What is the formula for area?

A. area = width + length
B. area = length x width
C. area = width ÷ length
D. area = length x height

I need help, i will give points.

Answer:

[tex] f'(x) = {e}^{x}( \sin x + \cos x ) [/tex]

Step-by-step explanation:

[tex]f(x) = {e}^{x} \sin x \\ \\ f'(x) = \sin x \frac{d}{dx} {e}^{x} + {e}^{x} \frac{d}{dx} \sin x \\ \\ f'(x) = \sin x \: {e}^{x} +{e}^{x} \cos x \\ \\ f'(x) = {e}^{x}( \sin x + \cos x ) [/tex]

Solution:

Given:

Substitute the value of "x - y" into equation 1.

Divide -5 both sides.

Substitute the value of x into equation 2.

Putting the solutions in (x,y) form.

Answer:

  (x, y) = (-1/15, -2/5)

Step-by-step explanation:

You want to solve the system of equations by substitution:

We can use the second equation to substitute for (x-y) in the first equation:

  1/3 = -5x

  -1/15 = x . . . . . . . . divide by -5

Substituting this value into the second equation, we have ...

  -1/15 -y = 1/3

  -1/15 -1/3 = y = -6/15 = -2/5

The solution is (x, y) = (-1/15, -2/5).

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Answer:

8

Step-by-step explanation:

There are several groups so there can't be just one. And the lowest number needed for a group is 4. So the minimum amount of people to participate would have to be 8.

Answer:

4th is correct

Step-by-step explanation:

As the object moves in forword direction

so F2 must have great magnitude.

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The length of the arc WX is the number of units on the arc

The length of the arc WX is [tex]\frac{8}{9} \pi[/tex]

The given parameters are:

Central angle, m<WVX = 20 degrees

Radius, VW = 8

The length (L) of the arc is calculated as:

[tex]L = \frac{\theta}{360} * 2\pi r[/tex]

Substitute known values

[tex]L = \frac{20}{360} * 2\pi *8[/tex]

Evaluate the product

[tex]L = \frac{320}{360} \pi[/tex]

Simplify the fraction

[tex]L =\frac{8}{9} \pi[/tex]

Hence, the length of the arc is [tex]\frac{8}{9} \pi[/tex]

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(a) ∠ORP and ∠ORN are a linear pair .

Let us prove that option a , is the correct option by finding the value of x .

Angle ORP and angle ORN are a linear , which means their sum will be equal to 180° .

So :-

[tex]80 + 3x + 10 = 180[/tex]

[tex]3x + 80 + 10 = 180[/tex]

[tex]3x + 90 = 180[/tex]

[tex]3x = 180 - 90[/tex]

[tex]3x = 90[/tex]

[tex]x = \frac{90}{3} [/tex]

[tex]x = 30°[/tex]

As we were able to find put the value of x only after we cam to know that ∠ORP and ∠ORN are a linear pair , we say that option a is the correct statement .

Therefore , the correct answer is :-

(a) ∠ORP and ∠ORN are a linear pair .

The value of x is equal to 30°. Hence, proved.

Angles on a straight line relate to the sum of angles that can be arranged together so that they form a straight line. Angles on a straight line add to 180°.

Given that, m∠ORP=80° and m∠ORN=(3x+10)°.

Here, m∠ORP+m∠ORN=180° (Angles on straight line adds upto 180°)

80°+(3x+10)°=180°

90°+3x=180°

3x=90°

x=90°/3

x=30°

Hence, proved.

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Answer:  5

Step-by-step explanation:

The x-coordinate of the midpoint of the segment is the average of the x-coordinates of the two endpoints.

Therefore, the x-coordinate of the midpoint of AB is the average of the x-coordinate of A and the x-coordinate of B.

We are given that the x-coordinate of A is 62 and of B is -42.

The average of 62 and -42 = (62-42)/2 = 10/2 = 5

Answer: ss*$7.50 + aa*$11 ≥ $990.

Step-by-step explanation:

We have two variables:

aa = # of adult tickets sold.

ss = # of student tickets sold.

The total profit is:

P = ss*$7.50 + aa*$11

And we want P ≥ $990.

Then we can write the inequality:

ss*$7.50 + aa*$11 ≥ $990.

Now, we have only one equation and two variables, so there are a lot of possible solutions for this system.

Answer:

de fk?

Step-by-step explanation:

wth is that

Answer:

16.67

Step-by-step explanation:

5/30 = 1/6

1/6 x 100 = 100/6

100/6 simplified is 16.67

Answer:

Use PEMDAS

Step-by-step explanation:

P-parenthesis ( )

E-Exponent

M-Multiplication *

D-Division /

A- Addition+

S-Subtraction -

so, first you would do 30 * 100= 3000

Then, you would do 5/3000=???

The fee for  30 ride tickets is 24.

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.

Fee for ride tickets at a carnival is shown in the table at the right.

5 tickets=5 fee

10 tickets=9.50 fee

15 tickets=13.50 fee

20 tickets=16 fee

We need to find the fee for 30 tickets.

Let x be the fee for 30 tickets

20/16=30/x

Apply cross multiplication

20x=480

Divide both sides by 20

x=24

Hence, the fee for  30 ride tickets is 24.

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The required solution to the given inequality is x > 16, as shown in the graph.

In mathematics, an inequality is a statement that two values or expressions are not equal. An inequality uses one of the comparison symbols: "<" (less than), ">" (greater than), "≤" (less than or equal to), "≥" (greater than or equal to), or "≠" (not equal to). For example, "x + 3 < 10" is an inequality that states that the value of x plus 3 is less than 10.

Here,
As mentioned in the question,
To graph, the solution of the inequality (x+8) > 2 (2.0 + 10).

Simplifying the given inequality:
(x+8) > 2 (2.0 + 10)

x+ 8 > 2(12)
x > 24 - 8
x > 16

Thus, the required solution to the given inequality is x > 16.

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Area:-

Answer:

[tex]A=\boxed{10.5}\; \;\rm sq. \; un.[/tex]

Step-by-step explanation:

Area of a Trapezoid

[tex]\boxed{A=\dfrac{1}{2}(a+b)h}[/tex]

where:

From inspection of the given diagram:

Substitute the found values into the formula and solve for A:

[tex]\implies A=\dfrac{1}{2}(2+5)(3)[/tex]

[tex]\implies A=\dfrac{1}{2}(7)(3)[/tex]

[tex]\implies A=\dfrac{7}{2}(3)[/tex]

[tex]\implies A=\dfrac{21}{2}[/tex]

[tex]\implies A=10.5\; \;\rm sq. \; un.[/tex]

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answer: 2, 3, 5, 7

Answer:

0.01x+45>0.05x+10

Answer:

..

Step-by-step explanation:

Answer:

3;8

Step-by-step explanation:

Answer:

y = 6x - 2

Step-by-step explanation:

y = mx + b

y = 6x + (-2)

Answer:

C. Natural Numbers

Step-by-step explanation:

Before we determine what groups [tex]\sqrt{100}[/tex] fits into, we must simplify it.  We get the number 10, which is much easier to categorize.  Out of the four options, the natural numbers are the smallest group, containing only the numbers we use to count (i.e. 1, 2, 3, 4 ...).  We know that 10 fits into this category because 10 is a non-zero whole number.  Since the natural numbers contain 10 and are the smallest subset, the answer is C.

As a note: 10 will also fit into the whole numbers and rational numbers since all natural numbers are parts of these two groups as well.  These groups contain more numbers, however, making them larger than the natural number set so we can eliminate them.  10 is also not an irrational number since we can accurately define it with a fraction.

Step-by-step explanation:

Let g represent the number of gloves purchased and h represent the number of hats purchased.

The gloves cost $12 and a hat costs $8

We need to write an inequality that represents this situation.

Cost of gloves = $12g

Cost of hats = $8h

No more than $56 means [tex]\le 56[/tex].

We can write the inequality as follows :

[tex]12g+8h\le 56[/tex]

Hence, this is the required solution.

Answer:

c

Step-by-step explanation:

Answer:

1/4

Step-by-step explanation:

When converting radical expressions to rational exponents the exponent on the radicand (1) becomes the numerator of the rational exponent, and the index/root of the radical (4) becomes the denominator of the rational exponent. (1/4)

Answer:

I believe you just subtract 845.67ml - 243.36 which is equal to 602.31

Step-by-step explanation:

well, the difference is £20 - £3 simply £17.

now, if we take £20 to be the 100%, what is £17 off of it in percentage?

[tex]\begin{array}{ccll} \pounds &\%\\ \cline{1-2} 20 & 100\\ 17& x \end{array} \implies \cfrac{20}{17}=\cfrac{100}{x}\implies 20x=1700 \\\\\\ x=\cfrac{1700}{20}\implies x=85[/tex]

Answer:

80.56%

Step-by-step explanation:

So to solve we have the new value over the original value. the new value being the day the 29 workers showed up, and the original value is the full labor force there, so 36.

we get the equation 29/36 which gives us 80.56%

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Given:

Matthew's dad hired him to paint 6 wooden patio chairs for $125.

Time taken by him to paint all of the chairs = 9 hours.

It takes the same amount of time to paint each chair.

To find:

The fraction of an hour does it take Matthew to paint one chair

Solution:

Total time = 9 hours

Total number of chairs = 6

Now, time taken by Matthew to paint one chair is

[tex]\dfrac{\text{Total time}}{\text{Total number of chairs}}=\dfrac{9}{6}[/tex]

[tex]\dfrac{\text{Total time}}{\text{Total number of chairs}}=\dfrac{3}{2}[/tex]

Therefore, Mattew takes [tex]\dfrac{3}{2}[/tex] of an hour to paint one chair.

Thinking with a model: On dividing the total time by total number of chairs we get time taken by Mattew (in hours) to paint one chair. So, the result represents the fraction of an hour taken by Matthew to paint one chair.

Answer:

4,500

Step-by-step explanation:

Answer: (x,y)→(−x,−y)

Step-by-step explanation: The rule for a rotation by 180° about the origin is (x,y)→(−x,−y)