Convert 491 into binary number

Answer:

Π = 2A/r^2

[tex]\pi = \frac{2a}{ {r}^{2} } [/tex]

Step-by-step explanation:

Get rid of the half by taking it to the left side or multiplying a fraction by it's denominator to get rid of it. If you multiplying by it's denominator you must also do the same for the other side. Then get rid of the radius by dividing or taking it to the other side, isolating pi.

Hope this helps. :)

Answer:

=4.070095

Step-by-step explanation:

(164)^2/3(4/3)^5/3

=(4^2/3)((4/3)^5/3)

=2.519842(4/3)^5/3

=(2.519842)(1.615218)

=4.070095

Answer:

The three skirts each cost $24.99

The two skirts priced $3 below the others cost $21.99

Step-by-step explanation:

Let [tex]a[/tex] represent the amount of money the "three skirts at one price" costs.

Let [tex]b[/tex] represent the amount of money the "2 skirts priced $3 below the others" costs.

From there, we can form the system of equations and solve:

[tex]3a+2b=118.95\\a-3=b\\\\3a+2(a-3)=118.95\\3a+2a-6=118.95\\5a-6=118.95\\5a=124.95\\a=24.99\\\\a-3=b\\24.99-3=b\\21.99=b\\b=21.99[/tex]

Answer:

it is 1k

Step-by-step explanation:

-6k + 7k = k(-6 +7)

= 1k

Answer: 170.25

Step-by-step explanation:

Quick version

Step 1: Convert 15 percent to decimal

[tex]15\%\:=\frac{15}{100}\\\\= 15 \%[/tex]

Step 2: Multiply 0.15 to 1135

[tex]0.15\cdot \:1135\\\\=170.25[/tex]

170.25 is 15 percent of 1135.

Answer:

170.25 is the solution.

Step-by-step explanation:

Let's find 15% of 1135.

Value of the percentage is,

→ 15 ÷ 100

→ 0.15

Let's find the solution,

→ 1135 × 0.15

→ 170.25

Thus, the answer is 170.25.

Answer:

1.7x25=42.5

70-4.5=27.5

her loss will be£27.5

Answer:

Sureeeeeee

Step-by-step explanation:

Algebra (from Arabic: الجبر‎, romanized: al-jabr, lit. 'reunion of broken parts,[1] bonesetting[2]') is one of the broad areas of mathematics, together with number theory, geometry and analysis. In its most general form, algebra is the study of mathematical symbols and the rules for manipulating these symbols;[3] it is a unifying thread of almost all of mathematics.[4] It includes everything from elementary equation solving to the study of abstractions such as groups, rings, and fields. The more basic parts of algebra are called elementary algebra; the more abstract parts are called abstract algebra or modern algebra. Elementary algebra is generally considered to be essential for any study of mathematics, science, or engineering, as well as such applications as medicine and economics. Abstract algebra is a major area in advanced mathematics, studied primarily by professional mathematicians.

Elementary algebra differs from arithmetic in the use of abstractions, such as using letters to stand for numbers that are either unknown or allowed to take on many values.[5] For example, in {\displaystyle x+2=5}x+2=5 the letter {\displaystyle x}x is an unknown, but applying additive inverses can reveal its value: {\displaystyle x=3}x=3. Algebra gives methods for writing formulas and solving equations that are much clearer and easier than the older method of writing everything out in words.

The word algebra is also used in certain specialized ways. A special kind of mathematical object in abstract algebra is called an "algebra", and the word is used, for example, in the phrases linear algebra and algebraic topology.

A mathematician who does research in algebra is called an algebraist.

Numeric expressions apply operations to numbers. For example, 2(3 + 8) is a numeric expression. Algebraic expressions include at least one variable and at least one operation (addition, subtraction, multiplication, division). For example, 2(x + 8y) is an algebraic expression.

Answer:

<3.

Step-by-step explanation:

Algebra In its most general form, algebra is the study of mathematical symbols and the rules for manipulating these symbols. it is a unifying thread of almost all of mathematics. And algebraic expression includes, a variable is an x, but they could be different signs like maybe a y, q and etc. coefficient is the main number, an operation which is the sign (+, x, - or division sign). and then the constant, which are the last number and the final number.

I don't know how to explain it but as soon as you start to do it, you'll learn what algebra is! it's not that hard it's like doing a regular problem just with a variable.

Oh yeah, sorry if this out of order but sometimes in algebra you have to figure out what the x is in some problem. Khan academy could help you learn!

hope this helps <33.

7p - 9 - p = 7p - p - 9 = 6p - 9

.....

Answer:

Step-by-step explanation:

Hello!

7p-9 -p

= 7p-p -9

= 6p-9

Answer:

if your meaning half of them chose history then it would be

50/50

Answer:

False

Step-by-step explanation:

3(5 - 2x) = 3(2x) - 3(5)

~Simplify

15 - 6x = 6x - 15

~Reorder

15 - 6x = -15 + 6x

As you can see, they are not the same so false.

Best of Luck!

Answer:

False

15-6x doesn't equal to6x-15

Answer:

A) 95

B) 1140

Step-by-step explanation:

If you need explanation I will give one

[tex]\{-7x-2y=14 \ \ /\cdot3\\\{6x+6y=18\\\\\{-21x-6y=42\\+\{6x+6y=18\\---------\\\\-15x=60 \ \ /:(-15)\\\\\huge\boxed{x=-4}\\\\6\cdot(-4)+6y=18\\\\-24+6y=18 \ \ /+24\\\\6y=42 \ \ /:6\\\\\huge\boxed{y=7}[/tex]

Answer:

Below

Step-by-step explanation:

Here is how to solve this by elimination

Divide both sides by 3

     -7x - 2y = 14

      2x + 2y = 6

Eliminate one variable by adding the equations

      -5x = 20

Divide both sides by -5

      x = -4

Sub in x to -7x -2y = 14

      -7x (-4) -2y = 14

                     y = 7

So, ( x, y ) --> ( - 4, 7 )

Hope this helps! Best of luck <3

Answer:

0.000056

Step-by-step explanation:

[tex] \\ 6 \times {10}^{ - 5 } - 4 \times {10}^{ - 6} [/tex]

[tex] \\ \longrightarrow6 \times \frac{1}{ {10}^{5} } - 4 \times \frac{1}{ {10}^{6} } [/tex]

[tex] \\ \longmapsto6 \times \frac{1}{ 100000 } - 4 \times \frac{1}{1000000}[/tex]

[tex] \\ \longmapsto0.00006 - 0.000004[/tex]

[tex] \\ \longmapsto0.000056[/tex]

Answer:

24

Step-by-step explanation:

60/5 (7-5)

= 12(2)

= 24

Answer:

tex] \frac{(x {}^{6} - 2)}{(x { }^{ - 4} + 3)} [/tex]

Answer:

12.53 = 6j + 2.51

Step-by-step explanation:

Since there are 6 bottles, we would muitply j by 6 to end up with 6j

The price of the bag of chips, $2.51, is already added on to make up the total cost of $12.53

12.53 = 6j + 2.51

Answer:

4+9= 13

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

y4 + 2x

(7)4 + 2(1)

28 + 2

30

Answer: k=m-7/4

Step-by-step explanation:

m-7=4k

m-7/4=k

k=m-7/4

Answer:

60 degree

Step-by-step explanation:

I don't know the process though

Answer:

x = 44°

Step-by-step explanation:

180 - 67 = 113

23 + 113 = 136

180 - 136 = 44.

Answer:

y= [tex]-\frac{4x}{9}[/tex] + [tex]\frac{2}{3}[/tex]

Step-by-step explanation:

6=4x+9y

First swap sides so that all variables are on the left side.

4x+9y=6

Subtract 4x from both sides.

9y=6-4x

Divide both sides by 9, this undoes the multiplication.

y=[tex]\frac{6-4x}{9}[/tex]

Divide 6-4x by 9.

y= [tex]-\frac{4x}{9}[/tex] + [tex]\frac{2}{3}[/tex]

hope this helps!

Answer:9

Step-by-step explanation:Follow the rule of BODMAS.

6+3-4+1+3= 9-4+4

9+0=9

Answer:

4

Step-by-step explanation:

Answer:

F is 117 and E is 63

Step-by-step explanation:

supplementary angles are 2 angles that add up to 18 to solve this you need to subtract 54 from 180 you'll get 126 then divide it by 2 then you get 63 so that's E, and F would be 63 plus 54 and that's how you get 117.

Answer:

6*12=72

Step-by-step explanation:

Find the factors of 72 and see which ones are double it's pair.

Answer:

Answer: -30

Step-by-step explanation:

[tex] {(8 - 10)}^{2} - 30 \div 5 \times 6 + 2[/tex]

BODMAS

let's first solve the bracket:

[tex] = {( - 2)}^{2} - 30 \div 5 \times 6 + 2 \\ = 4 - 30 \div 5 \times 6 + 2[/tex]

then let's divide:

[tex] = 4 - (30 \div 5) \times 6 + 2 \\ = 4 - 6 \times 6 + 2[/tex]

then let's multiply:

[tex] = 4 - (6 \times 6) + 2 \\ = 4 - 36 + 2[/tex]

simplify:

[tex] = - 30[/tex]

Answer:

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