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3 years ago

10. Write an expression in simplified form to represent the area of the trapezoid.

Mathematics

1 answer:

alexira [117]3 years ago

6 0

Answer:

48 $x^{7}$ y

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

A = $\frac{1}{2}$ h (b₁ + b₂ )

where h is the height and b₁, b₂ the parallel bases , then

A = $\frac{1}{2}$ × 4 $x^{5}$ × (9x²y + 15x²y )

= 2 $x^{5}$ × 24x²y

= 48 $x^{7}$ y

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A human resources manager selected a random sample of 200 workers who donate to charity. The following table shows the distribut

Komok [63]

Answer: B the expected # of management workers donating to charity is 100

Step-by-step explanation:

50% = management so, .50(200)=100

8 0

3 years ago

Solve: (2x - 3)^2 = -4

Wewaii [24]

Answer:

No real solutions;

$x=i+1.5$

Step-by-step explanation:

The easiest method to solve an algebraic equation is to use inverse operations. This applies to the given equation;

$(2x-3)^2=-4\\$

- Take the square root of both sides

$\sqrt{}$

==================================================================

As one can see, the right side is a negative number. However, one cannot take the square root of a negative number and get a real result. Therefore, one must use imaginary numbers. Remember, the imaginary unit ( $i$ ) represents ( $\sqrt{-1}$ ).

==================================================================

$2x-3=2i$

- Add (3) to undo the (-3)

$+3$

$2x=2i+3$

- Divide by (2) to remove the coefficient of (2x)

÷ $2$ ÷

$x=\frac{2i+3}{2}$

Simplify,

$x=i+1.5$

6 0

3 years ago

Does anyone know if 4 can go into 72

Nuetrik [128]

4 can go into 72 18 times

8 0

3 years ago

Read 2 more answers

Hugh brought some magazines that cost $3.95 each and some some books that cost $8.95 each. He spent a total of $47.65 let m repr

gavmur [86]

Answer:

3.95m + 8.95b = 47.65

Step-by-step explanation:

From this problem, you get quite a handful of information.

The variable "m" represents the # of magazines Hugh bought.

The variable "b" represents the # of books Hugh bought.

One magazine [m] cost $3.95

One book [b] cost $8.95

The total cost of books and magazines is $47.65

Based on the information, you can create an equation with two variables, representing the total cost and how many of each magazine and book Hugh bought.

If one magazine cost $3.95, the amount of money he spent on magazines can be represented by 3.95m.

If one book cost $8.95, the amount of money he spent of magazines can be represented by 8.95b.

And lastly, if the total cost of magazines and books Hugh bought is $47.65, the following equation can be made:

3.95m + 8.95b = 47.65

So, "3.95m + 8.95b = 47.65" is the correct equation. I hope this helps! :)

7 0

3 years ago

I need help with this please!! Thanks in advance!!

Tcecarenko [31]

Dis is what I think of this problem I can't answer this sorry :-(

4 0

3 years ago