HI ITS MY BIRTHDAY PLEASE HELP ME!

Answer:

c>9

Step-by-step explanation:

c-3>6

+3   +3

c>9

Answer:

-1075

Step-by-step explanation:

The 64th term of the arithmetic sequence -4, -21, -38, .... is -1075.

Arithmetic sequences are a set of numbers written in an order where the difference of any two consecutive term will be a constant. This constant difference between the consecutive terms is called the common difference commonly denoted by 'd'. In other words, arithmetic sequences are formed by adding or subtracting a constant number to each term.

Arithmetic sequences are also known as arithmetic progression.

Here, the given sequence is -4, -21, -38, ...

Common difference, d = (-21) - (-4) = -21 + 4 = -17

First term, a = -4

We have to find the 64th term of this sequence.

nth term of an arithmetic progression is given by the formula,

aₙ = a + (n - 1)d

a₆₄ = -4 + [(64 - 1) × (-17)]

     = -4 + [63 × (-17)]

     = -4 + (-1071)

     = -1075

Hence the 64th term of the arithmetic sequence -4, -21, -38, .... is got as  -1075.

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The domain of the function is all real numbers and  range is  y ≥ -1.

Since the vertex is at (1,-1), the axis of symmetry is x = 1.

This means that the domain of the function is all real numbers.

To find the range, we need to consider the y-values of the graph. Since the vertex is the lowest point of the graph, the range must be all y-values greater than or equal to -1.

However, since the parabola opens upwards, there is no upper bound on the y-values.

Therefore, the range is given by y ≥ -1.

Hence, the domain of the function is all real numbers and  range is  y ≥ -1.

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Answer:

ok

Step-by-step explanation:

Answer:

5.9× 10^4

Step-by-step explanation:

I'm assuming that by "104" you actually meant "10^4," which reads "fourth power of 10."  Please be sure to use the symbol " ^ " to express exponentiation.

The sum of 2.5 × 10^4 and 3.4 × 10^4 is (2.5 + 3.4)×10^4

or

5.9× 10^4

Answer:y = 4x-5.

Step-by-step explanation:

Only matrices of the same size can be added or subtracted.

A matrix is a rectangular array of numbers and is composed of rows and columns. In order to add or subtract matrices, the matrices must have the same number of rows and columns. If the matrices do not have the same size, they cannot be added or subtracted.

For example, if one matrix is a 2x3 matrix, the other matrix must also be a 2x3 matrix. Similarly, if one matrix is a 3x2 matrix, the other matrix must also be a 3x2 matrix. The numbers in each matrix may vary, but the size of the matrices must be the same for the operation to be valid.

When adding or subtracting matrices, the numbers in the same position (row and column) are added or subtracted. For example, if one matrix is [[1,2,3], [4,5,6], [7,8,9]] and the other matrix is [[2,4,6], [8,10,12], [14,16,18]], the resulting matrix would be [[3,6,9], [12,15,18], [21,24,27]].

Adding and subtracting matrices is a useful tool in mathematics and is often used to solve equations and simplify complex problems. It is important to remember that only matrices of the same size can be added or subtracted.

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There are 100,00 cm in a kilometre.

The topmost common factor of 6 and 30 is 6.

To find the topmost common factor( GCF) of 6 and 30.

We can determine the factors of both figures and identify the largest factor they've in common.

The factors of 6 are 1, 2, 3, and 6.

The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30.

From the common factors listed over, the largest factor that both 6 and 30 share is 6.

Thus, the topmost common factor of 6 and 30 is 6.

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If the price of the stock is now $2.40 then the original stock price was $10.

In order to determine the original stock price, we need to work backwards from the current price of $2.40 and the percentage drops of 40% and 60%.

Let's assume that the original stock price was "x".

Then, we know that the stock price fell by 40% when the company overestimated demand.

This means that the new stock price was 60% of the original price (100% - 40% = 60%).

So, after the first drop, the stock price was:0.6x

Next, the company was forced to recall the seats due to them deflating in heat.

This caused the stock price to drop by another 60%, but from the new lower price of 0.6x.

This means that the new stock price was 40% of the previous price (100% - 60% = 40%).

So, after the second drop, the stock price was:0.4(0.6x) = 0.24x

Finally, we are given that the current stock price is $2.40.

Setting this equal to the second drop price, we can solve for "x":0.24x = 2.40x = $10

Therefore, the original stock price was $10.

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Kendall receives $125 more in commissions than Peter if they both sell 5 computers

The given functions are;

For Kendall: f(x) = 250x

For Peter: g(x) = 225x

Let's put x=5 in the given functions;

For Kendall: f(x) = 250x

= 250(5)

= $1250

For Peter: g(x) = 225x

= 225(5)

= $1125

Kendall receives $1250 in commissions and Peter receives $1125 in commissions.

Therefore, the difference between their commissions is; $1250 - $1125 = $125.

Therefore, Kendall receives $125 commission than Peter.

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a. To determine the necessary sample size with a 90% confidence level and an estimate within 1% of the population proportion, we can use the formula:

n = [(Z^2 * p * (1-p)) / E^2]

Where:
n = necessary sample size
Z = z-score for the desired confidence level (in this case, 1.645 for 90%)
p = estimated proportion from past surveys (in this case, 0.3)
E = allowable error (in this case, 0.01)

Plugging in the values, we get:

n = [(1.645^2 * 0.3 * (1-0.3)) / 0.01^2]
n = 610.09

Rounding up to the next whole number, the necessary sample size is 611.

b. To reduce the sample size, we can increase the allowable error. If we allow for an error of 0.05 instead of 0.01, we can recalculate the sample size using the same formula:

n = [(Z^2 * p * (1-p)) / E^2]

Where:
n = necessary sample size
Z = z-score for the desired confidence level (in this case, 1.645 for 90%)
p = estimated proportion from past surveys (in this case, 0.3)
E = allowable error (in this case, 0.05)

Plugging in the values, we get:

n = [(1.645^2 * 0.3 * (1-0.3)) / 0.05^2]
n = 98.19

Rounding up to the next whole number, the necessary sample size is 99. Therefore, by increasing the allowable error, we can reduce the sample size to 99. However, it's important to note that increasing the allowable error also increases the margin of error in the estimate.

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Answer:

elon musk

Step-by-step explanation:

elon sends out random, uncalled for tweets, which mess with the stock value.

For example, when the stock was very high, he tweeted,"Tesla stock too high"

Answer:

It woule be c and d, so a)

Step-by-step explanation:

Only a and b are functions.

Answer:

the first : y = -3(x + 2)² + 10

Step-by-step explanation:

let's do the operations :

-3(x + 2)² + 10 = -3(x² + 4x + 4) + 10 = -3x² - 12x - 12 + 10 =

= -3x² - 12x - 2

and that's exactly the original expression.

CenterWare's direct labor rate variance is $2,100 unfavorable, indicating that the actual rate paid for labor was higher than the standard rate. The direct labor efficiency variance is $2,500 favorable, suggesting that the company achieved higher productivity than expected. The total variance for direct labor is $400 favorable.

To compute the direct labor rate variance, we need to calculate the difference between the actual rate and the standard rate, and then multiply it by the actual hours worked. The formula for the rate variance is (Actual Rate - Standard Rate) × Actual Hours. In this case, the standard rate is $21.00 per hour, and the actual rate is $18.00 per hour. The actual hours worked are 2,500 DLH. Plugging in these values, we find the direct labor rate variance to be ($18.00 - $21.00) × 2,500 = -$7,500, indicating an unfavourable variance.

To calculate the direct labor efficiency variance, we need to find the difference between the actual hours worked and the standard hours allowed, and then multiply it by the standard rate. The formula for the efficiency variance is (Actual Hours - Standard Hours) × Standard Rate. The standard hours allowed are 2,000 DLH (1,000 pots × 2.0 hours per pot). Substituting the values, we get (2,500 - 2,000) × $21.00 = $10,500, indicating a favorable variance.

The total variance for direct labor is the sum of the rate variance and the efficiency variance. In this case, the total variance is -$7,500 + $10,500 = $3,000, which is favorable, indicating that the company performed better than expected in terms of labor cost and efficiency.

The responsibility for the rate variance generally lies with the purchasing department, as they are responsible for negotiating labor rates and purchasing materials at the standard price. The efficiency variance is typically the responsibility of the production department, as they are accountable for achieving the standard labor hours and maximizing productivity.

The rate variance reflects the difference between the actual rate paid for labor and the standard rate. An unfavorable rate variance suggests that the company paid more for labor than anticipated, which could be due to factors like higher wages or inefficient labor management. Conversely, a favorable rate variance would indicate cost savings in labor.

The efficiency variance measures the productivity of labor and represents the difference between the actual hours worked and the standard hours allowed. A favorable efficiency variance implies that the company achieved higher productivity or used fewer labor hours than expected. It could result from factors such as skilled and efficient labor, improved production processes, or effective workforce management.

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The solutions to the quadratic equation x² + 3x - 28 = 0 are 4 and -7.

The quadratic formula is expressed as;

x = (-b±√(b² - 4ac)) / (2a)

Given the equation;

x² + 3x - 28 = 0

Substitute the values of a, b, and c into the formula and solve for x.

x = (-b±√(b² - 4ac)) / (2a)

x = ( -3 ±√( 3² -  ( 4 × 1 × -28) )) / (2×1)

x = ( -3 ±√( 9 -  ( -112) )) / (2)

x = ( -3 ±√( 9 + 112 )) / (2)

x = ( -3 ±√( 121 )) / 2

x = ( -3 ± 11 ) / 2

x = ( -3 - 11 ) / 2, x = ( -3 + 11 ) / 2

x = -14/2, x = 8/2

x = -7, x = 4.

Therefore, -7 and 4 are the solutions to the equation.

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To solve the given system of equations we will use the substitution method.

Subtracting 2x from the first equation we get:

Substituting the above equation in the second one we get:

Simplifying the above equation we get:

Adding like terms we get:

Subtracting 5 from the above equation we get:

Now, notice that:

Therefore:

Now, we know that:

Therefore:

Then:

Finally, substituting the above result in y=-3-2x we get:

Therefore, the solutions of the given system of equations are:

Answer:

Answer:

Aircraft A = 283 seats

Aircraft B = 157 seats

Step-by-step explanation:

Aircraft A = B + 126

Aircraft B

A + B= 440

B + 126 + B= 440

Collect the like terms

B+B+126= 440

2B+126= 440

2B= 440-126

2B= 314

B= 157

Substitute 157 for B in equation 1

A= B+126

A= 157+126

A= 283

Hence Aircraft A has 283 seats and Aircraft B has 157 seats

Answer:

2.5 hours

Step-by-step explanation:

Let t = time in hours for reach friend's house

(t-1.5) = time for friend to drive her home

:

Both trips are the same distance, Write a distance equation from this fact:

Distance = speed * time

Drive distance = Bike distance

Equation-

step1)   25 (t-1.5) = 10t          (here u multiply 25 by t and 25 by 1.5)

step2)  25t - 37.5 = 10t        (move 37.5)          

step3)  25t - 10t = +37.5      (subtract 25t from 10t)

step4)  15t = 37.5                 (divide 37.5 by 15)

step5)  t = 2.5                     (time it took Luke to reach his aunt's house)

The corresponding side in the other Hexagon will be 15.81.

What is Hexagon?

In geometry, a hexagon is a six-sided polygon. Each internal angle and the side length of a regular hexagon are both 120 degrees. The formula used to determine the area of a regular hexagon is:

Area = 3 \(\sqrt{3}\)/2 * \(side^{2}\)

Each internal angle in an irregular hexagon can be greater than or less than 120 degrees, and the sides are uneven in length.

In our question it is given that the ratio of the area of two similar hexagons is 5:2. This indicates that the sides' square ratio is 5: 2.

Let x represent the corresponding side in the opposite hexagon.

Then, \(25^{2}\) : \(x^{2}\) = 5:2

= 625/\(x^{2}\) = 5/2

= \(x^{2}\) = (625 *2)/5

= \(x^{2}\) = 250

= x = \(\sqrt{250}\)

= x = 15.81 approx

Therefore, the corresponding side in the other hexagon will be 15.81.

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Answer:

D

Step-by-step explanation:

^^^

0.13

Explanation:

P(B|A) = P(A and B) / P(B)

P(spanish|Technology) =  0.087/0.68 = 0.1279 ~ 0.13

The probability that a student takes Spanish given that the student is taking Technology is; 0.13

To solve this, we need to understand Baye's theorem of conditional probability which is;

P(A|B) = P(AB)/P(B)

Where;

P(A|B) is the probability of A given that B is true

P(AB) is probability of A & B

P(B) is probability of B

We are given;

P(A student takes technology) = 0.68

P(student takes both technology and Spanish) = 0.087

Applying Baye's theorem, we have;

P(that a student takes Spanish given that the student is taking Technology) = 0.087/0.68

P(that a student takes Spanish given that the student is taking Technology) = 0.13

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The equation for the least squares regression line for predicting height from foot length is :

predicted height = 91.9766 + 6.47044 (foot length).

To find the equation for the least squares regression line for predicting height from foot length, we need to use the given computer output. Here is the computer output:

The regression equation is:

y^ = b0 + b1x

where

b0 = 91.9766 and b1 = 6.47044

Therefore, the equation for the least squares regression line for predicting height from foot length is:

predicted height = 91.9766 + 6.47044 (foot length)

Thus, the correct answer is:

predicted height = 91.9766 + 6.47044 (foot length)

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is it 2x - 45 or is it 2x - 4 5 can you write the question again in comment

The unit price of 24 oz can of soup is $0.2

8 oz can of soup cost $1.75

24 oz can of soup cost $4.90

The unit price of 24 oz can of soup can be calculated as follows

24= 4.90

1= x

Cross multiply both sides

24x= 4.90

Divide by the coefficient of x which is 24

24x/24= 4.90/24

x= 0.2

Hence the unit price of 24 oz can of soup is $0.2

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The ordered triple (1, -2, 3) is a solution to the system of linear equations.

For the given system of linear equations:1.(0, 3, -2): Not a solution since Equation 1 yields 5 instead of 1, Equation 2 yields -3 instead of 16, and Equation 3 yields 19 instead of -14. 2.(12, 5, -13): Equation 1 yields 1, Equation 2 yields 26 instead of 16, and Equation 3 yields -14. Not a solution for Equation 2 but satisfies Equations 1 and 3. 3.(1, -2, 3): Satisfies Equations 1 and 3, but Equation 2 yields 12 instead of 16, so it's not a solution for Equation 2. 4.(-2, 5, -3): Not a solution since Equation 1 yields 7 instead of 1, Equation 2 yields -14, and Equation 3 yields 38 instead of -14. Therefore, only the ordered triple (1, -2, 3) is a solution to the system of linear equations.

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The equation that describes a circle with center at (2,3) and passing through the point (-3,-4) is:

(D) (x-2)^2 + (y-3)^2 = 74.

The general equation of a circle is (x-a)^2 + (y-b)^2 = r^2, where (a,b) represents the center of the circle and r represents the radius.

Given that the center is at (2,3), we substitute a = 2 and b = 3 into the general equation:

(x-2)^2 + (y-3)^2 = r^2.

To find the radius, we use the fact that the circle passes through the point (-3,-4).

Substituting x = -3 and y = -4 into the equation, we have:

(-3-2)^2 + (-4-3)^2 = r^2.

Simplifying the equation:

(-5)^2 + (-7)^2 = r^2, 25 + 49 = r^2, 74 = r^2.

Therefore, the equation that describes the circle is (x-2)^2 + (y-3)^2 = 74, which corresponds to option (D).

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Answer:

-23 divided by -7

Step-by-step explanation:

Answer:

-7 - x < -2/3

Step-by-step explanation:

The difference between −7 and a number x

-7 - x

is no more than −2/3.

-7 - x < -2/3

Answer:

its SAS

Step-by-step explanation: