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VLD [36.1K]
2 years ago
15

A 30-60-90 triangle has a hypotenuse that has a length of 18. Find it’s area

Mathematics
1 answer:
erica [24]2 years ago
5 0

Answer:

4824

Step-by-step explanation:

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What is the solution to the system of equations?
Over [174]

ANSWER

C) (6,-8)

EXPLANATION

The equations are:

y =  \frac{1}{3}x - 10

and

2x+y=4

We substitute the first equation into the second equation to get:

2x +  \frac{1}{3}x - 10 = 4

We multiply through by 3 to get:

6x + x  - 30= 12

Group similar terms,

6x + x = 30 + 12

7x = 42

Divide both sides by 7 to get,

x =  \frac{42}{7}  = 6

Put this value of x into the first equation to get;

y =  \frac{1}{3} (6) - 10

y = 2 - 10 =  - 8

3 0
2 years ago
Simplify (-5) + (-4) +(7)
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Answer:

Lol, isn't that just -2?

Step-by-step explanation:

I think you can just add those up.

7 0
3 years ago
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Candice needs a plumber and must decide between 2 companies. For a service visit, Company A charges $60 to send a plumber plus $
Ber [7]
Since they meet at the $105 mark the answer would be $105
7 0
3 years ago
How do I factor 14x^2-7xy-147y^2
Viefleur [7K]

STEP 1

Equation at the end of step

((14 • (x2)) -  7xy) -  (3•72y2)  

Equation at the end of step 2

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STEP 3

STEP 4

Pulling out like terms

4.1     Pull out like factors :

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Trying to factor a multi variable polynomial :

4.2    Factoring    2x2 - xy - 21y2

Try to factor this multi-variable trinomial using trial and error

Found a factorization  :  (2x - 7y)•(x + 3y)

6 0
2 years ago
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3.5 divided by 4.
Each sister will receive 0.875 feet of ribbon.
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