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3 years ago

Solve for X 3(-2x-1)=2(x+5)

2 answers:

5 0

U need to use the distributive property ok? The u have to add or subtract the number on both sides bring it down and the you have to divide

fenix001 [56]3 years ago

4 0

Answer:

3(-2x-1) = 2(x+5)

-6x-3 = 2x+ 10

-13 = 8x | :8

-13/8 = x

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Prove that lines 3x-4y=12 and 3y=12-4x are perpendicular.

Svetllana [295]

Answer:

see explanation

Step-by-step explanation:

If 2 lines are perpendicular then the product of their slopes equals - 1

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Consider the given equations

3x - 4y = 12 ( subtract 3x from both sides )

- 4y = - 3x + 12 ( divide terms by - 4 )

y = $\frac{3}{4}$ x - 3 ← in slope- intercept form

with slope m = $\frac{3}{4}$

3y = 12 - 4x = - 4x + 12 ( divide terms by 3 )

y = - $\frac{4}{3}$ x + 4 ← in slope- intercept form

with slope m = - $\frac{4}{3}$

Then

$\frac{3}{4}$ × - $\frac{4}{3}$ = - 1

Since the product of their slopes = - 1 then the lines are perpendicular

3 0

2 years ago

Dan made 8 out of 10 free throws. What is the experimental probability that he will not make his next free throw? What is the th

nlexa [21]

Answer:

8/10--> 2/10 20 % scnahce of not makin git

Step-by-step explanation:

7 0

2 years ago

Tony collected 16.2 pounds of pecans from the trees on his farm.He will give the same weight of pecans to each of 12 friends.How

Arlecino [84]

Each friend will get 1.35 pounds of pecans.

To find this, simply divide 16.2 by 12 to find the weight of pecans everyone gets. Thus making 1.35 pounds of pecans the answer.

I hope this helps!

8 0

3 years ago

F(x)=2(x+1)^2-2 What is the vertex

Bumek [7]

Answer:

(-1,-2)

Step-by-step explanation:

Let's bring back to memory vertex formula for parabolas.

$y=a(x-h)^{2}+k$

Where (h,k) is the vertex.

In $f(x)=2(x+1)^{2}-2$

The vertex is (-1,-2)

8 0

3 years ago

Select all the expressions that hace a value of 28:

laila [671]

Answer:

616/22 = 28

784/28 = 28

Step-by-step explanation:

5 0

2 years ago