What does r = in r=__x__?

Answer:

Original mean= 926/8= 115.75

New mean= 105+120+84+95+100+150+132+140+140+140+140+140 = 1486/12 = 123.83 repeater

For the first part :)

Answer:

114 in²

Step-by-step explanation:

The answer isround cake

- 82.42 in²rectangular cake - 114 in²

Round cake:

d = 7 inr =

d/2 = 7 in / 2 = 3.5 inh = 2 in

The surface are of a cylinder is:

A = 2πr² + 2πrh

The surface are of the round cake (which is actually a cylindrical cake) excluding the bottom is:

A = 2πr² + 2πrh - πr²A = πr² + 2πrh

A = 3.14 * 3.5² + 2 * 3.14 * 3.5 * 2    = 38.46 + 43.96    = 82.42 in²

Rectangular cake:w = 6 inl = 9 inh = 2 in

The surface are of a rectangle is:

A = 2wl + 2wh + 2lh

The surface are of the rectangular cake excluding the bottom is:A =

2wl + 2wh + 2lh - wlA = wl + 2wh + 2lhA = 6 * 9 + 2 * 6 * 2 + 2 * 9 * 2    = 54 + 24 + 36    = 114 in²

THIS MIGHT NOT BE WHAT YOU ARE LOOKING FOR AND MIGHT NOT BE CORRECT! READ FIRST!

The answer is A. The slope of the line is rise/run = 4/2 = 2.1. This means that each kilometer costs $2.10. The y-intercept is 2.1, which means that the initial fee is $2.10. So the correct statement is: The slope is 2.1. This means that each kilometer costs $2.10.

The other statements are incorrect. The slope is not 5, so each kilometer does not cost $5. The y-intercept is not 5, so the ride does not last 5 kilometers. The y-intercept is the value of the function when the input is 0, which in this case is the initial fee of $2.10.

Answer:

Yes

Step-by-step explanation:

It's 12/5 or also 2.4

Answer:

yes

Step-by-step explanation:

remember how to do fraction operations :

a/b / c/d = a×d / b×c

that is why you can also say it is the same as the multiplication with the upside-down fraction

a/b / c/d = a/b × d/c = a×d / b×c

in your case here

4/5 / 1/3 = 4/5 × 3/1 = 12/5

and that is definitely greater than 1.

Answer:

c all real values of x such that x=/ 7

Step-by-step explanation:

Answer:

A. x = -6
B. x = 15

Step-by-step explanation:

A.

\(\frac{x}{3}-5=-7\\\frac{x}{3}-\frac{15}{3}=-7\\\frac{x-15}{3}=-7\\x-15 = -7*3\\x-15=-21\\x=-21+15\\x=-6\)

B.

\(\frac{x}{2}-5=2.5\\\frac{x}{2}-\frac{10}{2} = 2.5\\\frac{x-10}{2}=2.5\\x-10= 2.5*2\\x-10=5\\x=5+10\\x=15\\\)

I hope this helps brother! :D

Answer: b,

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

It shows 120 for both the sides of the angle, which makes it parallel.

B is wrong because they don't have the same angle measure.

C is wrong because they don't have the same angle measure.

D is also wrong, because it shows both the measures of angle A, and you don't know what angle B is.

Hope this helps!

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Answer:

d=27 ft

Step-by-step explanation:

U need use Thales's theorem:

height of smaller triangle (15)divide by side (40) is eaqul to height of bigger triangle (d) divide by side (72).

\(\frac{15}{40} =\frac{d}{72} \\40*d=15*72\\d=\frac{15*72}{40} \\d=27\)

u can add 10 plus 8 u can get 18 or if u get other number u wrong

Answer:

hello

Thanh have 3,5 meters of fabric. i can say

3,5/1 for it.

and i can say 35/10

now he used three-fourths of a meter of fabric.

its equal to 3/4

now i have to remove 3/4 from 35/10.

35/10 - 3/4

denominators have to be same thats why im expanding them to 20.

35×2/10×2 = 70/20

3×5/4×5 = 15/20

now i can remove 15/20 from 70/20!

70/20 - 15/20 = 55/20

we cannot see 55/20 in the options.

thats why im dividing them with 5.

55÷5= 11 20÷5=4

the answer is 11/4

11/4 = 2and 3/4

so its option 2

good luck(:

Answer:

1: 1/6 or 0.16666...      2: 1/10 or 0.1       3: 1/5 or 0.2

Step-by-step explanation:

1:    1/4x2/3    1x2=2     4x3=12    2/12=1/6

2:   3/5x1/6    3x3=3     5x6=30   3/30=1/10

3:   2/5x1/2      2x1=2    5x2=10    2/10=1/5

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Answer:x=−

3150

899

​

≈−0.285396825

Step-by-step explanation:

315x−

20

7

​

+

4

1

​

=−90

Least common multiple of 20 and 4 is 20. Convert −

20

7

​

and

4

1

​

to fractions with denominator 20.

315x−

20

7

​

+

20

5

​

=−90

Since −

20

7

​

and

20

5

​

have the same denominator, add them by adding their numerators.

315x+

20

−7+5

​

=−90

Add −7 and 5 to get −2.

315x+

20

−2

​

=−90

Reduce the fraction

20

−2

​

to lowest terms by extracting and canceling out 2.

315x−

10

1

​

=−90

Add

10

1

​

to both sides.

315x=−90+

10

1

​

Convert −90 to fraction −

10

900

​

.

315x=−

10

900

​

+

10

1

​

Since −

10

900

​

and

10

1

​

have the same denominator, add them by adding their numerators.

315x=

10

−900+1

​

Add −900 and 1 to get −899.

315x=−

10

899

​

Divide both sides by 315.

x=

315

−

10

899

​

​

Express

315

−

10

899

​

​

as a single fraction.

x=

10×315

−899

​

Multiply 10 and 315 to get 3150.

x=

3150

−899

​

Fraction

3150

−899

​

can be rewritten as −

3150

899

​

by extracting the negative sign.

x=−

3150

899

​

Answer:

n = 10 and n = 16

Step-by-step explanation:

Using the rules of exponents

\(a^{m}\) × \(a^{n}\) = \(a^{(m+n)}\) , then

\(4^{8}\) × 4² = \(4^{(8+2)}\)

= \(4^{10}\) , thus n = 10

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

\((a^m)^{n}\) = \(a^{mn}\) , then

\((3^2)^{8}\)

= \(3^{2(8)}\)

= \(3^{16}\) , thus n = 16

Answer:

It's the green one, and the percentage is 2/5 (40%)

Step-by-step explanation:

Explanation: There were 600 total tickets sold, 240 of them being for the Saturday performance. The question is asking what percent of the total tickets sold were for the Saturday performance, so you do 240/600 which is 2/5 (0.40, 40%). As for the diagram, you kinda just figure out which one has the "?" 2/5ths along the way of the diagram. Hope this helps for your question, and explain the problem for future reference.

Answer:

a) is true

and you did not state question D well

Step-by-step explanation:

Answer:

A function is a mathematical relation in which each input (domain value) is associated with exactly one output (range value). In other words, for a relation to be a function, each input can have only one corresponding output. Let's analyze the given pairings:

(a person’s age in years, that same person’s height in inches) - This can be a function because one person's age in years should correspond to a single height in inches.

(a person’s weight in pounds, that same person’s height in inches) - This can also be a function because one person's weight in pounds should correspond to a single height in inches.

(a person’s height in centimeters, that same person’s height in inches) - This can be a function because one person's height in centimeters should correspond to a single height in inches.

(a person’s telephone number, that same person’s height in inches) - This may not necessarily be a function. It's possible for two different people to have the same height in inches but different telephone numbers.

So, the pairings that always describe a function are:

(a person’s age in years, that same person’s height in inches)

(a person’s weight in pounds, that same person’s height in inches)

(a person’s height in centimeters, that same person’s height in inches)

These three pairings meet the criteria of a function, where each input corresponds to a unique output.

The pairing that always describes a function is option C. (a person’s height in centimeters, that same person’s height in inches)

A pairing describes a function when each unique input (domain element) is associated with exactly one unique output (range element). In other words, there should be no ambiguity or multiple outputs for a single input. Let's analyze the given pairings:

1. (a person’s age in years, that same person’s height in inches): This pairing may not always describe a function because multiple people can have the same age, but they might have different heights. So, there can be multiple outputs for the same input (age).

2. (a person’s weight in pounds, that same person’s height in inches): Similar to the first pairing, this may not always describe a function because different people can have the same weight but different heights.

3. (a person’s height in centimeters, that same person’s height in inches): This pairing describes a function because for each unique height in centimeters, there is only one corresponding height in inches.

4. (a person’s telephone number, that same person’s height in inches): This pairing may not always describe a function because multiple people can have the same telephone number, but they might have different heights. So, there can be multiple outputs for the same input (telephone number).

So, the pairing that always describes a function is: (a person’s height in centimeters, that same person’s height in inches)

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Answer:

a. \(308=2*2*7*11\)

  \(616=2*2*2*7*11\)

  \(660=2*2*3*5*11\)

b. GCF \(=11\)

Answer:

The first graph is correct.

Step-by-step explanation:

After 4 days, there are 22 rose blooms left -------(4, 22)

and after 8 days, there are 10 rose blooms left -----(8 , 10)

Equation of straight line:

y =ax +b

input (4, 22) and (8, 10)

22 = 4a + b  ----(1)

10 = 8a +b  ------(2)

solve to find a , b

(2) - (1)

-12 = 4a, a= -3

find b, b = 34

Equation is : y= -3x + 34

When you set x = 0, y is 34.

The first graph is correct.

Answer:

value of (b) will be: 9

Step-by-step explanation:

Answer:

b = 9

Step-by-step explanation:

(-3x² + 5x - 2) - 2(x² - 2x - 1) =

= -3x² + 5x - 2 - 2x² + 4x + 2

= -5x² + 9x

= ax² + bx + c

a = -5; b = 9; c = 0

Answer: b = 9

Answer: The answer is choice B, C, and D

Step-by-step explanation:

Substitute the largest number in every set to see if it is a solution to the inequality.

Answer:

The absolute value of 15.3 is the distance from 15.3 to zero on a number line.

The absolute value of 15.3 is positive.

Answer:

B is the only one that makes sense I believe. About putting your pride aside to ask for help.

Step-by-step explanation:

I didn't read about anyone "helping themselves" before helping others and C is not true, and its unlikely there was no theme at all in the passage.

Answer:

The correct answer is A

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Answer:

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Step-by-step explanation:

The ratio of the blue paint to that of the total paint in the mixture containing 6 cups of red paint and 10 cups of blue paint is Option-B  5:8.

What is ratio?

To compare two or more numbers, mathematicians use the phrase "ratio." It works as a tool for comparison, demonstrating how large or small a sum is in contrast to another. In a ratio, we can use the fractional rules compare two amounts. The divisor is referred to as the "consequent" in this instance, while the dividend is the "antecedent." How much of one quantity is in the other can be found by comparing two amounts of the same unit and calculating the ratio. Ratios can be categorised into two groups. Part to part ratio is the opposite of part to whole ratio. A two distinct things or groupings are related to one another as shown by the part-to-part ratio.

Given that there are two types of paint & its volume:

Red Paint=volume 6 equal cups

Blue Paint=volume 10 equal cups

Total mixture= volume 16 equal cups

Ratio of volume of blue paint to total mixture of both red and blue paint:

Blue paint:Total paint = 10 : 16

                                    =  5 : 8

The correct option is B, 5:6

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Refer to the attached figure below.

Answer:

Hey mate.....

Step-by-step explanation:

This is ur answer.....

x = 180 - (40 + 25)

x = 180 - 65

y = 180 - 40

Hope it helps,

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Answer:

115°

Step-by-step explanation:

X + 40+25=180

X+65=180

X=180-65

X=115°

Answer:

10+10 =20% i mite be wrong but that is ok

Step-by-step explanation:

Answer: 5 length & width

Step-by-step explanation:

Since this is a square all sides would be the same length & width which would be 5 because each side is symmetric. So if you do 5 times as many sides as there is (5 x 4) it would give you 20

So the LENGTH of EACH side is 5 and the AREA in total or PREMIETER would be 20 all together.

(hope this helps)