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erica [24]
3 years ago
11

Help! Quick please!

Mathematics
2 answers:
Vesnalui [34]3 years ago
8 0
B..............
c>=3 and n<0 and p<=(9-3 c)/n
S_A_V [24]3 years ago
8 0

Answer:

n ≥ − the quantity 3 times c minus 9 all over p

Step-by-step explanation:

To solve inequalities you should use the same method as to solve equalities.

1. First write down the inequality:

-np-6\leq 3(c-5)

2. Solve the parentheses:

-np-6\leq 3c-15

3. Pass the independent numbers to the right side of the inequality with opposite sign and do the mathematical operations:

-np\leq 3c-15+6\\\\-np\leq 3c-9

4. Pass the p with the minus sign to the right side of the inequality, as p has the minus sign, the direction of the inequality changes:

n\geq -(\frac{3c-9}{p})

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(1,5) (2,6) (3,7) (4,8)

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3 years ago
4x-5=19 please help thank you
frosja888 [35]

Answer:

x=6

Step-by-step explanation:

4x - 5 = 19

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4 0
2 years ago
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Detmermine the best method to solve the following equation, then solve the equation. (3x-5)^2=-125
liq [111]

For the given equation;

(3x-5)^2=-125

We shall begin by expanding the parenthesis on the left side, after which we would combine all terms on and move all of them to the left side, which shall yield a quadratic equation. Then we shall solve.

Let us begin by expanding the parenthesis;

\begin{gathered} (3x-5)^2\Rightarrow(3x-5)(3x-5) \\ (3x-5)(3x-5)=9x^2-15x-15x+25 \\ (3x-5)^2=9x^2-30x+25 \end{gathered}

Now that we have expanded the left side of the equation, we would have;

\begin{gathered} 9x^2-30x+25=-125 \\ \text{Add 125 to both sides and we'll have;} \\ 9x^2-30x+25+125=-125+125 \\ 9x^2-30x+150=0 \end{gathered}

We shall now solve the resulting quadratic equation using the quadratic formula as follows;

\begin{gathered} x=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a} \\ \text{Where;} \\ a=9,b=-30,c=150 \\ x=\frac{-(-30)\pm\sqrt[]{(-30)^2-4(9)(150)}}{2(9)} \\ x=\frac{30\pm\sqrt[]{900-5400}}{18} \\ x=\frac{30\pm\sqrt[]{-4500}}{18} \\ x=\frac{30\pm\sqrt[]{-900\times5}}{18} \\ x=\frac{30\pm\sqrt[]{-900}\times\sqrt[]{5}}{18} \\ x=\frac{30\pm30i\sqrt[]{5}}{18} \\ \text{Therefore;} \\ x=\frac{30+30i\sqrt[]{5}}{18},x=\frac{30-30i\sqrt[]{5}}{18} \\ \text{Divide all through by 6, and we'll have;} \\ x=\frac{5+5i\sqrt[]{5}}{3},x=\frac{5-5i\sqrt[]{5}}{3} \end{gathered}

ANSWER:

x=\frac{5+5i\sqrt[]{5}}{3},x=\frac{5-5i\sqrt[]{5}}{3}

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uysha [10]

Answer:

The answer is C.

Step-by-step explanation:

The first line's slope is 2x and it y-intercept is 4. The second line's slope is simple 1x or just x (they are both the same).

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Step-by-step explanation:

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3 years ago
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