve the equation ax + 1 = bx for 'x'. Please be sure to include all steps.

Answers

ax + 1 = bx for x

ax + 1 = bx
ax - bx = -1
x(a-b) = -1
x = -1 /(a-b)
ax + 1 = bx
1 = bx - ax <-- Subtract ax both each side
1 = x(b - a)
1/(b - a) = x <-- Divide both sides by b - a

So, x is equal to 1/(b - a).

A car company tested a sports car on a road with different inclines. The test driver tested the car by driving a distance of x miles on a flat road, (x2 + 3) miles downhill, and (x − 7) miles uphill. Which simplified expression is equivalent to the total distance, in miles, for which the car was tested?

Answers

The answer is x= -4 if that's what they asking for

C. x²+ 2x - 4 Should be your answer to this question.

Margie calculated that she would spend $175 on school supplies this year. She actually spent $97.50 on school supplies. What is Margie’s percent of error? 77.3% 79.5% 44.2% 4.4%

Answers

175 - 97.5 = 77.5

77.5  /  97.5 = 0.7948 = 79.5%

answer

79.5%

Margie’s percent of error is 79.5%.

First step is to calculate the amount that Margie was off by

Amount=$175 - $97.50

Amount=$77.5

Second step is to find Margie percent of error  

Percent of error=77.5 / 97.50× 100

Percent of error = 79.48717949%

Percent of error=79.5% (Approximately)

Inconclusion Margie’s percent of error is 79.5%.

Learn more here:

https://brainly.com/question/8390091

Write 0.8 repeating as a fraction

Answers

The answer is 8/9 i believe.

Answer: 8/9

Step-by-step explanation: I got the answer right

3(x+1)-[2(3-2x)-3(3-x)]

Answers

Distributive property
3x+3-2-3x+9
Combine like terms
0x+3-2+9
X=10

What is tan 45 degrees

Answers

Tan 45* = one

If this helps please give brainliest ;)

Answer:

tan 45°= 1

Step-by-step explanation:

you find the opposite/adjacent= 1

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