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puteri [66]
3 years ago
13

Solve using method of intervals. please show step/explain. thank you

Mathematics
1 answer:
Tema [17]3 years ago
8 0

Answer:

x ≤ 3

Step-by-step explanation:

\frac{x-3}{x+4} ≤ 0

Multiply both sides by (x+4) so that both sides do not have any fractions.

x - 3 ≤ 0 × (x+4)

Remember that anything multiplied by 0 becomes 0.

x - 3 ≤ 0

Add both sides by 3 so that there is only x on the left side. (x - 3 + 3 = x)

x ≤ 0 + 3

x ≤ 3

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Graph the equations to solve the system. <br> y=3x+3<br> 1/3y+x+1
riadik2000 [5.3K]

Given equation is y=3x+3 and \frac{1}{3}y=x+1

Let's simplify the 2nd equation \frac{1}{3}y=x+1 before we can start graph so that calculation will be easy

\frac{1}{3}y=x+1

multiply both sides by 3 to cancel out fractions

3*\frac{1}{3}y=3*x+3*1

y=3x+3

which is exactly same as the first equation so graph of both will be exactly same and solution will be infinitely many solutions.

y=3x+3 has y-intercept 3 so first point will be (0,3). Slope is 3 so rise 3 unit up then 1 right and graph the new point.


4 0
4 years ago
3. Solve the following word problems:
klasskru [66]

mariana bedoya sanches

3 0
3 years ago
What is the mathematical answer for this matematicas question 5 1/5÷ 1/4
givi [52]

Answer:

Step-by-step explanation:

Convert mixed fraction to improper fraction. Then use KCF method

Keep the first fraction.

Change the division operation to multiplication.

Flip the second fraction

5\frac{1}{5}=\frac{26}{5}

5\frac{1}{5} ÷ \frac{1}{4}  = \frac{26}{5} ÷ \frac{1}{4}

          = \frac{26}{5}*\frac{4}{1}\\\\= \frac{26*4}{5}\\\\=\frac{104}{5}\\\\=20\frac{4}{5}

8 0
3 years ago
Read 2 more answers
2x^{3} -34x^{2} +131x+11
Vladimir79 [104]

Answer:

Step-by-step explanation:

2x3−34x2+131x+11

2x3−34x2+131x+11

=(x−11)(2x2−12x−1)

Answer:

(x−11)(2x2−12x−1)

8 0
3 years ago
I need help for these two<br> Im3
frez [133]
For number one you do 15-9 which is 6 and that’s the answer

For number to do 25-18 which is 7 and that’s the answer for that one
6 0
2 years ago
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