help 0lease need answers quick​

Answer:

A -1

Step-by-step explanation:

The coefficient is the number in front of a variable. since there isn't a number we can conclude that the y is only there once. There is 1 (one) y. Since it is subtracting in front of the coefficient, we can determine it is taking one away, or -1. So 6-y+3 is 6-1y+3.

Answer:

10/9

Step-by-step explanation:

average rate of change in 0≤x≤9

=(3-(-7))/(9-0)=10/9

Answer:

The solution is 10/9

Step-by-step explanation:

Step 1: identify the right approach:

Given a function g(x) over a period of time, to find the average rate of change of g(x) over this period of time, we divide the change in g(x) by the change in x.

Step 2: Perform the calculation:

As shown in picture,

x = 0 => g(x) = -7

x = 9 => g(x) = 3

=> The change of x over interval [0, 9] is:

x_change = 9 - 0 = 9

=> The change of g(x) over interval [0, 9] is:

g(x)_change = 3 - (-7) = 10

=> The average rate (r) of change of g(x) over interval [0, 9] is:

r = g(x)_change/x_change = 10/9

Hop this helps!

:)

Hey there mate ☺️!,

\( \frac{2}{3} \)yard of fabric = 2 feet of this fabric = which is used to make 1 scarf

\(1 \times \frac{3}{4} \) yards = ?

1 yard = 3 feet = 36 inches

\( \frac{3}{4} \) of 36

\( \frac{36}{4} \) = 9

→ 9 x 3 = 27

→ 36 + 27 = 63

Therefore, 63 inches of fabric means that she can make 2 scarves as 2 scarves would use 48 inches or 4 feet, since 1 scarf uses only 2 feet. She will also have 15 inches of extra fabric.

By Benjemin ☺️

Josh will cover a total distance of 38 kilometres while trekking in Glacier National Park, having already covered 17 km of the park's trails.

The idea that will be applied in this situation is the usage of models to simplify expression.

Josh was able to hike 17 km, and since this is 2 km short of being halfway done, we can create the equation that models the situation.

The model can be written as  [17 + 2 = (1/2)h ]

h =length of the hike.

then  we can substitute the values so that we can know the value of h,

[17 + 2 = (1/2)h ]

[19 =0.5h]

h = 38 km

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The properly written question:

Josh is hiking Glacier National Park. He has now hiked a total of 17 \text{ km}17 km17, space, k, m and is 2 \text{ km}2 km2, space, k, m short of being \dfrac12 ​2 ​ ​1 ​​ start fraction, 1, divided by, 2, end fraction of the way done with his hike.

Answer:

Pretty sure It's $1.40

Step-by-step explanation:

Sylas may not have enough money to buy the shoes with sales tax included. The sales tax on the shoes would be $18.60 (6% of $310), bringing the total cost to $328.60. This leaves Sylas with only $1.40 in his account. However, it is unclear if Sylas has any other sources of income or if he needs to pay for any other expenses. As for Tobias, his grandfather's account had earned $3,000 in simple interest. It is unclear if this is the full balance of the account or just the interest earned.

Answer:

1.40

Step-by-step explanatiom:

Recall that the following definitions :

- mean: given a set of n data points, the mean is simply the sum of the data points divided by the total number of data points

-median: To calculate the median, you organize the data from least to greatest, the data point that has the exactly amount of data on the right and on the left, is the median. If the number of data points is even, you should add the two points that are "in the middle" and divide them by 2. Example

for the data set 5 4 2 3 1, if we organize it we get 1 2 3 4 5, so the median is 3. If we have the data set 1 2 3 4, there is no middle point, so we take 2 and 3, that are in the "middle" , we add them (2+3 =5) and divide them by 2 (2.5). So the median is 2.5

- the mode is the data point that has more observations, for example in the dataset 1 2 3 4 1 1 the mode is 1 since it appears 3 times.

a) The mean exists for every dataset. The median exists for every dataset that has more than two datapoints. In this case the mode is 63, so the three of them exist for this data set.

b) The smallest value is 31. Since we replace it by 27, the mean gets affected. Since we have the same amount of data and 27 is the smalles point, the median doesn't change. Since the occurrence of 27 is only one, the 27 remains unchanged. So only the mean changes.

c) If we remove 31, we will have less data, so the median changes. As before, the mean also changes. However, the mode remains the same.

d) If we calculate the mean of the dataset, we get that the mean is 61.5. The median is 63, so the median is greater.

Answer:

Yes

8 ft

Step-by-step explanation:

The equation of the arch is

\(y=-0.0625x^2+1.25x+5.75\)

Differentiating with respect to \(x\) we get

\(\dfrac{dy}{dx}=-2\times 0.0625x+1.25=-0.125x+1.25\)

Equating with zero

\(0=-0.125x+1.25\\\Rightarrow x=\dfrac{-1.25}{-0.125}\\\Rightarrow x=10\)

Double derivative of the equation

\(\dfrac{d^2y}{dx^2}=-0.125<0\)

So, the function is maximum at \(x=10\)

\(y=-0.0625x^2+1.25x+5.75=-0.0625\times 10^2+1.25\times 10+5.75\\\Rightarrow y=12\)

The function is maximum at \((10,12)\)

So, the truck's center should be below the point \((10,12)\) for maximum width to pass through.

Now truck is 11 feet tall so \(y=11\)

\(11=-0.0625x^2+1.25x+5.75\\\Rightarrow -0.0625x^2+1.25x-5.25=0\\\Rightarrow x=\frac{-1.25\pm \sqrt{1.25^2-4\left(-0.0625\right)\left(-5.25\right)}}{2\left(-0.0625\right)}\\\Rightarrow x=6,14\)

The maximum width of the truck can be \(14-6=8\ \text{ft}\) if it is 11 feet tall.

So, the truck which has a width of 7 feet can fit under the arch.

Let the smaller angle be

The larger angle is 4 times bigger than the smaller angle means

Concept:

The sum of two or more angles on a straight line is always 180°

Therefore,

By substituting the value of y=4x in the equation above, we will have

substitute the value of x= 36° in y=4x to find the value of the bigger angle

Hence,

The larger angle is =144 °

OPTION D IS THE CORRECT ANSWER

Answer:

A

Step-by-step explanation:

my Feb H2 hd ECU TF2 ACTH GVC ect 5th of T2 te BG f

Answer:

A. 5.25 miles or 5 1/4 miles

B.  4.75 miles or 4  3/4  miles

C. 5.75 miles or 5 3/4  miles

Step-by-step explanation:

I counted  every small line and then multiplied by 1/4

Answer:

15 cups of grapefruit juice

Step-by-step explanation:

60 / 4 = 15

Therefore, 15 cups of grapefruit juice were needed.

Hope this helps :)

Tell me if this is wrong

Answer:

This is the equation: y = -100x + 500

The length of the parametric curve is L ≈ √27 - 1 units.

To find the length of the parametric curve defined by x = 4 + 3/2 t and y = 6 + t^(3/2) with the interval 0 ≤ t ≤ 2, we need to compute the arc length of the curve. We can use the arc length formula for parametric equations:

L = ∫(from a to b) √(dx/dt)^2 + (dy/dt)^2 dt

First, find the derivatives of x and y with respect to t:
dx/dt = 3/2
dy/dt = (3/2)t^(1/2)

Next, square these derivatives and sum them:
(3/2)^2 + ((3/2)t^(1/2))^2 = 9/4 + (9/4)t

Now, take the square root of the sum:
√(9/4 + (9/4)t) = √(9/4(1 + t))

Finally, evaluate the integral with the given limits:
L = ∫(from 0 to 2) √(9/4(1 + t)) dt

To solve the integral, use a substitution method by setting u = 1 + t, du = dt. The new limits are 1 ≤ u ≤ 3. Then, the integral becomes:

L = ∫(from 1 to 3) √(9/4u) du

This integral can be rewritten as:

L = (3/2)∫(from 1 to 3) √u du

Now, evaluate the integral:

L = (3/2)[(2/3)u^(3/2)] (from 1 to 3)
L = (3/2)(2/3)[u^(3/2)] (from 1 to 3)
L = u^(3/2) (from 1 to 3)
L = (3^(3/2)) - (1^(3/2))
L = √27 - 1

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Answer:

1100

Step-by-step explanation:

783 rounded to the nearest hundred is 800

329 rounded to the nearest hundred is 300

800+300=1100

The estimation of 783 + 329 = 1100.

Although the term "rounding" is a general one, we typically use the terms "round up" or "round down" to indicate whether the number has gone up or down after being rounded. The supplied number is said to be rounded up when the rounded number is increased, and it is said to be rounded down when the rounded number is dropped.

Given:

783 + 329

Now rounding off nearest hundred

783 rounded off to 800

and, 329 rounded off to 300.

So, 800+ 300 = 1100

Hence, the estimation is 1100.

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The length of MN, to the nearest tenth of a unit is equal to: C. 14.4 units.

In order to determine the missing side length of a geometric figure with the adjacent and hypotenuse side lengths given, you should apply the law of cosine:

C² = A² + B² - 2(A)(B)cosθ

Where:

A, B, and C is the length of side of a given triangle.

By substituting the given side lengths and angle into the law of cosine formula, we have the following;

MN² = LM² + LN² - 2(LM)(LN)cosθ

MN² = 12² + 10² - 2(12)(10)cos(52)

MN² = 144 + 100 - 147.76

MN = √96.24

MN = 9.8 units.

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Answer:

81 and above

Step-by-step explanation:

They have to be 81 and above

93+69+89+97=348

348/4=87 (average)

87=81=168

168/2= 84 (average)

Answer:

72 or higher hope i helped

Step-by-step explanation:

93 +69 +89+97+x/5= 84

348 +x/5=84

84x5=420

420-348=72

The value of T(v), express v as linear combination in the basis B and the matrix representation of T obtain is T(v) = [4, -4].

To find T(v), we need to express v as a linear combination of the basis vectors of R^3 with respect to B:

v = (-1)[0] + (-1)[0] + (1)[1]

This means that the coordinate vector of v with respect to B is [-1, -1, 1].

To find the matrix representation of T with respect to the standard bases of R^3 and R^2, we can apply T to each of the basis vectors:

T([1, 0, 0]) = [1, 3]

T([0, 1, 0]) = [-1, 1]

T([0, 0, 1]) = [2, -2]

We can arrange the results in a matrix:

[1 -1 2]

[3 1 -2]

The matrix [1 -1 2; 3 1 -2] represents T with respect to the standard bases of R^3 and R^2.

To find T(v), we can multiply the matrix representation of T with the coordinate vector of v with respect to B:

T(v) = [1 -1 2; 3 1 -2] * [-1; -1; 1] = [4; -4]

Therefore, T(v) = [4, -4].

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To find the frequency of the notes, we can use the formula:

Frequency of a note = Frequency of reference note * \((2^{n/12})\)

where n is the number of half-steps above or below the reference note.

(a) Four half-steps above middle C:

Frequency = \(260 * (2^{4/12})\)

Frequency ≈ 293.665 Hz

(b) A fourth (five half-steps) above middle C:

Frequency = \(260 * (2^{5/12})\)

Frequency ≈ 329.628 Hz

(c) Two octaves and a fifth (seven half-steps) above middle C:

Frequency = \(260 * (2^{7/12})\)

Frequency ≈ 523.251 Hz

(d) Twenty half-steps above middle C:

Frequency = \(260 * (2^{20/12})\)

Frequency ≈ 1648 Hz

Therefore, the frequencies of the notes are:

(a) Approximately 293.665 Hz

(b) Approximately 329.628 Hz

(c) Approximately 523.251 Hz

(d) Approximately 1648 Hz

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Answer: m+8 =

Step-by-step explanation:

a. The probability of two heads occurring, given that the first toss is a head, is 1/2.

b. The probability that both tosses are the same, given that the first toss is a tail, is 1/2.

c. The total probability of two heads occurring, given that at least one head occurs, is 1/4 + 1/4 = 1/2.

Probability is a way to gauge how likely something is to happen. Many things are difficult to forecast with absolute confidence. Using it, we can only make predictions about the likelihood of an event happening, or how likely it is.

(a) To calculate the probability of two heads occurring given that the first toss is a head, we only need to consider the second toss. Since the coin is fair, the probability of getting a head on the second toss is also 1/2. Therefore, the probability of two heads occurring, given that the first toss is a head, is 1/2.

(b) If the first toss is a tail, then the second toss can either be a head or a tail. Since the coin is fair, the probability of getting a head on the second toss is 1/2, and the probability of getting a tail on the second toss is also 1/2. Therefore, the probability that both tosses are the same, given that the first toss is a tail, is 1/2.

(c) To calculate the probability of two heads occurring given that at least one head occurs, we need to consider two cases: HH (both tosses are heads) and HT (the first toss is a head and the second toss is a tail).

The probability of HH occurring is 1/2 * 1/2 = 1/4, as each toss is independent and has a probability of 1/2.

The probability of HT occurring is 1/2 * 1/2 = 1/4, as the first toss is a head with a probability of 1/2, and the second toss is a tail with a probability of 1/2.

Therefore, the total probability of two heads occurring, given that at least one head occurs, is 1/4 + 1/4 = 1/2.

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Answer:

\(\displaystyle \theta \approx 36.4\)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Trigonometry

Step-by-step explanation:

Step 1: Define

Identify variables

Angle θ

Opposite Leg = 31

Adjacent Leg = 42

Step 2: Find Angle

The requried water in Juan's body weight is 57.13 kilograms or 117.13 pounds

To find out how much water is in Juan's body weight, we need to multiply his body weight by the percentage of his weight that is water:

Water weight = Body weight × Percentage of body weight that is water

First, we need to convert Juan's weight from pounds to a more convenient unit for the calculation, such as kilograms:

185 pounds = 84.09 kilograms

Now we can calculate the water weight:

Water weight = 84.09 kg x 68/100 = 57.13 kg

Therefore, the water in Juan's body weight is 57.13 kilograms or 117.13 pounds

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Answer:

what are the following??

Step-by-step explanation:

Answer:

Dependent

Step-by-step explanation:

Two events are said to be dependent when the outcome of the first event is  related to the other.

When two events, A and B are dependent, the probability of occurrence of A and B is:

P(A and B) = P(A) · P(B|A)

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Two events are dependent if the occurrence of one is related to the probability of the occurrence of the other.

If two events A and B depend on each other, then the probability  of A and B occurring is

P(A and B) = P(A)  P(B|A)

Two events are dependent if the occurrence of one is related to the probability of the occurrence of the other.

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Answer:

k<-5

Step-by-step explanation:

You divide both sides by 7, but you don't flip the inequality sign because you're dividing by a positive number. Therefore, you get k<-5.

Answer:         ✯                   ✶                     ✺                    ✺            ❇︎       ❄︎       ❆

k<-5

Step-by-step explanation:

Just divide -35 by 7 to isolate k!

Divide both sides by 7! Then, we don't flip the inequality sign.

Something my Algebra teacher told me:

"If we multiply or divide by a negative number, we do the "inequality flip."

Hope it helps!

Now PLS mark Brainliest! PLEASE! :)

Answer:

17 and 18

Step-by-step explanation:

I'm pretty sure the two integers are 17 and 18

(let me know if I'm wrong)

Answer:

740

Step-by-step explanation:

Let the AP be a, a+d, a+2d, a+3d, ...

The  term of AP is given by:

\(t n =a+(n-1)d\)

We are given that the third term is 7.

\(t 3=7\)

⇒  \(a+(3-1)d=7\)

⇒\(a+2d=7 ---(1)\)

Also, the seventh term is 2 more than three times the third term.

\(t7=3t3+2\)

⇒\(a+ (7-1)d=3(a+(3-1)d)+2\)

⇒\(a+6d=3(a+2d)+2\)

⇒\(a+6d=3a+6d+2\)

⇒\(-2a=2\)

⇒\(a=-1\)

We can put it in (1)

\(a+2d=7\)

⇒\((-1)+2d=7\)

⇒\(2d=8\)

⇒d=4

Now, the Sum of n terms of an AP is given by the formula:

\(sn=\frac{n}{2}(2a+(n-1)d)\)

So, Sum of first 20 terms would be:

\(s 20=\frac{20}{2}(2(-1) +(20-1) x 4)\)

⇒\(s20=10(-2+19 x 4)\)

⇒\(s 20=10 x(-2+76)\)

⇒\(s 20= 10 x 74\)

⇒\(s 20=740\)

Thus, The Sum of first 20 terms of the AP is 740.

Answer:

6.5 x 10^(-7)

Step-by-step explanation:

When multiplied by 10, it is like multiplying by 10^1. We can use the exponent rule: 10^(-8) * 10^1 = 10^(-7).

Example:

1.3 x 10^2 multiplied by 10

This is the same as 130 multiplied by 10 which is equal to 1300.

1300 written in scientific notation is 1.3 x 10^3, which adds one more onto the exponent.

Answer:

\(x=\frac{90}{13} .\)

Step-by-step explanation:

\(\frac{x}{2} +\frac{x}{3} =\frac{2x}{5} +3;\)

\(30*(\frac{x}{2} +\frac{x}{3} )=30*(\frac{2x}{5} +3);\)

15x+10x=12x+90; ⇔ 13x=90;

\(x=\frac{90}{13}.\)