using mental math find 4.623 x 1000. Please explain how you got your answer​

Answers

Answer 1

Answer:

4 623

Step-by-step explanation:

4.623 x 1000

When multiplying by a  positive power of 10, move the decimal by the number of zeros

Since we have 3 zeros, move the decimal 3 places to the right

4 623

Answer 2

Answer:

You can easily figure that

[tex]4.623 = 4623 \cdot 10^{-3}[/tex]

[tex]1000 = 1\cdot 10^3[/tex]

The multiplication: [tex](4623 \cdot 10^{-3}) \cdot (10^3)=4623[/tex]


Related Questions

Which is not a way to name a line, (XYZ)?

Answers

Answer:

YZX, YXZ, ZXY, XZY

Step-by-step explanation:

is this correct? if not what is the answer

Answers

Answer:

x = 50

Step-by-step explanation:

You are correct.

x + m<PQS + m<PSQ = 180

m<PQS = m<QRT = 70

m<QST + m<PSQ = 180

120 + m<PSQ = 180

m<PSQ = 60

x + 70 + 60 = 180

x + 130 = 180

x = 50

Great job!

1 point
1. Johanna spun a spinner 66 times and recorded the frequency of each
result in the table. What is the experimental probability of spinning an odd
number? Write your answer using a / to represent the fraction bar.
Outcome
1
1
2
3
4
5
6
Frequency | 12
9
11
8
12
14

Answers

Answer: 35 / 66

Step-by-step explanation:

Given the data bekow:

Outcome : - - - 1 - - - 2 - - - 3 - - - 4 - - - 5 - - - 6

Frequency : - 12 - - - 9 - - - 11 - - 8 - - - 12 - - - 14

What is the experimental probability of spinning an odd

P(spinning an odd) = (number of occurrence of an event / number of trials)

Odd outcomes = 1, 3, 5

Frequency of 1 = 12

Frequency of 3 = 11

Frequency of 5 = 12

Number of occurrences of odd = (12 + 11 + 12) = 35

Number of trials = 66

Therefore,

P(spinning an odd) = 35 / 66

PLEASEEE HELPPPPP 88 points!!

Answers

Answer:

3pi/4 =x       and 5pi/4 =x

Step-by-step explanation:

cos x + sqrt(2) = - cos x

subtract cos x from each side

cos x - cosx + sqrt(2) = - cos x - cos x

sqrt(2) = -2 cos x

Divide each side by -2

-sqrt(2) / 2 =-2 cos (x) /-2

-sqrt(2) /2 =cos (x)

Take the inverse cos of each side

cos(-1)(-sqrt(2) /2) =cos^-1(cos (x))

3pi/4 =x       and 5pi/4 =x

Answer:

Here's your answer:

3pi/4 =x       and 5pi/4 =x

cos x + sqrt(2) = - cos x

subtract cos x from each side

cos x - cosx + sqrt(2) = - cos x - cos x

sqrt(2) = -2 cos x

Divide each side by -2

-sqrt(2) / 2 =-2 cos (x) /-2

-sqrt(2) /2 =cos (x)

Take the inverse cos of each side

cos(-1)(-sqrt(2) /2) =cos^-1(cos (x))

3pi/4 =x       and 5pi/4 =x

Step-by-step explanation:

Please tell me the answer for
Factorise 15p square - 7q square

Answers

Step-by-step explanation:

15p square - 7q square

square(15p-7q)

hope it helps

In a half-kilo jar of legumes there are 2.5g of fat. In another 400g can of legumes B there is 2.1g of fat. Are these data in proportion? If the data is not in proportion, in which of the two cans is there more fat proportionally?

Answers

Answer:

no400 g can

Step-by-step explanation:

A half-kilo jar is 500 grams, so a 400 g can would be 4/5 the weight. 4/5 of 2.5 g of fat would be 2.0 g of fat. The 400 g can has 2.1 g, so has more fat, proportionally, than its weight would suggest.

The fat is not proportional to the can sized. The 400 g can has more fat, proportionally.

Substitute with One Solution

2x -y=-11
6x + y = 3​

Answers

Answer:

x=1, y = -3

Step-by-step explanation:

2x -y=-11

6x + y = 3​

Add the two equations together

2x -y=-11

6x + y = 3​

--------------------

8x  = 8

Divide by 8

8x/8 = 8/8

x= 1

Now find y

6x+y = 3

6(1) +y = 3

6+y =3

Subtract 6 from each side

6+y-6 = 3-6

y = -3

which figure shows a 90° clockwise rotation

Answers

Answer:

it is answer two

Step-by-step explanation:

i only answered because the other person just spoke jibberish

If the point (a,3) lies on the graph of the equation 5x+y=8, then a=

Answers

Answer:

a = 1

Step-by-step explanation:

The given equation is:

=> 5x+y = 8

Also,

Point = (x,y) = (a,3)

So, x = a , y = 3

Putting this in the above equation

=> 5(a)+3 = 8

=> 5a = 8-3

=> 5a = 5

Dividing both sides by 5

=> a = 1

How many diagonals can be drawn from each vertex of a 15-gon?
11
18
12
8
None of these answers are correct.

Answers

Answer:

Correct option: third one -> 12

Step-by-step explanation:

In a polygon with 'n' vertex, we can trace diagonals from one vertex to all vertices, except to the vertex chosen and the two adjacent vertices (because we would have sides and not diagonals), so we would have 'n - 3' diagonals.

If we have a polygon with 15 vertex, the number of diagonals from one vertex is 15 - 3 = 12.

Correct option: third one

Congruent triangles have the same perimeter and area.

False

True

Answers

Answer:

true

Step-by-step explanation:

they are the same, but they are positioned in other ways and or places

Answer:

True

Step-by-step explanation:

If they are congruent then they have the same side lengths, if they have the same side lengths then they also have the same area and perimeter

WA
Line segment WX is the radius of circle X, and line
segment ZY is the radius of circle Y. Points W, X, C, Y, and
Z are all on line segment WZ.
What is the area of circle C, which passes though points W
and Z?
X
O 81 T units?
10
O 164 TT units?
O 324 units?
O 1296 units
Mark this and retum
Save and Exit
Next
Submit
ch

Answers

Answer:

I think the answer is C. 324 but i'm not sure. lemme know if i'm wrong and what the correct answer is

Step-by-step explanation:

The area of the given Circle C is; 324π

What is the area of the circle?

From the attached diagram, we see that;

WX is the radius of circle X and is equal to 8 units

Similarly, ZY is radius of circle Y and is equal to 10 units.

Thus, diameter of circle X = 8 * 2 = 16 units

Diameter of circle Y = 10 * 2 = 20 units

Thus;

Diameter of circle C = 20 + 16 = 36 units

Area of Circle C = π * 36²/4

Area of Circle C = 324π

Read more about Area of circle at; https://brainly.com/question/15673093

Brainliest question please help me please

Answers

Answer:

Step-by-step explanation:

ES=√((6+1)²+3²)=√(49+9)=√58

ST=(6-1)=5

TR=5+1=6

IR=√((6-1)²+(3-1)²)=√(25+4)=√29

PI=6+1=7

PE=3+2=5

Perimeter=√58+5+6+√29+7+5=23+√58+√29≈37.68 units

Ricky is making diamond shapes in different sizes from pieces of wire. The diamonds will be used to decorate a barn for a barn dance. How many inches of wire will Ricky need to make a diamond with sides that are 9 inches long?

Answers

Answer:

Step-by-step explanation:

Simplify 9(x+7)^2/3(x-1)(x+7)

Answers

9/3 =3
(X+7)^2/ (x+7) = x+7
1/x-1

3(x+7)/x-1

3x+21/x-1

Which side of ADEF is the longest?

Answers

Answer:

B: EF

Step-by-step explanation:

This is a right triangle. In a right triangle there are always 2 legs and 1 hypotenuse. The hypotenuse is the side opposite the right angle and is always the longest side. Therefore, EF is the longest side.

Hope this helps! (Please consider giving brainliest)

Which graph displays a rate of change of 2.5?

On a coordinate plane, a line with negative slope goes through points (negative 2, 0) and (negative 1, negative 2).
On a coordinate plane, a line with negative slope goes through points (0, negative 3) and (2, 2).
On a coordinate plane, a line with positive slope goes through points (0, 1) and (2, 2).

Answers

Answer:

in edg is B

Step-by-step explanation:

Answer:

It's B

Step-by-step explanation:

Franco made a dozen muffins for his party. Upon taking them out of the oven,
he noticed that 2 of the muffins were badly burned. Franco served of the remaining muffins.
10
Which equation shows the fraction of the non-burned muffins that remains?

Answers

Answer:

Option B.

Step-by-step explanation:

This question is incomplete; find the complete question with the attachment.

Franco made number of muffins = a dozen

A dozen muffins = 12 muffins

Number of muffins were burned = 2

Remaining muffins = 12 - 2 = 10

Franco served 7 of the remaining non-burned muffins,

Fraction of muffins served = [tex]\frac{7}{10}[/tex]

Remaining muffins = 3

Fraction of remaining muffins = [tex]\frac{3}{10}[/tex]

Fraction of remaining non-burned muffins we can get from,

[tex]\frac{10}{10}-\frac{7}{10}=\frac{3}{10}[/tex]

Option B is the correct equation.

If £31 = 500 rubles, how many £ are in 992 rubles? Give your answer to 2 dp.

Answers

Answer:

There are £61.50 in 992 rubles

Step-by-step explanation:

Here, we shall be doing some currency conversions.

Now,

£31 = 500 rubles

Then;

£x = 992 rubles

To get c, what we do is simply cross multiply

£x * 500 rubles = £31 * 992 rubles

£x = (£31 * 992 rubles)/500 rubles

£x = £61.504

which is £61.50 to two decimal places

Hey, someone mind helping me w/ this?

Answers

Answer:

[tex]785in^3[/tex]

Step-by-step explanation:

[tex]V=\pi r^2h=\pi *5^2*10=785.39816\\=785.4\\=785in^3[/tex]

He is right cuz idk and I’m just tryna get points

please... HELP
i'm having such a hard time on math T^T

Answers

Answer:

20

Step-by-step explanation:

If its is 2 to 8 you divide by 2 to get 1;5 which u multiply by 5 to get 5:20

Answer:20 chickens

Step-by-step explanation:if there are 2 roosters for every four chickens, then you do 4*5

Jorge solves the equation 4 x minus (x + 2) + 6 = 2 (3 x + 8) using the steps below. Step 1: 4 x minus x + 2 + 6 = 6 x + 16 Step 2: 3 x + 8 = 6 x + 16 Step 3: 8 minus 16 = 6 x minus 3 x Step 4: Negative 8 = 3 x Step 5: Negative StartFraction 8 Over 3 EndFraction = x Jorge verifies his solution by substituting Negative StartFraction 8 Over 3 EndFraction into the original equation for x. He determines that his solution is incorrect. Which best describes Jorge’s error? Jorge distributed incorrectly. Jorge incorrectly combined like terms. Jorge incorrectly applied the addition and subtraction properties of equality. Jorge incorrectly applied the multiplication and division properties of equality.

Answers

End fraction is a lot of math lol but try the 16=6 x

Answer:

Jorge incorrectly applied the multiplication and division properties of equality.

Step-by-step explanation:

D on edg

-2x+3y=-12 2x+y=4 After adding the two equations to eliminate x you are left with 4y=-8 Solve for y: y =

Answers

Answer:

y = -2

Step-by-step explanation:

y = -8/4 = -2

Answer:

y= -2

Step-by-step explanation:

on edg 2020 :))

can someone help me evaluate this?

Answers

Answer:

[tex]\frac{4}{9}[/tex]

Step-by-step explanation:

So first rewrite the inside of the parentheses as improper fractions:

[tex]\frac{8}{9}[/tex] ÷ [tex](\frac{25}{4}*\frac{16}{5}-18)[/tex]

Now simplify the inside:

[tex]\frac{8}{9}[/tex] ÷ 2

Which is:

[tex]\frac{8}{18}=\frac{4}{9}[/tex]

Complete the factorization of 3x ^ 2 - 10x + 8 3x^ 2 -10x+8=(x- Box x-4)

Answers

Answer:

[tex]3x^2-10x+8=(x-x_1)(x-x_2)=(x-2)(x-\frac{4}{3})[/tex]

Step-by-step explanation:

The general form of a quadratic polynomial is given by:

[tex]ax^2+bx+c[/tex]    (1)

You have the following polynomial:

[tex]3x^2-10x+8[/tex]    (2)

In order to complete the factorization you can use the quadratic formula, to obtain the roost of the polynomial. The quadratic formula is given by:

[tex]x_{1,2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]    (3)

By comparing the equation (1) with the equation (2) you obtain:

a = 3

b = -10

c = 8

Then, you replace these values in the equation (3):

[tex]x_{1,2}=\frac{-(-10)\pm \sqrt{(-10)^2-4(3)(8)}}{2(3)}\\\\x_{1,2}=\frac{10\pm2}{6}\\\\x_1=2\\\\x_2=\frac{4}{3}[/tex]

Then, the factorization of the polynomial is:

[tex]3x^2-10x+8=(x-x_1)(x-x_2)=(x-2)(x-\frac{4}{3})[/tex]

which equation be used to find the surface area of the cylinder

Answers

Step-by-step explanation:

Is this the one you needed??

what is 2.1 rounded to the nearest tenth of a cubic meter?

Answers

Answer:

19.396193043263

Step-by-step explanation:

Ana Maria has applied for United States citizenship. She has studied American history and government for a long time and thinks she is ready to take the citizenship test. When she took the practice test online she answered forty-seven questions correctly and only missed three. What percent of the questions did she get right?

Answers

Answer:

94%

Step-by-step explanation:

no of qn = 47(correctly answer)+3 (wrong answered)

                =50

percentage =47/50*100

                    =94

This graph shows the amount of money Abdul earns from tutoring compared with the number of hours he works. Select the correct statement about the graph

Answers

The answer would be D be cause The graph shows that every hour he earns $18 in a steady line.

The graph shows that for every hour the earnings are $!8.

Option D is the correct answer.

What are coordinates in a graph?

The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.

The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.

We have,

Some of the coordinates from the graph are:

(1, 18), (2, 36), and (3, 54)

Now,

The rate of change between (1, 18), and (2, 36).

Slope = (36 - 18) / (2 - 1) = 18

The rate of change between (2, 36), and (3, 54).

Slope = (54 - 36) / (3 - 2) = 18

This means,

That for every hour there is an earning of $18.

Thus,

The graph shows that for every hour the earnings are $!8.

Learn more about coordinates here:

https://brainly.com/question/13118993

#SPJ2

major help please :)

Answers

Answer:

B.

Step-by-step explanation:

[tex](\frac{x}{y} )^{a} = \frac{x^{a}}{y^{a}}[/tex]

[tex](\frac{-11}{14} )^{5} = \frac{(-11)^{5}}{14^{5}}[/tex]

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