please help
QUESTION S Find the absolute minimum of the function e f(x)=x²-² the interval [1.4) Round to three decimal places, please) ion on the

A discrete variable is a variable whose value is obtained by counting while a continuous variable is a variable whose value is obtained by measuring.

From the question,

The number of cars a car dealer sells in a day is a discrete variable.

The time it takes to have a medical physical exam is a continuous variable.

Answer:

-9+2x

Step-by-step explanation:

The correct hypothesis statement would be:

H0: μ = 45 (null hypothesis)

H1: μ ≠ 45 (alternative hypothesis)

The null hypothesis (H0) represents the current belief or assumption, and states that the population mean is equal to a specific value, which in this case is 45 minutes. The alternative hypothesis (H1) is the opposite of the null hypothesis, and states that the population mean is not equal to 45 minutes.

This hypothesis statement assumes a two-tailed test, where the researcher is interested in detecting any significant deviation from the hypothesized mean in either direction. This means that the researcher will reject the null hypothesis if the sample mean is either significantly higher or significantly lower than 45 minutes, based on the level of significance chosen for the test.

Option D correctly states the null hypothesis but incorrectly states the alternative hypothesis. Option A correctly states the alternative hypothesis but incorrectly states the null hypothesis. Option C states a one-tailed alternative hypothesis, which is only appropriate if the researcher has a specific direction in mind (e.g., if they expect the average time to be longer than 45 minutes).

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The solution to the quotient is 3582/43 or 83.30

Division is by splitting two number into two or more parts.  Quotient is gotten after dividing one number by the other

Rewrite the fraction and long format

\(\frac{3882}{43}\)

= 83.30

Therefore, the estimate for the quotient is 83.30

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Answer:

\(6x^{2} + 7x - 20\)

Step-by-step explanation:

Answer: Ayden has 11 football cards,44 baseball cards and 51 Pokemon cards which totals  106 cards all together

Step-by-step explanation:

STEP 1 :

Let x represent number of football cards

He has four times as many baseball cards as football cards, let baseball cards be = 4x

Pokémon cards contain 7 more cards than his baseball collection,let Poke mon cards = 4x +7

Step 2 :

Putting in equation we have that

Football cards + Baseball cards + Pokemon cards = 106 cards

Therefore,

x + 4x + 4x+7 = 106

9x + 7 = 106

9x = 106-7

9x = 99

x =99/9 = 11

therefore football cards , x = 11 football cards

 baseball cards = 4x = 4 x 11 = 44 baseball cards

Pokemon cards = 4x+7= 4x11 +7 = 44 +7 =51 Pokemon cards

Answer:

5.6 cm

Step-by-step explanation:

use the cosine ratio to get the answer since AB is the adjacent side and the hypotenuse has already been given

 If both pairs of opposite angles of a quadrilateral are congruent, then the quadrilateral is a parallelogram. Given: ∠A≅∠C,∠B≅∠D Prove: ABCD is a parallelogram.

Statements/Reasons

1. The sum of the measures of the angles of a quadrilateral is 360  /  a. Given

2. 2(x+y)=360  /  b. Substitution: x+y=180

3. x+y=180  /  c. Simplification: 2(x+y)=360

4. ∠A and ∠B are supplementary  /  d. Definition of supplementary angles

5. ∠A and ∠D are supplementary  /  e. Definition of congruent angles

6. ABCD is a parallelogram  /  f. Definition of a parallelogram

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Answer:

19

Step-by-step explanation:

115+10P=305

305-115=190

190/10=19

Answer: B = 1.9

Step-by-step explanation:

A=5

C=12

B=x

Pythagorean Theorem: 5^2 + x^2 = 12^2  

25+x^2=144

x^2=119

\(\sqrt{19}\)≈10.9

Answer:

Here's the answer

JUST correct me if I'm wrong

Step-by-step explanation:

Btw brainliest me plss

A box plot shows the minimum, maximum, median, and any outliers of a data set. It does not show individual values in the data set. Therefore, options A, C, D, and E are the correct answers.

A box plot is a graphical representation of a data set that displays the median, individual values, outliers, minimum, and maximum of the data set.

The box plot is created by drawing a box from the lower quartile, or the 25th percentile, to the upper quartile, or the 75th percentile, with a line in the middle of the box representing the median of the data set.

The individual values in the data set are represented by dots, marks, or lines outside of the box. Outliers, or values that are significantly different from the rest of the set, are also represented outside of the box. T

he minimum and maximum of the data set are typically represented by either a line or a dot outside of the box.

Therefore, options A, C, D, and E are the correct answers.

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Because the temperature is greater, the relative humidity of the atmosphere is higher.

Water vapor is also measured by relative humidity (RH), which is stated as a percentage but RELATIVE to the air's temperature. In plenty of other terms, it is a comparison between the quantity of water vapor that is really present in the air and the maximum amount water vapor that is possible for the air at the current temperature.

By deducting the temperature just on wet-bulb thermometer from of the temperature just on dry-bulb thermometers and utilizing a relative humidity chart, one may determine the relative humidity.

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Answer:

F(x) = 1/x^2

Step-by-step explanation:

F(x) = 1/x^2 is

y = 1/x^2

graph goes up to 10 each side

plug in 1,2,3,4,5,6,7,8,9,10 for x and see what y looks like

when x is  1,2,3,4,5,6,7,8,9,10

y is 1,1/4,1/9,etc

The logarithm of 10 to base 10 is 1

The given parameters are:

So, the logarithm expression can be represented as:

\(\log_{10}10\)

The law of logarithm states that:

\(\log_{x}x = 1\)

The above means that;

When the base and the number are the same, the logarithm is 1

So, we have:

\(\log_{10}10 = 1\)

Hence, the logarithmic value is 1

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The cost of eight ruler and three pens is le79.125.

Let's call the cost of a pen x and the cost of a ruler y. From the first statement, we can create the equation:

x + 3y = 29

And from the second statement:

6x + 2y = 48

That is dividing by 2, 3x + y = 24

Now we have two equations with two variables and can use substitution or elimination method to find the values of x and y.

Let's use substitution:

x = 29 - 3y

Substituting this into the second equation:

3(29 - 3y) + y = 24

87 - 9y + y = 24

8y = 63

y = 63/ 8

y = 7.875

Now that we have the value of y, we can use the first equation to find the value of x:

x = 29 - 3y = 29 - 3 * 63/8

= 5.375

So, a pen costs le5.375 and a ruler costs le7.875. To find the cost of 8 rulers and 3 pens, we multiply:

8 * 7.875 + 3 * 5.375 = le79.125

The cost of 8 rulers and 3 pens is le79.125.

--The question is incomplete, the complete question is as follows--

"The cost of a pen and three ruler is le29 while two ruler and six pen cost le48. Find the cost of eight ruler and three pen."

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Answer:

yor mom

Step-by-step explanation:

The function B(t) = 1872(0.83)\(.^t\) represents the annual population of bees in a county park, the decline rate is 17%.

An equation is an expression that shows the relationship between two or more numbers and variables.

An independent variable is a variable that does not depend on any other variable for its value while a dependent variable is a variable that depends on other variable.

The decline rate will be calculated as below:-

An exponential function is in the form:

y = abˣ

Where a is the initial value and b is the multiplication factor.

From the function :

b = 0.83

The decline rate will be calculated as,

Decline rate = 1 - 0.83 = 0.17 x 100 = 17%

The function B(t) = 1872(0.83)\(.^t\)  represents the annual population of bees in a county park, the decline rate is 17%.

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The interval where the revenue is increasing is (-3, 0) U (3, ∞), the correct option is (A) (-3,0) U (3, ∞).

marginal revenue is MR = -x³+9x

We know that,Total Revenue = TR = ∫MR dx

Since, MR = -x³+9x

Then,TR = ∫(-x³+9x) dx

TR = -x⁴/4 + 9x²/2 + C ------(1)where C is the constant of integration.

To find the increasing interval, we need to find the increasing points of TR.

We have,TR = -x⁴/4 + 9x²/2 + C ------(1)

Differentiating w.r.t x, we get,dTR/dx = -x³ + 9x ------(2)

Now, for increasing interval dTR/dx > 0dTR/dx = 0 at critical points

d²TR/dx² < 0 for maximum points

d²TR/dx² > 0 for minimum points

Putting dTR/dx > 0 in equation (2), we get- x³ + 9x > 0x(x² - 9) > 0x > 0 [x² - 9 < 0]x > 0, x < -3, x > 3

These are the critical points, we also need to check at end points.

To check at x = -∞ and x = +∞, we use limit:∵ as x → ±∞, x³ term dominates

So, MR → -∞

Hence, there is no maximum or minimum point.

So, we consider intervals x < -3, -3 < x < 0, 0 < x < 3 and x > 3

Checking at x = -4, -1, 1 and 4, we have following sign table:x -4 -3 -1 0 1 4dTR/dx + - - + + -d²TR/dx² - - - - + +

From above sign table, we get,for x < -3, dTR/dx < 0

Hence, TR is decreasing in (-∞, -3)for -3 < x < 0, dTR/dx > 0

Hence, TR is increasing in (-3, 0)for 0 < x < 3, dTR/dx < 0

Hence, TR is decreasing in (0, 3)for x > 3, dTR/dx > 0

Hence, TR is increasing in (3, +∞)

Therefore, the interval where the revenue is increasing is (-3, 0) U (3, ∞).

Hence, the correct option is (A) (-3,0) U (3, ∞).

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The final answer is that Luis paid $3.58 too much for his purchase ($2.30 - $2.21 = $0.09).

Here's an explanation of the calculations:

To determine the total cost of the purchases, we calculate the price of each item, the total cost of each item, and the total cost of all items combined.

1 gallon of milk at $2.89:

Price: $2.89

2 loaves of bread at $2.19 each with a $0.75 discount:

Price per loaf: $2.19

Total cost of 2 loaves: 2 * $2.19 = $4.38

Total cost with discount: $4.38 - $0.75 = $3.63

2 pounds of ham at $6.89 per pound:

Price per pound: $6.89

Total cost of 2 pounds: 2 * $6.89 = $13.78

1/2 pound of cheese at $8.38 per pound:

Price per pound: $8.38

Total cost of 1/2 pound: 0.5 * $8.38 = $4.19

Total cost before tax: $2.89 + $3.63 + $13.78 + $4.19 = $26.47

Now, we calculate the sales tax at 4% to determine the final cost.

4% of $26.47 = $1.06

Final cost: $26.47 + $1.06 = $27.53

Luis paid $29.83 for the items, which means he paid an extra amount.

Amount paid by Luis: $29.83

Amount he should have paid: $27.53

Amount he paid in excess: $29.83 - $27.53 = $2.30

However, the question asks for the amount paid too much after applying the sales tax, so we need to deduct the tax paid on the excess amount.

Tax paid on the excess amount: $2.30 × (1 - 0.04) = $2.21

The final answer is that Luis paid $3.58 too much for his purchase ($2.30 - $2.21 = $0.09).

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Answer:

40

Step-by-step explanation:

So if you add 5 to 75 you get 80 so that means there were 80 matches all then you divide 80 by 2 and voila 40!

Hoped this helped

P.s. Can I get a happy bday my bday is tmmr

Precession is a phenomenon that refers to the gradual and continuous change in the orientation of the Earth's rotational axis over long periods of time.

This shift in the orientation of the axis of rotation results in changes in the position of the celestial pole with respect to the stars, which causes a shift in the apparent position of stars over time. The precession of the Earth's axis is caused by the gravitational forces of the Sun, Moon, and other planets in the solar system.
Precession is characterized by changes in the magnitude of the angle of tilt, which causes changes in the rate of the Earth's spin. As the axis of rotation moves, it causes the length of the day to change over time. Additionally, deviations in the circularity of the orbit also affect the precession of the Earth's axis.
Precession is a significant phenomenon in astronomy and has been observed for thousands of years. It has important implications for studies of astronomy, geology, and climate change. For instance, precession affects the timing of the seasons and has a significant impact on the Earth's climate. It also affects the orientation of the Earth's magnetic field, which has important implications for navigation and communication systems.
In conclusion, precession is the gradual change in the orientation of the Earth's rotational axis, caused by the gravitational forces of the Sun, Moon, and other planets. It results in changes in the magnitude of the angle of tilt, changes in the rate of Earth's spin, and deviations in the circularity of the orbit. Precession has significant implications for various fields of study, including astronomy, geology, and climate change.

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Answer:

-3

Step-by-step explanation:

3 x 6 - 42/2 =

18 - 42/2 =

18 - 21 =

-3

Answer:

18-21=x

Step-by-step explanation:

18-21=x

x= -3(this is just extra)

Solving a linaer equation we can see that your cat weighs two more pounds.

Let's define the variables:

x = your cat's weight.

y = your friend cat's weight.

We can write the linear equation:

y = 0.833...*x

And we also know that.

y = 10 lb, replacing that we will get:

10lb =  0.833...*x

Solving that for x:

x = 10lb/  0.833...

x = 12 lb

Then you can see that your cat weighs 2 pounds more.

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The simplified expression for (2+i)(4-5i) is 13 - 6i. To simplify the expression (2+i)(4-5i), we can use the distributive property of multiplication over addition.

First, we multiply the real parts: 2 * 4 = 8.

Then, we multiply the imaginary parts: i * (-5i) = -5i².

Since i² is defined as -1, we have -5i² = -5(-1) = 5.

Finally, we combine the real and imaginary parts: 8 + 5i.

Therefore, the simplified expression is 8 + 5i.

However, if we prefer to express the answer in the standard form a + bi, where a and b are real numbers, we can rewrite 8 + 5i as 13 - 6i by rearranging the terms. This form is commonly preferred because it allows for easier comparison and computation of complex numbers.

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The given statement " let a be an n \times n matrix. a is diagonalizable if it has n eigenvalues, counting multiplicities." is False. Because Matrix has only one linearly independent eigenvector.

Having n eigenvalues, counting multiplicities, only guarantees that A is diagonalizable over the field of complex numbers, but not necessarily over other fields such as the real numbers.  The correct statement is Let A be an n × n matrix. A is diagonalizable if and only if it has n linearly independent eigenvectors.

For example, the matrix:

A = [0 1; -1 0] hhggjjjhjhjhj

has eigenvalues i and -i, but it is not diagonalizable over the field of real numbers, since it has only one eigenvector which is also linearly independent. However, it is diagonalizable over the field of complex numbers. So, the given statement is false.

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The given parallel lines intersect at the point (-4, -1, 1). Therefore, they are not coincident, they are distinct. b) The given parallel lines are distinct.

a) We have to check whether the given parallel lines intersect or not. If they do not intersect then they are distinct, and if they intersect then they are coincident. Let's set the x-, y-, and z- coordinates of the two lines equal and solve for s and t. [x, y, z] = [5, 1, 3] + s[2, 1, 7] [x, y, z] = [2, 3, 9] + t [2, 1, 7]x = 5 + 2s = 2 + 2ty = 1 + s = 3 + ty = -2 - 6s = 1 + 7t.

The two lines are not coincident, they are distinct because they intersect at the point (-4, -1, 1).b) [x, y, z] = [4, 1, 0] + s[3, -5, 6] [x, y, z] = [1, 6, 6] + t[3, -5, 6]Let's set the x-, y-, and z- coordinates of the two lines equal and solve for s and t. [x, y, z] = [4, 1, 0] + s[3, -5, 6] [x, y, z] = [1, 6, 6] + t[3, -5, 6]x = 4 + 3s = 1 + 3ty = 1 - 5s = 6 - 5t4s = -3 + 5t.The two lines are not coincident, they are distinct.

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Answer:

1/20 2/25 2/6

Step-by-step explanation:

plz use it it's true

Opposite angles are identical.

11y = 55

Y = 55/11

Y = 5

3z-4 = 110

Add 4 to both sides

3z= 114

Z = 114/3

Z = 38

180 -110 = 70

55 + x = 70

X = 70-55

X =15

X = 15, y = 5, z = 38

Answer:x=15, y=5, z=38

Step-by-step explanation: you know that opposite angles are the same. y=5

add 4 to both sides. and you get the value for x y z.

Answer:

0.6 gallons of methane are needed to fill a 15-gallone fuel tank.

Step-by-step explanation:

Methane is 4% of the total amount.

The total amount is of 15 gallons. So

0.04*15 = 0.4*1.5 = 0.6

0.6 gallons of methane are needed to fill a 15-gallone fuel tank.

Answer:

66 meters

Step-by-step explanation:

The formula to calculate the distance around wheel is

Speed (meters per second) × Time (seconds)

Speed = 1.2 meters per second.

Time = 55 seconds

Distance = 1.2 meters per second × 55 seconds

Distance = 66 meters

Therefore, in that time, the distance around the wheel that Franklin's cabin travelled is 66 meters