All categories

3 years ago

Which graph shows the solution set for |x - 3| < 4?

Mathematics

2 answers:

ikadub [295]3 years ago

4 0

Answer:

see below

Step-by-step explanation:

|x - 3| < 4

To remove the absolute values, we need to make two inequalities, one positive and one negative

x-3 < 4 and x-3 > -4

Add 3 to each side

x-3+3<4+3 and x-3+3 > -4+3

x<7 and x >-1

-1 <x <7

lawyer [7]3 years ago

4 0

Answer:

Step-by-step explanation:

One way to do this is to interpret |x - 3| < 4 is to say: "the distance of variable x from the center 3 is less than 4."

On the left side: measuring 4 units to the left from 3, mark an open circle (since x does not actually touch -1).

On the right side: measuring 4 units to the right from 3, mark an open circle at 7.

So the correct graph consists of the line segment connecting x = -1 and x = 7 but not touching or including these two numerical values.

Next time, please share the four possible answers.

You might be interested in

How do I solve 4/9+9/2 and write my answer as a mixed number?

jenyasd209 [6]

9 has factors of 3*3.

2 is prime, so no factors.

from those two denominators, we can get the LCD of hmmm simply their product, namely 18.

$\bf \cfrac{4}{9}+\cfrac{9}{2}\implies \stackrel{\textit{using the LCD of 18}}{\cfrac{(2)4+(9)9}{18}}\implies \cfrac{8+81}{18}\implies \cfrac{89}{18}\implies 4\frac{17}{18}$

now, recall that, to get the mixed fraction, we divide 89 ÷ 18, the quotient goes up front, the "4", and the remainder is the one atop, the "17".

8 0

4 years ago

Use the distance formula, to calculate the ratio of a side length on DEF to the corresponding side length on ABC . Show your wor

wolverine [178]

Step-by-step explanation:

this is the exact answer!!

5 0

3 years ago

-1/3x=2/5x2/3 solve this

Nat2105 [25]

I hope this helps you

8 0

3 years ago

A certain kind of sheet metal has, on average, 3 defects per 18 square feet. Assuming a Poisson distribution, find the probabili

Fofino [41]

Answer:

75.8% probability that a 31 square foot metal sheet has at least 4 defects.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given time interval.

In this problem, we have that:

3 defects per 18 square feet.

So for 31 square feet, we have to solve a rule of three

3 defects - 18 square feet

x defects - 31 square feet

$18x = 3*31$

$x = \frac{31*3}{18}$

$x = 5.17$

So $\mu = 5.17$

Assuming a Poisson distribution, find the probability that a 31 square foot metal sheet has at least 4 defects.

Either it has three or less defects, or it has at least 4 defects. The sum of the probabilities of these events is decimal 1.

$P(X \leq 3) + P(X \geq 4) = 1$

We want $P(X \geq 4)$

$P(X \geq 4) = 1 - P(X \leq 3)$

In which

$P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)$

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 0) = \frac{e^{-5.17}*(5.17)^{0}}{(0)!} = 0.0057$

$P(X = 1) = \frac{e^{-5.17}*(5.17)^{1}}{(1)!} = 0.0294$

$P(X = 2) = \frac{e^{-5.17}*(5.17)^{2}}{(2)!} = 0.0760$

$P(X = 3) = \frac{e^{-5.17}*(5.17)^{3}}{(3)!} = 0.1309$

$P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.0057 + 0.0294 + 0.0760 + 0.1309 = 0.242$

Finally

$P(X \geq 4) = 1 - P(X \leq 3) = 1 - 0.242 = 0.758$

75.8% probability that a 31 square foot metal sheet has at least 4 defects.

8 0

4 years ago

5(x+2)-7=-32 solve variable. include steps, also check your answer!

Vika [28.1K]

Answer:

Step-by-step explanation:

5x+10-7=-32

5x+3=-32

5x+3-3=-32-3

5x=-35

X=-35/5

X=-7

Check:

5(-7+2)-7=32

5(-5)-7=32

-25-7=-32

-32=-32

This is correct

Mark me as brainliest plz

4 0

3 years ago

Read 2 more answers