All categories

3 years ago

REVIEW: -. Find the zeros of the function: f(x)=-3x – 6

Mathematics

1 answer:

horrorfan [7]3 years ago

6 0

Answer:x=-2

Step-by-step explanation:

You want to set up the equal to zero

Then add six to both sides

Then divide by -3x

You might be interested in

Find the H+ concentration of of a solution that has a pH solution of 12.24

Maurinko [17]

Answer:

$4.83\times 10^{-6}$

Step-by-step explanation:

Given that,

The pH of the solution = 12.24

We need to find the H⁺ concentration of the solution. We know that,

$pH=-log[H^+]$

Put pH = 12.24

So,

$12.24=-log[H^+]\\\\\[H^+]=4.83\times 10^{-6}$

So, the concentration of H+ is $4.83\times 10^{-6}$ .

5 0

3 years ago

An arrow is fired into the air with an initial upward velocity of 64 feet per second from the top of a building 80 feet high.

astra-53 [7]

Answer:

128 = 80 + 64 t - 16 t^2

8 = 5 + 4 t - t^2

3 = t (4 - t)

Inspection shows the equation is solved if

t = 1 and t = 3

Plug into original equation to check

8 0

3 years ago

Determine the measures of the angles of MNO if the measures of the angles are in the ratio 2:4:6

saul85 [17]

2:4:6 =2x :4x :6x
2x -1st angle
4x -2d one
6x - 3d one
2x+4x+6x=180 because MNO is a triangle
12x=180
x=180/12=15

2*15=30° -1st angle
4*15= 60° -2d one
6*15=90° - 3d one

4 0

3 years ago

Maricopa's Success scholarship fund receives a gift of $ 75000. The money is invested in stocks,

Airida [17]

Answer:

Maricopa's Success invests $25,000 in stocks, $40,000 in bonds, and $10,000 in CDs.

Step-by-step explanation:

a = Stocks

b = Bonds

c = CDs

a + b + c = 75000

b = 30000 + c

a = 75000 - c - 30000 - c = 45000 - 2c

0.065(45000 - 2c) + 0.044(30000 + c) + 0.0225c = 3610

2925 - 0.13c + 1320 + 0.044c + 0.0225c = 3610

0.0635c = 635

c = 10000

So b = 40000 and a = 25000

3 0

3 years ago

1. Determine the solutions of the equation:

alex41 [277]

The equation has no solution for x and the formula that correctly solves for the other base, b is b = 2/9A - 35

<h3>How to determine the solutions of the equation?</h3>

The equation is given as:

b = 2A/h

There is no occurrence of x in the above equation

This means that the equation has no solution for x

<h3>Which of the following formulas correctly solves for the other base, b?</h3>

Here, we have:

A = 9/2(b+35)

Multiply both sides by 2

2A = 9(b+35)

Divide both sides by 9

2/9A = b + 35

Subtract 35 from both sides

b = 2/9A - 35

Hence, the formula that correctly solves for the other base, b is b = 2/9A - 35