Please answe number 1 PLEASE

Answer:

How can I help you?

Answer:

4kg=4m/s

8kg=?

3m/s

Step-by-step explanation:

12kgm/s/4kg

The relations given by the following sets of ordered pairs is a function is { ( 3 , - 3 ) , ( 3 , - 1 ) , ( 3 , 1 ) , ( 3 , 3 ) , ( 3 , 5 ) } .

What is a function?

A function is an equation which states relation between x and y variable.

How to solve?

a-{ ( 2 , - 8 ) , ( 1 , - 4 ) , ( 0 , 0 ) , ( 1 , 4 ) , ( 2 , 8 ) }

Here, x: x>1 ,x∈N, hence function is possible.

b.{ ( 3 , - 3 ) , ( 3 , - 1 ) , ( 3 , 1 ) , ( 3 , 3 ) , ( 3 , 5 ) }

here ,x can't be established as same x has different values.

c. {(−8,−3),(−6,−5),(−4,−2),(−2,−7),(−1,−4)}

Here, every x has it's unique value hence function can be established.

d.  { ( 1 , 2 ) , ( 2 , 3 ) , ( 3 , 4 ) , ( 5 , 6 ) , ( 2 , 1 ) }

Here, every x has it's unique value , hence function can be established.

∴option B -{ ( 3 , - 3 ) , ( 3 , - 1 ) , ( 3 , 1 ) , ( 3 , 3 ) , ( 3 , 5 ) } is one from which we can't establish function.

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Answer: 7x + 1

Step-by-step explanation:

(6x-4)+(x+5)

Step 1: Remove Parentheses:

              6x-4+x+5

Step 2: Combine Like Terms:

             7x +1

Answer:

D- 32 cubic units

Step-by-step explanation:

count each side and then multiple the numbers

Answer:

the answer is b, c, d, a, respectively

The expression that models the number of people attending concert 1 is given as follows:

512/6.

The number of people attending concert 1 is obtained applying the proportions in the context of the problem.

From the bar model, the fractions corresponding to each concert are given as follows:

The total number of people is given as follows:

512.

Hence the expression that models the number of people attending concert 1 is given as follows:

512/6.

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By making x the subject of the formula in this equation u = cos(0.5x)​ gives x = 2cos⁻¹(u).

In Mathematics and Geometry, an equation can be defined as a mathematical expression which shows that two (2) or more thing are equal. This ultimately implies that, an equation is composed of two (2) expressions that are connected by an equal sign.

In this exercise, you are required to make "x" the subject of the formula in the given mathematical equation by using the following steps.

By taking the arc cosine of both sides of the equation, we have the following:

u = cos(0.5x)

cos⁻¹(u) = 0.5x

By multiplying both sides of the mathematical equation by 2, we have the following:

2 × cos⁻¹(u) = 0.5x × 2

x = 2cos⁻¹(u)

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Answer:

1. The number of suite seats is 10% of the highest-priced seats, which is 10% of 92,000 = 9,200 seats.

2. The number of non-suite seats is 90% of the highest-priced seats, which is 90% of 92,000 = 82,800 seats.

3. The revenue generated from suite seats if all are purchased for one game is 9,200 x $200 = $1,840,000.

4. The revenue generated from non-suite seats if all are purchased for one game is 82,800 x $60 = $4,968,000.

5. The revenue earned at one sold-out game is the sum of the revenue from suite seats and non-suite seats: $1,840,000 + $4,968,000 = $6,808,000.

6. The net revenue of one sold-out game in which the nonconference team plays at the big stadium is the revenue earned at one sold-out game minus the payment to the nonconference team: $6,808,000 - $1,500,000 = $5,308,000.

Step-by-step explanation:

A function is a relationship between a few different inputs and an output, where each input can only lead to one possible outcome.

(i) The exponential function that models the decay of the substance is given by:

\(N(t) = Noe^(-0.088t)\)

(ii) If \(400g\) of the substance is present at to, then  \(No = 400g\) . Therefore, the amount of the substance remaining after 3 days is:

\(N(3) = 400e^(-0.0883) = 309.21g\)  (rounded to two decimal places)

(iii) The rate of change of the amount of the substance after 3 days is given by:

 \(dN/dt = -0.088N(3) = -0.088309.21 = -27.21 g/day\) (rounded to two decimal places)

(iv) To find the number of days it takes for half of the original \(400g\) of the substance to remain, we need to solve the equation:

\(N(t) = 0.5No\)

\(0.5No = Noe^(-0.088t)\)

\(0.5 = e^(-0.088t)\)

\(ln(0.5) = -0.088t\)

\(t = ln(0.5)/(-0.088) = 7.89 days\) (rounded to two decimal places)

Therefore, after  \(7.89\) days, half of the original  \(400g\) of the substance will remain.

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The resulting speed of the sailboat is 28.4 mph.

The direction of the boat is 80⁰.

The resulting speed of the sailboat is calculated by applying Pythagoras theorem as follows;

Vr = √(Vy² + Vx² )

where;

Vr = √(Vy² + Vx² )

Vx = 23 mph cos (90) + 7 mph cos(45)

Vx = 0 + 4.95 mph

Vy = 23 mph sin (90) + 7 mph sin(45)

Vy = 23 mph + 4.95 mph = 27.95 mph

The resultant speed of the sailboat is calculated as follows;

Vr = √ (27.95² + 4.95² )

Vr = 28.4 mph

The direction of the boat is calculated as follows;

θ = arc tan (Vy/Vx)

θ = arc tan ( 27.95 / 4.95 )

θ =  80⁰

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Answer:

i didnt see a screenie

Step-by-step explanation:

Answer:

9.4ft²

Step-by-step explanation:

The formula for the area of a rectangle is base*height, or b*h.

Since we know the final area of the room and one of the side lengths, we can plug those into the formula I just stated so that we get

15*h=141

All that's left to do is solve for h, which is the other side that we are solving for. To do this, we will divide 15 on both sides:

15h/15=141/15

The 15s on the left side cancel out, and we simply divide 141 by 15 to get our final answer of 9.4ft².

Given:

The random sample of 100 resident is selected.

The central limit theorem states that the distribution of sample means approximates a normal distribution as a sample size gets larger, regardless of the population's distribution.

As the given sample size is,

So, the sampling distribution of sample mean will be approximately normal. Since, the sample size of 100 resident is large.

Answer: the sampling distribution will be approximately normal.

1) The area of a circle circumscribed about a square is 307.7 cm².

2.a.) The angle ACB is 39 degrees.°.

2b.) The value of x is 5.42.

We shall find the radius to determine the area of a circle.

First,  find the side length of the square:

Since the perimeter of the square = 56 cm, then, each side of the square is 56 cm / 4 = 14 cm.

Next, find the diagonal of the square, using the Pythagorean theorem:

Diagonal = the diameter of the circumscribed circle.

Diagonal² = side length² + side length²

= 14 cm² + 14 cm²

= 196 cm² + 196 cm²

= 392 cm²

Take the square root of both sides:

Diagonal = √392 cm ≈ 19.80 cm (rounded to two decimal places)

Then, the radius of the circle which is half the diagonal:

Radius = Diagonal / 2 ≈ 19.80 cm / 2 ≈ 9.90 cm (rounded to two decimal places)

Finally, compute the area of the circle using the formula:

Area = π * Radius²

Area = 3.14 * (9.90 cm)²

Area ≈ 307.7 cm² (rounded to two decimal places)

Therefore, the area of the circle that is circumscribed about a square with a perimeter of 56 cm is 307.7 cm².

2. a) We use the property of angles in a circle to solve for angle ACB: an angle inscribed in a circle is half the measure of its intercepted arc.

Given that arc AB has a measure of 78°, we can find angle ACB as follows:

Angle ACB = 1/2 * arc AB

= 1/2 * 78°

= 39°

Therefore, the angle ACB is 39 degrees.

2b.) To solve for the value of x, we use the information that the angle ADB =  (3x - 12)⁴.

Given that angle ADB is (3x - 12)⁴, we can equate it to the measure of the intercepted arc AB, which is 78°:

(3x - 12)⁴ = 78

Solve the equation for x, by taking the fourth root of both sides:

∛∛((3x - 12)⁴) = ∛∛78

Simplify,

3x - 12 = ∛(78)

Isolate x by adding 12 to both sides:

3x - 12 + 12 = ∛(78) + 12

3x = ∛(78) + 12

Finally, divide both sides by 3:

x = (∛(78) + 12) / 3

x = (4.27 +12) / 3

x = 5.42

So, x is 5.42

Therefore,

1) The area of the circle is 154 cm².

2a.) Angle ACB is equal to 102°.

2b.) The value of x is 5.42

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The number of integers between 1 to 1,000 that are divisible by 2 and 3 but not by 5 is 133.

It should be noted that integers simply means a whole number that can be either positive, negative, or zero.

The numbers that can be divisible by 2 and 3 include 6, 12, 24, etc.

In this case, the number of integers between 1 to 1,000 that are divisible by 2 and 3 but not by 5 is 133.

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Answer:

Step-by-step explanation:

Answer:

b or c i think

Step-by-step explanation:

not for sure just a guess

Answer:

9.8 km/h

Step-by-step explanation:

Since there are 60 minutes in an hour, we can find his speed in km/h by multiplying 4.9 by 2.

4.9(2)

= 9.8

This means that he will travel 9.8 km in 60 minutes (1 hour).

So, his average speed is 9.8 km/h

Answer:

-3 is your answer

hope it will help you

The answer is -3. Hope this helps :)

The expression represents a quadratic polynomial.

The constant term is 1.

The leading term is -x².

The coefficient of the leading term is -1.

What is a polynomial?

A polynomial is a mathematical expression made up of coefficients and indeterminates that uses only the operations addition, subtraction, multiplication, and powers of positive integers of the variables.

Given expression is -x² + 1

The variable of the expression is x.

The constant term is 1.

Leading term: The highest power of the variable that occurs in the polynomial is its degree. The term with the highest degree—i.e., the term with the highest power of the variable—is the leading term. The leading coefficient is the leading term's coefficient.

The leading term of the expression is  -x² .

The coefficient of  -x²  is -1.

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Answer:

ADC and PQR are equal angels

Step-by-step explanation:

Step-by-step explanation:

Given Figure ABCD is congruent to figure RSPQ

Then by CPCT :

Angle A = angle R

Angle B = angle S

angle C = angle P

angle D = angle Q

Side AB = RS , BC = SP , CD = PQ , AD = RQ

Answer:

Step-by-step explanation:

f(x)=x-7

g(x) = x²

To find g(f(4)) we must first find g(f(x))

That's

To find g(f(x)) , substitute f(x) into g(x) that is for every x in g (x) replace it with f(x)

So we have

g(f(x)) = ( x - 7)² = x² - 7x - 7x + 49

g(f(x)) = x² - 14x + 49

Now to find g(f(4)) substitute the value of x that's 4 into g(f(x))

That's

g(f(4)) = 4² - 14(4) + 49

= 16 - 56 + 49

We have the final answer as

Hope this helps you

Answer:

x=11

Step-by-step explanation:

Answer:

0.41

Step-by-step explanation:

0.25 0.375 0.5 0.625

Answer:

D   28

Step-by-step explanation:

31 own 13-15

3 own 1-3

31 - 3 = 28

Answer:

D. 28

Step-by-step explanation:

1-3 had 31 people and 13-15 had 3 people.

Then we subtract the values (31-3) to get 28.

Answer:

66

Step-by-step explanation:

1. 100% of 55 is 55

2. 20% of 55 is the same thing as 1/5 of 55

3. 1/5 of 55 is 11

4. 11 + 55 = 66

Answer:

66

Step-by-step explanation:

55 100

x    120

cross-multiply

55*120= 6600

6600/100 = 66

Answer:

Step-by-step explanation:

Based on the information given, we know that the two triangles have two pairs of congruent angles. This is sufficient to prove that the two triangles are congruent using the AAS (Angle-Angle-Side) postulate. Therefore, the method I would use to prove the two triangles congruent is **AAS**.

Answer:

The answer is 140

Step-by-step explanation: