Mathematics High School

x^2+6x≤-5 with an explanation pls

Answers

Answer 1

Answer:

−5≤x≤−1

Step-by-step explanation:hope that helps :)))

x2+6x=−5

x2+6x−(−5)=−5−(−5)(Subtract -5 from both sides)

x2+6x+5=0

(x+1)(x+5)=0(Factor left side of the equation)

x+1=0 or x+5=0(Set factors equal to 0)

x=−1 or x=−5

Check intervals in between critical points. (Test values in the intervals to see if they work.)

x≤−5(Doesn't work in original inequality)

−5≤x≤−1(Works in original inequality)

x≥−1(Doesn't work in original inequality)

Answer:

−5≤x≤−1

Related Questions

3/4 divided by 1/8 show work pls

Answers

Answer:

Step-by-step explanation:

a fraction divided by a fraction can be multiplied by the reciprocal. so...

instead of 3/4 ÷ 1/8, you do

3/4 * 8/1 which equals

24/4 which equals

Answer:

Step-by-step explanation:

3/4 ÷ 1/8 = 3/4 × 8/1 = 24/4 =6

*8×3=24 *4×1=4

*24÷4=6

Whick equation describes the line that passes through (-3, 1) and is parallel to the line y = 4x + 1?

Answers

Answer:

y = 4x + 13

Step-by-step explanation:

First of all, if they are parallel, they must have the same slope, so the 4x is the same. all we need to do now is to change the b to make it cross the point (-3, 1). Doing so, we see that the y-intercept becomes 13. Therefore, the equation is y = 4x + 13.

[tex]\sqrt{8} + \sqrt{2}[/tex]

Answers

√8 + √2

2√2 + 1√2

3√2

I hope this helps

#2) A 12-ounce bag of marbles contains 64 marbles. Assume the relationship between weight and number of marbles is proportional. How much would you expect a bag of 160 marbles to weight (in ounces)? *

Answers

Answer:

Step-by-step explanation:

a 12 ounce bag = 64 marbles

So first you want to find out how much each marble weighs. To do this divide 12 ounces by 64.

1 marble = [tex]\frac{12}{64} = \frac{3}{16} ounces[/tex]

To find the weight of 160 marbles, you just multiply the weight of 1 marble by 160.

160 marbles = [tex]\frac{3}{16}[/tex] ×[tex]160[/tex] = 30 ounces.

1. Mona sells previously enjoyed rare CDs for $5/ea. and rare vinyl records for $7/ea. She sold a total of 1,200 CDs and records in a particular month, with total sales of $6,760. So:
a. What is the equation? Solve it.
b. How many CDs and records were sold?
c. What were the total dollar sales of each?

hi guys i hope you can help me to answer this question! thanks

Answers

Answer:

C or A

Step-by-step explanation:

I think this is write

PLEASE HELP ASAP WILL GIVE BRAINLIEST TO CORRECT ANSWER

Assuming you want to arrive as close to the scheduled time as possible, from which airline should you buy your ticket? Justify your response by addressing both the measures of center and spread of the distributions.

Answers

Answer:

Airline Q because it has the most on time arrivals and it is spread out to have more early arrivals than airline p

Step-by-step explanation:

Can someone please help me

Answers

The answer is A:

Which of the following fractions can be represented by a terminating decimal?

A.

B.

C.

D.

Answers

You did not include any numbers within your question

Answer:

Step-by-step explanation:

Solve for X, and show the equation you would use to solve.

Answers

Answer:

x = 20

Step-by-step explanation:

There are both consecutive interior angles and are supplementary.

The equation should be written like this:

5x + 50 + x + 10 = 180

Step 1: Simplify both sides of the equation.

5x + 50 + x + 10 = 180

(5x+x) + (50+10) = 180 (Combine Like Terms)

6x + 60 = 180

Step 2: Subtract 60 from both sides.

6x + 60 − 60 = 180 − 60

6x = 120

Step 3: Divide both sides by 6.

[tex]\frac{6x}{6} = \frac{120}{6}[/tex]

x = 20

Hope it helps!!

Which transformation of AB will produce a line segment A’B that is parallel to AB

Answers

Answer:

Step-by-step explanation:

I need some help please

Answers

Answer:

a: y=-1/2x-3/2

b: y= -4x+2

Step-by-step explanation:

Can someone just help me !

Answers

Answer:

[tex]\sqrt{a} 900[/tex] - 2

Step-by-step explanation:

I won't be answering using words.

1. (3a+2a)(6a²+1-3)

2. (5a)(6a²-2)

3. 6a² × 5a - 2 × 5a

4. 6a × 6a × 5a - 2 × 5a

5. 180a × 5a - 2

6. 900a - 2

7. [tex]\sqrt{a} 900[/tex] - 2

Chris is reading a book that has 364 pages she reads 3/4 of them then put the book away for a week then she read 3/7 of the remaining pages how many pages were left to read

Answers

According to my calculations it should be 52 pages

After my salary was increased by 12%, it was $62,720. What was my salary before the increase?
I'll mark brainliest!

Answers

Answer

56,000

Step-by-step explanation:

solve question 2x + 13 =

Answers

Answer:

x= -6.5

Step-by-step explanation:

2x+13=0

2x=-13

x=-6.5

The answer above is correct my dude

Write an inequality to match the problem.
There are at least 28 days in every month.

Answers

Answer:

28 ≥ month

Step-by-step explanation:

Solve the proportion. I need to show much work so a step by step explanation would help!

Answers

Answer:

Solution: x=5

Step-by-step explanation:

Equations

This is an equation in the form of a proportion or ratio:

[tex]\displaystyle \frac{2}{x+3}=\frac{5}{4x}[/tex]

To solve it, we eliminate the denominators by multiplying by both of them.

Multiply by (x+3)(4x):

[tex]\displaystyle (x+3)(4x)\frac{2}{x+3}=(x+3)(4x)\frac{5}{4x}[/tex]

Simplify both sides:

[tex](4x)*2=(x+3)*5[/tex]

Operate:

[tex]8x=5x+15[/tex]

Simplify:

[tex]3x=15[/tex]

Solve for x:

[tex]x=15/3=5[/tex]

Solution: x=5

Sue graphed the formula for converting temperatures from Fahrenheit to Celsius.
If the temperature is 50 degrees Fahrenheit, what is the temperature in Celsius?

Answers

Answer:

10° C

Step-by-step explanation:

(50°F − 32) × 5/9 = 10°C

Write a equation
The line which passes through (-3,-3) and (2, 1) point slope(ps)

Answers

y = 4/5x - 3/5 ur welcomee

If a bike goes 12 meters per second (m/s), how fast does it go in km/h?

Answers

So the conversion to meters to kilometers is 0.012 and then you multiple it by 60 because there is 60 seconds and then you multiple that anwser by 60 because there is 60 minutes in a hour then that gets you out to 43.2 km per hour

Convert 75 seconds to hours

Answers

It is 0.02083333 hours.

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