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Kamila [148]
2 years ago
13

Which numbers represent the solutions to the inequality below? Check all that apply.

Mathematics
1 answer:
Degger [83]2 years ago
3 0
Your answer will be -3 only
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Just number 23 super confused
vodka [1.7K]

Answer:

x = -7

Step-by-step explanation:

This is an exponential equation.

\frac{1}{2}^x=128

We need to take log(or ln) of both sides and use logarithm property to solve this.

So, let's take ln of both sides, so we have:

ln(\frac{1}{2}^x)=ln(128)

Now, we will use this property shown below to further simplify:

ln(a^b)=bln(a)

So, we now have:

ln(\frac{1}{2}^x)=ln(128)\\xln(\frac{1}{2})=ln(128)\\x=\frac{ln(128)}{ln(\frac{1}{2})}\\x=-7

The value of x is -7

6 0
3 years ago
Are the grades shown in the math class below normally distributed? Explain your answer.
IgorLugansk [536]

Since the histogram is not symmetric, the grades shown in the math class below are not normally distributed.

<h3>When does a histogram represent a normal distribution?</h3>

A histogram represents a normal distribution if it symmetric.

In this problem, we have that:

  • 57% of the grades are on the left tail.
  • 25% of the grades are on the center.
  • 18% are on the right tail.

Since the percentages at the tails are different, the histogram is not symmetric, and  the grades shown in the math class below are not normally distributed.

More can be learned about the normal distribution at brainly.com/question/24537145

#SPJ1

8 0
2 years ago
Please I need help! answer below.<br> Is A. B. C. D.?
Maksim231197 [3]

Answer:

it is B

Step-by-step explanation:

6 0
3 years ago
The surface area of the top surface of the water in a circular swimming pool is about 206 square feet. Estimate the radius of th
nataly862011 [7]
Area=pi (radius^2) Plug in numbers. 206=3.14 (r^2) Divide both sides by 3.14 65.61=r^2 Then square root both sides. 8.1ft =r Then round to the nearest foot. r=8ft
3 0
3 years ago
Obtuse is to more than 90° as reflex is to​
Simora [160]

9514 1404 393

Answer:

  >180° (more than 180°)

Step-by-step explanation:

Angles are classified as ...

  • acute: < 90°
  • right: = 90°
  • obtuse: > 90°
  • straight/linear: = 180°
  • reflex: > 180°

It seems that we're looking at definitions:

  obtuse : >90° :: reflex : >180°

7 0
2 years ago
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