Pls help can someone explain me how to do this?!?!?

Answer:

Step-by-step explanation:

5/9x + 7 = 2/3

9(5/9x + 7 = 2/3)

5x + 63 = 6

The equation without fraction is 5x + 57 = 0.

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 3 = 6 is an equation.

We have,

7 + (5/9)x = 2/3

Subtract 2/3 on both sides.

7 + (5/9)x - 2/3 = 0

Subtract 7 on both sides.

(5/9)x - 2/3 = -7

Find LCM of 9 and 3.

(5x - 6)/9 = -7

5x - 6 = -63

5x - 6 + 63 = 0

5x + 57 = 0

Thus,

The equation is 5x + 57 = 0

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There are 792 hands with only face cards, 24 hands with a full house of aces and eights, and 966,966,558 hands with exactly 2 hearts.

(a) There are 12 face cards in a standard deck (4 jacks, 4 queens, and 4 kings). Since there are 4 suits for each face card, the number of hands with only face cards is given by the number of ways to choose 5 face cards from 12, which is:

\(${{12}\choose{5}} = 792$\)

(b) To form a full house of aces and eights, we need to choose 3 aces from the 4 aces in the deck, and 2 eights from the 4 eights in the deck. The number of ways to do this is:

\(${{4}\choose{3}}{{4}\choose{2}}=4\times 6=24$\)

(c) There are 13 hearts in a standard deck. To form a hand with exactly 2 hearts, we need to choose 2 hearts from the 13 hearts in the deck, and 3 non-heart cards from the 39 non-heart cards in the deck. The number of ways to do this is:

\($ {{13}\choose{2}}{{39}\choose{3}} = 11,758\times 82,251 = 966,966,558$\)

Therefore, there are 792 hands with only face cards, 24 hands with a full house of aces and eights, and 966,966,558 hands with exactly 2 hearts.

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Answer:

A - Decrease a number by 30% is the same as multiplying by 70%.

Step-by-step explanation:

This statement is incorrect. Decreasing a number by 30% means that the number will be reduced by 30% of its original value. For example, if the original number is 100, decreasing it by 30% would give you 100 - 30% * 100 = 100 - 30 = 70. On the other hand, multiplying a number by 70% would increase it by 70% of its original value, which is a different operation.

C - Decrease a number by 0.30 is the same as multiplying by 0.70.

This statement is also incorrect. Decreasing a number by 0.30 means subtracting 0.30 from the original number, while multiplying by 0.70 means multiplying the original number by 0.70. These are two different operations that will result in different results.

Answer:

I don't see the picture of the problem

Answer:

r= -40/9 or r=-4 4/9

Step-by-step explanation:

You're welcome :)

One way that adding and subtracting polynomials is similar to adding and subtracting whole numbers and integers is that both operations follow the same basic rules for combining like terms.

In both cases, you add or subtract the coefficients (numbers) of the same type of term or same variable with the same exponent.

Just like adding and subtracting integers, you also need to consider the signs (+ or -) when combining the terms.

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The angle pull for a raceway in the horizontal dimension can be calculated using the formula:

Angle Pull = (Sum of Other Raceways / Largest Raceway) * 100

Given that the trade size of the largest raceway is 3 inches and the sum of the other raceways in the same row on the same wall is 4 inches, we can substitute these values into the formula:

Angle Pull = (4 / 3) * 100

Angle Pull ≈ 133.33

Therefore, the angle pull for the raceway in the horizontal dimension is approximately 133.33 degrees.

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Answer:

A

Step-by-step explanation:

I hope that helps

The simplified value of the given expression is - 117. Therefore the correct answer is option A.

It stands for B - Brackets, O - order of power, D -  division, M - multiplication, A - addition, S - subtraction.

Solving the expression

\(\frac{-(-4)(-6)-3/5(10+15)}{1/3} \\=\frac{-(24)-3/5(25)}{1/3}\\=\frac{-(24)-3(5)}{1/3}\\= \frac{-(24)-(15)}{1/3}\\= \frac{(-39)}{1/3}\\= -39 \times 3\\= -117\)

Hence the simplified value of the given expression is - 117. Therefore the correct answer is option A.

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The minimum percentage of commuters with commute times between 3 minutes and 51.6 minutes, we can use Chebyshev's Inequality with k = (51.6 - 27.3) / 8.1. The resulting percentage is at least (1 - 1/k^2).

Chebyshev's Inequality states that for any distribution (regardless of its shape), at least (1 - 1/k^2) of the data falls within k standard deviations of the mean, where k is any positive constant greater than 1.

For the first question, the range between $2.94 and $3.18 corresponds to 1 standard deviation from the mean price of gasoline stations. Therefore, using Chebyshev's Inequality, at least (1 - 1/1^2) = 0% of the gasoline stations would fall within this range.

For the second question, within 1.5 standard deviations of the mean, we can calculate the minimum percentage by using k = 1.5 in Chebyshev's Inequality. This gives us at least (1 - 1/1.5^2) = 55.56% of the commuters in Boston having a commute time within 1.5 standard deviations of the mean.

To determine the commute times within 1.5 standard deviations of the mean, we can calculate the range by multiplying the standard deviation (8.1 minutes) by 1.5 and subtracting this value from and adding it to the mean. So, the range would be (27.3 - 1.5 * 8.1) to (27.3 + 1.5 * 8.1), which is approximately 15.15 minutes to 39.45 minutes.

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Answer:

-5x - 24

Step-by-step explanation:

3(2x − 8) – 11x =

Distribute the 3.

= 6x - 24 - 11x

Combine like terms.

= -5x - 24

Answer: 120,000 cm

Step-by-step explanation:

1.2 km = (1.2x1000) m = (1.2x1000x100) cm = 120,000 cm

Answer:

0.90x + 1.45y

Step-by-step explanation:

You put the vaiable with the price and add the 2 together to get the total.

Have a great day!

Please rate!

Answer:

It would cost 3.6 dollars to by 4 bags of trail mix and 4.35 dollors to by 3 packs of chip

Step-by-step explanation:

Let x = number of bags of trail mix

Let y = number of bags of chips

0.90x + 1.45y = the total amount

( plot the number in )
0.90(4) + 1.45(3) = the total amount

( now multiply 0.90 by 4 and 1.45 by 3 )

3.6 + 4.35

Therefore it would cost 3.6 dollars to by 4 bags of trail mix and 4.35 dollars to by 3 packs of chips

Hope it helps!

Answer:

$53

Step-by-step explanation:

Hope this helped you!! Find 6% of 50 then add it to 50. Give brainliest

Answer:

64

Step-by-step explanation:

because the formula for the volume of a cube is edge (4) to the power of 3

4 to the power of 3 is 64

By solving the given equation f(x) = \(x^{2} +3x-40\), the zeroes are -3 and 5.

To solve the given equation we have to do the factorization.

What is factorization: Factorization is the method of writing numbers as the product of their factors or divisors.  In other words, we can say finding what to multiply together to get an expression.

To do the factorization, we have to follow the steps as shown below:

 \(x^{2} +3x-40\) \(= 0\)

\(-40 = 8 * -5\\\)                        [ multiplication of 8 and -5 is -40]

\(x^{2}+8x-5x -40\) \(= 0\)

\(x(x+8) -5(x+8)\) \(= 0\)

\((x-5)(x+8)\) \(= 0\)

\(x = 5\)   and  \(x = -8\)              [ The roots or zeroes]

From the above solution, we can conclude that the zeros of the given function \(x^{2} +3x-40\) are 5 and -8.

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Answer:

-56\(x^{11}\)

Please mark brainliest if you can, thank you

Step-by-step explanation:

Answer:

−56x^11        (The 11 is an exponent)

I hope I helped

Answer:

see below

Step-by-step explanation:

h(x) = 2x-10

Let x=3

h(3) = 2*3 -10

      = 6-10

      =4

Let x=-3

h(-3) = 2*-3 -10

      = -6-10

      =-16

Answer:

21.9

Step-by-step explanation:

When rounding to the nearest tenth, we are rounding to 1 decimal place.

If the number in the hundredth place is 5 or more, we round up.

If the number in the hundredth place is less than 5, we round down.

17.26 rounded to the nearest tenth is 17.3

as 6 is in the hundredth place, so we round 2 tenths up to 3 tenths.

4.556 rounded to the nearest tenth is 4.6

as 5 is in the hundredth place, so we round 5 tents up to 6 tenths.

Therefore, 17.3 + 4.6 = 21.9

Answer:

F(-1) = -13

Step-by-step explanation:

If F(-1) then that means x = -1

4 times -1 is -4 and -4 plus -9 is -13

Enchanted Rock State Natural Area is located at latitude 30.506130 and longitude -98.820064. The geographic coordinates of Enchanted Rock State Natural Area in Fredericksburg, United States, are 30° 30' 22.068" N and 98° 49' 12.2304" W. Enchanted Rock State Natural Area falls under the Mysterious Sites category.

The standard datum used by default for GPS devices used for commercial and recreational purposes is WGS84. GPS users are advised to always verify the datum of the maps they are utilising.

WGS 84, also known as the datum, is now in use by US forces.

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By the calculations below, there are 20 groups of 1/5 in 4.

To find out how many groups of 1/5 are in 4, we can use the concept of division of fractions.

Recall that dividing by a fraction is the same as multiplying by its reciprocal. So, we can rewrite the problem as:

4 ÷ 1/5

To find the reciprocal of 1/5, we flip the fraction:

1/5 → 5/1

Now, we can rewrite the division problem as multiplication:

4 ÷ 1/5 = 4 × 5/1

Multiplying across gives:

4 × 5/1 = 20

Therefore, there are 20 groups of 1/5 in 4.

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If the function is given as h(x)=3x-10 and j(x)=2x2 +1, the value of h(j(-3)) is 47.

A function is defined as a relationship between a group of inputs that each have one output. A function is a connection between inputs in which each input is associated to exactly one output. Functions are typically categorized into four categories. Based on Element: One to one Function, many to one function, onto function, one to one and onto function, into function. Quite often, when working on a project, a series of duties must be repeated with different input. To guarantee that the analyses are performed consistently, the code should be wrapped in a named function that is called each time it is required.

Here,

(h.j)(-3)=h(j(-3))

j(-3)=2x²+1

=2*(-3)²+1

=19

h(19)=3x-10

=3*19-10

=47

The value of h(j(-3)) will be 47 if function is given as h(x)=3x-10 and j(x)=2x^2 +1.

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The probabilities are 1. 27/50, 2. 3/4, 3. 31/100, 4. 25/46, 5. 25/48

What is probability ?

The area of mathematics known as probability deals with numerical descriptions of how likely it is for an event to happen or for a claim to be true. A number between 0 and 1 is the probability of an event, where, broadly speaking, 0 denotes the event's impossibility and 1 denotes its certainty.

A probability is a number that expresses the possibility or likelihood that a specific event will take place. Probabilities can be stated as proportions with a range of 0 to 1, or as percentages with a range of 0% to 100%.

A probability is the number of desired outcomes divided by the number of total outcomes.

Item 1:

54 out of 100 people prefer bacon, hence:

P = 54/100

  = 27/50

Item 2:

Out of 100 people, 54 prefer bacon, 21 prefer sausage but pancakes, hence 54 + 21 = 75 desired outcomes, hence:

P = 75/100

  = 3/4

Item 3:

31 out of 100 people prefer bacon and pancakes, hence:

P = 31/100

Item 4:

Out of 46 people that prefer sausage, 25 prefer french toast, hence:

P = 46 / 25

Item 5:

Out of 48 people that prefer french toast, 25 prefer sausage, hence:

P = 48 / 25

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Answer:

\(\frac{x-14}{2}=24\)

Step-by-step explanation:

In the given figure two secants are intersecting outside the circle.

Angle formed by these secants = 24°

Measure of arcs intercepted = x° and 14°

Formula to get the unknown chord is,

24° = \(\frac{1}{2}(x-14)\)

Therefore, equation (2) given in the equation bank will be used.

By further solving for the value of x,

24×2 = ( x - 14)

48 = x - 14

x = 48 + 14

x = 62°

Answer:

f(x) = (x - 3)(x - 9)

Step-by-step explanation:

The zeros of the function are 3 and 9.

f(x) = (x - 3)(x - 9)

Answer:

9 hours and 10 min

Step-by-step explanation:

have a good day

Answer:

12

Step-by-step explanation:

2a + 2b is 2 times a + b

Therefor, the answer will be 2 times the sum of a+b

6x2 = 12

The scale factor of the dilation of line segment ba for which the center of dilation is C, is 5.

Dilation of a figure, means the transformation of the figure. The factor by which the given figure dilated, called the scale factor of dilation.

Point c is the center of dilation. Line segment BA is dilated to create line segment b prime, a prime.  The image of the given problem is attached below. The length of CA is 4.

\(CA=4\)

The length of a prime is 16.

\(AA'=16\)

The new dimension will be,

\(CA'=CA+AA'\\CA'=4+16\\CA'=20\)

Now, the scale factor is the ratio of the new dimension to the original dimension. Thus, the scale factor of the dilation is,

\(r=\dfrac{20}{4}\\r=5\)

This will be the same for the line segment BA. Thus, the scale factor of the dilation of line segment ba for which the center of dilation is C, is 5.

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Answer:

the answer is 5

Step-by-step explanation:

D

The scale of measurement being used to classify the students in the introductory art class as art majors and non-art majors is nominal.

Nominal scales are used for categorical data, where the items being measured can be placed into categories or labels, but no order or ranking is implied. In this case, the students are being classified into two categories: art majors and non-art majors.

The students are being classified into two categories: art majors and non-art majors. These categories are mutually exclusive and exhaustive, meaning that every student in the class falls into one and only one of the two categories. There is no inherent order or ranking to the categories, and it is not meaningful to say that one category is greater or smaller than the other. This type of data classification is an example of nominal scale measurement.

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