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3 years ago

Which statements are correct for all values of x?

1 answer:

8 0

A), C), D), and E are all true because if you were to solve them, both sides of the = sign would be the same number. For example, if I were to solve the first one (A), I would get 16x=16x

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If -3m + 1 > 7, which of the following is a solution set for m?

Papessa [141]

ANSWER

m < -2

EXPLANATION

We want to find the solution set for m in:

$-3m+1>7$

First, collect like terms:

$\begin{gathered} -3m>7-1 \\ -3m>6 \end{gathered}$

Now, divide both sides by -3. When you divide an inequality by a negative number, <em>the sign changes direction</em>:

$\begin{gathered} \frac{-3m}{-3}>\frac{6}{-3} \\ m$

This means that all values of m must be less than -2.

<em>None of the options contains the correct solution set.</em>

4 0

1 year ago

Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.

alexira [117]

Answer:

Option B

Step-by-step explanation:

Given quadratic equation is,

12a² + 9a + 7 = 0

By comparing this equation with standard quadratic equation,

hx² + kx + c = 0

h = 12, k = 9 and c = 7

By using quadratic formula,

a = $\frac{-k\pm\sqrt{k^2-4hc}}{2h}$

= $\frac{-9\pm\sqrt{9^2-4(12)(7)}}{2(12)}$

= $\frac{-9\pm\sqrt{81-336}}{2(12)}$

= $\frac{-9\pm\sqrt{-255}}{24}$

= $\frac{-9\pm i\sqrt{255}}{24}$

a = $\frac{-9+ i\sqrt{255}}{24},\frac{-9- i\sqrt{255}}{24}$

Therefore, Option B will be the correct option.

3 0

3 years ago

Can I get help......

Ivenika [448]

The answer is C -208 degrees Fahrenheit!

6 0

3 years ago

Andy sold 125 baseball cards on the third day at his sporting goods store. On

castortr0y [4]

Can u give me thanks I need it so I can get 50 points plz

5 0

3 years ago

If I get 5 XP every 5 minutes, how long does it take to get 10,000 XP?

Helga [31]

Answer:

It would take 2,000 minutes

Step-by-step explanation:

2,000 times 5 is 10,000

6 0

3 years ago