HELP HELP HELP!!!
i need help with math pls help me.

Answer:

$8.75

Step-by-step explanation:

y = 6x + 19

71.50 = 6x + 19  Subtract 19 from both sides of the equation

52.50 = 6x Divide both sides by 6

8.75 = x

Answer:

A) -3/4

B) 1/4

Step-by-step explanation:

A) m = y2-y1 / x2-x1

B) rise / run

Hope this helps. Pls give brainliest.

Answer:

$12

Step-by-step explanation:

Half of $36 would be $18. $18 divided by 3 would be $6. $6 times 2 would be $12. Half comes from the 1/2 of money spent on Thursday. Dividing it by 3 comes from the remainder on Wednesday. We divide it by 3 since the denominator of 2/3 is 3. We then multiply it by 2, since the numerator in 2/3 is 2.

Given:

The expression is:

\(13-\dfrac{5}{y}\)

To find:

The description that matches the given expression.

Solution:

We have,

\(13-\dfrac{5}{y}\)

Here, \(\dfrac{5}{y}\) is describes as the quotient of five and a number and the minus sign describes the difference between 13 and the quotient.

So, the description that matches the given expression is "difference of thirteen and the quotient of five and a number".

Therefore, the correct option is C.

Answer:

the difference of thirteen and the quotient of five and a number

Step-by-step explanation:

Only if (C) p(-4) = 0 will x + 4 be the polynomial p's factor.

A factor is a number that completely divides another number.

To put it another way, if adding two whole numbers results in a product, then the numbers we are adding are factors of the product because the product is divisible by them.

There is therefore no residual after division.

The numbers you multiply together to obtain another number are called factors.

A factor is therefore another number's divisor.

So, this is only true if, and only if, x + 4 is a factor of the polynomial p.

x + 4 = 0

x = -4

Comply with the polynomial equation that is:

p(-4) = 0

Therefore, only if (C) p(-4) = 0 will x + 4 be the polynomial p's factor.

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Complete question:
If (x + 4) is a factor of polynomial p, which statement must be true?

A.p(4) = 0

B. p(-4) > 0

C. p(-4) = 0

D. p(4) < 0

True. The multiplicity of a root r of the characteristic equation of matrix A is indeed called the algebraic multiplicity of r as an eigenvalue of A.

The characteristic equation of a square matrix A is obtained by subtracting λI (where λ is an eigenvalue and I is the identity matrix) from A and taking its determinant. The roots of this equation are the eigenvalues of matrix A.

The algebraic multiplicity of an eigenvalue r refers to the number of times r appears as a root of the characteristic equation. In other words, it represents the multiplicity of r as a solution of the equation.

The algebraic multiplicity provides information about the behavior of the eigenvalue r within the matrix A. If the algebraic multiplicity of r is greater than 1, it means that r is a repeated eigenvalue and there exist multiple linearly independent eigenvectors associated with it. On the other hand, if the algebraic multiplicity is 1, r is a simple eigenvalue, indicating that there is only one linearly independent eigenvector corresponding to r.

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In the given system of linear inequalities,

Solutions: (1, 0), (-2, 5)

Non-solutions: (2, 0), (0, 1)

To graph the system of linear inequalities, we will plot the boundary lines for each inequality and shade the appropriate regions based on the given inequalities.

1. Graphing the inequality y < −x + 3:

To graph y < −x + 3, we first draw the line y = −x + 3. This line has a slope of -1 and a y-intercept of 3. We can plot two points on this line, for example, (0, 3) and (3, 0), and draw a dashed line passing through these points. Since y is less than −x + 3, we shade the region below the line.

2. Graphing the inequality y ≥ 2x − 1:

To graph y ≥ 2x − 1, we first draw the line y = 2x − 1. This line has a slope of 2 and a y-intercept of -1. We can plot two points on this line, for example, (0, -1) and (1, 1), and draw a solid line passing through these points. Since y is greater than or equal to 2x − 1, we shade the region above the line.

Now let's find two ordered pairs that are solutions and two that are not solutions.

Ordered pairs that are solutions:

- (1, 0): This point satisfies both inequalities. Plugging in the values, we get y = -1 and y ≥ 1, which are both true.

- (-2, 5): This point satisfies both inequalities. Plugging in the values, we get y = 7 and y ≥ 3, which are both true.

Ordered pairs that are not solutions:

- (2, 0): This point does not satisfy the first inequality y < −x + 3 since 0 is not less than -2 + 3.

- (0, 1): This point does not satisfy the second inequality y ≥ 2x − 1 since 1 is not greater than or equal to -1.

By graphing the system of linear inequalities and examining the solutions and non-solutions, we have:

Solutions: (1, 0), (-2, 5)

Non-solutions: (2, 0), (0, 1)

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The amount needed for retirement, rounded to the nearest cent, is option b. $398,407.85.

To determine the amount needed for retirement, we can use the present value formula for an annuity. In this case, we want to calculate the present value of the monthly withdrawals of $2,154 for 30 years, with a monthly interest rate of 5.1%.

First, we need to convert the interest rate to a monthly decimal rate. We divide 5.1% by 100 to get 0.051, and then divide it by 12 to get 0.00425.

Next, we use the formula: PV = PMT * (1 - (1 + r)^(-n)) / r, where PV is the present value, PMT is the monthly withdrawal amount, r is the monthly interest rate, and n is the total number of withdrawals.

Plugging in the values, we have:

PV = $2,154 * (1 - (1 + 0.00425)^(-12*30)) / 0.00425

Using a calculator, we find that PV is approximately $398,407.85.

Therefore, the amount needed for retirement, rounded to the nearest cent, is option b. $398,407.85. This amount will allow the individual to make monthly withdrawals of $2,154 for 30 years from an account paying 5.1% compounded monthly.

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Answer:

picture?

Step-by-step explanation:

Answer: 45

Step-by-step explanation:

The Median is the Middle # in the set.

I hope this helps!

Answer:

radius= diameter/2= 10/2

*radius=5

circumference= diameter*pi=10*3.14

*circumference=31.4

Step-by-step explanation: hope this helps

Answer:

y = 4

Step-by-step explanation:

y + 6 = 5(2 - 4)

y + 6 = 10 - 20

y + 6 = 10

y + 6 - 6 = 10 - 6

y = 10 - 6

y = 4

Answer:

y = -16

Step-by-step explanation:

\( \large{ \tt{❃ \: SOLUTION}} : \)

\( \underline{ \large{\tt{❁ \: USING \: TWO - POINT \: FORM \: OF \: EQUATION \: OF \: LINE : }}}\)

\( \boxed{ \large{ \tt{❈ \: y - y_{1} = \frac{y_{2} - y _{1}}{x_{2} - x_{1}} (x - x_{1})}}}\)

\( \large{ \tt{↦y - ( - 1) = \frac{12 - ( - 1)}{ - 7 - ( - 7)} \{x - ( - 7) \}}} \)

\( \large{ \tt{↦y + 1 = \frac{12 + 1}{ - 7 + 7}(x + 7)} }\)

\( \large \tt \:↦ \: y + 1 = \frac{12}{0} (x + 7)\)

\( \large{ \tt{↦ \: y + 1 = 12(x + 7)}}\)

\( \large{ \tt{↦y + 1 = 12x + 96}}\)

\( \large{ \tt{↦ \: 12x + 96 = y + 1}}\)

\( \large{ \tt{↦ \: 12x - y + 96 - 1 = 0}}\)

\( \large{ \boxed{ \tt↦12x - y + 95 = 0}}\)

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Answer:

292

Step-by-step explanation:

I don't know if it's correct but You need to learn pemdas

Btw I did this menatlly

Answer:

65 square units.

Step-by-step explanation:

Answer:

81.5

Step-by-step explanation:

<G and <H are congruent

<F and <I are congruent

so the last two angles in both triangles must also be congruent

this means that <K and <J are congruent

so we can create this equation: <K = <J

substitute the angles with what we know: 4\(y^{2}\) = 6\(y^{2}\) - 40

add 40 to both sides and subtract 4\(y^{2}\) from both sides: 40 = 2\(y^{2}\)

you get: 20 = \(y^{2}\)

root square on both sides: \(\sqrt{20}\) = \(\sqrt{y^{2} }\)

you get: y ≈ 4.5

substitute this into one of the equations for a missing variable:

6\(y^{2}\) -----> 6 (4.5 x 4.5) - 40

6 ( 20.25) - 40

121.5 - 40

81.5

Answer:

B

Step-by-step explanation:

To solve this, you need to combine like terms (ie. 6 and 9 or 2x and 3x).

4x + x - 3 - 9 + 4x = 6

9x - 12 = 6

Answer:

4x + x - 3 - 9 + 4x = 6

= 9x - 12 = 6

That's option B

Hope this helps

Answer:

1.65 is the right number of SDs to use when constructing a 90% confidence interval because it corresponds to the upper 5th percentile of a normal distribution, which gives a 5% chance of the true population parameter being outside the interval.

Answer:

40, leg

Step-by-step explanation:

The triangle has side lengths of 9, 40, and 41.

41 is the hypotenuse, so 40 is a leg.

Answer:

\(\frac{9\pm\sqrt{61}}{2}\)

Step-by-step explanation:

\(\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}=\frac{-(-9)\pm\sqrt{(-9)^2-4(1)(5)}}{2(1)}=\frac{9\pm\sqrt{81-20}}{2}\\\\=\frac{9\pm\sqrt{61}}{2}\)

To determine which of the given sets is a subspace of ℝ³, check if they satisfy the 3 properties of a subspace: closure under addition, closure under scalar multiplication, and containing the zero vector.

In summary, the only set that is a subspace of ℝ³ is W = {(a, b, 1): a and b are real numbers}.

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Answer:

3 + (5 + 7) = (3 + 5) + 7

Associative property

(3){5(7)} = (3){7(5)}

Commutative Property

5 + 0 = 5

Identity Property

Step-by-step explanation:

Answer:

  2.9403×10^15

Step-by-step explanation:

Your calculator can work this out for you.

  \((8.91\times10^2)(3.3\times10^{12})=(0.891\times10^3)(3.3\times10^{12})\\\\=(0.891\times3.3)(10^{3+12})=\boxed{2.9403\times10^{15}}\)

__

The applicable rule of exponents is ...

  (10^a)(10^b) = 10^(a+b)

__

Additional comments

You can keep a product the same if you divide one factor by 10 and multiply the other factor by 10:

  8.91×10² = (8.91/10)(10×10²) = 0.891×10³

I like to "pre-scale" the numbers in a problem like this so that the product comes out in scientific notation with no adjustment needed. That is, the product of the two mantissas is a number between 1 and 10.

Here, you can tell the product of 8.91 and 3.3 will be more than 24, so scaling will be necessary. It is convenient to scale the larger mantissa to be less than 1 so the product comes out less than 10. That is why we made it 0.891×10³.

Answer:

 2.9403×10^15

Step-by-step explanation:

i took the unit test

The scatterplot that represents Bryson's data is the scatterplot that is downward sloping.(Check the graph attached)

What is negative correlation?

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The banking industry serves as both a source of credit and a source of money for the populace. The bank will make more loans if the interest rates are lowered.

The amount of the loan that is charged to the borrowers as interest on an annual percentage basis is known as the interest rate.

If the Fed lowers interest rates, the bank will make more loans and the amount of money available will rise.

The company's borrowing and spending will increase, creating new job opportunities. More home and car purchases will occur as a result of rising income and employment, among other factors.

As a result, the economy will grow and the rate of inflation will drop.

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To approximate Ppk for the given binomial distribution X~Bin(n=50, p=0.4), we can use the Normal distribution with mean µ = n*p and variance σ² = n*p*(1-p).

The mean µ = 50 * 0.4 = 20.
The variance σ² = 50 * 0.4 * (1-0.4) = 12.

Using the Normal approximation, we have approximated the binomial distribution X~Bin(50, 0.4) with a Normal distribution with mean µ = 20 and variance σ² = 12.

For a more detailed explanation, when the sample size (n) is large, and the probability (p) is not too close to 0 or 1, the binomial distribution can be approximated by a normal distribution. In this case, the normal approximation simplifies calculations and provides a good estimate for the binomial probability P(pk).

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Answer:

-3/7

Step-by-step explanation:

Hi,

First of all, we know that the slope is not undefine because both the x-coordinates are not the same.

To find the slope, do change in y/change in x. Here, it would be ((2/7)-(5/7))/(2-1) or (-3/7)/1. Hence, the slope is -3/7.

The correct option is option (C) .

Cluster Sampling is a type of probability sampling and other options are non- probability sampling examples .

Sampling :

Sampling is defined as a technique that selects individual members or subsets from a population to help determine characteristics of the population as a whole.

Croach and Housden postulate that a sample is a finite number taken from a large group for testing and analysis, and that the sample can be taken as representative of the group as a whole.

There are two main types of sampling:

i) probability sampling

ii) Non-probability sampling

A) probability sampling:

It is defined as the sampling technique which researchers use a related method to draw probability theory samples from a larger population.

The most important requirement for probabilistic sampling is that everyone in the population has a known equal chance of being selected.

Probability Samples:

1. Stratified Sampling: Stratified sampling is a type of sampling technique that divides the total population into smaller groups or strata to complete the sampling process. Hierarchies are formed based on some common characteristics of demographic data.

2. Cluster Sampling: Cluster sampling is a probabilistic sampling technique in which researchers divide a population into multiple groups (clusters) for research purposes. Researchers then select random groups using simple sampling techniques for data collection and data analysis.

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The numbers that do not form a fact family are solved

Given data ,

A fact family consists of a set of related addition and subtraction facts that use the same numbers. For example, the numbers 3, 5, and 8 form a fact family because:

3 + 5 = 8

5 + 3 = 8

8 - 5 = 3

8 - 3 = 5

Numbers that do not form a fact family are any set of numbers that do not follow this pattern. For example, the numbers 2, 4, and 7 do not form a fact family because no combination of addition and subtraction using these numbers produces the other two numbers.

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The distance between the planes after 20 minutes = 15496.8

What is Distance?

Distance is the sum of an object's movements, regardless of direction. Distance can be defined as the amount of space an object has covered, regardless of its starting or ending position.

1st planes = 570mph at a bearing of s 62e plane

2nd planes = 525 mph at a bearing of n 18e plane

Coverting 20 minutes into hour = 0.3333 hours

speed of 1st plane = 570mph

Distance travelled by plane after 0.3333 hours= 570*0.3333 hours

= 189.981

speed of 2st plane = 525mph

Distance travelled by plane after 0.3333 hours= 525*0.3333 hours

= 174.982

Angle made by both plane between their is 62 + 18 = 80° ≅ 90°

Distance between both the planes

= \(\sqrt{(189.981)^{2} + (174.982)^{2} }\)

= \(\sqrt{36092.78 + 30618.700}\)

= \(\sqrt{66711.48}\)

= 258.28 hours

Converting hours into minutes

=15496.8

The distance between the planes after 20 minutes = 15496.8

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