Divide. Give the exact answer, written as a decimal. 0.05 4.32

Answer:

3c=3x+6

Step-by-step explanation:

-2+3c=2x+6+x

-2+3c=3x+6      First combine the x on the right side.

-2+3c=3x+6

+2            +2    Add 2 to both sides to eliminate 2 on the left side.

3c=3x+6

Answer:

a)

90% confidence interval for the mean grading time of all composition papers.

(12.47981 , 13.52019)

b)

Appropriate inequality

The interval is  ( 12.47981 < μ < 13.52019)

Step-by-step explanation:

Explanation:-

a)

Given sample size 'n' = 40

Mean of the sample = 13 minutes

standard deviation = 2 min

level of significance = 0.10 or 90%

90% confidence interval for the mean grading time of all composition papers.

\(( x^{-} - Z_{0.1} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.10} \frac{S.D}{\sqrt{n} } )\)

 \(( 13 - 1.645 \frac{2}{\sqrt{40} } , 13 +1.645 \frac{2}{\sqrt{40} } )\)

( 13 - 0.52019 , 13 + 0.52019)

(12.47981 , 13.52019)

b)

The interval is  ( 12.47981 < μ < 13.52019)

Quadratic equations is another name for them. ax² + bx + c = 0 is the quadratic equation's general form.

A polynomial of degree two in one or more variables is referred to as a quadratic polynomial in mathematics. A polynomial function that is defined by a quadratic polynomial is known as a quadratic function.

A second-degree polynomial equation, which must contain at least one squared component, is what is known as a quadratic. Quadratic equations is another name for them. ax² + bx + c = 0 is the quadratic equation's general form.

A parabola is a curved form that represents the graph of a quadratic function. A parabola's vertex is one of its focal points. Its graph's highest or lowest point is where it is. Consider it similar to the parabola's endpoint.

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Answer:

$150

Step-by-step explanation:

3+10+30+100+7=150$

Enjoy you have lot of money. :-D

Answer:

-1/2

Step-by-step explanation:

Answer:

x = 6

Step-by-step explanation:

x² - 12x + 36 ≤ 0

(x - 6)(x - 6) ≤ 0

(x - 6)² ≤ 0

x - 6 = 0

x = 6

es el único valor que cumple la condición, cualquier otro sera mayor que 0

1 From the given information, no determination can be made as to whether the parallelogram is a rhombus, a rectangle, or a square.

2 The reason for the determination made in the previous step is A. From the given information, no determination can be made as to whether the parallelogram is a rhombus, a rectangle, or a square.

The diagonals of a parallelogram bisect each other, but this is true for all parallelograms, regardless of whether they are squares, rectangles, or rhombuses.

Therefore, the given information is not sufficient to determine whether the parallelogram is a rhombus, a rectangle, or a square.

In conclusion, from the given information, no determination can be made as to whether the parallelogram is a rhombus, a rectangle, or a square.

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Average speed of the car will be the total distance traveled in the total time. Taking distance travelled as 150 in 5 seconds we have average speed as. 30×1=30 m

Answer:

13.375

Step-by-step explanation:

13+3/8=13+0.375

therefore

ans

=13.375

Answer

616

Step-by-step explanation:

So for every 5 fruits he will sell 3 vegtables. if we divde 1848 by 3 we get 616.

Answer:

a) 3.5

b) 3.33

c) \(6 - 6\left(\begin{array}{ccc}5\\6\end{array}\right)^{10}\)

Step-by-step explanation:

As given,

A fair die is rolled 10 times

a)

Expected value of Sum of the number in 10 rolls = \(\frac{1}{6}(1+2+3+4+5+6) = \frac{21}{6}\)

                                                                                = 3.5

∴ we get

Expected value of Sum of the number in 10 rolls = 3.5

b)

Ley Y : number of multiples of 3

Y be Binomial

Y - B(n = 10, p = \(\frac{2}{6}\) )

Now,

Expected value = E(Y) = np = 10×\(\frac{2}{6}\)  = 3.33

c)

Let m = total number of faces in a die

⇒m = 6

As die is roll 10 times

⇒n = 10

Now,

Let Y = number of different faces appears

Now,

Expected value, E(Y) = m - m\(\left(\begin{array}{ccc}m-1\\m\end{array}\right)^{n}\)

                                  = \(6 - 6\left(\begin{array}{ccc}6-1\\6\end{array}\right)^{10} = 6 - 6\left(\begin{array}{ccc}5\\6\end{array}\right)^{10}\)

In this exercise we have to use probability knowledge to calculate the times the numbers of a roll, in this way we have to:

a) \(3.5\)

b) \(3.33\)

c) \(6-6\left[\begin{array}{cc}5\\6\2\end{array}\right] ^{10}\)

Given that a fair die is rolled 10 times:  

a) Expected value of Sum of the number in 10 rolls  :

\(\frac{1}{6} (1+2+3+4+5+6)= \frac{21}{6} = 3.5\)                                                                            

b) Using the formula of the binomial that is represented by:

\(Y - B(n = 10, p = \frac{2}{6})\)

Expected value:  \(E(Y) = np = (10)(\frac{2}{6} ) = 3.33\)

c) Looking at the 10 times the roll does, we have that it will be. Let m = total number of faces in a die   that represents m  = 6, as die is roll 10 times that represents n = 10. Now,  Expected value:

\(= E(Y) = m - m \left[\begin{array}{cc}m-1\\m\\ \end{array}\right] \\= 6-6\left[\begin{array}{cc}5\\6\2\end{array}\right] ^{10}\)

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c=8

Hope it helps Hve a nice day

Answer:

c=8

Step-by-step explanation:

\(28+c=36\\ 36-28=8\\ c=8\)

The equilateral triangle ABC have a side length of 2 units of the radius length of the circle tangent to the line AB.

An equilateral triangle have all its side lengths equal so;

line AB = line BC = line AC

At points B and C where the lines AB and AC are tangent to the circle is the a side length BC of the equilateral triangle

Line BC form the diameter of the circle which is 2 radius of the circle so;

line BC = 2 × radius of the circle

line BC = 2 × 1

line BC = 2

Therefore, the side length of the equilateral triangle is 2 units of the radius of the circle tangent at point B and C.

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Step-by-step explanation:

y=kx

25= k(-5)

k= -5

y= -5x

y = -5 ×3 = -15

Answer:

Domain are all values of x, or the inputs, of a function

Range is all values of y, or the outputs, of a function

Step-by-step explanation:

Answer:

Domain are all values of x, or the inputs, of a function

Range is all values of y, or the outputs, of a function

Step-by-step explanation:

Answer: -14/5, -2.25, 1 1/4, 3/2

Step-by-step explanation:

Answer:

-14/5, -2.25, 1 1/4, 3/2

Step-by-step explanation:

I double-checked, and I believe it's correct.

P.S, if I could get Brainliest, it'd mean a lot to me! Thanks!

The answer is 54.9

B=tan (98/69) B=54.8513 = 54.9

Step-by-step explanation:

a. d = m/v

m = d × v

b. m = d × v

= 5.01g/cm × 1.2cm

= 6.012g

hopefully this makes sense

:)

The mass of pyrite sample in grams will be -  6.012 grams

We have a marble whose volume is 1.2 cubic centimeter and density is 5.01 g/cm. A relation - density d of a substance is given by the formula

d = m/v is also provided.

We have to determine its mass.

The solid state of matter has the highest density because the constituent particles are fixed and not allowed to move inside the solid. Moreover, they are bonded very close to each other.

According to the question -

Density - 5.01g/cm

Volume - 1.2cm.

Using the formula mentioned above, we get -

\($\rho = \frac{M}{V}\)

Rearranging the formula, we get -

M = ρV

M = 5.01 x 1.2 = 6.012 grams

Hence, the mass of pyrite sample in grams will be -  6.012 grams

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Answer:

x =1

Step-by-step explanation:

\(6x-3\left(6-5x\right)+3x=10-4\left(2-x\right)\\\\Group\:like\terms\\6x+3x-3\left(-5x+6\right)=10-4\left(2-x\right)\\\\Add\:similar\:elements:\:6x+3x=9x\\9x-3\left(-5x+6\right)=10-4\left(2-x\right)\\\\Expand\:-3\left(-5x+6\right):\quad 15x-18\\9x+15x-18=10-4\left(2-x\right)\\\\\mathrm{Add\:similar\:elements:}\:9x+15x=24x\\24x-18=10-4\left(2-x\right)\\\\Expand\:10-4(2-x):4x+2\\24x-18=4x+2\\\\Add\:18\:to\:both\:sides\\24x-18+18=4x+2+18\\\\Simplify\\24x=4x+20\\\)

\(\mathrm{Subtract\:}4x\mathrm{\:from\:both\:sides}\\24x-4x=4x+20-4x\\\\Simplify\\20x=20\\\\\mathrm{Divide\:both\:sides\:by\:}20\\\frac{20x}{20}=\frac{20}{20}\\\\Simplify\\x=1\)

9514 1404 393

Answer:

  32

Step-by-step explanation:

Use the formula.

  \(a_2=a_1\times4=2\times4=8\\\\a_3=a_2\times4=8\times4\\\\\boxed{a_3=32}\)

Answer:

534

Step-by-step explanation:

The maximum distance that the sailοr can see frοm the deck οf the ship is 0 miles.

A special kind οf relatiοn knοwn as a functiοn is οne in which each input has precisely οne οutput. In οther wοrds, the functiοn generates exactly οne value fοr each input value. Because οne is mapped tο twο different values, the abοve graph depicts a relatiοnship rather than a functiοn. Hοwever, if οne were instead mapped tο a single value, the relatiοnship mentiοned abοve wοuld becοme a functiοn.

Additiοnally, οutput values can be equal tο input values. We knοw that the square rοοt functiοn is an increasing functiοn, which means that the value οf the functiοn increases as the input value increases.

Therefοre, tο find the maximum value οf the functiοn, we need tο find the maximum value οf h.

Assuming that the lighthοuse is οn the hοrizοn, which is apprοximately 3 miles away, we can use the Pythagοrean theοrem tο find the height οf the lighthοuse:

\(h^2 = (3)^2 - (15)^2h^2 = 9 - 225h^2 = -216\)

Since we cannοt take the square rοοt οf a negative number, there is nο real height fοr the lighthοuse that wοuld make it visible frοm a ship 15 feet abοve the water level.

Therefοre, the maximum distance that the sailοr can see frοm the deck οf the ship is 0 miles.

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Answer:

6/8

Step-by-step explanation:

simplify and find the slope

Answer:

B- 5/16 sq ft

Step-by-step explanation:

Their are 48 tiles total

15/48 are shaded so,

48 and 15 both go into 3,

15÷3= 5

48÷3=16

So then answer would be 5/16 sq ft

This are the right steps

Step 1: first you divide the both size by 7 because there is 7 a's

7a/7 = 28/7

Step 2: You solve the equation

7a/7= a. 28/7 = 4

So, the answer is a = 4

not 7 = 4

Carly did a mistake in Step 1, as she divides the two sides of the equation by different quantities (she divided the left side of the equation by a and the right side of the equation by 7), but we are supposed to follow the same operations on both sides of the equation. Hence, option A: Step 1 is the right choice.

To solve linear equations in one variable, we isolate the variable to one side of the equation and simplify the other side to get the solution for the equation.

In the process of isolation, the operations performed on one side of the equation have to be performed on the other side too.

In the question, we are informed that Carly tried to solve an equation step by step. 7a=28 Step 1: 7a/a = 28/7 Step 2: 7 = 4.

We are asked to find the mistake that Carly did in solving the equation.

We first try to solve the equation: 7a = 28.

Step 1: 7a/7 = 28/7 {Dividing both sides by 7}

Step 2: a = 4 {Simplifying}.

Thus, we can see that Carly did a mistake in Step 1, as she divides the two sides of the equation by different quantities (she divided the left side of the equation by a and the right side of the equation by 7), but we are supposed to follow the same operations on both sides of the equation. Hence, option A: Step 1 is the right choice.

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When dividing a number by 10, the decimal point is moved one place to the left.

What is the arithmetic operation?

Arithmetic operations involve the study of numbers, the operation of numbers that are useful in all the other branches of mathematics. It basically comprises operations such as Addition, Subtraction, Multiplication, and Division.

When dividing a number by 10, the decimal point is moved one place to the left.

For example, if we divide 345.67 by 10, the result is 34.567.

Similarly, if we divide 345.67 by 100, the result is 3.4567.

If we divide 345.67 by 1000, the result is 0.34567.

In general, if we divide a number by 10^n (where n is a positive integer), the decimal point is moved n places to the left.

For example, if we divide 345.67 by 10^4, the result is 0.034567.

Hence, When dividing a number by 10, the decimal point is moved one place to the left.

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Answer: 48$

Step-by-step explanation:

20% of 40$ is 8$ so its 48$

Answer:

what the other guy said, 48$

Step-by-step explanation:

Answer:

It costs 50

Step-by-step explanation:

I think this is right

The  expressions equivalent to (x/3x) * (8x/3x) is 8/9 and 8x² / 9x².

Equivalent fractions are those that, despite their visual differences, reflect the same value given the equation.

By multiplying the numerator and denominator of each fraction by the same number, we can determine the equivalent fraction for each fraction.

(x/3x) * (8x/3x)

Multiplying the numerator and denominator:

= (x * 8x)/(3x * 3x)

= 8x² / 9x²

Further simplifying the equation:

= 8/9

The  expressions equivalent to (x/3x) * (8x/3x) is 8/9 and 8x² / 9x²

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