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garik1379 [7]
3 years ago
11

Name the property of equality that justifies the following statement: If l = m, then m = l. Symmetric Property Multiplication Pr

operty Subtraction Property Reflexive Property
Mathematics
2 answers:
nydimaria [60]3 years ago
5 0
Symmetric property is the answer ;)
mixas84 [53]3 years ago
4 0

Answer: Symmetric Property

Step-by-step explanation:

The symmetric property of equality is given by :

\text{if a=b then b=a}

The given statement :  If l = m, then m = l.

We can see that the symmetric property of equality justifies the above statement.

The other properties fro any numbers a,b and c  are :

Multiplication property : if a=b , then ac=bc

Subtraction property : if a=b, then a-c=b-c

Reflexive property : a=a

You might be interested in
The population at Bishop High School is 2000 students in 2011. Every year the population decreases by 50 students
Artemon [7]

Answer:

  • Let p be the population at t be the number of years since 2011.  Then, p=2000-50t
  • The projected population of the high school in 2015=1800
  • In <u>2019</u> the population be 1600 students

Step-by-step explanation:

Given: The population at Bishop High School students in 2011 =2000

Also,  Every year the population decreases by 50 students which implies the rate of decrease in population is constant.

So, the function is a linear function.

Let p be the population at t be the number of years since 2011.

Then, p=2000-50t

So at t=0, p=2000

In year 2015, t=4, substitute t=4 in the above equation ,we get

p=2000-50(4)\\\Rightarrow\ p=2000-200\\\Rightarrow\ p=1800

Hence, the projected population of the high school in 2015=1800

Now, put p=1600 in the function , we get

1600=2000-50t\\\Rightarrow50t=2000-1600\\\Rightarrow50t=400\\\Rightarrow\ t=\frac{400}{50}\\\Rightarrow\ t=8

Now, 2011+8=2019

Hence, in <u>2019</u> the population be 1600 students




6 0
3 years ago
The vector ~v represents the displacement vector from Portland, Oregon to Houston, Texas. The vector w~ represents the displacem
Art [367]

Answer:

a

the displacement of the plane is  - \= w

b

The displacement of plane  from Portland to Akron with layover at Houston is  

       \= v  + \= w

c

  the vector which defines this displacement is  \= v + \= w  =- 2500 \ km

Step-by-step explanation:

From the question we are the

   The displacement from Portland, Oregon to Houston, Texas. is  \= v

    The displacement  from Houston, Texas to Akron, Ohio.  is \= wa

a

   The motion of the plane in question a is in the opposite direction to vector \= w

So the displacement of the plane is  - \= w

b

The motion of Portland to Houston to Akron is in the direction of both vector \= v and  \= w  so

The displacement of plane  from Portland to Akron with layover at Houston is  

       d =  \= v  + \= w

c

From the question we are told that the plane flies over Portland to get to  Anchorage, Alaska which implies that it is moving in opposite direction to the vector \= v

   Give that distance from Portland to Houston is  \= v  = 3000 km

           and the distance from Portland to  Anchorage is \= w = - 5500km

Then the vector which defines this displacement is mathematically represented as

   \= v + \= w  = 3000  -5500

    \= v + \= w  =- 2500 \ km

       

4 0
3 years ago
The difference between a number and 8
stich3 [128]

Answer:

n-8

Step-by-step explanation:

The difference between a number and 8

Difference is subtraction

Let the number be n

n-8

3 0
3 years ago
Write the domain and range of the given figure.
Whitepunk [10]
Domain x < or equal to 5
Range y < or equal to -1
Brainliest?
7 0
2 years ago
What is the degree measure of an arc 4 ft. long in a circle of radius 10 ft.?
Dafna1 [17]
Arc length, (s)=(radius, r)(central angle, q)
s=rq
q=s/r
q=4/10
q=2/5, or 0.4 radians
8 0
3 years ago
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