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lions [1.4K]
3 years ago
11

Select ALL statements that are true about the linear equation.

Mathematics
1 answer:
Yuri [45]3 years ago
4 0

The answers are 2 and 4

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Find the surface area of the prism.<br> 2.2 <br> 2 ft<br> 3 ft<br> 1 ft
sveta [45]

Answer:

3ft tall thats the aswers

Step-by-step explanation:

8 0
2 years ago
How do you write 9.59 x 102 in a standard form?
Nataly [62]

Answer:

978.18

Step-by-step explanation:

6 0
3 years ago
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There are 33 of them altogether and pay £311 in total. How many kids are in the family? Adults pay £15 and kids pay £7
Marrrta [24]

Answer:

Step-by-step explanation

  1. Let x be the number of adults and y the number of kids

We can then write this two equations :

          x+y= 33

          15x+7y= 311

  • let's solve the two eaquations

to do that we should combine them both in a way that help us get rid of one of the variables.

             Let's multiply the first equation by -7 to get rid of y by adding it to thr second equation

             -7x-7y= -231

        now add both equations .

              15x+7y-7x-7y=311-231

    we get :  8x = 80

as you notice y is gone and we get a classic easy equation to solve

                x= 80/8

                   = 10

so the number of adults is 10

let's go back to the first equation ( x+y= 33) and replace x with 10

                10+y= 33

                  y= 33-10

                     =23

let's check using the second equation :

            (10*15)+(23*7) = 311

that is true

so :

  •  the number of adults is 10
  • the number of kids is 23
4 0
3 years ago
What is the rate of change of the function?
Dominik [7]
I think it would be -3
5 0
3 years ago
the axis of symmetry for a function in the form f(x)=x^2+4x-5 is x=-2. what are the coordinates of the vertex of the graph?
Alenkasestr [34]
Hello : 
<span>f(x)=x²+4x-5
</span><span>The axis of symmetry for a function in the form f(x)=x^2+4x-5 is x=-2 :
</span>f(x) = (x+2)² + b 
f(x) x²+4x+4+b=  x² +4x-5 
 4+b= -5 
b = -9
the vertex is : (2 , -9)
4 0
3 years ago
Read 2 more answers
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