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4 years ago

Solve for x. 9 ≤ 17 − 4x

2 answers:

6 0

If you would like to solve 9 <= 17 - 4x for x, you can do this using the following steps:

9 <= 17 - 4x
4x <= 17 - 9
4x <= 8 /4
x <= 8/4
x <= 2

The correct result would be x <= 2.

anygoal [31]4 years ago

3 0

$\sf 9 \leq 17-4x\\Add\ 4x\ to\ both\ sides.\\4x+9 \leq 17\\Subtract\ 9\ from\ both\ sides.\\4x \leq 8\\Divide\ by\ 2\ on\ both\ sides.\\x \leq 2\\\\\\{\boxed{x \leq 2}$

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Given the graph of the polynomial function

jarptica [38.1K]

Step-by-step explanation:

according to the graph, the correct answer is:

possitive : (-1, 2) and (6, oo)

negative : (-oo, -1) and (2, 6)

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3 years ago

. Use the quadratic formula to solve each quadratic real equation. Round

Liono4ka [1.6K]

Answer:

A. No real solution

B. 5 and -1.5

C. 5.5

Step-by-step explanation:

The quadratic formula is:

$\begin{array}{*{20}c} {\frac{{ - b \pm \sqrt {b^2 - 4ac} }}{{2a}}} \end{array}$ , with a being the x² term, b being the x term, and c being the constant.

Let's solve for a.

$\begin{array}{*{20}c} {\frac{{ 5 \pm \sqrt {5^2 - 4\cdot1\cdot11} }}{{2\cdot1}}} \end{array}$

$\begin{array}{*{20}c} {\frac{{ 5 \pm \sqrt {25 - 44} }}{{2}}} \end{array}$

$\begin{array}{*{20}c} {\frac{{ 5 \pm \sqrt {-19} }}{{2}}} \end{array}$

We can't take the square root of a negative number, so A has no real solution.

Let's do B now.

$\begin{array}{*{20}c} {\frac{{ 7 \pm \sqrt {7^2 - 4\cdot-2\cdot15} }}{{2\cdot-2}}} \end{array}$

$\begin{array}{*{20}c} {\frac{{ 7 \pm \sqrt {49 + 120} }}{{-4}}} \end{array}$

$\begin{array}{*{20}c} {\frac{{ 7 \pm \sqrt {169} }}{{-4}}} \end{array}$

$\begin{array}{*{20}c} {\frac{{ 7 \pm 13 }}{{-4}}} \end{array}$

$\frac{7+13}{4} = 5\\\frac{7-13}{4}=-1.5$

So B has two solutions of 5 and -1.5.

Now to C!

$\begin{array}{*{20}c} {\frac{{ -(-44) \pm \sqrt {-44^2 - 4\cdot4\cdot121} }}{{2\cdot4}}} \end{array}$

$\begin{array}{*{20}c} {\frac{{ 44 \pm \sqrt {1936 - 1936} }}{{8}}} \end{array}$

$\begin{array}{*{20}c} {\frac{{ 44 \pm 0}}{{8}}} \end{array}$

$\frac{44}{8} = 5.5$

So c has one solution: 5.5

Hope this helped (and I'm sorry I'm late!)

4 0

3 years ago

Hey! Giving away 50 free points! Just type "octopus" as an answer and I will give you 5 star, a heart, and brainly will give you

Arturiano [62]

Answer:

octopus

Step-by-step explanation:

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4 years ago

Read 2 more answers

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Mariulka [41]

Answer:

Assuming that "x" symbol indicates multiplication, the answer should be 4/3. If you need the decimal form, it would be 1.3. If you want the mixed number form, it'd be 1 1/3.

Step-by-step explanation:

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3 years ago

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Please help me im to Dum. Please show all work.

Paladinen [302]

Answer:

17.3

Step-by-step explanation:

ACD=50

50-32.7=17.3

x=17.3