how to be good at math??? ​

Answer:

The number '1' is called the 'multiplicative identity' of a number '-12/13' because it does not change the number '-12/13' after getting multiplied by it.

Therefore, option (B) is true.

Step-by-step explanation:

We know that when a number let say 'n' get multiplied by '1', it remains unchanged.

i.e.

The number '1' is called the 'multiplicative identity' of a number 'n' because it does not change the number 'n' after getting multiplied by it.

Given the number

-12/13

Multiply the number '-12/13' by '1'.

i.e.

-12/13 × 1 = -12/13

1 × -12/13 = -12/13

Thus, the number '1' is called the 'multiplicative identity' of a number '-12/13' because it does not change the number '-12/13' after getting multiplied by it.

Therefore, option (B) is true.

Answer:

looking at anwser now

Step-by-step explanation:

Answer:

2y=20-x

y=20-x/2

y=10-x/2

Step-by-step explanation:

Answer:

500 x^11

Step-by-step explanation:

Answer:

500x^11

Step-by-step explanation:

Using PEMDAS first get rid of parenthesis

(2x^4)^2 is the same as 2x^4 * 2x^4 or 4x^8

(5x)^3 is the same as 5^3 * x^3 or 125x^3

multiply the two together, remember exponents on like terms add together

125*4 = 500

x^8 * x^3 = x^11

multiply together

500x^11

please give thanks :)

Answer:

x = √143

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Trigonometry

Step-by-step explanation:

Step 1: Identify

We are given a right triangle

Step 2: Define variables

Leg a = 1

Leg b = x

Hypotenuse c = 12

Step 3: Solve for x

Given :

Gary Sanchez struck out 112 times in 350 at bats.

To Find :

Percentage of his at-bats were strike outs.

Solution :

We know, percentage hits is given by :

[tex]Percentage = \dfrac{\text{Number of time bats were strike out}}{\text{Total number of bats}}\times 100 \ \%[/tex]

Putting all given values in above equation, we get :

[tex]Percentage = \dfrac{112}{350}\times 100\ \%\\\\Percentage = 32\ \%[/tex]

Hence, this is the required solution.

Answer: repeated addition i think

Step-by-step explanation:

hope u understand this

Answer:

I think A but i'm not sure

Step-by-step explanation:

Answer: 6

Step-by-step explanation:

Answer:

it's equal to 6/1!!

Step-by-step explanation:

Answer:

0.35

Step-by-step explanation:

The probability that a customer gets a hair cut and also gets a hair colored is 0.2088

Probability is a measure of the likelihood of an event occurring. The probability formula is defined as the possibility of an event happening is equal to the ratio of the number of favorable outcomes and the total number of outcomes. Probability of event to happen P(E) = Number of favorable outcomes/Total Number of outcomes.

Given here: The probability of customers getting a haircut is 87% and the probability that the customers that have a haircut also get their hair colored are 24%

Thus the conditional probability that a customer who has a hair cut also gets his hair colored is

P( haircut/hair colored )= 87%×24%

                                      =0.87×0.24

                                      =0.2088

Hence, The probability that a customer gets a hair cut and also gets a hair colored is 0.2088

Learn more about probability here:

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Answer:

Me and my massive brain, among other massive things of mine, believe it to be -1

Step-by-step explanation:

The value of the function F(g(x) will be equal to (7 / 2).

A function is defined as the expression that set up the relationship between the dependent variable and independent variable.

Given functions are:-

The function F(g(x) is written as :-

F(g(x) = 3 [ x + ( 1 / ( x-1 )) -7 ]

F(g(x) = 3 [ (3 + (1/2) - 7 ]

F(g(x) = 3 (7 / 2 ) -7

F(g(x) = ( 21/2) - 7

F(g(x) = ( 21-14 ) ( 2 )

F(g(x) = ( 7/2 )

Therefore the value of the function F(g(x) will be equal to (7 / 2).

To know more about function follow

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Answer:

The length of w is 0.8 cm

Step-by-step explanation:

In Δ WXY

x is the opposite side to ∠X

w is the opposite side to ∠W

y is the opposite side to ∠Y

∵ m∠X = 45°

∵ m∠Y = 108

∵ The sum of the measures of the interior angle of a triangle is 180°

∴ 45 + 108 + m∠W = 180

→ Add the like terms in the left side

∵ 153 + m∠W = 180

→ Subtract 153 from both sides

∴ m∠W = 27°

Now we can use the sine rule to find the length of w

∵ [tex]\frac{w}{sin(W)}[/tex] = [tex]\frac{x}{sin(X)}[/tex] = [tex]\frac{y}{sin(Y)}[/tex]

→ Use the first 2 ratios to find w

∵ x = 1.2 cm

∵ [tex]\frac{w}{sin(27)}[/tex] = [tex]\frac{1.2}{sin(45)}[/tex]

→ By using cross multiplication

∴ w × sin(45) = 1.2 × sin(27)

∴ w sin(45) = 1.2 sin(27)

→ Divide both sides by sin(45)

∴ w = 0.7704474263

→ Round it to the nearest tenth

∴ w = 0.8 cm

∴ The length of w is 0.8 cm

Answer:

A) The number of wallpapers needed to cover the walls is 6 double roll wall papers

B) The number of wall paper border rolls needed is 3 rolls

Step-by-step explanation:

A) The given parameters are;

The dimensions of the room are 9 ft. by 12 ft. by 8 ft. high,

The area one double role wallpaper covers = 60 ft.²

Therefore, we have;

The area of the room wall = 12 × 8 × 2 + 9 × 8 × 2 = 336 ft²

The number of double rolls of wallpaper to be used = Area of wall/(area of wallpaper) = 336/60 = 5.6

Therefore, given that the wall papers are sold in single units, we round up to the next whole number of units to get;

The number of wallpapers needed to cover the walls = 6 double roll wall papers

B) The borders of a wallpaper are installed parallel (and installed along) to the ceiling line

Therefore, the amount of wallpaper border required is given as follows;

Wall paper border length required = 2 × Length of the room + 2 × Width of the room

∴ Wall paper border length required = 2 × 9 ft. + 2 × 12 ft. = 42 ft.

The size of each wall paper border sold = 5 yd. = 15 ft.

Therefore;

The number of wall paper border rolls required = 42 ft./(5 yd.) = 42 ft./(15 ft.) = 2.8 rolls

Therefore, we round up to get the number of wall paper border rolls needed as 3 rolls of wall paper borders.

im too

good luck

im lucky cat

Answer:

I THINK it's A

Step-by-step explanation:

Step-by-step explanation:

A case of paper cups costs $408 / 17 = $24.

5 more cases => 22 cases of paper cups total.

Hence the total cost will be 22 * $24 = $528.

Answer:

$528

Step-by-step explanation:

We find the unit rate of the cost per case.

$408 / 17 cases = $24/case

Each case costs $24.

Adding 5 cases to 17 cases, the order will be for 22 cases.

22 cases * $24/case = $528

Answer: $528

Answer:

5

Step-by-step explanation:

Area of bedroom = 13 1/3 square yards

Area of bed = 2 2/3 square yards

Unit Rate = Area of bedroom / Area of bed

Unit Rate = (40 / 3 ÷ 8/3)

Unit Rate = 5

Answer:

Ghjurdvbjkhffgjiojjjggdtj

Step-by-step explanation:

Complete question is;

A group of biologists is surveying the mice population in a forest. The equation n=75⋅3t gives the total number of mice, n, t years since the survey began.

what does the number 3 mean in this situation.

1. the common difference

2. the total population

3. the common ratio

4. the slope

Answer:

3 is the common ratio

Step-by-step explanation:

We are given that the equation; n = 75⋅3^(t) gives the total number of mice, n, t years since the survey began.

Normally, formula when calculating population growth takes an exponential function;

n = n_o(e^(rt))

Or in this our case, it can be written as;

n = n_o((e^(r))^(t))

Comparing this with n = 75⋅3^(t), we can see that e^(r) = 3

Where r is the growth rate.

e is exponential constant.

Thus, we can say that 3 is the common ratio

Step-by-step explanation:

5×6'3n=20

30'3n=20

3n=20-30

3n/3= -10/3

n= -3

Answer:

-6

Step-by-step explanation:

6 into -7 + 36

-42+36=-6

Answer:

Step-by-step explanation:

steps are stated below

step 1

6(-12+5)-3(-12)  equation

step 2

6(-12+5)-3(-12)  simplify the equation

(6)(-7)−(3)(-12)

-42-(3)(-12)

step 3

-42-(3)(-12)  times the number in the brackets

-42-(-36)

-6

1.Given, x={p,q}.

Now, possible subsets of x are ϕ,{p},{q},{p,q}.

2.if A = fa b, c. d, e and B of a, e, i, o, u. list the elements of B - A and also show it in a venn diagram by

shading

hope it helps

merryyyy Christmassss

happy holidays

have a great day/night

You should mark them brainliest

Answer:

If we say the circumference is 1600 pi, and this is equal to pi times the diameter, we can just divide both sides by pi to get the diameter, which is going to be 1600.

Step-by-step explanation:

Circles are all similar, and "the circumference divided by the diameter" produces the same value regardless of their radius. This value is the ratio of the circumference of a circle to its diameter and is called π (Pi).

Answer:

That will be 1/14 points

Step-by-step explanation:

==============================================

Work Shown:

1/4 = 0.25

1 & 1/4 = 1 + 1/4 = 1 + 0.25 = 1.25

The stock dropped by 1.25 points each day for 5 days

It dropped a total of 5*1.25 = 6.25 = 6 & 1/4 points.

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

Alternative method:

5*(1 & 1/4) = 5*(1 + 1/4)

5*(1 & 1/4) = 5*1 + 5*(1/4)

5*(1 & 1/4) = 5 + 5/4

5*(1 & 1/4) = 5*(4/4) + 5/4

5*(1 & 1/4) = 20/4 + 5/4

5*(1 & 1/4) = (20+5)/4

5*(1 & 1/4) = 25/4

5*(1 & 1/4) = (24+1)/4

5*(1 & 1/4) = 24/4 + 1/4

5*(1 & 1/4) = 6 + 1/4

5*(1 & 1/4) = 6 & 1/4

We get the same answer as before.

Answer:

C

Step-by-step explanation:

(x-9)3 on edge

Answer:

From least to greatest:

13:6 ; 9:4 ; 5:2 ; 20:7 ; 10:3

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