Pls help due in hour :(​

The system of equations that represents Elliott's situation is:

[tex]\begin{cases} 2h = 2h \\ s = 2h \\h + s = 202020 \end{cases}[/tex]

The system of equations for Elliott's situation can be represented as follows:

Let h be the number of hats Elliott makes and s be the number of scarves she makes.

We know that 2 kilograms of yarn are needed for each hat and 1 kilograms of yarn are needed for each scarf.

Therefore, the equation to represent the total amount of yarn used for hats is:

h * 2 = 2h

And the equation to represent the total amount of yarn used for scarves is:

s * 1 = s

Now, we know that Elliott wants to use twice as much yarn for scarves as for hats. This can be represented as:

s = 2h

Finally, we know that Elliott wants to make a total of 202020 items. This can be represented as:

h + s = 202020

Combining all of the equations, we get:

[tex]\begin{cases} 2h = 2h \\ s = 2h \\h + s = 202020 \end{cases}[/tex]

Therefore, the system of equations that represents Elliott's situation is:

[tex]\begin{cases} 2h = 2h \\ s = 2h \\h + s = 202020 \end{cases}[/tex]

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Answer:

Step-by-step explanation:

The sum of the angles in a triangle is 180

So, (19x-1)+(13x-5)+90(right angle) =180

32x+84=180

32x=96

x=3

19x3-1=56

13x3-5=34

answer : 56, 34

Answer:

4/5 = .8.  20% evaporated

Step-by-step explanation:

2.5 million divded into fifth. you have 5/5

take away half a million and that is 1/5th

at the end you have 4/5th left

4/5 = .8 = 80% left over meaning 20% evaporated

Answer:

0.81

Step-by-step explanation:

The required possible amount that she spends additionally is more than $8.

Inequality can be defined as the relation of the equation containing the symbol of ( ≤, ≥, <, >) instead of the equal sign in an equation.

Here,

Elsa will spend more than $25 on gifts. So far, she has spent $17.

Let the possible additional amounts she will spend be x,
According to the quesiton,
x + 17 > 25
x > 25 - 17
x > 8

Thus, the required possible amount that she spends additionally is more than $8, as of the given condition.

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Answer:

y=-x+7

Step-by-step explanation:

Line l intersects y=x^2-2x+5 at the two abscissas, -1 and 2.  Lets find these points [(-1,y1) and (2,y2)] by solving the given equation for y:

f(x) = x^2-2x+5

f(-1) = (-1)^2-2*(-1)+5  for x = -1

f(-1) = 8  This is point (-1,8)

f(2) = (2)^2-2*(2)+5

f(2) = 5  This is point (2,5)

Assuming line l is a straigh line, we can now calculate the slope between points (-1,8) and (2,5).

Rise = (5 - 8) = -3

Run = (2 - (-1)) = 3

Slope = (-3/3) or -1

The slope-intercept form of a straight line is y=mx+b, where m is the slope and b the y-intercept (the value of y when x is zero).

With slope of -1, we can writre y = -x + b

To find b, enter one of the two points and solve for b:

y = -x + b

5 = -(2) + b for (2,5)

b = 7

The equation of line l is y=-x+7

See the attached graph.

Figure A appears to be a polygon under certain conditions.

We are given the following information in the question:

Figure A is a square

Figure B is a parallelogram

Figure C is a right triangle.

Figure D is a trapezoid

We have to find which are the regular polygons.

A regular polygon is a polygon with all the sides equal and all the interior angles equal measure.

That is a regular polygon is equiangular and equilateral.

Figure A  square appears to be a polygon because

The opposite sides are parallel. All four sides are equal, and all angles measure 90°.

Figure B can be a regular pentagon provided it is equiangular and equilateral

A regular polygon is a polygon with all the sides equal and all the interior angles equal measure.

Figure C cannot be a regular polygon because a right angle follows the Pythagoras theorem and all three sides can never be equal in a right-angled triangle.

Figure D is a trapezoid Trapezoids are four-sided polygons, so they are all quadrilaterals.

Figure A appears to be a polygon under certain conditions.

Thus square looks to be a regular.

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We must first calculate the area of a single tile in order to figure how many floor tiles are required to cover a space that is 1080 square meters.

Since the area of a parallelogram is equal to its base times its height, the tile's area is 24 x 10 cm, or 240 [tex]cm^{2}[/tex].

Since one square meter equals 10,000 square centimeters, we divide by 10,000 to convert this area to square meters: 240 [tex]cm^{2}[/tex] / 10,000 = 0.024 c[tex]m^{2}[/tex]

Thus, a single tile has a surface area of 0.024 square meters.

We divide a room's 1080 square meters by a tile's area to determine how many tiles are required to completely cover the space:

1080 [tex]m^{2}[/tex] / 0.024 [tex]m^{2}[/tex]= 45,000

 Therefore ,45,000 floor tiles would be required to cover a space that is 1080 square meters in size.

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There is no solution when the lines that make up a system are parallel since the two lines do not share any points.

A linear equation with two variables has the for [tex]ax + by + c = 0[/tex], where variables are belongs to R. An A system of linear equations that cannot be solved is a pair of inconsistent linear equations. We can determine whether a system of linear equations has no solution by comparing the coefficients of the equations in the system.

Take into account the pair of linear equations in x and y:

[tex]a1x + b1y + c1 = 0\\a2x + b2y + c2 = 0[/tex]

There won't be a solution if [tex]\frac{a_1}{a_2}= \frac{b_1}{b_2}=\frac{c_1}{c_2}[/tex].

An inconsistent pair of linear equations is the name given to this kind of equational system. The system of equations cannot be solved if the graph's lines are parallel.

So here, both equations are called no solution line.

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The number of hours Alan could trim to earn at least $73 is 11.

It shows a relationship between two numbers or two expressions.

There are commonly used four inequalities:

Less than = <

Greater than = >

Less than and equal = ≤

Greater than and equal = ≥

We have,

Charges per hour = $7

Equipment fees = $4

The number of hours to earn at least $73.

7t - 4 ≤ 73

Where t is the number of hours.

Now,

7t - 4 ≤ 73

7t ≤ 73 + 4

7t ≤ 77

t ≤ 11

Thus,

The number of hours is 11.

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Answer:

w = 3

v = 8

Step-by-step explanation:

v + w = 11 can be written

v = 11-w  substitute this for v

2v - w = 16

2(11 -w) - w = 16   Distribute the 2

22 - 2w = 16  Subtract 22 from both sides

22 - 22 -2w = 16 - 22

-2w = -6  Divide both sides by -2

[tex]\frac{-2w}{-2}[/tex] = [tex]\frac{-6}{-2}[/tex]

w = 3

v = 11 - w

v = 11 -3

v =8

Check:

v + w = 11

8 + 3 = 11

11 = 11   Checks

2v - w = 16

2(8) - 3 = 16

19 - 3 = 16

16 = 16  checks

No, the flag pole does not form a 90° angle with the ground.

We can use the Pythagorean theorem to find the length of the flag pole, which states that in a right triangle, the sum of the squares of the two shorter sides equals the square of the longest side (the hypotenuse).

Let x be the length of the flag pole. Then, we have:

x² = (20 - x)² + 28.9²

Expanding and solving for x, we get x = 30.8.

Therefore, the length of the flag pole is 30.8 feet, which is greater than the height of 21 feet. This means that the angle between the flag pole and the ground is not 90°, but rather less than 90°.

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Using a Venn diagram we find that there are 400 people who have a TV and a pet but not a car.

A Venn diagram is an illustration that uses circles to show the relationships among things or finite groups of things.

Given, Total of 6500 people, in which,

5100 had car

5420 had a television set

4800 had a TV and a car

1500 had a TV and a pet

1250 had a car and a Pet

1100 had a TV, a car and a pet

Therefore, no of people having a TV and a pet but not car

= n(TV & Pet)-n(TV, car & pet)

= 1500 - 1100

= 400

Hence, there are 400 people who have a TV and a pet but not a car.

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The lines given, based on the picture, can be said to be skew.

Skewed lines are two lines that are not parallel to one another, neither do they intersect. Only dimensions greater than two-dimensional space can have skew lines. They must be non-coplanar, which means that they must exist in various planes. Two lines in a two-dimensional space can either intersect or run parallel to one another. Skew lines can never exist in 2D space as a result.

Skew lines occur frequently in real-world circumstances. Let's say there is a line on the ceiling and a line on the wall. These lines can be skew lines because they lie in distinct planes if they are not parallel to one another and do not meet. These lines go on forever in both directions.

The picture shows lines on steps. These steps therefore exist on different planes but are not parallel. They must therefore be skew.

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Answer:

Step-by-step explanation:

let 'x' represent the amount removed, then we require:

40-0.25 <= 48-x <= 40+0.25

which solves to:

7.75 <= x <= 8.25

the carpenter must saw off between 7.75 and 8.25 inches

Mrs. Martha's cousin will pay $108 in interest for a loan of $1800.

What is interest in a simple definition?

Since Mrs. Martha is paying an interest rate of 6% per year, her cousin will also pay 6% per year.

To calculate the amount of interest paid, we can use the formula:

Interest = Principal * Rate * Time

Where:

So:

Interest = $1800 * 0.06 * 1 = $108

Therefore, Mrs. Martha's cousin will pay $108 in interest for a loan of $1800.

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The required interval of the given normal distribution using the empirical rule is [100, 140].

The empirical rule formula (also known as a 68 95 99 rule formula) uses data from a normal distribution to determine the first, second, and third standard deviations, which, respectively, differ from the mean value by 68%, 95%, and 99%. Additionally, it shows that 99.9% of the data fall inside the third standard deviation range (either above or below the mean value). The empirical rule formula is described below with cases that have been resolved.

In the question, we are given that IQ scores for adults aged 20 to 34 years are normally distributed according to N(120, 20), and are asked for the range in which the middle 68% of people in this group score on the test.

N(120, 20) signifies a normal distribution with mean, μ = 120, and the standard deviation, σ = 20.

By the empirical formula, 68% of the data lies within one standard deviation from the mean.

Thus, the required interval is [μ - σ, μ + σ] = [120 - 20, 120 + 20] = [100, 140].

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The total that Ashpreet bought, given the price of the plates and the forks, is $ 16. 95

The amount that the clerk should give back, given the amount Ashpreet gave the clerk, is $ 33. 05

The total amount that Ashpreet will pay for the two packages of plates and the packages of forks, given the price of the plates and the price of the forks is:

= ( Cost of plates x Number of packages of plates ) + ( Cost of forks x Number of plate packages )

= ( 5. 79 x 2 ) + ( 1. 79 x 3 )

= 11. 58 + $ 5. 37

= $ 16. 95

The amount that the clerk would therefore give back to Ashpreet is:

= Amount Ashpreet paid with - Cost

= 50 - 16. 95

= $ 33. 05

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The rest of the question is:

The price of the packages of napkins and forks is: napkins $ 5.79 and forks $1.79

Answer:4

Step-by-step explanation:

because it is a right triangle so if cb is 2 that makes ac 2 then if you just look at the ab line it’s actually longer so it’s 4 ;)

If you know the distance from the edge of the base to the center of the top, together with either its radius or its height, we can compute the volume of a right cylinder.

In a right-angled triangle, the square of the hypotenuse side is equal to the sum of the squares of the other two sides, according to Pythagoras's Theorem. The theorem can be used to determine how steep mountains or slopes are. To calculate the distance between an observer and a location on the ground when the observer is looking down from a tower or structure. It is mostly utilized in the construction industry.

Note that h refers to half of the total height of the cylinder. I chose to use

h instead of h/2 to simplify things later on.

To find the volume of our cylinder, we need to multiply the area of the top by the total height of the cylinder. In other words;

V = pi * (radius of cylinder)² (height of cylinder)

V = pi(r² - h²) 2h

V = 2pi h(r² - h²)

This is our volume function. Next, we take the derivative of the volume function and set it equal to zero. If we move the h inside the parenthesis, we only need to use the power rule to get the derivative.

d/dxV(h) = 2pi(r² -3 h²) = 0

The 2π divides out and we are left with;

r² − 3h²=0

After some rearranging;

h² = r²/3

Take the square root of both sides.

h = r/√3

That is how we can calculate  the volume of a right cylinder, if you know the distance from the edge of the base to the center of the top along with either its radius or its height.

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The largest number that divides two or more numbers evenly is greatest common divisor (GCD).

The biggest positive number that divides any non-zero integer by two or more is known as the greatest common divisor.

The greatest common divisor is the biggest number that divides two or more numbers proportionally (GCD).

Using the LCM method, the steps to calculate the GCD of (a, b) are as follows:

Find the result of a and b in step 1.

Find a and b's least common multiple (LCM) in step two.

Step 3: Dividing the results of Steps 1 and 2.

Step 4: The value that results from division is the most significant common divisor of (a, b).

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Answer:

the largest angle is 70

Step-by-step explanation:

180 degrees in a triangle

180=5x+6x+7x

simplify

180=18x

x=10

7x=70

the largest angle is 70 degrees.

Solve for x values that satisfy a quadratic inequality to write interval notation. This usually involves factoring the quadratic and putting it equal to zero, then utilizing the inequality sign to select viable solutions. After finding the answers, write (a,b) to indicate the interval of x-values that make the inequality true. The interval notation for -3 and 5 is (-3,5).

In general, you must first solve for the values of x that are consistent with the inequality being met before you can build an interval notation for a quadratic inequality. The quadratic equation will often need to be factored in order to be fixed to zero.

The relevant answers will then be determined using the inequality sign. After you have identified the solutions, you may use the notation (a,b), where a and b stand for the solutions, respectively, to show the range of x-values that cause the inequality to hold.

The interval notation, for instance, might appear as follows if the responses were -3 and 5. (-3,5).

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There are a total of 20 cars average in the parking lot, all of which are either red or white and either 2-door or 4-door. 12 of the cars are red, 15 of them are 4-door, and 4 of them are 2-door and white. Out of the 12 red cars, 12 of them are 4-door, so the answer is 12 cars are 4-door and red.

1. Determine the total number of cars in the parking lot: 20

2. Subtract the number of 2-door cars from the total number of cars to get the number of 4-door cars:

20 - 4 = 15

3. Subtract the number of 2-door and white cars from the number of red cars to get the number of 4-door and red cars:

12 - 4 = 8

4. Add the number of 4-door and red cars to the number of 4-door cars to get the answer:

8 + 15 = 12

To find the answer, we first determined the total number of cars in the parking lot, which was 20. We then subtracted the number of 2-door cars from the total number to get the number of 4-door cars, which was 15. We then subtracted the number of 2-door and white cars from the number of red cars to get the number of 4-door and red cars, which was 8. Finally, we added the number of 4-door and red cars to the number of 4-door cars to get the answer, which was 12.

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Step-by-step explanation:

To find the coefficient of x² in the expansion of (1+ax)⁴(a-2)³, we can use the binomial theorem. The binomial theorem states that for any two numbers a and b and any non-negative integer n, the expansion of (a+b)^n is given by the sum of the terms:

(a+b)^n = C(n,0)a^n * b^0 + C(n,1)a^(n-1) * b^1 + C(n,2)a^(n-2) * b^2 + ... + C(n,n)a^0 * b^n

where C(n,k) = n! / (k!(n-k)!) is the binomial coefficient.

We can apply the binomial theorem to find the coefficient of x² in the expansion of (1+ax)⁴(a-2)³:

(1+ax)⁴(a-2)³ = (1+4ax+6(ax)²+4(ax)³+(ax)⁴)(a-2)³ = a^3 - 6a^2 + 12a - 8 + 6(ax)² + ...

So the coefficient of x² in the expansion is 6.

The term “slope of a function” is short for “slope of the graph of a function” for some particular value of the independent variable.

The linear function's slope. A slope is a measure of how steep a hill is. The same is true of a line's steepness. The ratio of the rise, which is the vertical change between two points, to the run, which is the horizontal change between those same two points, is known as the slope.

The derivative of a function is if it has one, the slope at any point. The slope of the line that is tangent to the curve there is another definition for it. In calculus class, you learn how to discover derivatives starting with limit theorems and moving on to numerous other "shortcut" theorems that make finding many derivatives easier.

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The length of the quilt is 12 feet.

We can start solving this problem by using algebra. Let x be the quilt's length in feet. Then, the width of the quilt can be represented as (x - 4) feet. The area of the quilt is the product of its length and width, which is x(x - 4) = 96.

Expanding the left side of the equation:

x^2 - 4x = 96

Now we have a quadratic equation that we can solve by factoring or using the quadratic formula.

x^2 - 4x - 96 = 0

(x-12)(x+8) = 0

x=12 or x=-8 (length cannot be negative)

So the length of the quilt is 12 feet.

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Answer:

Ace

Step-by-step explanation:

The range has only one value 100

The required sum of the coordinate of T is given as 9.

Coordinate, is represented as the values on the x-axis and y-axis of the graph. while the coordinate x is called abscissa and the coordinate the y is called ordinate.

Here,
The coordinates of the endpoints of RS are R(4, -8) and S(25, -1).
Ratio ST / RT = 4 / 3 = n/m

Coordinates of the point are given by section formula,
x = mx₁ + nx₂ / m  + n ; y =  my₁ + ny₂ / m  + n

Substitute the values,
x = 3 × 4  + 25 × 4 / 4 + 3 ; y = 3 × -8  + 25 × -1 / 4 + 3
x = 16                               ; -7

Coordinates of T = (x ,y) = (16, -7)

Sum of the coordinate of T = 16 + {-7} = 9

Thus, the required sum of the coordinate of T is given as 9.

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Answer:

the teacher does not have enough paint and he needs 1351.5-1324.8 = 26.7 square cm more paint.

Step-by-step explanation:

The canvas each student has is 5.3 cm wide and 8.5 cm tall. The area of the canvas is (5.3 cm)(8.5 cm) = 45.05 square cm.

The art teacher has 6 bottles of paint, each bottle covers 220.8 square cm of canvas. So he has 6220.8 = 1324.8 square cm of paint.

There are 30 students in the class and each student has a canvas of 45.05 square cm. So in total the students have 30*45.05 = 1351.5 square cm of canvas.

The teacher has 1324.8 square cm of paint and the students have 1351.5 square cm of canvas.

Therefore the teacher does not have enough paint and he needs 1351.5-1324.8 = 26.7 square cm more paint.