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
jasenka [17]
3 years ago
15

The length of the base of a triangle is twice its height. if the area of the triangle is 169 square​ kilometers, find the height

Mathematics
1 answer:
Alik [6]3 years ago
4 0

Answer:

  13 km

Step-by-step explanation:

The area formula for a triangle is ...

  A = (1/2)bh

We are told that b=2h, so this becomes ...

  A = (1/2)(2h)(h) = h²

Substituting the given area, we can find h:

  169 km² = h²

  (√169) km = h = 13 km

The height is 13 km.

You might be interested in
What equation is ALWAYS TRUE?<br> HELPPPPPP
nadezda [96]

Answer:

2(x-1)=2x-2

Step-by-step explanation:

distribute the 2 into (x-1) so you get 2x-2 which is equal to 2x-2

3 0
3 years ago
Ramkin is going to flip a fair coin 100 times.
Gelneren [198K]

Answer:

50 times

Step-by-step explanation:

You are going to flip a coin 100 times. There are 2 sides. So, what you would do is divide 100 by two because there are two sides. There is a 50% chance that the coin will land on heads, and a 50% chance it will land on tails.

Please let me know if you have any more questions. Hope this helps!

3 0
2 years ago
Solve for C.<br> Thank you to whoever answers!!!!!!!!!!!!!!!!!!!
faltersainse [42]

Answer:

c=7

Step-by-step explanation:

How to solve your problem

8=−3+29

8=−3c+298=-3c+298=−3c+29

Solve

1

Subtract

29

292929

from both sides of the equation

8=−3+29

8=−3c+298=-3c+298=−3c+29

8−29=−3+29−29

8−29=−3c+29−298{\color{#c92786}{-29}}=-3c+29{\color{#c92786}{-29}}8−29=−3c+29−29

2

Simplify

3

Divide both sides of the equation by the same term

4

Simplify

Solution

=7

Hope this helps!

Have a great day!

-Lea

5 0
3 years ago
Read 2 more answers
A line that includes the points (n,-6) and (-9,-4) has a slope of -15. What is the value of n?
pav-90 [236]

Answer:

n=-8.86

Step-by-step explanation:

Slope will determine the direction and the steepness of a function. It could be either increasing/decreasing depend on minus or plus. The formula for slope is

m= (y2-y1)/ (x2-x1)

If you add (n,-6) and (-9,-4)  to the equation, it will be:

m= (y2-y1)/ (x2-x1)

-15= (-6--4)/ (n--9)

-15= (-2)/ (n+9)

-15(n+9) = -2

-15n - 135=-2

-15n= -2 + 135

n= -133/15

n= -8 13/15= -8.86

7 0
3 years ago
7c + 7a - 7r + 8m + 2y=31<br><br>solve for c a r m and y​
Blizzard [7]

For this case we have the following equation:

7c + 7a-7r + 8m + 2y = 31

We solve for c:

We pass the terms that do not contain "c" to the other side of the equation by changing signs:

7c = 31-7a + 7r-8m-2y

We divide by 7 on both sides of the equation:

c = \frac {31-7a + 7r-8m-2y} {7}

We solve for "a":

We pass the terms that do not contain "a" to the other side of the equation by changing signs:

7a = 31-7c + 7r-8m-2y

We divide by 7 on both sides of the equation:

a = \frac {31-7c + 7r-8m-2y} {7}

We solve for r:

We pass the terms that do not contain "r" to the other side of the equation by changing signs:

-7r = 31-7c-7a-8m-2y

We multiply by -1 on both sides:

7r = 7c + 7a + 8m + 2y-31

We divide by 7 on both sides of the equation:

r = \frac {7c + 7a + 8m + 2y-31} {7}

We solve for m:

We pass the terms that do not contain "m" to the other side of the equation by changing signs:

7c + 7a-7r + 8m + 2y = 31\\8m = 31-7c-7a + 7r-2y

We divide by 7 on both sides of the equation:

m = \frac {31-7c-7a + 7r-2y} {8}

We solve for y:

We pass the terms that do not contain "y" to the other side of the equation by changing signs:

2y=31-7c-7a+7r-8m

We divide by 2 on both sides of the equation:

y=\frac{31-7c-7a+7r-8m}{2}

Answer:

c = \frac {31-7a + 7r-8m-2y} {7}

a = \frac {31-7c + 7r-8m-2y} {7}

r = \frac {7c + 7a + 8m + 2y-31} {7}

m = \frac {31-7c-7a + 7r-2y} {8}

y=\frac{31-7c-7a+7r-8m}{2}

4 0
3 years ago
Other questions:
  • What is the area of this tile 4in 1in
    13·1 answer
  • A mule dear can 1/4 of a mile in 25 seconds. At this rate, what expression can be used to determine how fast a mule deer runs in
    6·1 answer
  • A sea bird is 28 meters above the surface of the ocean.What is its elevation?
    8·1 answer
  • Peter is saving for a down payment of $50,000 for a new home. Yesterday, he created an equation that models his current savings
    13·1 answer
  • Solve the proportion and round the answer to the nearest hundredth
    14·2 answers
  • Which is the simplified form of this expression?
    10·1 answer
  • Pleaseee help will give most branliest answer if correct
    9·1 answer
  • . Shawn gets an allowance of $18 each week and his sister Natasha gets an allowance of $9 each week. Shawn saves 1/2 of his allo
    10·1 answer
  • There are 4 black, 4 red, and 4 white marbles in a box. How many marbles do you have to take out (without looking) to be sure yo
    6·1 answer
  • I skipt thought the lesson pls help
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!