1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Marianna [84]
3 years ago
8

Given: PSTK - trapezoid m∠P = 90°, SK=13 PK = 12, ST = 8 Find: Area of PSTK

Mathematics
1 answer:
bazaltina [42]3 years ago
5 0

Answer:

Area of PSTK = 50

Step-by-step explanation:

△SPK:

SK = 13, PK = 12

13^2 - 12^2 = SP^2

SP = 5

(8 + 12) /2 x 5 = 50  


You might be interested in
Which of the following are incorrect expressions for slope?
vfiekz [6]

Answer:

Option B and C are correct.

\frac{x_2-x_1}{y_2-y_1}

\frac{run}{rise} are the expression incorrect for slope

Step-by-step explanation:

Slope is defined as the change in the dependent variable  relative to the change in the dependent variable

or the ratio of the horizontal changes to vertical changes between any two points on the graph of the line.

The vertical changes between any two points is rise

The horizontal changes between any two points is run.

Formula for slope is given by:

For any two points (x_1, y_1) and (x_2, y_2)

then slope is:

\text{Slope} =\frac{rise}{run}= \frac{y_2-y_1}{x_2-x_1}

or we can write this as:

Δy = y_2-y_1

Δx = x_2-x_1

⇒\text{Slope} = \frac{\triangle y}{\triangle x}

Therefore, the expression which are incorrect for slope  are;

\frac{x_2-x_1}{y_2-y_1}

\frac{run}{rise}

8 0
3 years ago
Read 2 more answers
If Archie has 100 balls, and 18 of those balls are tennis balls, what percent of the total balls are tennis balls?
marishachu [46]

Answer:

D 18%

Step-by-step explanation:

18/100 = 18%so D is the answer

5 0
2 years ago
While traveling to Europe, Phelan exchanged 250 US dollars for euros. He spent 150 euros on his trip. After
uysha [10]

Answer:

$140.41

Step-by-step explanation:

250 * 1.3687 = 3412.175 Euros.

- 150 Euros = 192.175

192.175  1.3687 = $140.41

3 0
3 years ago
When 3a? – 7a+ 6 is subtracted from 4a? - 3a +4,<br> the result is
Evgen [1.6K]

Step-by-step explanation:

(3a-7a+6)-(4a-3a+4)

(-4a+6)-(1a+4)

Add the remaining a's together, as well as the 6 and 4.

you get,

-3a+10

8 0
3 years ago
Hana rents a car for a day. Her car rental company charges $50 per day and $0.40 per mile. Peter rents a car from a different co
erastova [34]

50 + .4x = 70 + .3x

.4x = .3x + 20

.1x = 20

x = 200

Let x be the number of miles.

They have to drive 200 miles.

4 0
3 years ago
Other questions:
  • How many solutions does the following equation have? |4x+12|=0
    15·2 answers
  • Fred and Victoria provide the following proofs for vertical angles to be equal:
    11·2 answers
  • I NEED HELP NOW What is the equation in slope-intercept form of the linear function represented by the table? x y –6 –18 –1 –8 4
    11·2 answers
  • What is the volume of the figure ? <br> A.25.1cm <br> B.50.3cm<br> C.100.5cm<br> D.201.1cm
    12·2 answers
  • Please do this ASAP! Due tomorrow. 9:12pm here.
    7·1 answer
  • in a game involving a pair of fair dice a player rolls the dice until he gets a sum of 7 let z equal the number of rolls it take
    9·1 answer
  • Question 1<br> Simplify this expression.<br> 100<br> 10
    5·2 answers
  • What is the distance between (-6,4) and (-8,6)? Choose 1 answer:
    11·1 answer
  • Find d using a trigonometric ratio
    15·1 answer
  • What does (0.6) squired 2 equal
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!