Can some one help me with this I don’t get it 3+-7=

Answer:

Step-by-step explanation:

OMG! Don't do that! I am so sorry this is happening to you. Look I don't know how to comfort you. IF he keeps doing this tell your mom or litterally call 911. If he did it just on that day then try confronting him on it. And ask him why he did that! Don't self-harm you deserve so much more than that! You are awesome!

Answer: 2.79 x 10 to the 5th power

Step-by-step explanation: Your welcome :)

Answer:

2.79 x \(10^{5} }\)

Step-by-step explanation:

7.9 x \(10^{4}\) = 79000

2 x \(10^{5}\) = 200000

79000 + 200000 = 279000

279000 = 2.79 x \(10^{5} }\)

Hope this helps, I'm sorry about the earlier question but I fixed it:)

Answer:

For half of that time, the airplane flew at a speed of 900 km/h, and for the rest of the time, it flew at a speed of 760 km/h.

Step-by-step explanation:

Answer:

The distance David travelled was 1540 km.

Step-by-step explanation:

To find the total distance David travelled, calculate the distance of the two legs of the journey separately, then add them together.

David flew at a speed of 880 km/h for one-fourth of 2.2 hours.

One-fourth of 2.2 hours is:

\(\implies \sf \dfrac{1}{4} \cdot 2.2 = 0.55\;\sf hours\)

To calculate the distance of this leg of the journey, substitute the given speed and found time into the Speed Distance Time formula.

\(\implies \sf Speed=\dfrac{Distance}{Time}\)

\(\implies \sf 880\;km/h=\dfrac{Distance}{0.55\;h}\)

\(\implies \sf Distance=880\;km/h \cdot 0.55\;h\)

\(\implies \sf Distance=484\;km\)

Therefore, David travelled a distance of 484 km during the first leg of his journey.

David flew at a speed of 640 km/h for the remainder of the journey.

The length of time of the second leg of the journey is 2.2 hours less 0.55 hours:

\(\implies \sf 2.2-0.55=1.65\;hours\)

To calculate the distance of this leg of the journey, substitute the given speed and found time into the Speed Distance Time formula.

\(\implies \sf Speed=\dfrac{Distance}{Time}\)

\(\implies \sf 640\;km/h=\dfrac{Distance}{1.65\;h}\)

\(\implies \sf Distance=640\;km/h \cdot 1.65\;h\)

\(\implies \sf Distance=1056\;km\)

Therefore, David travelled a distance of 1056 km during the second leg of his journey.

Therefore, the total distance is the sum of the distances of the two legs of the journey:

\(\sf \implies Total\;distance=484+1056=1540\;km\)

Answer: 13

Step-by-step explanation:

bottom was cut off a bit its 4=b

Answer:

f(0) = 2

Step-by-step explanation:

f(x) = 7x+2

→ f(0)

f(0) = 7(0)+2

= 0+2

= 2

Answer:

f (0) = 2

Step-by-step explanation:

f (x) = 7x + 2

f (0) = 7 × 0 + 2

= 2

Answer: The answer is 5/16

Brainlist plz

Step-by-step explanation:

To connect root position triads in minor keys and alter the V chord, the common tone is retained in the same voice. In numbers 6-10. The Roman numerals for the resulting triads are provided.

When connecting root position triads in minor keys and altering the V chord to a major triad, there are specific rules to follow. For triads numbered 1-5, the common tone must be retained in the same voice. This means that one note from the previous triad remains the same in the next triad, creating a smooth connection between the chords. The Roman numerals assigned to these triads will depend on the key and the specific chord tones.

For triads numbered 6-10, the three upper voices (which refer to the soprano, alto, and tenor parts) move in contrary motion to the bass. This means that as the bass moves in one direction, the other three voices move in the opposite direction, creating harmonic and melodic interest. Again, the Roman numerals for these triads will depend on the key and the chord tones involved.

It's important to note that without specific key and chord information provided, it's not possible to provide the exact Roman numerals for each triad. The Roman numeral system is used to indicate the scale degree of each chord within a given key, and without that context, the specific chord symbols cannot be determined.

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Answer:

B 46.2

Step-by-step explanation:

Answer:46.2

Step-by-step explanation:

the answer is 46.2 becuase it says that f(x)=3 so then you would do 15.4*3

The factor of the expression will be (x + 1) and (x + 1). Then the product of two binomials will be (x + 1) and (x + 1).

It is a method for dividing a polynomial into pieces that will be multiplied together. At this moment, the polynomial's value will be zero.

The expression is given below.

⇒ x² + 2x + 1

Factorize the expression, then the factor of the expression will be

⇒ x² + x +  x + 1

⇒ x(x + 1)x + 1(x + 1)

⇒ (x + 1)(x + 1)

⇒ (x + 1)²

The product of two binomials will be (x + 1) and (x + 1).

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The loads carried by an elevator are found to follow a normal distribution with a mean weight of 1812 lbs, and a standard deviation of 105.3 lbs. The answer is c) [1606, 2018].

To answer this question, we need to use the concept of confidence intervals. A 95% confidence interval means that in 95% of all cases, the true population parameter (in this case, the weight of the elevator load) will fall within the interval.

To find the interval centered about the mean, we need to calculate the margin of error first. The formula for margin of error is:

Margin of Error = z*(standard deviation/square root of sample size)

Since we do not have a sample size here, we will use the population standard deviation instead.

For a 95% confidence level, the z-value is 1.96. So, plugging in the values we have:

Margin of Error = 1.96*(105.3/square root of 1)

Margin of Error = 205.97

Now, we can find the interval by adding and subtracting the margin of error from the mean:

Interval = [1812 - 205.97, 1812 + 205.97]

Interval = [1606.03, 2017.97]

Therefore, the answer is c) [1606, 2018].

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The volume V obtained by rotating the region bounded by the curves y = 3 sin x, y = 3 cos x, 0 ≤ x ≤ (pi/4) about y = 3 is (105/48)π or 6.9025.

To find the volume V obtained by rotating the region bounded by the curves y = 3 sin x, y = 3 cos x, 0 ≤ x ≤ (pi/4) about y = 3, we can use the disk method.

First, we need to find the equation of the line y = 3, which is the axis of rotation. Since the axis of rotation is a horizontal line, we can simply use y = 3.

Next, we need to find the radius of each disk at each value of x. The radius is the distance between the curve and the axis of rotation. Since we are rotating around y = 3, the radius is given by:

r = 3 - y

Now, we need to integrate the area of each disk over the given interval [0, pi/4]. The area of each disk is given by:

A = πr^2

Substituting r = 3 - y, we have:

A = π(3 - y)^2

The volume V is then given by integrating the area A over the interval [0, pi/4]:

V = ∫[0,pi/4] π(3 - y)^2 dy

V = π ∫[0,pi/4] (9 - 6y + y^2) dy

V = π [9y - 3y^2 + (1/3)y^3] |[0,pi/4]

V = π [(9(pi/4)) - 3((pi/4)^2) + (1/3)((pi/4)^3)]

V = (27/4)π - (9/16)π + (1/48)π

V = (105/48)π

Therefore, the volume V obtained by rotating the region bounded by the curves y = 3 sin x, y = 3 cos x, 0 ≤ x ≤ (pi/4) about y = 3 is (105/48)π.

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The problem can be solved using the simplex method, and the solution can be verified using the graphical method. The optimal solution is X1 = 6, X2 = 0, X3 = 6, Z = 24.

The problem can be solved using the simplex method, and verified using the graphical method. Here are the steps:

Convert the problem to standard form by introducing slack variables:
Min Z = -2X1 - 4X2 - 3X3 + 0S1 + 0S2 + 0S3
St. X1 + 3X2 + 2X3 + S1 = 30
X1 + X2 + X3 + S2 = 24
3X1 + 5X2 + 3X3 + S3 = 60
Xi, Si >= 0

Set up the initial simplex tableau:
| 1 3 2 1 0 0 30 |
| 1 1 1 0 1 0 24 |
| 3 5 3 0 0 1 60 |
| 2 4 3 0 0 0 0 |

Identify the entering variable (most negative coefficient in the objective row): X2

Identify the leaving variable (smallest ratio of RHS to coefficient of entering variable): S1

Pivot around the intersection of the entering and leaving variables to create a new tableau:
| 0 2 1 1 -1 0 6 |
| 1 0 0 -1 2 0 18 |
| 0 0 0 5 -5 1 30 |
| 2 0 1 -2 4 0 36 |

Repeat steps 3-5 until there are no more negative coefficients in the objective row. The final tableau is:
| 0 0 0 7/5 -3/5 0 18 |
| 1 0 0 -1/5 2/5 0 6 |
| 0 0 1 1/5 -1/5 0 6 |
| 0 0 0 -2 4 0 24 |

The optimal solution is X1 = 6, X2 = 0, X3 = 6, Z = 24.

To verify the solution using the graphical method, plot the constraints on a graph and find the feasible region. The optimal solution will be at one of the corner points of the feasible region. By checking the values of the objective function at each corner point, we can verify that the optimal solution found using the simplex method is correct.

In conclusion, the problem can be solved using the simplex method, and the solution can be verified using the graphical method. The optimal solution is X1 = 6, X2 = 0, X3 = 6, Z = 24.

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The lengths JL and PM are the lengths that make up the triangle JMP

The side length JL is twice the side length PN.

So, we have:

JL = 2 * PN

This gives

JL = 2 * 39

JL = 78

Hence, the length of JL is 78 units

The side length PM is half the side length KL.

So, we have:

PM = 0.5 * KL

This gives

PM = 0.5 * 95

PM = 47.5

Hence, the length of PM is 47.5 units

The angle MLK is congruent to the angle JMP.

So, we have:

MLK = JMP

This gives

MLK = 105 degrees

Hence, the measure of angle MLK is 105 degrees

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Elena made 2 batches of bird food, each with 1/8 cup cracked corn, 3/4 cups sunflower seeds, and 1/4 cup dried cranberries, for a total of 1.75 cups of bird food.

Elena made two batches of bird food using a combination of cracked corn, sunflower seeds, and dried cranberries. Each batch uses 1/8 cup of cracked corn, 3/4 cup of sunflower seeds, and 1/4 cup of dried cranberries.

To find the total amount of bird food she made, we need to add the ingredients of the two batches together.

Since she made two batches and each batch contains 1/8 cup of cracked corn + 3/4 cup of sunflower seeds + 1/4 of dried cranberries, the total amount of bird food is 2 × (1/8+3/4+1/4) = 2 × (7/8) = 7/4 = 1.75 cups.

This is the best estimate of the total amount of bird food made by Elena. It's important to note that this estimate is based on the assumption that the proportion of ingredients in each batch is the same, and that the ingredients are measured accurately.

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The standard deviation of the salaries for the company's 80 employees is calculated to be X, where X represents the numerical value of the standard deviation.

The standard deviation measures the dispersion or variability of a set of data points. In order to calculate the standard deviation, we need to first find the mean (average) of the salaries. Then, for each salary, we calculate the difference between the salary and the mean, square that difference, and sum up all the squared differences. Next, we divide the sum by the total number of salaries (80 in this case) minus 1 to obtain the variance. Finally, the standard deviation is obtained by taking the square root of the variance. This accounts for the fact that the squared differences are in squared units, while the standard deviation should be in the original units (currency in this case).

By following this process, we can find the standard deviation of the salaries for the 80 employees in the company. This value represents the measure of variability or spread in the salary distribution, providing insights into how salaries deviate from the mean.

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Answer:

x = 2/3

Step-by-step explanation:

2(x-2/3)=0

2x-1 1/3=0

2x=1 1/3

Devide both sides by 2

x=2/3

Answer:

A) Positive

Step-by-step explanation:

Answer:

positive

Step-by-step explanation:

as long as it is a straight line and it is not falling and rising again, it is positive

Answer:

no se amigos jajajajjajaaa no se

The probability that at least one of the dice has a value greater than or equal to 5 is 5/9. The probability that at least one of the dice has a value greater than or equal to 5 can be determined by calculating the probability of the complementary event and subtracting it from 1.

In this case, the complementary event is that both dice have a value less than 5. Since each die has six sides, and four of those sides have values less than 5, the probability of a single die having a value less than 5 is 4/6 or 2/3. The probability of both dice having a value less than 5 is then (2/3) * (2/3) = 4/9. Therefore, the probability of at least one die having a value greater than or equal to 5 is 1 - 4/9 = 5/9.

To calculate the probability that at least one of the dice has a value greater than or equal to 5, we can first determine the probability of the complementary event, which is that both dice have a value less than 5. Each die has six sides, so the probability of a single die having a value less than 5 is 4 out of 6, or 4/6, which simplifies to 2/3.

Since we are dealing with two dice, we need to consider the probability of both dice having a value less than 5. We can calculate this by multiplying the probability of one die having a value less than 5 by itself: (2/3) * (2/3) = 4/9.

To find the probability of at least one die having a value greater than or equal to 5, we subtract the probability of the complementary event from 1. So, the probability is 1 - 4/9 = 5/9.

Therefore, the probability that at least one of the dice has a value greater than or equal to 5 is 5/9.

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Answer:

someone help call the police candice just got shot

Step-by-step explanation:

ahahahahahahahhahaa

Answer:

3m

Step-by-step explanation:

1 month =3 movies

m month =3*m movies

Answer:

A: days: 2 and rental cost: 480

B: y=60x

Step-by-step explanation:

The daily rental cost is 60 dollars, because 180/3=60 and 300/5=60. Now you can say that y(rental cost) = 60x(daily cost times x(days).

Hope this helps! If you still have questions, just ask.

Let's assume the sum of the scores of the 28 students who took the test yesterday is 28 * 72 = 2016.

We know that the sum of the scores of all 30 students is (28 * 72) + x + y, where x and y are the scores of the two students who took the test this morning.

We also know that the mean of all 30 scores is 73. So we can write an equation:

[(28 * 72) + x + y]/30 = 73

Multiplying both sides by 30, we get:

2016 + x + y = 2190

So, x + y = 174.

We are given that the difference of the two scores is 22, so we can write another equation:

y - x = 22

Solving these two equations simultaneously, we get y = 98 and x = 76.

Therefore, the lower score from this morning is 76.

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The given limit can be expressed as the definite integral: lim (n→∞) n ∑(i=1 to n) i⁶/n⁷ = ∫[1/n, 1] x⁶ dx

To express the given limit as a definite integral, we need to determine the appropriate function f(x) and the integration limits b and 1.

Let's start by rewriting the given limit:

lim (n→∞) (1/n) ∑(i=1 to n) \(i^6/n^7\)

Notice that the term i⁶/n⁷ can be written as (i/n)⁶/n.

Therefore, we can rewrite the above limit as:

lim (n→∞) (1/n) ∑(i=1 to n) (i/n)⁶/n

This can be further rearranged as:

lim (n→∞) (1/n^7) ∑(i=1 to n) (i/n)⁶

Now, let's define the function f(x) = x⁶, and rewrite the limit using the integral notation:

lim (n→∞) (1/n^7) ∑(i=1 to n) (i/n)⁶ = ∫[a,b] f(x) dx

To determine the integration limits a and b, we need to consider the range of values that x can take. In this case, x = i/n, and as i varies from 1 to n, x varies from 1/n to 1. Therefore, we have a = 1/n and b = 1.

Hence, the given limit can be expressed as the definite integral:

lim (n→∞) n ∑(i=1 to n) i⁶/n⁷ = ∫[1/n, 1] x⁶ dx

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The value of x in the equation is x = -1 and x = -4.67

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

3x^2 + 13x + 4 = 0

This is a quadratic equation that can be solved using the quadratic formula:

x = (-b ± √(b² - 4ac)) / 2a

where a = 3, b = 13, c = 4

So, we have

x = (-13 ± √(13² - 4 * 3 * 4)) / 2 * 3

x = (-17 ± √(169 +- 48)) /6

x = (-17 ± 11) /6

Expand

x = (-17 + 11)/6 and x = (-17 - 11)/6

Evaluate

x = -1 and x = -4.67

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Answer:

33

Step-by-step explanation:

33= 11 * 3

99= 11 * 3 * 3

Answer:

33.

Step-by-step explanation:

33 = 3*11

99 = 3*3*11

The common factors are 3 and 11 so the GCF = 3*11 = 33.

The equation \(x^{3} - 3\) has x values as 0, \(\sqrt{3}\) and -\(\sqrt{3}\).

We are given,

3 is subtracted from the cube of a number.

Let the number be x then we can write it as:

 \(x^{3}\) - 3

We are to solve for x.

We can write the equation as:

\(x^{3}\) - 3  = 0

x ( \(x^{2}\)- 3 ) = 0

x = 0 and ( \(x^{2}\) - 3 ) = 0

x = 0 and \(x^{2}\) = 3

x = 0 and x = ±\(\sqrt{3}\)

So we have,

x  = 0, \(\sqrt{3}\) and -\(\sqrt{3}\)

Thus we have x values as 0, \(\sqrt{3}\) and -\(\sqrt{3}\).

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Answer:

The volume of water in the kiddie pool after 3 hours will be 357 cubic feet (ft³)

Height is the dimension that would relate to water level.

Step-by-step explanation:

The volume of a rectangular prism can be calculated using the formula

\(V = lwh\)

\(V\) is the volume

\(l\) is the length

\(w\) is the width

and \(h\) is the height

From the question,

When the day started the pool was completely full of water, that is, the volume of water in the pool will be the capacity of the rectangular prism kiddie pool.

From the question,

\(l\) = 6 feet

\(w\) = 7 feet

\(h\) = 10 feet

Hence,

\(V = 6 feet \times 7 feet \times 10 feet\)

\(V = 420 cubic feet (ft^{3} )\)

This is the volume of the water in the pool when the day started.

Also, from the question

After 3 hours, the water level had decreased by 1.5 feet, that is the height had decreased by 1.5 feet

Then, the new height is

10 feet - 1.5 feet = 8.5 feet

h = 8.5 feet

Now, to determine the volume after 3 hours

\(V = 6 feet \times 7 feet \times 8.5 feet\)

\(V = 357 cubic feet (ft^{3} )\)

Hence, the volume of water in the kiddie pool after 3 hours will be 357 cubic feet (ft³)

The dimension that would relate to water level will be the height.