All categories

3 years ago

Solve the inequality x/4 - 2x/4>-3

Mathematics

2 answers:

Jobisdone [24]3 years ago

6 0

Step 1: Simplify both sides

-1/4x > -3

Step 2: Multiply both sides by 4/-1

(4/-1) * (-1/4) > (4/-1) * (-3)

Final Conclusion: [x < 12]

Dennis_Churaev [7]3 years ago

4 0

Answer:

x<12

Step-by-step explanation:

You might be interested in

Type the correct answer in each box.

mote1985 [20]

Answer:

1. r=17

2. (-15,14) or (-15,-16)

Step-by-step explanation:

The radius of the circle is the distance from the center to the point on the circle, thus

$r=\sqrt{(8-(-7))^2+(7-(-1))^2}=\sqrt{15^2+8^2}=\sqrt{225+64}=\sqrt{289}=17.$

The equation of the circle is

$(x-(-7))^2+(y-(-1))^2=r^2\\ \\(x+7)^2+(y+1)^2=289.$

If point lies on this circle, then its coordinates satisfy the circle's equation:

$(-15+7)^2+(y+1)^2=289\\ \\64+(y+1)^2=289\\ \\(y+1)^2=225\\ \\y+1=15\text{ or }y+1=-15\\ \\y=14\text{ or }y=-16$

8 0

3 years ago

What is the initial value of e=3h+200.

Dmitrij [34]

Answer:h=e-200/3

Step-by-step explanation:

7 0

3 years ago

Radon: The Problem No One Wants to Face" is the title of an article appearing in Consumer Reports. Radon is a gas emitted from t

brilliants [131]

Answer:

a) $\bar{x}$ =4.63 md=4.55 mo= 1.9 b) Sample Standard Deviation≈ 2.58 Coefficient of Variation=55.72% Sample Range=6.9

Step-by-step explanation:

Mean

$a)\bar{x}=\frac{1.9+ 2.3+ 5.7+ 5.2+ 1.9+ 8.8+ 3.9+ 7.3}{8} =\frac{37}{8}=4.625=\approx 4.63$

For the Median, we have to order the entries. So, ordering it goes:

1.9 1.9 2.3 3.9 5.2 5.7 7.3 8.8

Since we have even entries $\frac{\frac{n}{2}+\frac{n}{2} +1}{2}=\frac{4th+5th}{2}=\frac{3.9+5.2}{2}=4.55$

mode

The mode for this data 1.9 1.9 2.3 3.9 5.2 5.7 7.3 8.8 is 1.9

Sample Standard Deviation

Here it is the formula to calculate it:

$_{x}=\sqrt{\frac{\sum (x_{i}-\bar{x})^{2}}{n-1}}\\ S_{x}=\sqrt{\frac{46.855}{7}}\approx 2.58$

Coefficient of Variation

CV is the quocient between sample Standard deviation over Mean and it is used to make comparisons.

$CV=\frac{S_x}{\bar{x}}*100%=\frac{2.58}{4.63} \approx 55.72%$

Range

The difference between the highest and the lowest value of this sample

8.8-1.9=6.9

4 0

3 years ago

A negative integer + a positive integer

timurjin [86]

Answer:

either negative or positive integer

hope that helps uhh :)

6 0

3 years ago

Read 2 more answers

Point B is between A and C. AB=4x - 6, BC=2x+2, and AC=44 in. Find AB and BC.

GREYUIT [131]

Please double check my work
AB = -2x
BC = 4x

7 0

4 years ago