Please help me with this i dont get it

Answer: 1.71

Step-by-step explanation:

Answer:

(n-2)2 is in the formula (a-b)2 = a2- 2ab + b2

correct it by writing (n-2)2 = (n2 - 2(n)(2) + 2 raise 2)

Answer:

-2 * -2 = 4, but Maryam put -4 instead.

Answer:

I am pretty sure it is 1.

Step-by-step explanation:

I am doing addition and subtraction methods.

Answer: Let's solve each equation step by step to determine the number of solutions:

3/2(2x+6)=3x+9

First, we distribute the 3/2 on the left side:

3x + 9 = 3x + 9

Subtracting 3x from both sides, we get:

9 = 9

This means that the equation is an identity and is true for all values of x. Therefore, it has infinitely many solutions.

3x+5=3(x+5)

Expanding the right side:

3x + 5 = 3x + 15

Subtracting 3x from both sides, we get:

5 = 15

This is a contradiction, so the equation has no solution.

x+4x+4=3(2x-1)

Simplifying the left side:

5x + 4 = 6x - 3

Adding 3 to both sides and subtracting 5x from both sides, we get:

7 = x

Therefore, the equation has one solution, x = 7.

6x+4x+1=2(5x+1)

Simplifying both sides:

10x + 1 = 10x + 2

Subtracting 10x from both sides, we get:

1 = 2

This is a contradiction, so the equation has no solution.

Step-by-step explanation:

Answer:

Step-by-step explanation:

a

Answer:

f(x)=4x

Step-by-step explanation:

Let's look at the progression of f(x) values as the x value goes up. The x value goes up in steps of 1, but the f(x) value goes up in steps of 4. This means that the f(x) value grows 4 times faster than the x value. Comparing them side by side, you can see that each f(x) value is indeed 4 times larger than the corresponding x value. Therefore, the descriptive function is f(x)=4x.

Answer:

x = 6

Step-by-step explanation:

Step 1:

5 1/2x + 2/3x = 37

Step 2:

5 3/6x + 4/6x = 37

Step 3:

6 1/6x = 37

Step 4:

37/1 times 6/37

Answer:

x = 6

Hope This Helps :)

Answer: for the first ss, c > 32

we can say this is true because she needs to buy MORE THAN 8 pound of candy, for 4 dollars each, given that the question wants us to find the amount of MONEY she spends on the candy, you have to factor in that each pound of candy equals 4 dollars, 4 x 8 = 32, but it needs to be a greater than inequality because she wants to buy MORE THAN 8 pounds of candy.

for ss number 2. your answer is 58, and i honestly cannot explain how i got the answer, other than literally plugging in numbers

kind of an annoying answer, im sorry, but i really couldnt explain ss 2 if i tried

also looking back at ss 1 let me know if there is more to that question since i might have looked at it wrong, the answer holds true, but they might be looking for more than 1 way to find that answer

Answer:

192 hours per day / 8 hours per person per day = 24 people

Step-by-step explanation:

Assuming each person works for 8 hours a day, the total number of hours needed to complete the project is:

720 person-days x 8 hours = 5,760 hours

To complete the project in 30 days, the total number of hours needed per day is:

5,760 hours / 30 days = 192 hours per day

Answer: (-7,5) and (-3,5) :) there for answer is A

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Here are the pairs matched with their products:

- (-5)(4.2) matches with -21

- (-7)(-3) matches with 21

- (2.5)(-9) matches with -22.5

Pairs (4) and (5) do not have corresponding products in the given options.

Answer:

556.2% change

Step-by-step explanation:

Percentage change = (p2-p1)/p1 * 100%

= (58.99 - 8.99) / 8.99 * 100%

= 556.2% change

Mark brainliest if this helped

Mark brainliest if this helped

Answer:

a

Step-by-step explanation:

Recall that the "point-slope" form of a linear equation may be expressed as

y = mx + b,

where  m is the gradient.

If m is negative, the gradient is negative.

If m is positive, the gradient is positive.

In our case, if we consider option A,

x + 3y = -2  (rearranging)

3y = -x -2

y = (-1/3) x - (2/3)

if we compare this to the general equation at the top, we can see that

gradient, = m = (-1/3) which is negative.

hence option a has a negative gradient.

Answer:

A. x+3y = -2

y  = mx+b

3y = -x-2

m = -1

Step-by-step explanation:

Answer: B-32

Step-by-step explanation:

Hello! All angles of a triangle add up to 180 degrees.  Since triangles add up to 180 degrees, you know that the measure of angle m in the first triangle is 105 degrees.  Because all sides in congruent triangles and all angles in congruent triangles are also congruent, you know that the second triangle has to have the same angle measurements as the first. P or Q could have the angle measurements of 32 degrees or 43 degrees. Q is the angle with 43 degrees because it is clearly the longer side and looks like the first triangle's side with 43 degrees.  P is the angle with 32 degrees because it is the shorter side.

Answer:

The student answers 15 answers correctly.

Answer:

15

Step-by-step explanation:

hope it helps

This is really hard to explain how to do in words, so I will give you physical movements to perform.

For the first one, draw the graph, then rotate the paper. Redraw the graph on another paper, but draw the triangle where it is on the rotated paper.

For the second, draw the graph, then flip the paper. Place the paper on a light source and trace it on the back.

These strategies are much easier than actually mathing through it, and take much less energy and time.

Answer:

Step-by-step explanation:

Answer:

12x12 12x6 H = 46cm

Step-by-step explanation:

took quiz

Answer:

46 cm

Step-by-step explanation:

I learned this formula in math last year

Here is an example of how to draw an isosceles trapezoid:

   _______

 /                 \

/_________\

In this trapezoid, the two parallel sides (the top and bottom sides) are of equal length, and the two non-parallel sides (the left and right sides) are also of equal length. The angles between the top and left sides and between the top and right sides are equal, as are the angles between the bottom and left sides and between the bottom and right sides.

An isosceles trapezoid is a type of trapezoid where the two non-parallel sides of the trapezoid are of equal length. This means that the trapezoid has a line of symmetry through its mid-point, which divides the trapezoid into two congruent triangles. The two parallel sides of an isosceles trapezoid are also referred to as bases, and the height of the trapezoid is the perpendicular distance between the two bases.

Because an isosceles trapezoid has two congruent triangles, the angles opposite these sides are also congruent. Therefore, an isosceles trapezoid has two pairs of congruent angles, with each pair containing one acute angle and one obtuse angle. The acute angles are located adjacent to the parallel sides, while the obtuse angles are located adjacent to the non-parallel sides.

Isosceles trapezoids have several interesting properties, including that the diagonals of an isosceles trapezoid are congruent, and that the diagonals bisect each other. Additionally, the length of each diagonal can be found using the Pythagorean theorem, and the area of an isosceles trapezoid can be determined using the formula:

Area = ((a + b) / 2) * h

Where "a" and "b" are the lengths of the two parallel sides (bases) and "h" is the height of the trapezoid.

PART B:

An isosceles trapezoid is a quadrilateral with two parallel sides (the bases) and two non-parallel sides of equal length. A parallelogram is also a quadrilateral with two pairs of parallel sides.

An isosceles trapezoid can be thought of as a special case of a parallelogram where one pair of opposite sides is shorter than the other pair. In fact, if you extend the non-parallel sides of an isosceles trapezoid until they intersect, you will get a parallelogram with the same base and height as the original trapezoid.

Conversely, if you take a parallelogram and draw a line segment parallel to one pair of opposite sides, you will get an isosceles trapezoid. This means that every isosceles trapezoid can be thought of as a parallelogram with a missing piece, and every parallelogram can be thought of as an isosceles trapezoid with extra pieces added on.

So, in summary, isosceles trapezoids and parallelograms are related in that isosceles trapezoids can be thought of as special cases of parallelograms, and parallelograms can be thought of as isosceles trapezoids with extra pieces added on.

PART C:

No, we cannot use the term "isosceles" to describe a rectangle because a rectangle, by definition, has four right angles and opposite sides that are parallel and congruent to each other. An isosceles trapezoid, on the other hand, has only one pair of parallel sides and two non-parallel sides that are congruent to each other.

The term "isosceles" is typically used to describe triangles or trapezoids where two sides are congruent to each other. In an isosceles triangle, two sides are equal in length, while in an isosceles trapezoid, two non-parallel sides are equal in length. However, in a rectangle, all four sides are equal in length, not just two.

Therefore, while we can describe a rectangle as having all sides congruent to each other, we cannot describe it as an isosceles rectangle because "isosceles" implies only two sides are congruent, which is not the case for a rectangle.

Learn more about Isosceles triangles/shapes:

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Answer:

-1/3

Step-by-step explanation:

m= y2-y1/x21-x1

m= 2-1/-2-1

m= 1/-3

m= -1/3

Answer:

C=48ft

I did 8*9 to get the full area, then subtracted it from the empty space area to get 48.

Answer:

48 ft^2

Step-by-step explanation:

split the figure and form two rectangles

for first rectangle

length = 8

breadth = 3

area of rectangle = l*b

=8*3

=24 ft^2

for second rectangle

length = 6 ft

breadth = 4 ft

area of rectangle = l*b

=6*4

=24 ft^2

area of the given figure = area of first rectangle + area of second rectangle

=24 ft^2 + 24 ft^2

=48 ft^2

split the figure as shown below .

check the image.

Answer:

the sum of 2 consecutive even integers is 66.

Step-by-step explanation:

This means that if one integers is x, the other must be either x-2 or x+2. Therefore, we can write 6=x+(×-2)=2×2. Solving for x, we can find ×=34. this means that the other integer is 34-2=32. indeed, 32+34=66, and done hope this helped C:

The surface area of the cube is 102 m².

It is a polygon having six faces.

The volume of a cube is side cube.

We have,

If each face of the cube has an area of 17 m², then the length of each side of the cube can be found by taking the square root of 17 m²:

s = √17 m = 4.12 m

To find the surface area of the cube, we need to find the area of all six faces and add them together.

The area of each face is s²,

So the total surface area of the cube is:

SA = 6s²

Substituting s = √17 m, we get:

SA = 6 (√17 m)²

SA = 6 (17 m)

SA = 102 m²

Therefore,

The surface area of the cube is 102 m².

Learn more about cubes here:

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Answer:

Check Description for answer

Step-by-step explanation

do it urself

Answer:

A) solution 2 is more acidic than solution 1

Step-by-step explanation:

A chemist prepares two acid solutions:

Solution 1: 3 parts sulfuric acid to 7 parts water

Ratio of sulphur to water: 3/7 (3:7)

Solution 2: 4 parts sulfuric acid to 9 parts water

Ratio of sulphur to water: 4/9 (4:9)

___________________________________________________

Part A: (using ratios to determine which solution is more acidic)

First we make same denominator, since the denominators are 9 and 7, we have to find the lcm (lowest common multiple) they both have with is 63. To do that, we must multiply the denominators with either 7 or 9.

Solution 1: Numerator (3) multiplied by 9 and then denominator (7) multiplied by 9. This makes out fraction/ratio 27/63

Solution 2: Numerator (4) multiplied by 7 and then denominator (9) multiplied by 7. This makes out fraction/ratio 28/63

Since 28/63 (or just 28) is a larger quantity than 27/63 (or just 27) this means solution 2 is more acidic than solution 1.

Mathematical Line (Not sure what you would call this lol): 28 > 27

Part B: (Let 'y' amount of sulfuric acid mix with 'x' amount of water)

Equation of solution 1: y = 3/7x

Equation of solution 2: y = 4/9x

Please find attachment for graph.

Part C: Don't have a graph, sorry! (part a. method is more preferred to find more acidic because it gives the actual acidic amount.)

This is a system of three equations with two unknowns, x and y. To solve it, we can use the method of elimination. First, we can eliminate y by subtracting the first equation from the second equation:

x^2-2y=3 - (x-2y=3) => x^2-x=0

Then we can factor the resulting equation and find the values of x:

x^2-x=0 => x(x-1)=0 => x=0 or x=1

Next, we can substitute these values of x into any of the original equations and find the corresponding values of y. For example, using the first equation:

x-2y=3 => 0-2y=3 => y=-3/2 when x=0 x-2y=3 => 1-2y=3 => y=-1 when x=1

Finally, we can substitute these values of x and y into the expression x2y-2xy2 and evaluate it:

x2y-2xy2 => 02(-3/2)-2(0)(-3/2)2 => 0 when x=0 and y=-3/2 x2y-2xy2 => 12(-1)-2(1)(-1)2 => -3 when x=1 and y=-1

Therefore, the value of x2y-2xy2 can be either 0 or -3 depending on the values of x and y.

Answer:

Absolute value is the distance the number away is from 0. In simpler terms, if you had a -8 the absolute value is 8. I attached a picture of the absolute value symbols. The absolute value of a normal positive 8 is still 8 though because it's the same distance on a number line.