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Rudik [331]
3 years ago
5

What is the solution to this system of equations? * 11) x - 3y=9 x+3y=-3

Mathematics
2 answers:
Alika [10]3 years ago
8 0
In point form (3,-2)
Equation form
Zinaida [17]3 years ago
5 0

Answer: x=3 and y=-2

Step-by-step explanation:

x-3y=9

x+3y=-3

Add the functions together

2x=6

x=3

Plug X into the first equation

3-3y=9

-3y=6

y=-2

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What is the equation in point-slope form of a line that passes through the points (5, −3)(5, −3) and (−2, 9)(−2, 9) ?
Alina [70]
Point sloe is
y-y1=m(x-x1)
slope=m
a ponint is (x1,y1)

slope=(y2-y1)/(x2-x1)
(x,y)
(5,-3)
(-2,9)
slope=(9-(-3))/(-2-5)=12/-7=-12/7
m=-12/7

a point is (5,-3)
x1=5
y=-3
y-(-3)=-12/7(x-5)
y+3=-12/7(x-5)

2nd one
5 0
2 years ago
after hiking for two hours A hiker is an elevation of 3500 feet. hiker continues to climb at a rate of 1100 feet each hour write
wel
I think the equation is 1100+x=3500
7 0
2 years ago
how many unique triangles can be made where one angle measures 98 degrees and another angle is an obtuse angle
aliya0001 [1]
None because it is impossible for any triangle to have more than one obtuse angle.
7 0
2 years ago
Read 2 more answers
Increase 120 centimetres by 24%
Eva8 [605]
It is a simple problem where 120 centimeters need to be increased by 24%. The increased length can be found by:
120 * (24/100)
= 12 * (24/10)
= 288/10
= 28.8 centimeters
Then the total length of increase = 28.8 cm
Then the increased length = (120 + 28.8) cm
                                         = 148.8 cm
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3 0
3 years ago
If a standard 6 sided dice is rolled. (Write your answers as a decimal, rounded to the nearest hundredth.) Find: a. Probability
pshichka [43]

Answer:

see below

Step-by-step explanation:

The possible outcomes are 1,2,3,4,5,6

P( a prime number and a multiple of two)

The only prime number that is a multiple of 2 is 2

P( a prime number and a multiple of two) = number of outcomes / total outcomes

P( a prime number and a multiple of two) = 1/6 = .17

P(3 or a prime number)

The prime numbers are 2,3,5  and 3 is included in this list so we have 3 outcomes

P( 3 or a prime number) = number of outcomes / total outcomes

P( 3 or a prime number) =3/6 =1/2= .5

P(3 U Multiple of 2)

Multiples of 2 are 2,4,6 and add 3 to the list  so there are 4 outcomes

P( 3 U Multiple of 2) = number of outcomes / total outcomes

P( 3 or a prime number) =4/6 =2/3= .67

P(2 U Even number)

even numbers are 2,4,6 and 2 is on the list  so there are 3 outcomes

P( 2 U Even number) = number of outcomes / total outcomes

P( 3 or a prime number) =3/6 =1/2= .5

4 0
3 years ago
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