All categories

2 years ago

to solve the system of equations below, Becca isolated x^2 in the firs equation and then substituted it into the second equation

1 answer:

4 0

The resulting equation if Becca isolated x² in the first equation and then substituted it into the second equation is (9-y²) / 25 - y²/36 = 1

<h3>Equation</h3>

x² + y² = 9

x²/25 - y²/36 = 1

From (1)

x² = 9 - y²

substitute x² = 9 - y² into (2)

x²/25 - y²/36 = 1

(9-y²) / 25 - y²/36 = 1

Therefore, the resulting equation is option C; (9-y²) / 25 - y²/36 = 1

Learn more about equation:

brainly.com/question/4172455

#SPJ1

You might be interested in

How many fifieths would three theths equal

kari74 [83]

45 you need to fix the question for example what does theths mean

3 0

3 years ago

Suppose a car's momentum is calculated to be 36000 . The mass of the car is 1,500 kg. What is the magnitude of the velocity of t

Ad libitum [116K]

Answer:

The magnitude of the velocity of the car is 24 m/s .

Step-by-step explanation:

Given : A car's momentum is calculated to be 36000 .

the mass of the car is 1500 kg.

To find: What is the magnitude of the velocity of the car.

Formula used:

Momentum =mass × velocity

Explanation:

We are given that momentum of the car =36000 .

Mass of the car = 1500 kg .

Plugging the given value in the above formula

Momentum =mass × velocity

36000 = 1500 × velocity

On dividing both side by 1500 we get ,

velocity = 24 meter/second

Therefore, The magnitude of the velocity of the car is 24 m/s .

4 0

3 years ago

Solve system of equation by elimination<br> 4x+3y=-1<br> 5x+4y=1

zvonat [6]

Answer:

Steps:

4x+3y=-1

5x+4y=1

First, multiply the top equations by -5, and the bottom by 4 to get :

-20x-15y=5

20x+16y=4

Then, you’re going to add the two equations with them being on top of each other so you can easily see what cancels out :

-20x-15y=5

+ 20x+16y=4

———————

0+1y=9

From this, you get :

y=9

Now that you have one variable, find x by substituting 9 for y in one of the equations, I choose :

4x+3y=-1

So :

4x+3(9)=-1

Then simplify by multiplying 3 and 9 :

4x+27=-1

Then subtract 27 on each side :

4x=-28

Then, divide by 4 to get that :

x= -7

Hope this helps!!

7 0

3 years ago

Read 2 more answers

Engineering The equation for the cross section of a spotlight is y+5= 1/2x^2.

Marysya12 [62]

Answer:

$p=1/2\ or\ 0.5\ inches$

Step-by-step explanation:

From the question we are told that

Equation of cross section is $y+5= \frac{1}{2x^2}$

Generally the equation can be rewritten mathematically as

$y+5= \frac{1}{2}x^2$

$x^2=(y+5)2$

$(x-0)^2=(y-(-5))2$

Generally the equation of a parabola with vertical axis is mathematically given by

$(x - h)2 = 4p(y - k)$

Therefore comparing equations

$(x-0)^2=(y-(-5))2$

$4p=2$

$p=2/4$

The distance from the bulb to the vertex of the cross section is given by

$p=1/2\ or\ 0.5\ inches$

4 0

3 years ago

Find the value of x. <br><br> A- 26<br> B- 46<br> C-15<br> D-80

enyata [817]

Answer:

C. 15

Step-by-step explanation:

A straight line equals 180°.

The angles are:

(6x + 10) +

(6x - 10)

+10 and -10, cancel each other out.

Now we are left with:

(6x) +

(6x)

6 + 6 = 12, so we have 12x

180° ÷ 12 = 15°

5 0

3 years ago