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nlexa [21]
3 years ago
7

X+y=5.5 2x+y=7 (process of elimination )plz help :)

Mathematics
2 answers:
sergeinik [125]3 years ago
4 0

Answer:

x=1.5 and y=4

Masja [62]3 years ago
4 0

This is the answer, with all the steps needed

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Product A is an 8oz bottle of cough medication that sells for $1.36. Product B is a 16-oz. bottle of cough medication that costs
kolezko [41]

Answer:

8 oz bottle

Step-by-step explanation:

1.36/8 = .17

3.20/16 = .20

7 0
3 years ago
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The inverse of the function f(x) = x + 10 is shown.
Vadim26 [7]

we have

f(x) = \frac{1}{2}x + 10

Step 1

Let

y=f(x)

y =  \frac{1}{2}x + 10

Exchange the variable x for y and variable y for x

x =  \frac{1}{2}y + 10

Clear variable y

Multiply by 2 both sides

2x =  y + 20

y = 2x-20

Let

f(x)^{-1} =y

f(x)^{-1}=2x-20

therefore

the answer is

the inverse of the function is f(x)^{-1}=2x-20

the missing value is 20



5 0
3 years ago
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Can someone please help me work out the missing angles please I’m struggling
Vladimir [108]

Step-by-step explanation:

a =45°

b=45°

c=30°

d=30°

e=30°

f=30°

total of the angle

90×4=360

6 0
3 years ago
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Write an equation in standard form of an ellipse that has a vertex at (0, 6), a co-vertex at (1, 0), and a center at the origin.
Alekssandra [29.7K]

Answer:

The standard form of the equation of the ellipse is x² + y²/36 = 1

Step-by-step explanation:

* Lets revise the standard equation of the ellipse

- The standard form of the equation of an ellipse with  

 center (0 , 0) is  x²/b² + y²/a² = 1

where,

* the length of the major axis is 2a

* the coordinates of the vertices are (0 , ±a)

* the length of the minor axis is 2b

* the coordinates of the co-vertices are (±b , 0)

*  the coordinates of the foci are (0 , ± c),  where c² = a² - b²

* Now lets solve the problem

∵ The vertex of the ellipse is (0 , 6)

∴ a = 6

∵ The co-vertex is (1 , 0)

∴ b = 1

∵ the center is the origin (0 , 0)

∵ The standard form equation is x²/b² + y²/a² = 1

∴ x²/(1)² + y²/(6)² = 1 ⇒ simplify

∴ x² + y²/36 = 1

* The standard form of the equation of the ellipse is x² + y²/36 = 1

4 0
2 years ago
42x ​5 ​​ y ​4 ​​ =(−7x ​3 ​​ y)(B)
gulaghasi [49]
This is my very own step-step solution:

Step 1:
<span>Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : </span>

               <span> 42*x^5*y^4-((-7*x^3*y)*(b))=0 
</span>Step 2:<span>Equation at the end of step  1  :</span><span>
 
               ((42•(x5))•(y4))-((0-(7x3•y))•b) = 0
</span>
Step 3:Pulling out like terms :  

  <span> 42x5y4 + 7x3yb</span>  =  <span> 7x3y • (6x2y3 + b)</span> 

The correct is: 7x3y • (6x2y3 + b) = 0 <span> </span>

Quick Side Note:
<span>Binomial can not be factored as the difference of two perfect cubes
</span>
I hope this helps a little!

Hope you have a great day!
4 0
3 years ago
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