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ki77a [65]
3 years ago
14

What is the area of the following triangle?

Mathematics
1 answer:
djyliett [7]3 years ago
3 0

Answer:

63

Step-by-step explanation:

multiply 7 by 18 7 × 18=126 then divide by 2 126÷2=63

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Mr. Morales purchased 218 acres of land for his farm. If the total price of the land was $163,282, how much did each acre cost?
nlexa [21]

Answer:

$749 each

Step-by-step explanation:

6 0
3 years ago
Lucy is a dress maker. She sews 4/7 of a dress in 3/4 hour. Lucy sews at a constant rate. At this rate, how many dresses does Lu
MAVERICK [17]

Answer:

16/21 dresses

Step-by-step explanation:

3/4 · k hours: 4/7 · k dresses for any constant k

If we want 1 hour, then k will need to be 4/3

4/3 × 4/3 hours: 4/7 × 4/3

1 hour = 16/21 dresses

7 0
3 years ago
Mariana tried to drink a slushy as fast as she could.She drank the slushy at a rate of 4.5 miliiliter per second.After 17 second
umka21 [38]
Since she drank 4.5 mm of slushy per second, she continued to drink for 17 seconds so 4.5•17=76.5 Now that you have how much she drank, add that to how much is remaining (148.5) and the original amount that she drank; the answer is 225 milliliter of slushy
4 0
4 years ago
A jar contains 30 red marbles, 50 blue marbles, and 20 white marbles. If you select one marble from the jar at random, what is t
rjkz [21]
50% chance, since their are 50 other marbles in the jar.
8 0
3 years ago
An airplane leaves an airport and flies due west 150 miles and then 170 miles in the direction S 49.17°W. How far is the plane f
Basile [38]
Notice the picture below

what we have, is really an angle, encroached by two sides

thus, use the Law of Cosines

\bf \textit{Law of Cosines}\\ \quad \\
c^2 = {{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)\implies 
c = \sqrt{{{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)}\\\\
-----------------------------\\\\
\textit{so the distance "c" from the airplane to the airport}\\
\textit{using angle C, and the sides "a" and "b"}
\\\\\\
c=\sqrt{150^2+170^2-(2\cdot 150\cdot 170)cos(49.17^o)}\qquad
\begin{cases}
a=150\\
b=170\\
C=49.17^o
\end{cases}

3 0
3 years ago
Read 2 more answers
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