How do you write 84 in scientific notation?

Answers

Answer 1

Answer:

8.4 x 10

Step-by-step explanation:

Scientific notation

Answer 2

Answer:

8.4 x 10^1

You do not have to use the 1st power that is just the official way of writing it  :)

Step-by-step explanation:

scientific notations


Related Questions

PLEASEEE I CAN'T DO ITT

Answers

Answer:

answer is cm² ok

Step-by-step explanation:

because it is saying area ,in area we have to put cm2

What is the greatest possible integer solution of the inequality 3.7x<12.3

Answers

Answer:

3 is the answer.

Step-by-step explanation:

You will have to divide both sides by 3.7, and you will get x<3.3. But because 3 is lesser than 3.3, it is the largest possible integer that satisfies the inequality.

Hey there!


EQUATION:

3.7x < 12.3

DIVIDE 3.7 to BOTH SIDES:

3.7x/3.7 < 12.3/3.7

SIMPLIFY IT!

x < 12.3/3.7

ANSWER:

x < 3.324324


Therefore, your answer is:

x < 3.324324


Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Which of the following is equal to the rational expression when x≠1 or -1 5(x-1)/(x+2)(x-1)

Answers

The solution to the given expression will be [tex]\dfrac{-15}{x+2}[/tex]

What is an expression?

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.

The solution will be:-

[tex]= \dfrac{-15(x-1)}{(x+2)(x-1)}[/tex]

[tex]=\dfrac{-15}{x+2}[/tex]

Therefore the solution to the given expression will be [tex]\dfrac{-15}{x+2}[/tex]

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Dolores is going to make a sandwich. She has 2 types of bread, 3 types of cheese, and 2 types of meat to choose from. How many different sandwiches can she make that have 1 bread, 1 cheese, and 1 meat?

Answers

Twelve hours later then we went to sleep and then woke me back at my house after my birthday and I got invited

Choose the letter of the equation for
the graph.
a. y = sin x + 2
b.y = cos x + 2
c. y = cos(x - 1)
d. y = sin(x - 1)
e. y = sin(x + "/2)

Answers

Using translation concepts, it is found that the equation represented on the graph is of:

d. [tex]y = \sin{(x - \pi)}[/tex]

What is a translation?

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.

In this problem, we have a trigonometric function, with amplitude of 1, hence there was no vertical translation, which removes options a and b.

The function is of zero at the origin, 1 at [tex]\frac{\pi}{2}[/tex] and -1 at [tex]\frac{\pi}{2}[/tex]. The sine function is of 0 at [tex]-\pi[/tex], of -1 at [tex]-\frac{\pi}{2}[/tex] and of 1 at [tex]-\frac{3\pi}{2}[/tex], hence option d is correct.

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Convert 20341 base 5 into decimal system (also verify )

Answers

[tex](20341)_5\\\\=(2 \times 5^4 + 0 \times 5^3 + 3 \times 5^2 +4 \times 5^1 +1\times 5^0)_{10}\\\\=(2 \times 625+0+3 \times 25 +20 +1)_{10}\\\\=(1250+75+21)_{10}\\\\=(1346)_{10}[/tex]

Which inequality represents all values of x for which the quotient below is defined? Square root 7x2 divide by square root 3x

Answers

Inequalities help us to compare two unequal expressions. The correct option is D.

What are inequalities?

Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed. It is mostly denoted by the symbol <, >, ≤, and ≥.

The given expression can be solved as,

[tex]\dfrac{\sqrt{7x^2}}{\sqrt{3x}}\\\\= \dfrac{\sqrt{7}x}{\sqrt{3x}}\\\\= \sqrt{\dfrac{7x}{3}}[/tex]

Since the value of (7x/3) is needed to be positive, therefore, the inequality that represents all the values of x for the quotient is defined as x>1.

Hence, the correct option is D.

The complete question is mentioned in the below question.

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Answer: x>0

Step-by-step explanation:

QPR=7x-9
RPS=4x+22
Find QPR

Answers

Answer:
QPR = 40
x = 7

Explanation: You would want to combine both the angles and equal them to 90 because they’re perpendicular to each other.

There are 14 animals in the barn. Some are geese and some are sheep. There are 48 legs in all.
How many of each animal are there?

Answers

Answer:

24

Step-by-step explanation:

48÷2 (because every birds has 2 legs(

Simplify the expression

Answers

Answer:

-1

Step-by-step explanation:

Use the Pythagorean Identity:

1 + tan^2(x)= sec^2(x)

Rearrange it. Substitute. Simplify.See image. It's been done two ways on the image. You don't need both. But they both use the process above. See image.

Which of these daily activities helps build a stronger body?
riding in the car to school
doing homework at your desk
watching TV on the couch
riding a bicycle to and from school each day

Answers

Answer:

riding a bicycle to and from school each day

Step-by-step explanation:

As this involves the constant application of force from the leg muscles, this will help to build a stronger body.

Answer: Riding a bicycle to and from school each day

Step-by-step explanation: Evey other action is to do with your mind.

Serena is taking 4 friends on a trip with her to Louisiana for spring break. They take two cars to the airport where Serena pays $7.00 per car to park. Serena is charged a total of $2114.00 for tickets and parking. She pays the same price for each plane ticket. Using an equation to help you solve, what was the price of each person’s ticket?

Answers

Answer:

$420

Step-by-step explanation:

number of people = 5 (4 friends + serena)

number of cars = 2

cost of parking = 7 for each car = 7 * number of cars = 7 * 2 = 14

let t be the cost of each ticket

cost of tickets = t for each person = t * 5

total cost = cost of parking + cost of tickets

= 14 + t * 5

= 2114

2114 = 14 + 5t

subtract 14 from both sides to isolate the variable and its coefficient

2100 = 5t

divide both sides by 5 to isolate t

t = 2100/5 = 420

A 5-pound sack of potatoes is supposed to weigh 5
pounds. However, actual weights of the sacks vary
somewhat. An inspector selects a random sample of 50
sacks of potatoes from the large packaging plant and
weighs them
The inspector will calculate the sample mean and use
that to determine if there is convincing evidence that the
true mean weight of all sacks of potatoes differs from 5
pounds.

Answers

Answer:

t test for one mean.

met

met

met

Step-by-step explanation:

Harper leans a 24-foot ladder against a wall so that it forms an angle of 69


with the ground. What’s the horizontal distance between the base of the ladder and the wall? Round your answer to the nearest tenth of a foot if necessary

Answers

The horizontal distance between the base of the ladder and the wall is 67.0 feet.

What is distance?

distance is the length between two points.

To calculate the horizontal distance between the ladder and the wall, we use the formula below.

Formula:

cos∅ = adjacent(y)/hypotenous(h)

Make y the subject of the equation

h = y/cos∅........ Equation 2

Where:

∅ = Angle between the wall and the laddery =  horizontal distance between the base of the ladder and the wallh = Lenght of the ladder lean against the wall

From the question,

Given:

y = 24 foot∅ = 69°

Substitute these values into equation 2

y = 24/(cos69°)y = 24/0.358y = 67.0 feet.

Hence, The horizontal distance between the base of the ladder and the wall is 67.0 feet.

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Harper leans a 24-foot ladder against a wall so that it forms an angle of 69

with the ground. What’s the horizontal distance between the base of the ladder and the wall? Round your answer to the nearest tenth of a foot if necessary

8.6 feet

A survey of students in the junior class at Avery's high school provided the following information:


Percentage of students who think there is too much homework

85%

Average number of hours per week spent on homework this year

8 hours

Average number of hours per week spent on homework last year

5 hours

Average number of students with afterschool jobs this year

215 students

Average number of students with afterschool jobs last year

135 students



In three to five complete sentences, write a statement that Avery can present to the school principal explaining why 85 percent of the students in the junior class think there is too much homework.

Answers

Avery can explain to her school principal that 85% of juniors think there is a lot of homework because several indicators have increased.

What is an indicator?

An indicator is a datum that is taken as a reference to analyze the evolution or change of a fact over time. In this case, the indicators would be:

Weekly hours used to do homeworkNumber of students with work for after school.

According to the information, it can be inferred that 85% of Junior students consider that there is an increase in homework because there were the following changes compared to last year:

Increase in hours spent on after school homework, last year the average was 5 hours, this year it is 8 hours.Increase in the number of students with after school jobs, last year it was 135 students, this year it is 215 students.

From the foregoing, it can be inferred that the number of homework has increased in Junior students and that is why now 85% of them consider that homework has increased.

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Need this asap! What is the denominator of the next term in the geometric sequence?

Answers

Answer:

162

Step-by-step explanation:

the pattern in the denominators is ' multiply by 3 '

that is

2 × 3 = 6

6 × 3 = 18

18 × 3 = 54

then the next denominator is

54 × 3 = 162

Answer:

162

Step-by-step explanation:

The multiplication number will be 3.

2x3=6

6x3=18

18x3=54

54x3=162. and so on.

Just make sure to multiply your next answer by 3.

What is 1 + 1 im dying from sleep deprivation and I lost the grand math challenge bc of this bro help me pls you smart ppl

Answers

Answer:

1

Step-by-step explanation:

say you don't have a dog.. your parents get you one dog, and then get you another, you now have 2 :)

Every 30 minutes, a box of crayons is pulled from the assembly line to check the quality. Of 240 checked boxes of crayons, 2 did not pass inspection How many boxes out of 12,000 should the crayon company expect to not pass inspection?​

Answers

Answer:

100

Step-by-step explanation:

2/240 = ?/12000

12000/240

50

2 x 50

100

2/240 = 100/12000

plssss i need helpp ASAP​

Answers

Answer:

A.

1) 60

2) 27

B)

1.cm³

2.cm³

3.m³

Step-by-step explanation:

A)

5x3x4 =60cm³

3x3x3=27cm³

B)

1.cm³

2.cm³

3.m³

The integral in this exercise converges. Evaluate the integral without using a table 0e^0d0

Answers

The value of  0e^0d0 is -1 if the integral in this exercise converges after applying limit.

What is convergent of a series?

A series is convergent if the series of its partial sums approaches a limit; that really is, when the values are added one after the other in the order defined by the numbers, the partial sums getting closer and closer to a certain number.

We are assuming the:

[tex]=\int\limits^0_{-\infty} {\theta e^{\theta}} \, d\theta[/tex]

Applying limit;

[tex]=\lim_{n \to \infty} \int\limits^0_{-n} {\theta e^{\theta}} \, d\theta[/tex]

After solving the integral:

[tex]=\lim_{n \to \infty} (e^{\theta})|^0_-_p[/tex]

= -(1-0)

= -1

Thus, the value of  0e^0d0 is -1 if the integral in this exercise converges after applying limit.

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Does anybody know this? ABCD is a parallelogram BDC=110. Find the following values,

Answers

Answer:

see explanation

Step-by-step explanation:

in a parallelogram]

• opposite sides are congruent

• opposite angles are congruent

• consecutive angles are supplementary , sum to 180°

• diagonals bisect each other

Then

DC = AB = 15

BC = 2 × WC = 2 × 9 = 18

∠ BAC = ∠ BDC = 110°

∠ DCA = 180° - 110° = 70°

DC = 15 (opposite sides in a parallelogram is parallel and equal to each other)
BC = 18 (the diagonals in a parallogram bisect at their midpoints -> BW = WC = 9 -> BC = 9 + 9 = 18)
angle BAC = 110 (opposite angles are equal to each other)
angle DCA = 70 (consecutive angles add up to 180, angle BAC and angle DCA are consecutive -> 180 - 110 = 70)

A car used 12 gallons to travel 288 miles. How many gallons of gas will the car use to travel 192 miles?

Answers

Hey there!

Let "x" the number of gallons and "y" by the distance travelled.

According to question,

12x + 288y = 0 -->(i) x + 192y = 0

=> 12(x + 192y) = 0 × 12

=> 12x + 2304y = 0 -->(ii)

By Elimination method,

Equation (i) - (ii)

(12x + 288y) - (12x + 2304y) = 0 - 0

=> 12x + 288y - 12x - 2304y = 0

=> - 2016y = 0

=> y = 2016

Putting the value of "y" in Equation (i)

12x + 288y = 0

=> 12x + 288 × 2016 = 0

=> 12x + 580608 = 0

=> 12x = - 580608

=> x = 48384

Hope it helps

What power of ten do we need to multiply 3.15576 by in order to find an expression equivalent to 31,557,600

Answers

Answer:

3.15576 * 10 to the power of 7 will get you 31557600.

Simplify
3x+4.4-2(6.6+x)

Answers

Im not 100% sure but I think it’s X-8.8

Solve 8 = 2x + 4
Ox=-4
OX= -1
Ox = 0
O x = 7

Answers

It is -4 because it is

The equivalent value of x from the equation is x = 2

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

In an equation, the expressions on either side of the equals sign are called the left-hand side (LHS) and the right-hand side (RHS), respectively. The equals sign (=) indicates that the two expressions have the same value, and that the equation is true for certain values of the variables involved.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. It typically consists mathematical operations, such as addition, subtraction, multiplication, division, and exponentiation.

Given data ,

Let the equation be represented as A

Now , the value of A is

8 = 2x + 4

On simplifying the equation , we gt

Subtracting 4 on both sides , we get

2x = 8 - 4

2x = 4

Divide by 2 on both sides , we get

x = 2

Therefore , the value of x is 2

Hence , the equation is solved and x = 2

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please help!!(ノ◕ヮ◕)ノ*:・゚✧will mark brainliest!!!

Answers

Step-by-step explanation:

so,

1/12 × $100

5/12 × $20

6/12 × $1

so the expected "payout" is

100/12 + 100/12 + 6/12 = 206/12 = 103/6 ≈ $17.17

minus the $2 entrance fee, the expected value is

17.17 - 2 = $15.17

but of course, there will be 6 losing $1 (while the other 6 will go home with a positive result).

What are the solutions of the equation 2x^2=18

Answers

x = 3, -3

See the attached image for the work!

I WILL GIVE Brainliest
WHAT IS 2 + 2=
a.4
b.3
c.69
d.420

Answers

Answer:

4

Step-by-step explanation:

2 + 2 = 4

Have a nice day:)

A- 4
Step by step
2 + 2 equals 4

A. y= 1/2x-14
B. y=1/2x-5
C. y=2x-14
D. y=2x-5

Answers

Answer:

B. y=1/2x-5

Step-by-step explanation:

From the graph, we read the slope of line JK.

slope = rise/run = -3/-6 = 1/2

The equation we need has the same slope.

y = mx + b

y = (1/2)x + b

It passes through point P(6, -2). Now we find b.

-2 = (1/2)(6) + b

-2 = 3 + b

b = -5

The equation is

y = (1/2)x - 5

Using the diagram, determine which statements are true. Select all that apply. m∠1 = 50° m∠3 = (2x + x + 25)° m∠2 = (x + 25)° m∠1 + m∠2 + m∠3 = 180° 50 + 2x+ x + 25 = 180

Answers

Answer:

All of them are true except for the second one.

Step-by-step explanation:

Answers A, C, D, E

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