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nlexa [21]
2 years ago
10

A triangle has an area of 70 square kilometers and a height of 10 kilometers.what is the length of the base?

Mathematics
1 answer:
lord [1]2 years ago
5 0

Answer:

14km

Step-by-step explanation:

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3x+5y=-3 x-5y=-5 show your work
frez [133]
We are given the equations 3x+5y=-3 and x-5y=-5.

Both equations have a 5y  term which allows us to easily solve the system by elimination. To do so we will add the equations together like a simple addition problem by adding the x terms together, the y terms together, and the integer answers together.

3x + 5y = -3
+x - 5y = -5
---------------
4x + 0y = -8

The y terms cancel out since one is positive and one is negative. Now we can solve for x.

4x = -8

\frac{4x}{(4)} = \frac{-8}{(4)}

x = -2

Now plug -2 in for x in one of the original equations to find y.

(-2) - 5y = -5

-5y = -3

y = 3/5

Our answer as an ordered pair is (2, 3/5)
6 0
3 years ago
9 is the geometric mean between 4 and which other number?
KonstantinChe [14]
Answer is A. 20.25

cause 20.25 x 9 = 81
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5 0
3 years ago
Please help me with this
Ipatiy [6.2K]

Answer:

(-4,1) because if the x value repeats the relation is no longer a function

7 0
3 years ago
Read 2 more answers
How do I simplify this radical?
Yuliya22 [10]
Separate the root expression into the two numbers you found as factors, with each number now under its own square root symbol. For example, sqrt(12) = sqrt(4) times sqrt(3). 3) Keep simplifying. The square root of a perfect square becomes just a number, without theradical<span> square root symbol.</span>
7 0
3 years ago
Let X denote the lifetime of a machine component with an exponential distribution. The mean time for the component failure is 25
hammer [34]

Answer:

15.8 % ???

at z = 1 p=.8413

I guess the question is asking 1-.8413 = 15.8 %

Step-by-step explanation:

7 0
3 years ago
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