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3 years ago

HELPPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

mixer [17]3 years ago

6 0

Answer:

choice three is correct

Explanation:

it just is :)

DedPeter [7]3 years ago

5 0

Answer:

Step-by-step explanation:

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Determine whether the following statement is true or false. Explain.

andrey2020 [161]

Answer:

Hey its D I think.

Step-by-step explanation:

1. The way I think of it is putting a negative number in front as a x value.

I chose -1,-2 and -3.

-1-5<0 -2-5<0 -3-5<0

-6<0 -7<0 -8<0

The reason why it satisfies because negative number are all real numbers less than one. Hope that helps:)

3 0

3 years ago

Which table represents a function?

Drupady [299]

Answer:

use photo math the two on the right are different lol that's all i know

Step-by-step explanation:

8 0

3 years ago

Gribbles are small, pale white, marine worms that bore through wood. While sometimes considered a pest since they can wreck wood

Stells [14]

Answer with explanation:

As per given , we have

A sample of 50 gribbles finds an average length of 3.1 mm with a standard deviation of 0.72.

i.e. n= 50

Degree of freedom = n-1=49

$\overline{x}=3.1\ mm$

$s=0.72\ mm$

The point estimate of the population mean is equals to the sample mean.

i.e. The best estimate for the length of gribbles= 3.1 mm

Also, population standard deviation is unknown , then the confidence interval would be :

$E=t_{\alpha/2, df}\dfrac{s}{\sqrt{n}}$

For df= 49 and significance level of 0.05 , the t- value (using t-distribution table) would be :

$t_{0.05/2, 49}=t_{0.025, 49}= 2.010$

Now, Margin of error : $E=(2.010)\dfrac{0.72}{\sqrt{50}}$

$=0.204664986747\approx0.20$

95% confidence interval : $(\overline{x}-E,\ \overline{x}+E)$

$i.e.\ (3.1-0.20, 3.1+0.20)=(2.90,\ 3.30)$

3 0

4 years ago

To the nearest hundredth, what is the value of x? 42.15 43.11 52.07 54.26

Gnesinka [82]

Answer:

52.07

Step-by-step explanation:

sin of an angle is the opposite side over the hypotenuse

sin 51 = x/67

Multiply each side by 67

67 sin 51 = x

52.06877942 =x

Rounding to the nearest hundredth

52.07 =x

3 0

3 years ago

Which set of directions correctly describes how to plot the point (5, 7) on the coordinate plane?

sweet [91]

Answer:3

Step-by-step explanation:

8 0

3 years ago