Ask question

Ask question

All categories

4 years ago

11

(50 Points)

2 answers:

Yanka [14]4 years ago

5 0

C
If you plug in the values in that equation, it works.

Assoli18 [71]4 years ago

5 0

To find the other system, since we know already that x = 3 and y = 9, we just have to input the value of x and y in each of the equations and see if they work.

4x + 6y = 64

4 (3) + 6(9) = 64

12 + 54 = 64
66 = 64

That doesn't work, so we move on.

2x + y = 36

2 (3) + 9 = 36

6 + 9 = 36

15 = 36

Once again, we move on.

4x + y = 21

4 (3) + 9 = 21

12 + 9 = 21

21 = 21

Since we're only looking for one answer, we have found it, meaning that the answer to this question is 4x + y = 21.

You might be interested in

What’s the answer to this equation?

Tresset [83]

Answer:

Part A) The graph in the attached figure

Part B) see the explanation

Step-by-step explanation:

Part A) Graph the function

we have the quadratic function

$y=3x^2-12x-36$

This is a vertical parabola open upward

The vertex is a minimum

using a graphing tool

The graph in the attached figure

Part B) What are the values of a, b and c?

we know that

The values of a and b represent the x-intercepts of the quadratic equation

The x-intercepts are

(-2,0) and (6,0)

so

$a=-2\\b=6$

Find the value of c

we know that

The x-coordinate of the vertex in a vertical parabola is equal to the midpoint of the roots

so

The value of c is equal to

$c=\frac{a+b}{2}$

substitute the given values

$c=\frac{-2+6}{2}=2$

see the attached figure

7 0

3 years ago

Complete the equation of this circle:

adell [148]

Answer:

9

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Please answer quick!!

IRINA_888 [86]

Answer:

mBC = 96°

mB = 55°

mC = 77°

mAB = 154°

Step-by-step explanation:

The angle mB inscribes the arc mAC, so we have:

$mB = mAC / 2$

$mB = 110 / 2 = 55\°$

The sum of internal angles of a triangle is 180°, so in the triangle ABC we have:

$mA + mB + mC = 180$

$48 + 55 + mC = 180$

$mC = 180 - 48 - 55$

$mC = 77\°$

Using again the property of inscribed angles, we have:

$mAB = 2*mC = 154\°$

$mBC = 2*mA = 96\°$

7 0

3 years ago

Cold antoje help me answering this please :).<br>Fake answer will be reported.

Harrizon [31]

Answer:

158.1

Step-by-step explanation:

Distance is the square root of (x1-x2)^2+(y1-y2)^2

square root of (-4-146)^2+(2-52)^2

square root of 150^2+50^2

square root of 22500+2500

square root of 25000

50sqrt10

Rounding is 158.1

5 0

3 years ago

If (2-3) + (x + y) = 6, what is x + yl?

Stella [2.4K]

Answer:

7

Step-by-step explanation:

2-3 = -1 and 7 - 1 is 6

x+y=7

6 0

3 years ago