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Ainat [17]
2 years ago
9

Is (2, 1) a solution to this system of equations? 4x + 12y = 20 x + y = 3 yes no

Mathematics
2 answers:
dedylja [7]2 years ago
8 0

Answer:

yes

I hope to help you

my dear

Amanda [17]2 years ago
6 0

Answer:

no

Step-by-step explanation:

4(2)+12(1)=20

8 + 12 =20

20 = 20

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Is(2, 5)asolutiontotheinequality 2x + 3y ≥ 20 ?
Daniel [21]

Answer:

no

Step-by-step explanation:

2x + 3y ≥ 20

Substitute the point (2,5) in for x and y and see the inequality is true

2(2) +3(5) ≥ 20

4 + 15 ≥ 20

19 ≥ 20  

This is not true, so (2,5) is not a solution

5 0
3 years ago
Read 2 more answers
To solve an equation, you use____operations.
Tema [17]

Hey there!☺

Answer:\boxed{\text{inverse}}

Explanation:

When you are solving an equation, it is important to use <em>inverse</em> operations. You will need to use the <em>inverse</em> operations on both sides of the equation. And it is also important to isolate the variable. After you do that, you will need to reverse it up. The way to do all of this is using the <em>inverse</em>.

To solve an equation, you use <u>inverse</u> operations.

Hope this helps!

5 0
2 years ago
Math problem. I need help plz.
mash [69]

Answer:

Never because one of them goes 1k8 and one of them goes 24 so if they that song every time then it would be the same time diffrence even if you try a million tinmes

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Find the radius. Round to the nearest tenth.
Arlecino [84]

Answer:

Step-by-step explanation:

V = 1/3 * pi * r^2 * h

r = ?

pi = 3.14

h = 17 cm

3*V = pi * r^2 h = r^2    Divide by pi

3*V/pi = r^2 h  = r^2     Divide by h

3*V/(pi*h)         =r^2      Take the square root of the left to get just  r

sqrt(3*V/(pi*h))  = r         Now solve the equation.

sqrt(3*538.25 /(3.14*17)) = r

sqrt(1614 / 53.38) =

r = sqrt(30.24)

r = 5.493

6 0
2 years ago
Which of the following statements would be correct to use when proving that limx→4(3x−4)=8?
Fudgin [204]

Answer:

Option c

Step-by-step explanation:

given that limit x tending to 4 of the function (3x-4) is 8

This implies for all values of x such that for epsilon >0 arbitrary small ,

||x-4||, we get

|f(x)-8|<3epsilon

this is equivalent to the option c.

Proof:

Consider

||x-4||

Hence it follows that option C is right.

3 0
3 years ago
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