Please help me answer this :)

Step-by-step explanation:

Given

- 4x + 5x = 11

or 5x = 11 + 4

or 5x = 15

or x = 15 /5

Therefore x = 3.

Hope it will help :)❤

Answer:

x=3

Step-by-step explanation:

-4+5x=11

+4 on both sides

5x=15

÷5 on both sides

x=3

Hope this helps =]

Answer:

The absolute maximum and minimum of \(f(x) = 5 + 54\cdot x -2\cdot x^{3}\) on \([0,4]\) are 113 and 5.

Step-by-step explanation:

Let be \(f(x) = 5 + 54\cdot x -2\cdot x^{3}\), the first and second derivatives of the function are, respectively:

\(f'=54-6\cdot x^{2}\)

\(f''=-12\cdot x\)

Now, let equalize the first derivative to zero and solve the resulting expression:

\(54-6\cdot x^{2} = 0\)

\(x^{2} = 9\)

\(x =\pm 3\)

According to the given interval, only \(x=3\) is a valid outcome. Lastly, this is evaluated in the second derivative expression:

\(f''=-12\cdot(3)\)

\(f'' = -36\)

\(x = 3\) leads to an absolute maximum.

\(f(3) = 5 + 54\cdot (3) -2\cdot (3)^{3}\)

\(f(3) = 113\)

The absolute minimum is determined by evaluating at each extreme of the interval:

\(x = 0\)

\(f(0) = 5 + 54\cdot (0) -2\cdot (0)^{3}\)

\(f(0) = 5\)

\(x = 4\)

\(f(4) = 5 + 54\cdot (4) -2\cdot (4)^{3}\)

\(f(4) = 93\)

The absolute maximum and minimum of \(f(x) = 5 + 54\cdot x -2\cdot x^{3}\) on \([0,4]\) are 113 and 5.

Opposite values are those values which on the number line has the same distance between them and zero. The temperature in each city is PoT=-PhT and PhT =+PoT.

Opposite values are those values which on the number line has the same distance between them and zero. Although the sign on the values may be difference. For example if the first value is 4, then its opposite value is -4.

In general, the temperature equation for Portland, Maine is stated mathematically as

PoT=-PhT

As it is given in the question that the Portland, Maine and Phoenix, Arizona had opposite values. Also, the temperature in Portland is lower than in Phoenix. Therefore, the temperature in each city can be written as,

PoT=-PhT

PhT =+PoT

Hence, the temperature in each city is PoT=-PhT and PhT =+PoT.

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Answer:

2000

Step-by-step explanation:

Formula = Number x 100/Percent = 600 x 100/3 = 2,000

Following shows the steps on how to derive this formula and find out 3% of what number is 60.

Step 1: If 3% of a number is 60, then what is 100% of that number? Setup the equation.

60/3% = Y/100%

Step 2: Solve for Y

Using cross multiplication of two fractions, we get

3Y = 60 x 100

3Y = 6000

Y = 6000/100= 2000

Answer:

96 square inches

Step-by-step explanation:

7x2+8x2x4+16

Answer: C. 16

Step-by-step explanation:

The mode represents the most frequently occurring value in a data set. A data set may have more than one mode. It is one of the measures of central tendency.

Answer:

C

Step-by-step explanation:

because in the given data the number which is 16 is repeated twice so it means it is the mode. Because when we say mode it is the most used number im the given date

A Type I error would occur if the HOA falsely rejects the null hypothesis that only 45% of homeowners support the fee increase when in reality more than 45% supports the increase.

A Type I error occurs when a null hypothesis is rejected when it is actually true. In this case, the null hypothesis is that only 45% of homeowners support the fee increase. To test this hypothesis, the HOA surveys a sample of 50 homeowners and uses the results to test the hypotheses H0: p = 0.45 and Ha: p > 0.45. If the HOA finds evidence that more than 45% of homeowners support the fee increase, when in reality only 45% or less of the homeowners support the fee increase, then a Type I error has occurred. On the other hand, if the HOA does not find evidence that more than 45% of homeowners support the fee increase, when in reality more than 45% of the homeowners do support the increase, then a Type I error has also occurred. In both cases, the HOA has incorrectly rejected the null hypothesis and a Type I error has occurred.

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Answer:100

Step-by-step explanation:

Because it's obtuse and it's not 95

A counterexample is an example that shows that a statement is false.

The counterexample of this statement is a 100 angle

The given statement can be split as:

The above statements mean that, all obtuse angle measure 95 degrees.

However, the actual definition of obtuse angles implies that, obtuse angles are between 90 degrees and 180 degrees (exclusive)

This means that a 100 angle is an obtuse angle

Hence, a 100 angle is a counterexample of the given statement

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The calculated volume of the prism is 702 cubic cm

From the question, we have the following parameters that can be used in our computation

The trapezoidal prism (see attachment)

The formula of the volume of a trapezoidal prism is

Volume = Base area * Height

Where we have

Base area = 1/2 * (8 + 10) * 6

Evaluate the sum of 8 and 10

Base area = 1/2 * 18 * 6

Evaluate the products of 1/2, 18 and 6

Base area = 54

Also, we have

Height = 13

So, the volume is calculated as

volume = 13 * 54

Evaluate

volume = 702

Hence, the volume of the prism is 702 cubic cm

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Answer:

The value is  \(p-value = 0.094963\)

Step-by-step explanation:

From the question we are told that

   The sample size is  n  = 500

   The number of rejected parts is  k =  10

    The null hypothesis is \(H_o : p = 0.03\)

    The alternative hypothesis is  \(H_1 : p < 0.03\)

Generally the sample proportion is mathematically represented as

           \(\^ p = \frac{10}{500}\)

=>       \(\^ p = 0.02\)

Generally the test statistics is mathematically represented as

           \(z = \frac{\^ p - p }{ \sqrt{\frac{p (1-p)}{n} } }\)

=>       \(z = \frac{0.02 - 0.03 }{ \sqrt{\frac{ 0.03 (1-0.03)}{500} } }\)

=>       \(z = -1.31080\)

From the z table the probability of  (Z <   -1.31080) is  

      \(p-value = P(Z < -1.31080) = 0.094963\)

Answer:

$1646.875

Step-by-step explanation:

We know that 32% of the original price (x) is $527:

\(.32x= 527\)

when we solve this we get

x= $1646.875

Hope this helps.

Reason:

We cannot divide by zero. This means the denominator cannot equal zero. If it was zero, then,

2x+10 = 0

2x = -10

x = -10/2

x = -5

Follow that chain in reverse to see that x = -5 causes the denominator 2x+10 to be zero. This is why we kick -5 out of the domain. Any other x value is valid.

Answer:

Selling price = rs 306

Step-by-step explanation:

Loss = cp - sp

54 = 360 - sp

Sp = 360-54 = rs 306

Answer: the answer is A

Step-by-step explanation: because the original question does not state that the swimmer “randomly selected” the members. It only says the swimmer “selects” 10 members. Therefore, it is A (The sample is not random)

youre welcome

Answer:

The jumping dolphin is approx. 6 meters under sea level

The flying seagull is approx. 8 meters under sea level

The mobula ray is approx. 2 meters under sea level

The clownfish is approx.t 4 meters under sea level

The octopus is approx.  8 meters under sea level

The jumping dolphin: The mobula ray is 9 meters lower than the jumping dolphin.

The flying seagull: The mobula ray is 11 meters lower than the flying seagull.

The octopus: The mobula ray is 11 meters higher than the octopus.

The jumping dolphin: The albatross is 1 meter lower than the jumping dolphin.

The flying seagull: The albatross is 3 meters lower than the flying seagull.

The octopus: The albatross is 13 meters higher than the octopus.

The jumping dolphin: The clownfish is 8 meters lower than the jumping dolphin.

The flying seagull: The clownfish is 10 meters lower than the flying seagull.

The octopus: The clownfish is 6 meters higher than the octopus.

If the new dolphin is above the dolphin in the picture, then its distance from the surface of the ocean is 6 - 3 = 3 meters.

If the new dolphin is below the dolphin in the picture, then its distance from the surface of the ocean is 6 + 3 = 9 meters.

✧☆*: .｡. Hope this helps, happy learning! (✧×✧) .｡.:*☆✧

Answer:

-2x² - 10xy + 2y²

Step-by-step explanation:

4x² - 9xy - 4y² - 6x² - xy + 6y² =

= 4x² - 6x² - 9xy - xy - 4y² + 6y²

= -2x² - 10xy + 2y²

the length of side a is 91 ft (rounded to the nearest whole foot) and the length of side b is 132 ft (rounded to the nearest whole foot). The area of the triangle is approximately 6007 sq ft.

Given: The hypotenuse of the right triangle,

c = 159 ft; angle A = 34°

We know that, in a right-angled triangle:

\($$\sin\theta=\frac{\text{opposite}}\)

\({\text{hypotenuse}}$$$$\cos\theta=\frac{\text{adjacent}}\)

\({\text{hypotenuse}}$$\)

We know the value of the hypotenuse and angle A. Using trigonometric ratios, we can find the length of sides in the right triangle.We will use the following formulas:

\($$\sin\theta=\frac{\text{opposite}}\)

\({\text{hypotenuse}}$$$$\cos\theta=\frac{\text{adjacent}}\)

\({\text{hypotenuse}}$$$$\tan\theta=\frac{\text{opposite}}\)

\({\text{adjacent}}$$\) Length of side a is:

\($$\begin{aligned} \sin A &=\frac{a}{c}\\ a &=c \sin A\\ &= 159\sin 34°\\ &= 91.4 \text{ ft} \end{aligned}$$Length of side b is:$$\begin{aligned} \cos A &=\frac{b}{c}\\ b &=c \cos A\\ &= 159\cos 34°\\ &= 131.5 \text{ ft} \end{aligned}$$\)

Now, we have the values of all sides of the right triangle. We can calculate the area of the triangle by using the formula for the area of a right triangle:

\($$\text{Area} = \frac{1}{2}ab$$\)

Putting the values of a and b:

\($$\begin{aligned} \text{Area} &=\frac{1}{2}ab\\ &=\frac{1}{2}(91.4)(131.5)\\ &= 6006.55 \approx 6007 \text{ sq ft}\end{aligned}$$\)

Therefore, the length of side a is 91 ft (rounded to the nearest whole foot) and the length of side b is 132 ft (rounded to the nearest whole foot). The area of the triangle is approximately 6007 sq ft.

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Horizontal changes are often the opposite of what you'd expect to see in the formula.

12:

To shrink/compress horizontally by a factor of 2/3, you need \(g(x) = f(\frac{3}{2}x)\).

Notice we have the reciprocal inside of the function notation.

13:

To translate left 5 units, you have \(g(x) = f( x+5 )\).

Notice we have the opposite sign inside of the function notation.

Bruce and Felicia would have a unique solution to the given equation. The value of x that satisfies the equation is 15.

To determine if the equation 6x + 2 = 5x + 17 has a unique solution, we need to check if the variable x has a consistent value that satisfies the equation.

By simplifying the equation, we can see that the equation becomes:

6x - 5x = 17 - 2

Simplifying further, we have:

x = 15

Since the variable x has a specific value, in this case, x = 15, the equation does have a unique solution. When x is substituted with 15 in the equation, both sides are equal.

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The vertex of the graphed function f(x) = [x - 4] + 3 is (4, 3).

The function f(x) = [x - 4] + 3 is in the form of an absolute value function, where the expression inside the absolute value brackets represents the input value shifted horizontally by 4 units to the right.

The constant term of 3 represents a vertical shift upwards by 3 units.

To find the vertex of this function, we need to determine the x-coordinate that corresponds to the minimum value of the absolute value function.

In this case, since the absolute value function is within brackets and not being multiplied or divided by a coefficient, the minimum value occurs at the point where the expression inside the brackets equals zero.

Therefore, setting x - 4 = 0, we find x = 4.

Substituting this x-value into the function, we find f(4) = [4 - 4] + 3 = 3. So the vertex of the graphed function is located at the point (4, 3), where x = 4 and y = 3. This means that the graph is shifted 4 units to the right and 3 units upward from the origin.

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Being a girl and playing a sport are C. No, they are not independent events, because P(girl) 0.49 and P(girl plays a sport) ~ 0.62.

Let's consider the probabilities:

P(girl) = (number of girls) / (total number of students) = 135 / 275 ≈ 0.49

P(girl plays a sport) = (number of girls playing a sport) / (total number of students) = 76 / 275 ≈ 0.276

If being a girl and playing a sport were independent events, the joint probability would be the product of the individual probabilities:

P(girl) × P(girl plays a sport) ≈ 0.49 × 0.276 ≈ 0.13524

However, the actual joint probability is different from the expected value:

P(girl, plays a sport) ≈ 76 / 275 ≈ 0.276

Since the joint probability does not match the product of the individual probabilities, we can conclude that being a girl and playing a sport are not independent events based on the given data.

Therefore, option C. No, they are not independent, because P(girl) 0.49 and P(girl plays a sport) ~ 0.62. is the correct answer.

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Note that the notation   "∪C = {x : x ∈ for some S ∈ C} = ∪ { S:S ∈ C}" represents a mathematical statement involving sets.

∪C : This represents the  union (∪) of the sets in C.

{x : x ∈ for some S ∈ C}: This is the description or definition of the elements in the set formed by the union of sets in C.

It states that an element x belongs to the union of   sets in C if and only if x belongs to at least one set S that is an   element of the set C.

= ∪{ S:S ∈ C}   : This means that the union (∪) of sets in C is equal to the union of all sets S that belong to the set C.

In summary,  the statement is saying that the union of sets in C consists of all elements that belong to at least one set in C. It is the combined collection of elements from all sets in C.

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Answer:

121

Step-by-step explanation:

300

-179

-------

121

Answer:

−k+3k

=−1k+3k

=−k+k+k+k

=k+k

=2k

For the additive opposites x+4y=28 and -x+y=12, yes, y is equal to 8.

In order to solve the given system of equations, we would apply the substitution method. Based on the information provided above, we have the following system of equations:

x + 4y = 28      .......equation 1.

-x + y = 12         .......equation 2.

By making x the subject of formula in equation 2, we have the following:

x = y - 12           .......equation 3.

By using the substitution method to substitute equation 3 into equation 1, we have the following:

y - 12 + 4y = 28

5y = 28 + 12

5y = 40

y = 40/5

y = 8

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Answer:

The absolute values of the slopes of these lines will determine their steepness.

In ascending order of steepness:

C, F, B, D, A, E

Answer:

m ≤ 5

Step-by-step explanation:

I will begin by assuming m to be the number.

Then, the sum of m and 3 is: m + 3.

The symbol for "less than or equal to" is ≤.

So we form an inequality, like this :

m + 3 ≤ 8

To find m subtract 3 on each side:

m ≤ 5

Therefore, m ≤ 5.