Write the expression as a number in scientific notation. quantity 8 times 10 squared end quantity times quantity 3.2 times 10 to the fifth power end quantity all divided by quantity 4 times 10 cubed 7.2 x 107 7.2 x 104 6.4 x 107 6.4 x 104

Answers

Answer 1

Scientific notation exists as a method of writing very large or very small numbers. The expression as a number in scientific notation is 6.4 × [tex]$$10^4[/tex].

What is meant by scientific notation?

Utilizing scientific notation, one can express extremely big or extremely small values. When a number between 1 and 10 is multiplied by a power of 10, the result is represented in scientific notation.

To express exceedingly high numbers in a shorter manner, scientists have created a shorthand. Scientific notation is the name of this technique. The foundation of scientific notation is the base-10 powers. The coefficient is defined as the initial number, 1.23.

Given: (8 ×10²) × (3.2 ×[tex]$$10^5[/tex])/4 × 10³

simplifying the above equation, we get

= 800 × 320000/4000

= 64000

= 6.4 × [tex]$$10^4[/tex]

Therefore, the expression as a number in scientific notation is 6.4 × [tex]$$10^4[/tex].

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Answer 2

Answer:

6.4 x 10^4

Step-by-step explanation:


Related Questions

bonjour pouvez-vous m’aidez avec se devoir svp?

Lors des soldes, Rami, qui accompagne sa mère et s'ennuie un peu, compare trois étiquettes pour passer le temps:

n°1-valeurs: 120 €
soldé: 105 €

n°2-Robe rouge: 45 euros
soldé: -30%

n°3-soldes: 25 € - 12,50 €

1. Quel est le plus fort pourcentage de remise?
2. Est-ce que la plus forte remise en euros est la plus forte en pourcentage?

merci d’avance

Answers

Answer:

Step-by-step explanation:

Your aunt bought a new car. After three months of car payments she owed a total®
of $22,275 to the bank for the car loan. After 12 months, she owed $18,900 to
the bank for the car loan. What was her average payment rate on the principal of
the car loan during this time?

Answers

The principal of the car loan is $23,400, the interest rate of the car loan is 1.60% and the monthly payment is $375.

Given that, balance after 3 months = 22,275 and balance after 12 months = 18,900.

What is the average payment rate?

Average payment rate means, for any date of determination, the sum of the monthly payment rates for the prior three monthly periods divided by three.

Now, the difference of payment = 22,275 - 18,900

= $3,375

The difference of time = 12 - 3 = 9 months

So, the payment per month = 3,375 / 9

= $375 per month.

Now, 375 x 12 = $4,500

Principal amount = 4,500 + 18,900

= 23,400

Rate = 375 / 23400 × 100

= 0.016 × 100 = 1.60%

Therefore, the principal of the car loan is $23,400, the interest rate of the car loan is 1.60% and the monthly payment is $375.

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If there are ten marbles in a bag (those marbles being two yellow, three pink, and five blue) and two are randomly drawn, what is the probability of drawing two yellow marbles if the first one isn't put back before the second draw? please help T^T

Answers

Answer:

the answer is 2 upon 10 ndnznnznznzjzjzj


Find the distance between each pair of points. Round to the nearest tenth. X(5,4) and Y(2,1)

Answers

The distance between X(5,4) and Y(2,1) is 4.24 rounded to the nearest tenth.

How to find the distance between two points?

Let's consider we have two points (x₁, y₁) and (x₂, y₂) the distance between these two points is given by the formula;

[tex]d = \sqrt {\left( {x_1 - x_2 } \right)^2 + \left( {y_1 - y_2 } \right)^2 }[/tex]

The distance between two points (x₁, y₁) and (x₂, y₂)  is given by ;

[tex]d = \sqrt {\left( {x_1 - x_2 } \right)^2 + \left( {y_1 - y_2 } \right)^2 }[/tex]

So,

Distance between X(5,4) and Y(2,1)

[tex]d = \sqrt {\left( {5 - 2 } \right)^2 + \left( {4 - 1 } \right)^2 }[/tex]

d = √18 = 4.242640687

Roud to nearest tenth ⇒ 4.24 units.

Hence "The distance between X(5,4) and Y(2,1) is 4.24 rounded to the nearest tenth".

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Use the table below to find the cumulative frequency of the class "less then 30.5?"

Answers

I’m pretty sure it would be 12 correct me if I’m wrong

If A, B, and D are collinear and D bisects A and B. The Length of AD=2x-2 and the Length of DB=x+4.
Find the value of x. ​

Answers

The value of x if D bisects A and B is 6

How to determine the value of x?

The given parameters are

D bisects A and B.

Length AD = 2x - 2

Length DB = x + 4

This means that

AD =DB

So, we have

2x - 2= x + 4

Evaluate the like terms

x = 6

Hence, the value of x if D bisects A and B is 6


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show ur work BRAINILEST if ur right

Answers

Answer: number 1. 4 number2. 7

Step-by-step explanation:

I hope this helps!

Theresa purchased 10 rakes and 15 shovels for $595. brett purchased 8 rakes and 20 shovels for $676. assume the rakes are all priced the same, and all shovels are priced the same.

Answers

The price of a rake and a shovel is $22 and $25 respectively.

Let's assume the price of a rake is x and the cost of a shovel is y.

Now, Theresa purchased 10 rakes and 15 shovels for $595.

10x + 15y = $595                                                                      -------------------(1)

Taking 5 common out from each side of the equation,

5( 2x + 3y) = 5( 119)

2x + 3y = 119                                                                             ------------------(2)

Brett purchased 8 rakes and 20 shovels for $676.

8x + 20y = $676                                                                       ------------------(3)

Multiply equation (2) by 4 and subtract from equation (3),

8x + 20y - ( 8x + 12y ) = 676 - 476

8x + 20y - 8x - 12y = 200

8y = 200

y = $25

Therefore,

10x + 15y = 595

10x + 15(25) = 595

10x + 375 = 595

10x = 595 - 375

10x = 220

x = $22

Hence, the price of a rake and shovel is $22 and $25 respectively.

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What is the y -value of the focus of the parabola?

Answers

Answer:

8136366271773737i228882ywhw

solve the equation

3(n+11)-5n = -2(n-12)+9

Answers

Answer:

infinite number of solutions

Step-by-step explanation:

3(n + 11) - 5n = - 2(n - 12) + 9 ← distribute parenthesis on both sides

3n + 33 - 5n = - 2n + 24 + 9 , that is

- 2n + 33 = - 2n + 33

since the expressions on both sides are the same then any value of n will make the equation true.

thus the equation has an infinite number of solutions

Answer:

Any real value. Infinite no. of solutions.

Step-by-step explanation:

Let's open the bracket first. Multiply the term outside the bracket with each term inside the bracket.

[tex]\Rightarrow[/tex] 3(n+11)-5n = -2(n-12)+9

[tex]\Rightarrow[/tex] 3n + 33 - 5n = -2n + 24 + 9

Now simplify the n terms on both sides

[tex]\Rightarrow[/tex] -2n + 33 = -2n + 33

Here both LHS and RHS are same. And the terms gets canceled. Any real value of n satisfy the above equation.

Recycled​ CDs, Incorporated, offers a choice of 5 used CDs for ​$29​, with each additional CD costing ​$. Write a cost function for purchasing 5 or more CDs. What will the cost of buying CDs​ be? Let x represent the number of CDs over 5.

Answers

The cost function will be of the form f(x) = x + 29.

What is a  function ?

A function have a set of dependent variable for the given or specified independent variable.

According to the given question Recycled​ CDs, Incorporated, offers a choice of 5 used CDs for ​29 dollars with each additional CD costing a dollar.

We have to write a function for purchasing 5 or more CDs where x represents the no. of CDs over 5.

Let f(x) represents the cost of CDs.

∴ f(x) = x + 29.

Here the constant 29 dollars represents the cost of 5 CDs and x represents no. of CD's over 5.Put x = 0 and the cost for 5 CDs will be 29 and for any more value of x we will get our desire result.

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help pleasee
In a right triangle, the sides are 1 cm and √3 cm. Calculate the measures of acute angles​

Answers

Answer:

This will be a 30°-60°-90° triangle because the hypotenuse is 2 cm, which is twice the length of the shorter leg.

URGENT
The point (5,r) and (8,-14 lie on a line with slope -4 find the missing coordinate r

Answers

+2 is the coordinate to solve jt

five sixths divided by 5

Answers

[tex]\cfrac{5}{6}\div 5\implies \cfrac{5}{6}\div \cfrac{5}{1}\implies \cfrac{5}{6}\cdot \cfrac{1}{5}\implies \cfrac{1}{6}\cdot \cfrac{5}{5}\implies \cfrac{1}{6}\cdot 1\implies \cfrac{1}{6}[/tex]

A recipe calls for 1 5/8 cups of milk to make 8 pancakes. The number of cups of milk needed to make 26 pancakes is?

Answers

Answer:

13 cups of milk I think

Step-by-step explanation:

Given the formula for an exponential function, is it possible to determine whether the function grows or decays exponentially just by looking at the formula?

Answers

yes, actually it is possible. The mathematical expression f(x)=exp or ex denotes the exponential function.

What is meant exponential function?

The mathematical expression f(x)=exp or ex denotes the exponential function. The word, unless specifically stated differently, normally refers to the positive-valued function of a real variable, though it can be extended to the complex numbers or adapted to other mathematical objects like matrices or Lie algebras. When the input variable x appears as an exponent in the formula f(x) = axe, an exponential function is indicated. The exponential curve is influenced by both the exponential function and the value of x.

One of the key mathematical operations is the exponential function (though it would have to admit that the linear function ranks even higher in importance). We allow the exponent to be the independent variable to create an exponential function. The formula f(x)=2x is a straightforward example.

Hence, yes, actually it is possible.

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PLs help me pls help

Answers

The missing values from area model will be  48, 240.

Describe Area Model.

An area model is a rectangular diagram or model used in mathematics for problems involving multiplication and division, where the length and breadth of the rectangle are determined by the factors, quotient, and divisor.

Write the enlarged form of each component first. Next, sketch your model. To get the area of each smaller rectangle, multiply next. To determine the entire area, add those items last.

The area model will be -

                    60                        6

8                   480                      48

40                2400                    240

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You thought the balance in your checking account was $68. When your bank statement arrived, you realized that you forgot to record a check. The bank statement listed your balance as $26. What was the amount of the check that you forgot to record?

Answers

The amount of the check you forgot to record is $42!!! hope this helps:)

Compute the BMI 75 kg 6'1"​

Answers

They answer would be BMI: 21.81 KG/M2 . Hope this helps.


Find a₁ for each arithmetic series. S₈ =440 and d=6

Answers

An arithmetic sequence (AP) is a progression in which the difference (called the tolerance) between two consecutive terms in the passage/progression is constant.

Therefore, the expression for the nth term is,

an = a₁ + (n − 1) d

and in general

an = am + (n - m) d.

where d is the difference.

For an arithmetic series with initial term a₁ and difference between terms of d

an = a₁ + (n − 1) d

We are given some of the values,

d = 6 and

S8 = 440

So, we will put the values in the formula and calculate the desired value,

a1 = 440 = a1 + ( 8 - 1 ) * 6 = a1 + 42

a1 = 440 - 42 = 398.

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Can someone please help answer the questions I posted 11 hours ago, I'll give 5 stars!!

Answers

What question???????
Can you post it again ?

Name three planes that intersect at point P


Name the intersection of plane PQO and plane NMP


Name three lines that intersect at point S


I points PM & Q collinear are they coplanar

Answers

There are points P, M & Q collinear are not collinear because they didn't lie in the same line but they are coplanar.

What are the collinear points and the coplanar?

Collinear points are defined as points that are along a straight line represented by a collinear. Because a straight line may be drawn continuously between any two points, they are always collinear. There can be a collinear relationship from three or more points, although it is not necessary.

We have given a line and a planar surface with points O, M, N, Q, P, S, and T.

Here three planes that intersect at point P which are PMN plane, PQM plane and QST plane.

Here three planes that intersect at point S which are STN plane, MNS plane and QST plane.

Here points P, M & Q collinear are not collinear because they didn't lie in the same line but they are coplanar.

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Use a coordinate grid to write a coordinate proof of the following statement.
If the vertices of a triangle are A(0,0), B(2 a, b) , and C(4 a, 0) , then the triangle is isosceles.
c. Use the Distance Formula to write an expression for B C .

Answers

Distance between the points A and B are equal to distance between points B and C.

So, The given triangle is isosceles.

And, . By using distance formula we have to write an expression for BC as,

⇒ [tex]D_{BC} = \sqrt{4a^2+b^2}[/tex]

Here,

The vertices of a triangle are A (0, 0), B (2a, b) and C (4a, 0)

We have to check the triangle is isosceles.

And, Write an expression for BC.

What is Isosceles triangle?

When two sides of a triangle are equal then the triangle is said to be isosceles triangle.

Now,

The vertices of a triangle are A (0, 0), B (2a, b) and C (4a, 0)

We have to check the triangle is isosceles.

For this we use distance formula and prove that the two sides of triangle are equal.

Distance between the points A (0, 0) and B (2a, b) is;

[tex]D_{AB} = \sqrt{(2a-0)^2 + (b-0)^2} = \sqrt{4a^2+b^2}[/tex]

And, Distance between the points B (2a, b) and C (4a, 0) is;

[tex]D_{BC} = \sqrt{(4a-2a)^2 + (0-b)^2} = \sqrt{4a^2+b^2}[/tex]

Hence, Distance between the points A and B are equal to distance between points B and C.

So, The given triangle is isosceles.

c. By using distance formula we have to write an expression for BC as,

⇒ [tex]D_{BC} = \sqrt{(4a-2a)^2 + (0-b)^2} = \sqrt{4a^2+b^2}[/tex]

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Simplify the expression:
–10v–6–1

Answers

-10v-7 First you need to simplify this expression which is -10v-6-1 collect like terms which is -10x+(-6-1) then you get -10v-7

Workers in an office of 90 staff were asked their favourite type of take-away.
The results are summarised in the table.

Take-away Frequency Angle
Pizza 29
a
Curry 9
b
Fish & chips 24
c
Kebab 16
d
Other 12
e


How many degrees represent 1 person?

Answers

Each angle to draw a pie chart a, b, c, d, and e will be 116°, 36°, 96°, 64°, and 48°, respectively.

What is an angle?

The angle is the distance between the intersecting lines or surfaces. The angle is also expressed in degrees. The angle is 360 degrees for one complete spin.

Workers in an office of 90 staff were asked their favorite type of takeaway. The results are summarised in the table.

Take-away             Frequency            Angle

   Pizza                         29                       a

   Curry                          9                        b

Fish & chips                 24                        c

  Kebab                        16                        d

   Other                         12                       e

The angles on the pie chart are calculated by multiplying the table by 4. Then the angles will be

∠a = 4 x 29 = 116°

∠b = 4 x 9 = 36°

∠c = 4 x 24 = 96°

∠d = 4 x 16 = 64°

∠e = 4 x 12 = 48°

Each angle to draw a pie chart a, b, c, d, and e will be 116°, 36°, 96°, 64°, and 48°, respectively.

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Can you help me in identifying m?

Answers

The length of the side m are obtained using the theorem of Pythagoras and proportional triangles to give;

a) m ≈ 28.4

b) m ≈ 12.09

c) m ≈ 9.38

Which theorem can be applied to find the value of m?

a) The given triangle, is a right triangle.

The length of the legs of the triangle are; 33 and 56.

According to Pythagorean theorem, the length of the hypotenuse side, l, is therefore;

l = √(33² + 56²) = 65

From the formula for the area of a triangle, we have;

Area of a triangle, A, equals half the base length multiplied by the height.

A = 0.5 × Base length × Height

For the right triangle, we have;

A = 0.5 × Leg 1 × Leg 2

Which gives;

A = 0.5 × 33 × 56 = 924

However;

A = 0.5 × l × m

Where;

l = The hypotenuse = The base length = 65

m = The height of the triangle

Which gives;

A = 0.5 × 65 × m = 924

m = 924/(0.5 × 65) ≈ 28.4

m ≈ 28.4

b) The side m is parallel the 14 units long side.

The proportion the side m divides a side of the triangle = 3 and 19

Given that the triangle formed by m is proportional to the larger triangle, we have;

m/14 = 19/(19+3)

m = 14 × 19/(19+3) ≈ 12.09

c) From the proportionality of similar triangles, we have;

m/16 = 17/(14+15)

m = 16×17/(14+15) ≈ 9.38

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A squirrel can run a short distance at a rate of 4 3/4 miles in 15 minutes. A fox can run a short distance at a rate of 21 miles in half an hour. Which is faster, and how much faster in miles per hour?

Answers

35 mph= .58 of a mile per minute

21 miles in 30 minutes= .7 of a mile per minute

if you multiply by 60 to see the distance in the same amount of time:

rabbit: 35 mph

fox: 42

So the fox would run a greater distance in the time given. Hope this helps!


Suppose ∠4 and ∠ 5 form a linear pair.
If m ∠1=2 x, m ∠2=3 x-20 , and m ∠3=x-4 what is m ∠3 ?

A. 26° B. 28° C. 30° D. 32°

Answers

Option C: The value of m ∠3 is 30° (C).

As per the question, ∠4 and ∠5 form a linear pair. Therefore the sum of ∠4 and ∠5 is 180° so, so the sum of the remaining m∠1,m∠2, and m∠3 angles is 180°.

So, m∠1 + m∠2 + m∠3 + m∠4 + m∠5 = 360° (as the total angle is 360°).

Now, m∠4 + m∠5 = 180°(∠4 and ∠5 form a linear pair). (∴ m∠1 + m∠2 + m∠3 = 180°). Now we will put the given values and will try to find out the value of x.

2x + (3x-20) + (x-4) = 180

[m ∠1 = 2 x, m ∠2 = 3 x-20, and m ∠3 = x-4]

or,

6x-24=180

or,

6x = 180+24

or,

6x = 204

or, x = 204/6

or. x = 34

As per the question we have to find out the value of m ∠3.

m ∠3 = 34° - 4° = 30° (as x = 30°)

So, m ∠3 is 30°.

If ∠4 and ∠ 5 form a linear pair. And, m ∠1=2 x, m ∠2=3 x-20, and m ∠3=x-4, the value of ∠3 is 30°. Therefore, Option C is the correct answer.

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Evaluate the formula V = Bh/3 for each pair of values.

B = 118 m^2 , h = 66 m

Answers

Answer:

i just need a points thnkyuuuu

PLEASE HELP I DONT UNDERSTAND

Answers

Answer:

x = 16

Step-by-step explanation:

16 and x have the same length.

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