can someone help me with this I'm stuck​

Step-by-step explanation:

solved by Pythagoras theorem

so 4²+b²=16²

so 16+b²=256

so b²=256-16

b²= 240

b= 15.49

rounding=15.5

pls gimme brainliest I need it you didn't gimme last time

Answer:

2

Step-by-step explanation:

Answer:

2, D

Step-by-step explanation:

Not only is it not in a line it doesn't hit any points(it curves)

Answer:

(500÷1.8)÷60

By dividing 1.8 out of 500, u can know

Answer:

6) B

7) D

8) C

9) A

Step by step explanation:

6) Brand A sold 12 notebooks

Brand B sold 28 notebooks

7)

8) 30 pieces of 100-peso bills

10 pieces of 50-peso bills

9) 4 packages have 2 pieces

6 packages have 3 pieces.

(a) The surface area of the cylinder is

                 \(2\pi r(r+h) = 2\pi *6*(6+4) = 376.991\\\)  square centimeters

(b) The Volume of the cylinder is

                 \(\pi r^{2} h = \pi (6^{2} )*4 =452 .389\)  cubic centimeters

(c)  The more volume option is choice 1.

             \(\pi r^{2} h = \pi (12^{2} )*4 = 1809.557\\\\\pi r^{2} h = \pi (6^{2} ) *12 = 1357.168\\\)

Hope that helps!

Answer:

(a) The surface area of the cylinder is

2πr(r+h)=2π*6*(6+4)=376.991 square centimeters

(b) The Volume of the cylinder is

πr²h= π(6²)*4=452.389 cubic centimeters

(c)  The more volume option is choice 1.

πr²h= π(12²)*4=1809.557

πr²h= π(6²)*12=1357.168

Answer:

cindy is 51

Step-by-step explanation:

70 divided by 2 is 45

45+ 6 is 51

Answer: Uhhhh there are no names for me to choose from- but it's basically any shape with straight lines and is closed. hope this helps

Step-by-step explanation:

Answer:

You should expect her to be wrong 32 times.

Step-by-step explanation:

For each forecast that she makes, there are only two possible outcomes. Either she is correct, or she is not. The probability of she being correct on a forecast is independent of other forecasts. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The expected value of the binomial distribution is:

\(E(X) = np\)

0.8 chance of being correct.

So 1 - 0.8 = 0.2 change of being wrong, which means that \(p = 0.2\)

160 forecasts:

This means that \(n = 160\)

How many of these times would you expect she is wrong?

\(E(X) = np = 160*0.2 = 32\)

You should expect her to be wrong 32 times.

Answer:

144 degrees

Step-by-step explanation:

Answer:

It is safe

Step-by-step explanation:

Using trigonometry :

Cosθ = adjacent / hypotenus

Hypotenus = length of ladder = 12 feets

Adjacent = distance between ladder and wall = 3 feets

Cosθ = 3 /12

Cosθ = 0.25

θ = cos^-1(0.25)

θ = 75.522°

To be safe ladder must be between (70 - 85)°

Sijce ladder is at an elevation of 75.22° ; then it is safe.

Given

To find:

The system of equation.

Explanation:

It is given that,

That implies,

Since,

Then,

Therefore,

The system of equation is,

Hence, the answer is option A).

Answer:

bedroom is 12ft which is equal to 6ft on left of bathroom if we add 6 +6=12 because it is rectangle and bathroom is square and square have 4 equal sides so both sides are 12ft

Replace all occurrences of x with y + 3 in each equation.

Replace all occurences of x in 6x - 5y = 15 with y + 3.

6 (y+3) -5y = 15

x = y + 3

Simplify 6 (y + 3) - 5y.

Simplify each term.

Apply the distributive property.

6y + 6 · 3 - 5y = 15

x = y + 3

Multiply 6 by 3.

6y + 18 - 5y = 15

x = y + 3

Subtract 5y from 6y.

y + 18 = 15

x = y + 3

Move all terms not containing y to the right side of the equation.

Subtract 18 from both sides of the equation.

y = 15 - 18

x = y + 3

Subtract 18 from 15.

y = -3

x = y + 3

Replace all occurences with y with -3 in each equation.

Replace all occurences of y in x = y + 3 with -3.

x = (-3) + 3

y = -3

Add -3 and 3.

x = 0

y = -3

The solution to the system is the complete set of ordered pairs that are valid solutions.

(0,-3)

The result can be shown in multiple forms.

Point Form:

(0,-3)

Equation Form:

x = 0, y = -3

\(▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪\)

The required values are :

Refer to the attachment for solution ~

Answer:

Step-by-step explanation:

Let r be a multiplier.  Then 2r + 3r + 4r = 24, or

9r = 24, or r = 24/9 = 8/3

The three numbers are then (8/3)(2), (8/3)(3), (8/3)(4), and their sum is

(8/3)(2 + 3 + 4) = (8/3)(9) = 24.  But the problem tells us that!  Please check the wording of your question; something's not quite right there!

Answer:

verticle

you are correct

Step-by-step explanation:

Answer:

the answer is currently incorrect x is horizontal

Step-by-step explanation:

trust me I gurante this

Answer:

1. \(p \leq 10\) where \(p\) represents the total number of people.

2. \(p \geq 8\) where \(p\) represents the total number of people.

3. \(c \leq 60\) where \(c\) represents the cost of a pair of jeans.

4. \(p > 20\) where \(p\) represents the total number of people.

Step-by-step explanation:

Question 1 explanation: Since no more than 10 people are allowed in the elevator, that means 10 and under are allowed, so the inequality would be \(p \leq 10\).

Question 2 explanation: Since the tour bus needs at least 8 people to sign up to run, that means 8 and more people will allow the tour bus to run, so the inequality would be \(p \geq 8\)

Question 3 explanation: Since the most you will pay for a pair of jeans is $60, that means jeans costing $60 and under are fine, so the inequality would be \(c \leq 60\).

Question 4 explanation: Since over 20 people showed up to the party, that means there were more than 20 people at the party, so the inequality would be \(p > 20\).

The length of the longer base of the trapezoid could be 0.75 units, \(\frac{7}{3}\) units, 4 units.

A trapezoid, commonly referred to as a trapezium, is a quadrilateral or a polygon with four sides. It has a set of parallel opposing sides and a set of non-parallel sides. The bases and legs of the trapezoid are known as the parallel and non-parallel sides, respectively.

Given: The original length of trapezoid= 6 units

The scale factor of less than 1

So, compare the given lengths with the trapezoid longer base length,

0.75 units<6 units

\(\frac{7}{3}\) units<6 units

8.75 units< 6 units

But, 12 units> 6 units

Therefore, the length of the longer base can be 0.75, \(\frac{7}{3}\), 4 units.

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The complete question is:

“ Qusai made a scaled copy of the following trapezoid. He used a scale factor less than 1.What could be the length of the longer base of the scaled copy of the trapezoid?

Choose 3 answers:

Answer:

b = (A - lw) / 0.5h

Step-by-step explanation:

The formula for area of the enclosed place is

A=lw+0.5bh

Where,

A= Area of the enclosed space

l= length of the rectangle

w= width of the rectangle

b= base of the triangle

h= height of the triangle

A=lw+0.5bh

Solve for b

A=lw+0.5bh

Subtract lw from both sides

A - lw = lw + 0.5bh - lw

A - lw = 0.5bh

Divide both sides by 0.5h

(A - lw) / 0.5h = (0.5bh) / 0.5h

(A - lw) / 0.5h = b

Therefore,

b = (A - lw) / 0.5h

Answer:

b= A-lw over 0.5h

Step-by-step explanation:

Answer:

8677

Notice that all the numbers in the sequence are divisible by 3 except 8677.

The sum of the digits must be divisible by 3.

8+6+7+7= 2+8 =10

10 isn't divisible by 3.

An Agile methodology aims for customer satisfaction through early and continuous delivery of useful software components developed by an iterative process using the bare minimum requirements.

Agile methodology is a software development approach that emphasizes flexibility, collaboration, and iterative development. It focuses on delivering value to customers by prioritizing their satisfaction and adapting to changing requirements throughout the development process. Agile methodologies, such as Scrum or Kanban, promote regular and incremental delivery of working software components.

This allows customers to provide feedback early on, ensuring that the final product meets their needs. By using an iterative approach, Agile methodologies enable teams to continuously refine and improve the software based on customer feedback and changing priorities. The emphasis on delivering useful software components and involving customers throughout the development process sets Agile apart from traditional waterfall methodologies.

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Answer:

Perimeter= 20 cm

Area = 25 cm^2

Difference between 28cm^2 and 8cm^2= 20cm^2

Step-by-step explanation:

The formula to calculate the perimeter of a square is P= 4 * (the length of any side or "s").

Therefore:

P = 4 * 5cm

P = 20 cm

The formula for calculating the area of a square is A= (length of any side or "s")^2

So:

A= 5cm^2

A= 25cm^2

Remember the units in your answer!

The difference between indicates subtraction, and 28cm^2 and 8 cm^2 are like terms so:

28cm^2 - 8 cm^2 = 20 cm^2

Answer:

  about 3.08 L

Step-by-step explanation:

You want the number of litres in the volume of a cylindrical can 14 cm in diameter and 20 cm high.

A litre is a cubic decimeter, 1000 cubic centimeters. As such, it is convenient to perform the volume calculation using the dimensions in decimeters:

The volume of the cylinder is given by the formula ...

  V = (π/4)d²h . . . . . . . where d is the diameter and h is the height

  V = (π/4)(1.4 dm)²(2.0 dm) ≈ 3.079 dm³ ≈ 3.08 L

The cylindrical can will hold about 3.08 litres.

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Making use of Pythagorean theorem in the triangle with vertices at A(-3, 1), B(6, 0), and C(2, 5), we have;

Leg lengths;

Hypotenuse length;

The given coordinates of the vertices of the triangle are; A(-3, 1), B(6, 0), C(2, 5)

Therefore, the point A of the triangle is in the second quadrant, while points B and C are in the first quadrant.

The above description corresponds with the triangle in option D.

The square of the lengths of the sides are;

(AB)² = (6 - (-3))² + (0 - 1)² = 82

(BC)² = (6 - 2)² + (0 - 5)² = 41

(AC)² = (2 - (-3))² + (5 - 1)² = 41

Which gives;

(AB)² = 82 = 41 + 41 = (BC)² + (AC)²

Therefore, according to Pythagorean theorem triangle ABC is a right triangle and the legs of triangle ABC are BC and AC

The lengths of the legs are therefore;

The length of the hypotenuse;

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Answer:

12+27a

Step-by-step explanation:

3(4+9a)=3(4)+3(9a)=12+27a

The value of b² - 4ac for the equation x² + 5x + 4 = 0 is 9.

What is the discriminant of a polynomial?

The discriminant of a polynomial is a function of its coefficients and is represented by the capital ‘D’ or Delta symbol (Δ). It shows the nature of the roots of any quadratic equations where a, b, and c are real numbers.

It is represented as ‘D’

D = b² - 4ac

Where,

a is the coefficient of x²

b is the coefficient of x

c is a constant term

x² + 5x + 4 = 0

We have given:

x² + 5x + 4 = 0

Comparing the equation with the standard form.

a = 1, b = 5 and c = 4

Substituting it in the formula

D = 5² - 4 × 1 + 4

By further calculation

D = 25 - 16

D = 9,

The quadratic roots are real and distinct

Therefore, the value of b² - 4ac is 9.

Hence, The value of b² - 4ac for the equation x² + 5x + 4 = 0 is 9.

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In this solution, each molecule of (NH₄)₃PO₄ dissociates into three ammonium ions (NH₄₊) and one phosphate ion (PO4₃₋), resulting in a total of 4 ions per molecule. Hence, the Van 't Hoff factor for this solution is 4.

The Van 't Hoff factor (i) is a measure of the degree to which a substance ionizes in a solution, and is defined as the ratio of the number of ions formed to the number of molecules (or formula units) dissolved. For the case of a solution of (NH₄)₃PO₄, the Van 't Hoff factor is 4. The Van 't Hoff factor is a measure of the extent to which an ionic substance dissociates into individual ions when dissolved in water. It is defined as the ratio of the number of ions formed to the number of formula units or molecules of the substance that are dissolved. For a solution of (NH₄)₃PO₄, the Van 't Hoff factor is 4 because each molecule dissociates into 3 ammonium ions (NH₄₊) and 1 phosphate ion (PO4₃₋), resulting in a total of 4 ions per molecule. The Van 't Hoff factor is important in determining the colligative properties of solutions, such as boiling point elevation and freezing point depression.

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Answer:

31.21

Step-by-step explanation:

Answer:

23 because i had this test before