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earnstyle [38]
3 years ago
8

Help meeeeeee please choose ALL of the correct ones​

Mathematics
1 answer:
Virty [35]3 years ago
3 0

Answer:

The top middle, top right, and bottom left shapes all have obtuse angles.

Step-by-step explanation:

Obtuse angles are greater than 90 degrees, so just look for the angles that don't look like 90 degrees.

I hope this helps!

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Which system of linear inequalities is represented by the<br> graph?
ElenaW [278]

Answer:

The solution of a linear inequality is the ordered pair that is a solution to all inequalities in the system and the graph of the linear inequality is the graph of all solutions of the system. Graph one line at the time in the same coordinate plane and shade the half-plane that satisfies the inequality

5 0
3 years ago
I need HELP PLZZZZ THIS IS DUE AT 7:00
valkas [14]

Answer:

27.5

Step-by-step explanation:

1.5(5)+20=27.5

:) hope its  right :)

7 0
2 years ago
Read 2 more answers
Since the area under the normal curve within two standard deviations of the mean is 0.95, the area under the normal curve that c
alukav5142 [94]

Answer:

X \sim N (\mu ,\sigma)

And for this case we know this condition:

P(\mu-2\sigma

By the complement rule we know that:

P(X< \mu -2\sigma \cup X>\mu +2\sigma) = 1-0.95=0.05

But since the distribution is symmetrical we know that:

P(X\mu +2\sigma) = 0.025

So then the statement for this case is FALSE.

b. False

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

For this case if we define the random variable of interest X and we know that this random variable follows a normal distribution:

X \sim N (\mu ,\sigma)

And for this case we know this condition:

P(\mu-2\sigma

By the complement rule we know that:

P(X< \mu -2\sigma \cup X>\mu +2\sigma) = 1-0.95=0.05

But since the distribution is symmetrical we know that:

P(X\mu +2\sigma) = 0.025

So then the statement for this case is FALSE.

b. False

5 0
3 years ago
I would appreciate some help
laila [671]

Answer:

3 peices left over

Step-by-step explanation:

4x10=40

40+5=45

45/6=7.5

7x6=42

45-42=3

5 0
3 years ago
Read 2 more answers
Which of the binomials below is a factor of this trinomial 4x^2-4x-120
tatyana61 [14]
<span>4x^2-4x-120
=4(x^2 - x - 30)
=4(x-6)(x+5)

answer
</span><span>B.x-6</span>
7 0
3 years ago
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