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3 years ago

50 POINTS! Arrange the steps to solve this problem. 9 steps. 50 POINTS!

Mathematics

2 answers:

Ivahew [28]3 years ago

6 0

$\left\{\begin{array}{ccc}x+y=-2\\2x-3y=-9\end{array}\right\\\\\text{multiply the first equation by 3}\\3(x+y)=3(-2)\qquad|\text{use distributive property}\\3x+3y=-6\\\\\underline{+\left\{\begin{array}{ccc}3x+3y=-6\\2x-3y=-9\end{array}\right}\qquad\text{add 3x+3y=-6 to 2x-3y=-9, and solve for x}\\.\qquad5x=-15\qquad|:5\\.\qquad x=-3\\\\\text{Substitute the value of x in the first equation (x+y=-2)}\\\\-3+y=-2\qquad|+3\\y=1\\\\\text{The solution for the system of equations is (-3, 1)}$

Anon25 [30]3 years ago

5 0

Answer:

4 1 3 2

Step-by-step explanation:

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Please help thanks so much

Katarina [22]

Answer:

y = $\frac{-3}{2}$ x -- 2

Step-by-step explanation

We need to fill out the formula y = mx + b.

First, we must find out what each part of that formula means.

mx = slope

b = y-intercept

y = solution (Always unknown)

We already know the slope of the formula, so we can fill that out.

y = $\frac{-3}{2}$ x + b

If it has a slope of -3/2, then that means it is moving down 3 points and moving to the right 2 points to find the next line. because rise over run.

If it passes through the point (-4, 4) then from their subtract 3 to 4, and 2 to -4.

This means the next point it will reach is (-2, 1). Once again, subtract 3 from 1, and add 2 to -2.

The next point it will reach is (0, -2) This gives us the y-intercept of the equation.

Now we can fill out the rest of the formula!

y = $\frac{-3}{2}$ x -- 2

4 0

3 years ago

An object travels around a circle of radius r with constant speed. If s is the distance traveled in time t around the circle and

Alex

Answer with Step-by-step explanation:

We are given that

Radius of circle=r

Total distance traveled =s

Time=t

Central angle= $\theta$ rad

We know that

Linear speed,v= $\frac{distance}{time}$

Using the formula

Therefore, v= $\frac{s}{t}$

Angular speed, $\omega=\frac{Angular\;displacement}{time}$

By using the formula

$\omega=\frac{\theta}{t}$ rad/s

4 0

3 years ago

Which expressions are equivalent to 3^−9/3^−6?

Semmy [17]

The answer is
1/3^3
And
1/27
And
3^-3

7 0

3 years ago

Read 2 more answers

HELPPGPGPPHPHGPPFPSLLSLSL

ololo11 [35]

If Carla would have bought 4 plants it would have been 13 dollars from green touch

If she would have bought them for the grocery store it would have been 14 dollars

So in conclusion she saved 1 dollar
Option 3

8 0

2 years ago

Jorge bought 16 apples for $8.00.

maks197457 [2]

assuming that 0 apples costs 0 dollars

and 16 apples costs $8

so we have the points

(0,0) and (16,8) in form (x,y)

graph below

5 0

3 years ago